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(meteorobs) Radio Meteor Obs. Bull. April 2002 Lyrids



Radio Meteor Observation Bulletin No. 105    www.rmob.org       April 2002

Observer:  Enric Fraile Algeciras
Location:  Paseo Bonanova, 8 Barcelona  (02 07' E, 41 24' N)
Frequency: 48.24715 MHz
Transmitter Location:  Biedenkopf C2 TV, Video Frequency 48.250 MHz,
           ERP 100 kW,  Azimuth 90 +/-65
Antenna:   3 element Yagi Azimuth 200 deg (NE), elevation 20 deg
Receiver:  home made converter 20 dB gain, 1 dB noise and Kenwood TS-830S.
           10 dB attenuator in the receiver to reduce direct reception
Sensitivity: 0.25 uV for 10 dB S/N
Observing method: the audio signal of the video carrier is received using
           a narrow CW filter (500 Hz) and fed into the PC in real time.
Data sampling system: own written software "MSD" with sound card.


    |   April 2002
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h|                                     33  30  26  29  12  16
  1 |                                     27  29  27  27   8   9
  2 |                                     28  33  24  24  17   8
  3 |                                     37  44  33  29  28  25
  4 |                                     32  39  55  39  31  25
  5 |                                     40  48  33  49  33  36
  6 |                                     48  60  38  39  30  19
  7 |                                     47  51  49  48  17  34
  8 |                                     55  56  49  28  30  27
  9 |                                     60  52  44  40  21  31
 10 |                                     42  37  39  42  20  26
 11 |                                     29  30  35  34  15  25
 12 |                                     39  66  41  26  18  22
 13 |                                     51  46  49  45  26  27
 14 |                                     50  47  34  36  40  37
 15 |                                     39  29  27  17  25  20
 16 |                                     29  24  23  25   7  22
 17 |                                 19  18  14  16   9  13   3
 18 |                                 18  15  13  27  14  13  11
 19 |                                 20  28  17  22   9  15   5
 20 |                                 27  23  18  30  13  17  18
 21 |                                 32  19  23  26  19  13  14
 22 |                                 25  33  24  32  13  13  18
 23 |                                 29  26  30  32  10  13  13
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   April 2002

    |   April 2002
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-----------------------------------------------------------
  0h|  7  27  20  14  22  44  35  18  15  20  17  21  19  16  22
  1 | 12  24  15  36  25  33  27  20  21  19  30  28  15  22  16
  2 | 13  17  20  20  27  28  26  39  18  38  24  22  21  18  28
  3 | 16  38  30  27  20  35  29  37  33  39  31  43  36  35  55
  4 | 19  38  32  31  47  34  43  41  42  46  35  58  37  45  46
  5 | 22  56  36  27  46  64  65  47  45  38  39  57  48  54  45
  6 | 44  55  31  31  56  52  60  41  50  51  55  58  71  54  55
  7 | 29  50  35  34  67  56  59  70  52  70  74  67  61  58  64
  8 | 43  54  34  49  65  40  62  63  49  44  63  61  58  42  57
  9 | 35  33  39  31  47  39  52  33  55  53  48  42  53  38  45
 10 | 51  17  30  35  34  33  40  34  51  24  40  50  46  39  32
 11 | 37  26  28  35  35  43  36  46  39  32  29  39  36  33  51
 12 | 54  20  40  49  52  51  43  47  49  55  44  62  39  45  52
 13 | 41  43  40  56  69  64  48  59  65  65  65  70  68  47  71
 14 | 59  46  37  45  49  51  47  61  44  60  59  59  71  60  48
 15 | 26  28  35  34  37  29  32  45  19  37  35  42  44  34  50
 16 | 29  30  19  25  30  22  26  31  21  33  15  25  28  27  30
 17 | 22  12  14  20  19  14  16  12  23  25  28  21  37  19  26
 18 | 13  17  17  23  26  19  11  17  16   8  18  21   9  19  17
 19 | 17   7  21  24  17  17   5   9  11  14  26  16  22  13  21
 20 | 14  15  22  15  14  19  22  25  22  27  16  27  17  23  27
 21 | 30  23  22  24  24  18  22  23  25  27  32  29  26  36  20
 22 | 22  19  28  22  26  37  28  23  14  23  30  28  32  19  20
 23 | 26  27  21  24  24  40  33  24  21  19  28  28  22  26  27
 ---+-----------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |   April 2002

Notes:
. ? local interference or propagation opening
. F possible F.A.I. or other propagation opening


      Enric Fraile Algeciras

---------------------------------------------------------------------------
Observer: Michael Boschat
Location: Halifax, Canada (63 36'W, 44 39'N, 58 meters above sea level)
Listening Frequency: 83.24 MHz
Receiver: Icom R-10
Antenna : resonant dipole
Antenna Direction: Horizontally polarized with lobes in E-W plane, elev 0 deg
Filter  : high-Q (Q at least 300) bandpass filter between antenna & receiver.
Listening Mode: CW
Recording method: listening by ear

                          April 2002

           Number of meteors heard in one hour interval

    | UT
Apr | 10h 11  12  13  14  15  16
----+---------------------------
 3  |  -   -   -   -   -   -   -
 4  |  -   -  19   -   -  13  16
 5  |  -  10  34  21  16  38  33
 6  |  -   -   -  15  10   -   -
 7  |  -   -  14   -   -   -   -
 8  |  -   -   -   -   -   -   -
 9  |  -  25  11*  -   -   -   -
10  |  -   -  12  20  32  10   -

13  |  -  18  12  11   -   -   -
14  |  -   -   -   -   -   -   -
15  |  -  21  16  43  20   -   -

20  |  -  30  18  23   -   -   -
21  |  -   -   -   -   -   -   -
22  | 30  32  24   -   -   -   -
23  | 10  20  12  38   -   -   -
24  |  -  31  30  38  27   -   -
25  |  -   -  30  21   -   -   -
26  |  -   -  33  19   -   -   -

29  |  -  43  34  32   -   -   -
30  |  -  45  42  41  38   -   -
----+---------------------------
Apr | 10h 11  12  13  14  15  16
    | UT

Notes:
. no corrections for radiant position made to the counts.
. ( - ) means no observations made.
. * = Interference
. + = Listened for 30 minutes only.


      Mike Boschat

---------------------------------------------------------------------------
Observer:  Maurice De Meyere
Location:  Deurle, Belgium  (3 37' E, 51 00' N)
Frequency: 66.29 MHz since July 2001
Antenna:   crossed Yagi (x form), 4 elements, astronomical azimuth 270 deg
           (= E), elevation 27 deg.
           Antenna amplifier: 25 dB  max level  90 dBmuV
Receiver:  commercial, Progresson 447A, TESLA (Bratislava)
           The receiver was calibrated with a Marconi TF2008 signal
           generator. Sensitivity: 5 muV (modulation frequency
           1000 Hz, frequency sweep 38 kHz) at (S+N)/N = 20 dB.
           SWR of antenna alone at 66.5 MHz: 1.4/1 (good to very good),
           measured with MFJ/259P SWR analyzer (HF-VHF 1.8 MHz to 170 MHz)
           on Sep 28, 1998.
Observing method: automated setup, 150 samples/second, 8 bit resolution.
           [Time and details of all individual meteor reflections are stored
           on file in the Ghent University format (Prometeos), and are
           available for further analysis. Reduction software for DOS and
           Windows available].


                           April 2002

   Raw counts of reflections with a duration of at least 0.027 s
   during one hour interval starting at UT:

  Apr |  UT
 2002 |  00h  01   02   03   04   05   06   07  |  20h  21   22   23
------+-------------------------------------------------------------
    1 |  44    9   14   36   38   55   54   44  |       16    8    8
    2 |   7    7   14   28   43   30   52   42  |        6    7    7
    3 |   9    7   14   28   15   35   38   40  |       12    4    4
    4 |   4    8   14   32   41   42   61   51  |       13   13    8
    5 |   4    7   12   21   29   33   34   42  |       10    6    3
    6 |   7    4   16   33   26   34   44   63  |       12    4    6
    7 |   3    9    2   17   48   37   35   40  |        7   13    9
    8 |   4    6   12   27   33   36   45   35  |        9   10    7
    9 |   5    3   12   69   37   36   82   70  |       27   18   12
   10 |  14    9   10   14   50   34  123   60  |       15   11    7
   11 |   7    6   15   21   44   64   56   44  |       13   13   15
   12 |   9    8    7   44   33   44   37   54  |
   13 |                                         |       17   15    9
   14 |  17   18   17   22   32   48   50   79  |       11   15   22
   15 |  18   16   11   52   65   58   50   33  |       19   20    7
   16 |   8   14   20   33   37   65   55   33  |       53   15   22
   17 |  12   10   12   25   35   40   53   36  |       22   14    3
   18 |   7   11    5   17   32   30   37   51  |       12    6    2
   19 |  12    5    6   29   24   31   49   -   |       19   23    8
   20 |  13   10   10   27   31   42   28   61  |       12   11   14
   21 |   4    6   10    9   59  106   58   91  |       31   14   12
   22 |  12    5   12   55   58  152  106   84  |       50   31    9
   23 |   8    4    8   47   46   69   89   90  |        5    8    6
   24 |  10   15    4   25   41   76   57   47  |       15    6    5
   25 |   8    3    6   17   25   30   78   29  |       11   12    8
   26 |   2    5   18   31   66   66   67   47  |       24   22   15
   27 |   9    9   27   36   49   89   48   47  |       16   16   26
   28 |   3    9    8   18   57   62   75   54  |       13   12    6
   29 |  10    8   16   35   39   76   89   50  |       16    8   19
   30 |   6    6    8   52   45   51   91   50  |       10    9   10
------+-------------------------------------------------------------
 2002 |  00h  01   02   03   04   05   06   07  |  20h  21   22   23
  Apr |  UT


   Raw counts of reflections with a duration of at least 1.00 s
   during one hour interval starting at UT:

  Apr |  UT
 2002 |  00h  01   02   03   04   05   06   07  |  20h  21   22   23
------+-------------------------------------------------------------
    1 |  17*   1    2    2    2    4    2    5  |        4*   2*   1
    2 |   1    0    0    6*   3    3    8    7  |        2*   1    3*
    3 |   1    1    2    3    0    4    1    3  |        2    3*   1*
    4 |   1*   0    2    1    2    4    2    3  |        1    3*   1
    5 |   0    0    1    6*   2    1    2    4  |        1    2*   0
    6 |   2*   0    0    7*   3    4    2   12  |        2    0    1
    7 |   0    2*   0    2   10*   9*   3    4  |        1    3*   0
    8 |   1-   0    1    3    4    6    9    4  |        2*   1    0
    9 |   0    1*   2   16*   3    4   10   11  |        4*   5    0
   10 |   4*   1    3*   1   11*   2   23   18* |        2    1    1
   11 |   2*   2*   3    2    4   11    5    1  |        3*   1    3
   12 |   1    4*   0    7    2    2    1    6  |
   13 |                                         |        1    4*   0
   14 |   2    5*   2    2    2   14*   3   20* |        1    2    2
   15 |   4*   2    2    6   11    8   11*   5  |        2    4    0
   16 |   2*   2    2    0    4    5    8    4  |       32*   2    3
   17 |   2    1    0    4    4    5   10    3  |        6*   1    0
   18 |   0    4*   1    0    2    1    1    9  |        2    1    1*
   19 |   1    0    1    4    2    1    7    -  |        3    5*   0
   20 |   1    1    1    3    6    6    1    4  |        3*   1    3*
   21 |   0    0    1    1   11   17   10   14  |       10*   0    1
   22 |   1    1    2   10    3   29   16   12  |       16*  13*   1
   23 |   2*   0    0    8    4   12   13   21* |        1    0    0
   24 |   5*   2   10    5    3   10    6    4  |        3    1    1
   25 |   2*  10    0    1    4    1   13    4  |        1    2    1
   26 |   0    0    2    3    7    5    1    3  |        4    3    4*
   27 |   2*   4*   5    5    2    7    7    3  |        3    5*   9*
                    
   28 |   1*   1    3*   4*   7    5    9    2  |        2    1    1
   30 |   0    1    0   15*   0    3    9    3  |        4*   1    3
                             
------+-------------------------------------------------------------
 2002 |  00h  01   02   03   04   05   06   07  |  20h  21   22   23
  Apr |  UT

Notes:
 . blank = no observation
 . ? = possibly affected by Es, interference
 . local time = UT + 2 hour
 . * warning for relative high number of long duration reflections,
     an indication for potential stream activity.


      Maurice De Meyere

----------------------------------------------------------------------
Location: Astronomical Observatory, Ghent University, Belgium
          (ED50 coordinates: 3 42' 32" E, 51 01' 25" N)
Antenna (2x): 4 elements horizontal Yagi, pointed East, elevation 20 deg
Antenna amplifier: 10 dB gain
        narrow band resonance lambda/4 antenna filter
Frequency: (1)=66.29 MHz (signal) and (2)=65.3 MHz (interference control)
Receiver (2x): modified commercial FM receiver
Data acquisition: 12 bits PC-based A/D convertor, 250 Hz sampling rate
Interference rejection:
   dual setup: receiver (1) tuned at distant transmitter, receiver (2)
   tuned at empty frequency. Anti-coincidence measurement rejects
   registration of broadbanded spurious signals (lightning, computers,
   ignition motors, etc).
Further information:
   see WWW page (additional info + observational data)
   http://allserv.rug.ac.be/~hdejongh/astro/meteor/meteor.html
Data format:
   results are shown as total reflection time, expressed as
   a percentage. The actual number shows 10 times this value.
   When no figure is shown, the equipment was either out of service,
   or results could have been affected by interference, sporadic-E.

   -------------------------------------------------------------
   | Apr 2002 | 10x % reflec. time | horiz: day | vert: time UT|
----------------------------------------------------------------
   |   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
---+------------------------------------------------------------
 0h|   6   4   5   4   9   5   2   4   2   3   7   4   2   6   3
 1 |   6   5   6   6   6  10   4   2   3   3   4   3   6   5   7
 2 |  22  16   7  13  12   5   6   6  17   6   6  14   5   7   9
 3 |  22   9   9  24  35  12  23   8  10  20  10  12  12  20  14
 4 |  19  10  15  16  15   7  38  14  11   3  16  12  16  21  16
 5 |  18  30  17  33  20   6   8  30  28  21  12   9  10  22  21
 6 |  23  33  35  14  54   6  10  13  65  12  16  15  29  11  11
 7 |  32  16  37  12  27  21  13  12  22  14  14  25  15  20  12
 8 |  26  11  25  35  35  27  15  32  12  16   8  22  19  20  15
 9 |  33  25  18  55  15  14  13  22  14  21  19   9  17  26  12
10 |  45  19  41  28  23  11  18  12  19   9  11  11  33  14  23
11 |  20  17  21  15  22  14   9  13  16  17   7  15   8  18  15
12 |  21  13  18  12  17  10   7   6   9   8   8  11   9  10   7
13 |  10   7  10  10  11  14   9   8   8   7   7  11  19   7   6
14 |   7  19   3  13   3   3   8   1   3   2   4   3   9   6   3
15 |   7   2   6   4   4   6   3   3   3   2   5   3   7   5   4
16 |   4  14   4   8   2   3   3   9  11   4   2   2   3   1   7
17 |   3   3   5   3   3   5   2   2   3   5   4   3   4   2   2
18 |   4   4   3   4   3   7   4   3   2   2   4  31   7   5   3
19 |   9   9   7   4   4   4   2   3   4   1   2   2   4   4   4
20 |  13   7   8   8   3   3   4   5   2   6   3   3   3   3  10
21 |   6   4   6   9   5  10   3   6   6   7   2   8   4   5   6
22 |   4   5   4   2   3   3   2   2   1   0   2   2   2   2   2
23 |   3   4   5   6   3   2   0   2   2   2   4   2   3   5   3
---+------------------------------------------------------------
   |   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15

   -------------------------------------------------------------
   | Apr 2002 | 10x % reflec. time | horiz: day | vert: time UT|
----------------------------------------------------------------
   |  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
---+------------------------------------------------------------
 0h|   4   4  10   3   3  15   8  10   8   4   4   7   6   3   4
 1 |   6   4   3   4   2  15   8   5   3   6   4  12   6   8   4
 2 |   3  11   6   6   6  12  38  19  10   5  11  12  12   7  18
 3 |  12  16   7  11  12  37  76  44  30  10  26  14  22  15  14
 4 |  32  17   7  16   9  47 124  71  42  10  23  13  22  18  15
 5 |   9  47  11  18   9  36  83  68  26  36  16  32  30  18  38
 6 |  18  22  13  34  51  51  73  61  22  13  31  33  31  28  27
 7 |  24  18  16  24  32  40  46  38  12  25   9  24  28  33  24
 8 |  25  20  21  18  35  33  63  40  16  18  16  35  31  40  21
 9 |  30   9  25  11  34  20  53  23  19  24  21  37  22  19  17
10 |  42  10  17  13  17  20  23  30  23  23  26  55  15  19  15
11 |  21   9  11  26  12  12  42  18  10  17  18  30  21  14  33
12 |       9  18  15  22  14  18  11  11  15  13  58  21  19   6
13 |  26   5   5  11   8  14  23  10  18  13  11  30  15  18   6
14 |   6   4   6  30   7   6   7   6   5  12  16  10  17   8   4
15 |   4   2   5   1   7   4   4   5   4   9  14   7  16  29  27
16 |  10   1   2   2   4   1   4   2   5   4   3   7  29   3   3
17 |   2   2   2   4   1   3   2   5   2   4   3   9   9   9   2
18 |   4   2   4   4   3   3   4   2   2   2   3   4   6   8   2
19 |   5   5   3   6   7   7   6   2   3   5   4   5   2   2   3
20 |      10   4   6   7   8  23   4   3  12   9   5   2   3   3
21 |  15   3   3   6   5   5   6   3   5   6   4  10   3   4   4
22 |   5   1   4   2   3   9   5   5   6   4   4   5   2   2   3
23 |   4   2   6   4   2  10   3   6   5   2   8   3   3   2   5
---+------------------------------------------------------------
   |  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30

Note:
. early but distinct Lyrids maximum on April 22.1


     Pierre De Groote

---------------------------------------------------------------------------
Observer:  Patrice Guérin
Location:  Le Pin, France (0° 39' 28" E , 46° 51' 47" N, alt 180m).
Frequency: 90.25 MHz
Antenna:   5 element Yagi FM,  astronomical azimuth = 40 deg (SW).
           Elevation = 20 deg
Receiver:  FM tuner Yamaha digital synthesizer TX-492RDS.
Observing method: Electronic interface on LINE (Pierre Terrier)
           output audio signal are fed in COM1 of PC 286/12 boosted  8 MB RAM
           METEORV6.0, DOS.  COLORGRAMME ON LINE.

    |   April 2002
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h| 77  21  76 183   3  70  94  42  98  28 124  45  14  30  54
  1 | 98 174  50 147   9  65 102  15 151  23 100  19   3  84  42
  2 |110 210  80 133  20  85  89  31  89  17 101  42  11 151  58
  3 | 79 240  88 135  20  86  74  14 164  24  75  58  24 129 150
  4 |128 192 138 136  49  43  74  80  98  28 135  67  35 109 180
  5 |146 173 118 167  38  94  98  21 105  38 114  29  23 126 225
  6 |195 142 125 177  23  72  81  70 132 127 101   7  17  74 133
  7 |126  47 123 118  12  69 150  58 146 162  50  13   7 135  27
  8 |157  23 174 157  25  22 119  93  81  92  23  35  26  54  84
  9 |166  35 185 135  23  24 130  57  73  48  35  59  41  26  20
 10 |155  76 124  26  35  83 139  70  60  51  35  72  36  37  50
 11 | 69  52  90  38  40  45 155  73  83  43  49  43  40  31  50
 12 | 37  60  58  42  72  55 146  55  64  69  61  32  37  26  46
 13 | 48  83 141  36  56  80 130  81  82  66 151  58  35  40  98
 14 | 56  83 142  63  64  89 107  54  76  48 158  45  25  56 155
 15 | 59  82 132  49  51  83 109  59  99  58 165  43  31  29  23
 16 | 78 104 150  49  49  75 125  77  81  57 137  54  31  35  37
 17 | 58 117 121  44  52  80  59  85  95  62 163  75  52  45  42
 18 | 66  87 129  27  35 137  34  95 105  89 167  47  52  61  29
 19 | 46 106 160   2  22  74   7 110 112  86 135  52  26  81  32
 20 | 25 124 149   7  17  91  13 133 141  87 141  30  32  59  14
 21 | 19 102 215  24  37  72  14 161  74  81 179  32  22 108   8
 22 | 36 126 167   5  55  61  36 163  78  97 135  15  23  85   3
 23 | 22  97 161   6  63  70  40 119  46  67  62  25  21  52  32
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   April 2002

    |   April 2002
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-----------------------------------------------------------
  0h| 67  85  47   1  29 112  92  21  18  18  66  15  22   6   3
  1 | 50 124   4   1  30 106  46  25  54   3 120  21  34   1  13
  2 | 61 170   1   6  37 102  15 143  80  17 112  12  14   3   8
  3 | 79 160  76  11  46  80  16 140  36  39 150   6  18  72  45
  4 |159 204 175  41  64 124  24 190  93  66  80   2   7 110 118
  5 |174 188 206 107  55  80  16 196  54  52  81   0  27  30  63
  6 |169 206 174 143  98 111  16 173 102  92 164   6   4   4  12
  7 |166  82 170 123  81  46  21 111 108  38 144   9  87  11  12
  8 |224 139  82   7  83 176  90  82  77  80 121  10 127   9   7
  9 | 78  30  20  14 136 173  89  89  83 149 135  39 110  60  10
 10 | 18  15  35  25  68  72  26  24  58  87  54  45 129  57  17
 11 | 29  14  46  48  44  51  60  44  35  44  36  43 145  45  35
 12 | 24   8  39  59  28  38  27  22  25  70  73  35  20  21  30
 13 | 57  28  34  48  22  58  43  35  37 104  74  35  18  34  38
 14 | 39  28  54  50  61  39  40  47  78 126  73  38  18  31  29
 15 | 33  28  53  31  56  31  50  37  61 104 110  40  32  22  59
 16 | 28  50  50  59  75  36  87  30  70  94 152  21  20  40  41
 17 | 24  41  61  43  64  34  83  38  35  88  50  37  20  29  31
 18 | 37  32  56  58  23  37  66  16   9  53  19  32  39  33  17
 19 | 39  32  45  32  44  49  48  23   5  36  17  45   5  22  17
 20 | 34  74  33  30  37  79  37  17  16  21  13  17  34   8  45
 21 | 13 126  10   5  55  55  26   4  26 109  20  11  49   4 113
 22 |  2 137   3   4  88  56  24  11  13  50  34  25   7   3 127
 23 | 81  90   1   7 101  42  22  36  15  33  30  71  10  13  29
 ---+-----------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |   April 2002


      Patrice Guérin

---------------------------------------------------------------------------
Observer:  Stan Nelson, KB5VL
Location:  Roswell, NM 88201 (33 26' 38" N, 104 30'55 W, elev 1110 m)
Receiver:  Marantz ST600 receiver in narrow band mode
Frequency: 88.7 MHz
Antenna :  6 element FM beam 45 deg az elevated 15 deg above horizon
Observing method: software Meteor Version 4 Threshold set at 5 on 29 Nov 2000
           Data is being uploaded to NASA's Space Weather web hourly
           see: http://www.spaceweather.com/

    |  April 2002
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h|  4   4   9   4   5   9   6   2   2   3   3   4   2   1   4
  1 |  6   0   5  13   2  10  21   0   5   3   5   2   3   2   2
  2 | 10   6   4   8   9  25   7   0   4   3   1   1   6   2   1
  3 | 16   4   8  14   4  23  23   1   2   4   3   3   2   2   3
  4 | 13  16  17  20  16  19  28   6   3   4   3   8   5   3   5
  5 | 32   8  36  23  18  18  39   1   1   3   2   7   6   4  10
  6 | 18  14  11  22  12  26  91   1   2   7   2  12   5   4   5
  7 | 35  10  15  39  19  23  21   2   2   6   7   8  10   8   4
  8 | 27  11  17  22  18  29  26   5   7   7  13  14  13   9  14
  9 | 30  25  31  43  33  37  27   7   4  11   7  17  21  15  13
 10 | 60  25  47  34  45  54  37   9   5   7   9  11  16   8  10
 11 | 35  18  23  41  32  43  43   7   5   6  10  25 276?  9   7
 12 | 30  36  27  27  23  50  45   6   8  10  14  17 470? 10  18
 13 | 26  20  23  32  25  50  38  10   7  17  10  19 393?  7   9
 14 | 45  24  39  40  54  61  37   7  13  13  18  10 334?  5  14
 15 | 41  23  39  63  46  46  47  10  12  16  20  14  72   9   9
 16 | 32  24  35  37  40  50  57   3  12   5  20  11  23  19  18
 17 | 30  22  66  36  39  41  40  13  11 184? 28  13  16   6  17
 18 | 28  39  34  27 110  30  26   7   6   8  12  29   8   9  11
 19 | 11  16  36  29  42  32  42   7  14  36  19   6  11   1   6
 20 | 21  15  18  17  36  21  11   8   2   5   7  12  26   5  17
 21 | 18  13  23  38  20  23   5   5   3   4   5   8  16   3   6
 22 |  7  19   9  17  11  17   7   4   2   3   3   2   4   3   4
 23 | 12  10   7   9   7  25   1   0   1   0   4   1   4   2   1
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |  April 2002

    |  April 2002
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-----------------------------------------------------------
  0h|  2   1   1   7   0   1   2   0   1   2   1   1   0   1   2
  1 |  0   5   1   1   4   4   7   1   1   3   0   6   0   0   2
  2 |  4   1  10   2   1   3   4   2   2   2   2   3   0   4   0
  3 |  1   5   5   9   0   3   1   8   4   9   4   4   1   3   3
  4 |  7   2   4   5   3   7  10   3   6 354?  8   3   1   1   3
  5 |  4   5   4   1   7   9   7  10  10 630?  7   6   3   3   2
  6 |  5   5  10  10   7   4  17   5   8 377?  8   6   2   4   5
  7 |  5   5  10   8   8   9  15  14   5   3   6   4   3   0   3
  8 | 11  13  13  17   7  13  17  24  12  11  10   6   4   4   2
  9 |  7   9  10  12   4  10  18 386  16  12   6  13   3   5   3
 10 | 14  16   8   8   5  13  14 581   9   9   9  11   5   3   7
 11 | 12   9  11  14  11  17  11 242  10  19   6   8   1  14   8
 12 | 12  16  14   9  13  12  19  18  24  16  11  26   5  11  10
 13 |  8   8  14   7  11   9  20  17  24  19  14  28   6   8   3
 14 | 12  14   8  13  10  15  24  19  12  12  18  15  12   8   7
 15 | 19  16  15  21  13  19  20  12  16  18  15  10  10  14  14
 16 | 17  12  14  13  26  15  20  19  21  17  38  10   3   8   6
 17 | 12       8   8  30  18  45  19  20  19  11  11   8   9   4
 18 |  4      11  12  11   5  11   5  12  13  13   7  10   3   4
 19 |  8   0  12   6   3  10  21  15   8   8  13   2   5   3   1
 20 |  4   6   7  12  37   5  20  12   5   7   7   4   2   7   1
 21 |  5   2   4   1 182?  7   2   8   1   3   8   4   3   4   4
 22 |  3   0   8   5   4   3   4   6   3   4   3   1   4   2   1
 23 |  1   3   1   2   7   2   2  11   0   3   4   0   2   1   1
 ---+-----------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |  April 2002


      Stan Nelson

---------------------------------------------------------------------------
Observer:  Robert Obraz
Location:  Samobor, Croatia (15 44' E , 45 48' N, alt 120 m above sea level)
Frequency: 89.25 MHz since  April 2002
Antenna:   5-element Yagi FM, horizontal polar.
           azimuth 0 deg (N-S), elevation 90 deg (zenith)
Receiver:  SONY ICF-2001 FM PLL SYNTHESIZED RECEIVER
Observing method: Electronic interface on LINE output audio signal are fed
             in COM1: of PC IBM 386  40 MHz.
             METEOR v 5.0 TEXT version processes the signal and records on
             hard disk the time of the events.
             METEOR parameters: THRESHOLD = 10
             COLORGRAMME v 2.2

    |  April 2002
 UT | 14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-------------------------------------------------------------------
  0h|      9  14   3   8   0   2  10  13   1   6   0  39   1   0  15  13
  1 |     21   3   0   3   1   0   0   1   1   7   8  11   1   2   0   6
  2 |      4   8   0   0   0   1   0   0   1   3  26  29  28   8   9   0
  3 |      0   0   0   0   0   0   0   1   1   0   7 112   8   6   0   0
  4 |     16   4 101   0   0   0   0   0  13  10  27  40  26  14  38  10
  5 |     22  15  90   0   0   1   2   2   2  27  40  12   0  16  25  18
  6 |      8   2   7   0   0   0   5  15  16  35   3  16  13   3   3  15
  7 |      5   1   3   0   1   0   2  31   4  45   3  70   2   6  15  14
  8 |     23  10   9   5   3  64   3   5   3  39   8   6   3  11   6  19
  9 |  0  49  13  17   0   7   1  22   0  15  34   8   5   8   1  22  11
 10 |  9  88  12   5   0   2   6  13   7  11   5  13  25   0   8  18   5
 11 |  8  19   7   1   0   6   1  16   5   3  12  20   4   0   9   7  57
 12 |  2   7   2  12   0   6   0  18  21   1  46  10   4  14  22  26   6
 13 |  3  27  13   1   4   5   1  51  15  19  94  22   2   1  25  25  22
 14 |  5   8   4   4   5   5   6  28   7  53  30   9   5  10  17  10  24
 15 | 30  17   0   7  15   4   1  34  34  23   2  10   5   9  58   6  22
 16 | 41   9  10   6  18  16  12  53  21   6  15  38   5  12  21  39  35
 17 | 53  33   3   6  10  21   5  56  78  22  13  30  14  44  17  36  37
 18 |125  18   4  26  10  23   5  57  59  26  39  16  33  55  38  63  28
 19 | 49  21   7  16   4   8  15  48  77  40  29  31  17  12  21  32  35
 20 | 40  63   5   8  11  16   2  78  75  12  13  35  13  32  50  59  38
 21 | 36  27   7  11   7   2   3 103  50  10  26  47  18  61  26  89  60
 22 | 22   9   3   5   5   2   4  90  25  11  15  83  22  63  42  48  34
 23 |  2   7   3   8   0  10   4  14  25  10  13  59  11  22  34  11  24
 ---+-------------------------------------------------------------------
 UT | 14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |  April 2002

Note:
To: pierre.terrier@free.fr

Hello Pierre,

I want to inform you that a new meteor observing station is up and running and
recording data. It is in Samobor, a small historical town 20 km from Zagreb,
the capital of Croatia.
My installation is the same as you describe on your web site, and your web
site
was my inspiration to get involved in meteor observing by radio. After half a
year of studying principles and equipment, I decided to join RMOB.


      Robert Obraz

---------------------------------------------------------------------------
Observer:      Sadao Okamoto
Location:      Damine Meteor Observatory, Japan (137.53 E, 35.07 N)
Transmitter:   HAM beacon (JA9YDB) for RMO  (50 W CW, 53.7500 MHz) by
               JA9BOH Kimio Maegawa. No modulation except for identification.
    Antenna:   2 element Cross Yagi 4 dBi aiming to Zenith. Omni-directional
               in azimuth and elevation above 15 deg elevation.
   Location:   Fukui-NCT at Sabae city (136.2 E, 35.9 N)
               At present time about 10 observers are listing for
               Kimio Maegawa's 53.75 MHz beacon.
Receiver:      IC575
Antenna :      2 element HB9CV, pointed to the zenith
Observing method: HROFFT and HROview software, manual count.

                   Hourly echoes over 10 dB SNR
2002
Apr|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
Apr|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
---+--------------------------------------------------------------------------
 1 |33 30 32 36 37 45 45 26 41 35 29 26 17@28@25 14 14 13 11  9 13 23@40 IF
 2 @42 33 45 62 31 49 42 50@39 IF IF 18 12 30 27 10  7 14 12 12 13 86 38 31
 3 |43 31 41 43 37 36 41 49 43@35 28 15 27 21 12  9 13  8  5  8 15 18 24 40
 4 |38 46 30 26 39 43 37 19 26@19 10 12  7 11 18  6 @5 @4  7  9 11 20 25 46
 5 |23 28 40 34 31 29 34 46@30 IF 15 12 14@12 15  4  5  6  3  6 12 26 19 29
 6 |24 39 33 44 30 35 36 35 36 34 28 24 18 18 18 12  7  7 12  9 12 32 24 33
 7 |34 30 38 42 41 44 57 68 46 30 26 25 34 30 26 16 11 10 11  5 16 33 36 48
 8 |45 43 61 50 36 50 64 56 46 33 25 18 23 17 18 12  8  9 16  9 14 27 21 30
 9 |34 36 44 41 44 45 36 44 51 25 35 39 35 25 17 13  9  7  4 10 15 18@15 IF
10 |IF 33 41 38 40 49 48 52 50 23 31 25 28 22 24 19  9  9 13 11 15 36 40 36
11 |40 43 52 49 61 39 36 54 51 36 14 23 19 27 20 15  6  6  5  7 13 27 38 37
12 |40 50 54 48 42 52 50 62 40 50 31 38 37 23 21 16 14 11  8  6 17 23 21 29
13 |35 36 39 41 36 46 42 57@31 41 27 29 23 31 18 17 13 10  9 10 14 20 26 29
14 |29 37 37 38 34 40 39 32 46 38@20 IF IF IF IF IF IF @4  8 10 23 20 23 25
15 |27 36 39 47 44 41 60 42@47 18@20 IF IF 17 17  7  6  8 12  7 17 21 IF IF
16 @36 50 58 47 44 57 57 51 62 60 28 21 25 23 14 15 17 12 15 11 21 33 30 40
17 |IF 54 56 56 61 67 55 72 60 46 30 48 48 20 31 27 15 11 10 13 24 29 IF 37
18 |41@32 44 60 42 46 51 67 50 IF 37 36@20 IF 23 11 @6  3 14  8 17 24 38 38
19 @28 42 48 42 50 49 51 59 42 42 29 29 33 27 17 19 @2 ES@10 41 11 33 30 37
20 |40 51 60 50 50 66 65 68@73 46 44 32 47 54@26 21 ES@18 14  9 12 33 32 60
21 |43 73 69 60 62 78 69 61 56@48

28 |                                    43 38 39 26 15 17 13 14@23 28 36 40
29 |59 44 59 37 65 67 56 77 62 54 31 37 46 39@28 IF 12 15 16@15 17@32 41 61
30 @37 55 68 54 73 87104 83 58 41 44 43 60 34 39 25 14 20 13 20 20 31 47 36
---+--------------------------------------------------------------------------
Apr|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
Apr|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
2002

                   Echoes with duration > 20 s
2002
Apr|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
Apr|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
---+--------------------------------------------------------------------------
 5 |                      1
 6 |                1

10 |                   1
11 |
12 |                               1  1

15 |                   1

18 |                      1
19 | 1
20 |                         1                                         1
21 |                   1

29 |          1
30 | 1           2  2  1
---+--------------------------------------------------------------------------
Apr|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
Apr|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
2002

Notes:
  -: lost counts because of high noise level or machine failure.
  @: Hourly rate estimated by effective observation time less than 60 min.
  n: Contamination due to radio noise or interference
 IF: Contamination due to radio noise or interference
 ES: Contamination due to sporadic E opening
  f: No data available due to TX or RX failure
  LT = JST = UT + 9 h
  .  PC powered off between April 21 and 28
  .   eta Aquarids activity starting at the end of the month.


      Sadao Okamoto

---------------------------------------------------------------------------
Observer:    Robert Savard
Location:    Sherbrooke Quebec Canada (45d 25' N, 71 d 55' W)
Frequencies: 88.3 MHz
Antenna :    HB9CV beam 260 deg az elevated 20 deg above horizon
Pre-amplifier:
Receiver:    Car radio Blaupunkt SQR28
Observing method: software Meteor Version 6.0


    |  April 2002
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h|  ?  12  12   8  18  13   4  11  12  12  17  21  16  17  17
  1 |  9  10  13  12  16  17  10   9   5   8  12  22  18  17   8
  2 |  7  11  12  13  11  13   8  12  16  12  16  15  13  21  18
  3 |  1   7   8  10  21  16  18  15  17  16  13  28  14  20  14
  4 | 11  15  18  18  15  19  19  16  18  13  21  19  22  21  16
  5 | 11  13  10  16  14  24  14  18  18  21  20  17  25  31  23
  6 | 13  14   6  14  17  20  25  16  23  21  28  26  18  18  15
  7 | 14   8  13  23  20  14  19  20  12  28  24  21  15  25  19
  8 | 14  17   9  22  16  12  19  18  20  14  26  17  19  17  17
  9 | 13  10   9  17  27  22  16  17  18  20  12  19  17  29  28
 10 |  7   9  11  20  18  21  10  20  15  19  21  21  18  20  19
 11 |  7  16  16  16  25  17  22  20  32  16  16  14  26  25  26
 12 | 12  13  17  17  17  12  23  24  24  25  16  28  20      27
 13 | 15  18  16  19  14  13  32  16  23  25  30  22  26  28  27
 14 | 24  14  20  21  32  20  18  22  20  26  27      26  23  34
 15 |  8   9  19  14  11  12  16  26  14  25  35      24  28  33
 16 | 15   6  14  10  16  26  13  20  26  16  27      14  22  22
 17 |  9   7  15  15  16  19  10   9  20  13  31      35  28  17
 18 | 19   8  14  13  13  31  14  14  16  18  19  25  12  15  21
 19 | 16   6   9  24  18   9  14  12   6  22  16  27  13  14  16
 20 | 14  13   3  14   4  17  12   9  11  12  14  23   6  14  11
 21 | 11   9   9  15  14   9  13   8   8   8  14  22  13  13   9
 22 |  6   8   9  14  14  16  12   8   5  13  13  12  10   7  18
 23 |  8  13  12  15   9  15  17   7   6  12  10  13  13  24  25
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |  April 2002

    |  April 2002
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-----------------------------------------------------------
  0h| 20  24  23  26  36  27  13  12  34  15  27   6  20  12   6
  1 |  5  16  21      32  15  16  14  18  13  16   5  19  15  11
  2 | 19  26      32  27  11  18  18  19  21  24  15  15  14  12
  3 | 17  23      23      23  21  30  25  22  31  25  19  15  22
  4 | 17  22      26      19  37  27  21  24  21  26  19  21  17
  5 | 21  34      32      27  31  25  31  28  20  23  27  16  23
  6 | 22  40  33  46      25  33  25  23  18  26  25  27  16  28
  7 | 24  42  32  25      28  40  21  20  21  32  16  18  19  29
  8 | 15  31  29  42  22  39  44  31  21  20  25  24  19  18  33
  9 | 23  13  19  21  29  41  23  20  23  25  26  29  21  23  34
 10 | 20  29      24  22  28  24  28  23  31  20  35  23  30  25
 11 | 32          28  30  26  27  28  15  22  25  21  38  25  36
 12 |             43  33  26  44  23  28  38  34  29  28  32  38
 13 |             18  39  37  24  42  21  23  22      32  32  38
 14 |             24  47  27  31  19  32  32  19      28  44  36
 15 |                 38  42  25  33  18  43  30      29  29  39
 16 | 24              24  22  19  27  24  28          22  22  19
 17 | 15      25      32  31  19  17  13  36          17
 18 | 13  19  15  22  25  19  14  10  25  11      28  27  15
 19 | 12  13  23  23  13  26   8  14  16  15  20  29  20   9
 20 | 19  10  14  20  24   6  16   9  10  10  28      11  10
 21 |     10  15  29  17  11  12   7  17  14   9  24   4  10
 22 | 17   7  10      23  12  12  10  10  12  17  16  11  13
 23 | 13  27  18  40  31  25  10  20  13  14  12  18  10   7
 ---+-----------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |  April 2002


      Robert Savard

---------------------------------------------------------------------------
Observer:    Dave Swan
Location:    Christchurch UK (50.47 N 1.44 W)
Receiver:    Pro 2006 (modified to give a carrier detected
             output for Chessell  301 pen recorder).
             Detected signal level > -123 dBm
Antenna:     5 element Yagi Gain 7.5 dBd.
             Azimuth 210 deg elevation 10 deg.
             Antenna relocated and RG 213 low loss cable installed on
             July 28, 2001, 09h00.
             This removed a -2 dB loss from the antenna and feeder system.
Frequency:   55.25 MHz
Transmitter: TV channel E3 (video) Portugal; transmitter Lousa;
             distance ~ 1250 km
Computer:    AST 486 Notebook with Meteor v 5.0 software


    |   April 2002
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h| 45  56  57  49  50  55  64  51  58  62  60  61  54  61  56
  1 | 57  67  58  62  50  58  69  65  60  49  43  65  58  58  60
  2 | 85  26  67  54  72 103  73  66  35  61  83  68  73  68  71
  3 | 69  15  80  87  79  79  83  73  26  65  75  75  82  56  53
  4 | 67  27  66  83  69  81  75  67  21  58  73  76  82  63  56
  5 | 72  52  62  74  60  82  76  64  53  68  82  81  80  64  72
  6 | 77  67  63  58  71  63  76  69  63  73  50  77  76  59  73
  7 | 85  82  88  92  66  81  87  84  87  90  87 105  96  77 115
  8 | 98  79 103 104 106  90 115  96 124 102 100  94 107  99 131
  9 | 85  77  65  95 105 119 116 135 119 109 123 112 134 113 161
 10 | 80 118  79 105  96 119 112  98  95 104 114 119  95  77 107
 11 | 89  89  55  74  91 124 104  75 110  78  96  95 109  91 112
 12 | 86  81  40  93  89 108  93  80 111  59 108  92  64  85 106
 13 | 89  91  37  81  82  87  84  82 101  77 104  84  80  92 100
 14 | 70  55  35  71  79  82  60  76  76  71  80  78  77  81  99
 15 | 52  61  26  53  64  62  37  52  55  60  61  60  43  65  74
 16 | 47  45  36  56  37  28  29  45  31  30  39  36  28  34  42
 17 | 34  26  18  27  26  22  23  24  17  18  30  28  20  17  30
 18 | 19  20  13  26  19  17  15  17  11  22  26  24  27  20  25
 19 | 17   9  13  24  32  27  23  17  27  20  31  26  18  14  27
 20 | 28  21  24  22  22  25  22  14  24  22  32  22  27  27  20
 21 | 39  43  34  30  43  35  41  28  24  18  41  34  49  39  14
 22 | 33  44  51  45  39  50  35  50  44  46  58  41  38  54  24
 23 | 40  39  50  31  40  56  54  45  62  44  51  50  50  68  16
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   April 2002

    |   April 2002
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-----------------------------------------------------------
  0h| 34  52  41  47  50  46  76  96  56  44  40  26  66  38  48
  1 | 27  54  44  64  47  69 100 121  73  60  40  30  69  56  68
  2 | 31  92  50  68  70  87  85  96  74  48  42  42  70  41  63
  3 | 36  83  50  72  68  68  83 103  91  67  57  48  90  69  66
  4 | 30  60  52  70  82  58 101  89  88  77  61  50  87  67 102
  5 | 49  87  55  66  97  73  96  66  79  85  72  62  89  79 109
  6 | 67  83  82  71  79  81 103 111  83  81  86  67 137 108 110
  7 | 92 111  97 120  87 100 139 128 112 134 137  73 115 129 127
  8 |130  68 107 144  91 107 142 155 147 130 134  65 103 170 118
  9 |119  22 102 151 101 130 141 127 137 119 146  54 119 128 121
 10 |111  35 100 122 117  88 132 143 124 119  82  41  91  96 129
 11 | 93  33 117 106 109  67  94 122  89 105  87  45  97  92 100
 12 | 88  31  96  91  98 107  91 112  94  95 110  72  91 103 103
 13 | 82  56 108  81  97  79  65 114 110 114  94  99 104 117 112
 14 | 83  72  78  79  65  68  87  90 115  96  83  80  91  94  90
 15 | 60  67  65  59  65  52  60  72  75  74  70  52  76  70  77
 16 | 40  42  43  31  30  21  41  39  51  45  56  22  43  40  29
 17 | 28  30  21  28  25  14  19  36  25  16  24  22  28  27  28
 18 | 21  30  19  20  18  20  17  19  14  23  15  15  14  15  27
 19 | 14  15  23  15   9  18  36  17  21  13  12  26  16  21  23
 20 | 25  27  33 104  18  32  20  27  28  20  17  36  28  27  34
 21 | 42  35  30  44  32  32  35  31  25  18  13  44  27  40  33
 22 | 39  25  45  38  41  44  56  42  27  25  21  38  40  38  42
 23 | 36  31  52  62  35  49  86  53  40  42  29  70  56  28  45
 ---+-----------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |   April 2002

Notes:
 ?  probably affected by Es.
    When no figure is shown, the equipment was out of service.


      Dave Swan

---------------------------------------------------------------------------
Observer:    Pierre Terrier
Location:    Canet, France  (3 36'E, 43 41' N)
Frequencies: 93.7 MHz
Antenna:     6-element Yagi FM, horizontal polar.
             azimuth 0 deg (N-S), elevation 90 deg. (zenith)
Pre-amplifier: home made, gain 15 dB, Nf < 2 dB
Receiver:    Tuner FM Continental Edison digital synthesiser TU 9945
Observing method: Electronic interface on LINE output audio signal are fed in
             COM1: of  PC Pentium 75 MHz.
             WMeteor v 1.0 (Windows) processes the signal and records on
             hard disk the time of the events.
             WMeteor parameters: THRESHOLD = 14
             COLORGRAMME v 2.2 working with WMeteor to display the visual
             graphic data per hour and generates RMOB bulletin automatically.


    |   April 2002
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h| 27  39                  38  54  82  43  30  34  34  29  33
  1 | 24  33                  56  39  60  43  55  38  40  35  43
  2 | 27  30                  49  62  46  42  42  45  41  33  35
  3 | 21  35                  44  47  41  33  36  36  32  17  31
  4 | 25  36                  48  57  50  30  44  36  36  34  40
  5 | 25  28                  71  56  58  42  42  41  52  45  60
  6 | 31  47               3  76  57  51  41  42  36  39  36  35
  7 | 30  56              51  90  51  69  44  38  54  38  47  55
  8 | 33  58              42  52  45  41  41  49  39  41  55  60
  9 | 23  57  38          74  80  58  55  50  44  49  39  46  54
 10 | 42  69  73          45  91  50  28  49  45  38  42  46  49
 11 | 23  33  50          41  70  43  39  46  41  46  49  38  30
 12 | 33  52  57          47  38  66  36  40  41  57  28  45  38
 13 | 31  48  63          33  51  36  37  27  35  39  38  46  44
 14 | 17  64  51          16  38  46  50  33  27  36  38  45  49
 15 | 34  45  82          25  24  55  32  36  27  40  33  39  25
 16 | 31  52  99          14  23  27  19  13  29      37  21  23
 17 | 27  48  87          24  22  21  19  26  14      37  25  25
 18 | 23  56  73          16  27  36  30  19  28      13  30  20
 19 | 23  59  62          31  24  29  20  21  27      21  19  26
 20 | 17      63          27  25  67  38  23  20  19  17  11  27
 21 | 10      85          36  26  82  24  22  20  22  31  29  30
 22 | 20      80          26  39 100  38  30  35  32  26  28  32
 23 | 21      97          40  45  94  33  33  26  26  39  36  36
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   April 2002

    |   April 2002
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
 ---+-----------------------------------------------------------
  0h| 31  37  36  29  36  45  43  55  47  41  38      28  34  31
  1 | 52  38  36  38  47  52  46  52  52  30  35      37  30  21
  2 | 42  36  37  42  46  40  48  53  36  32  37      36  38  38
  3 | 38  40  38  36  36  52  45  44  40  29  31      46  39  38
  4 | 39  26  31  29  42  40  43  48  42  45  35      32  41  45
  5 | 47  40  30  41  30  59  44  55  47  44  43      38  60  55
  6 | 42  52  37  47  42  43  68  38  57  47  42      48  59  52
  7 | 65  40  40  45  42  50  51  54  65  59  59      52  46  74
  8 | 49  35  32  50  57  29  78  45  54  51  47      56  46  52
  9 | 46   8  38  53  55  52  58  52  55  51  48      51  50  69
 10 | 49  10  66  43  47  40  65  47  52  41  49      34  51  61
 11 | 42  19  41  49  45  46  44  56  43  49  41      41  47  38
 12 | 35  34  30  55  38  49  43  41  41  50  54      33  40  39
 13 | 35  26  40  35  40  31  33  35  41  34  31  19  34  36  50
 14 | 36  22  41  40  27  42  43  40  42  37  31  31  28  22  31
 15 | 28  26  44  31  20  24  30  33  35  17  36  18  19  37  39
 16 | 16  17  28  34  18  32  19  21  11  19  35  17  25  22  34
 17 | 15  14  29  22  15  23  17  11  15  20  17  15  30  26  28
 18 | 12  19  19  25  16  33  12  14  21  17  24  18  17  13  14
 19 | 20  28  26  23  17  15  26  19  22  24  23  20  13  32  25
 20 | 23  13  18  35  12  27  22  24  23  22  15  14  28  20  16
 21 | 20  18  25  20  25  19  14  24  34  19  15  24  24  27  21
 22 | 23  28  24  34  35  40  36  20  15  36  24  19  25  37  25
 23 | 23  27  27  37  34  31  51  30  30  40  24  24  38  37  37
 ---+-----------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
    |   April 2002

Note:
. data are not corrected for Sporadic E.


      Pierre Terrier

---------------------------------------------------------------------------
Observer:    Garfield Tsao (BM2EQB)
Location:    LonTan Observatory
             LonTan, TauYan, Taiwan R.O.C. (121 14'37" E, 24 52'54" N by GPS)
Frequency:   50.0169 MHz USB mode 3 kHz width.
Antenna:     Comet made 50 MHz Yagi HB 4 element (gain 10.3 dBi)
             astronomical azimuth 225 deg (=NE), elevation 7 deg.
Transmitter: MIYAZAKI University Japan, USB mode, 50 W (24 hours),
             distance about 1125 km from Lon Tan.
Receiver:    Icom R-75  all band receiver
Sensitivity: 0.25 uV for 10 dB S/N  for USB mode
Observing method: the beacon 1000 Hz voice signal (by FFTDSP) is
             received by a low frequency filter (1000 Hz) and fed into
             the D/A converter and computer in real time.
Data sampling system: using an 8 bits A/D card to PC/AT and Qbasic program
             with 1/8 second sampling interval to store the> 1.0 s
reflections.


2002|08h09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06
07 LT
Apr |00h01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
23 UT
----+-----------------------------------------------------------------------
---
 6  | -  -  -  5  4  4  5  3  6  4  4  6  5 11 12 18 15 25 18 25 29 39 24 25
 7  |30 11  9  8  8  7  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -

13  | -  -  -  -  -  -  -  6  8  6  4  9  7 10  6 17 23 23 43 24 20 22 21 29
14  | 9 17  8 10  9  8  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -

20  | -  -  -  -  -  E  E  E  7  5  6 11  8 11 12 16  9  8 10  9 15 12 21 30
21  |26 12 15  E  E  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -

27  | -  -  -  -  3  7  3  6 11  8 10  6  7  7  5  6  8  3  5  8 11  8  6 16
28  |22 24 13  8 11  8  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
----+-----------------------------------------------------------------------
---
Apr |00h01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
23 UT
2002|08h09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06
07 LT

Notes:
.  "In" (local) artificial interference.
.  "Es" = sporadic E layer mode of reflection.
*  local time = UT + 8 h


       Garfield Tsao

---------------------------------------------------------------------------
Observer:  Ilkka Yrjölä
Location:  Finland  (26 35' E, 60 54' N)
Frequency: 88.7 + 107.9 MHz
Receiver:  Modified car radios, narrow band FM (B=15 kHz)
           detected signal level >-131 dBm.
           FM squelch detection, no pulse noise rejection required.
Antennas:  two 3-el. Yagis, G=4 dBd to SW, azimuth 45 deg (SW), polarisation H
Data sampling system: squelch threshold triggering, sampling rate 32 ms.
            Computer logs total reflection time, number of events in 10 minute
            periods for each receiver.

            Data on major showers available in the Compact MS-Soft format.
            New versions and revised documents available, please replace
            old MS-Soft versions.
            * Documents for MS-Soft 5.1. Zipped ~2.5 MB
            * MS-Soft v5.1 for Ham Radio MS, VGA only. Zipped ~0.4 MB
            * MS-Soft v4.4 runs on EGA/CGA/Text. Zipped ~0.45 MB
            * VM-Soft v4.4 for visual meteor work. Zipped ~0.37 MB

		  Lyrids 2002

    UT  | 21 Apr   22 Apr  23 Apr  24 Apr
    ----+--------------------------------
     0h |    338     436              313
     1  |    335     467      286     353
     2  |    295     526      344     339
     3  |    277     511      350     294
     4  |    281     488              374
     5  |    338     611              368
     6  |    353     614              357
     7  |    419     630              367
     8  |    365     527      384     399
     9  |    283     406      394     360
    10  |    310     385      275     317
    11  |    260     370      326     299
    12  |    250     290      254     298
    13  |    222     222      253     250
    14  |    230     269      208     253
    15  |    210     195      223     211
    16  |    191     201      240     253
    17  |    216     226      171     184
    18  |    182     282      201     245
    19  |    226     309      233     214
    20  |    260     294      234     240
    21  |    344     350      281     326
    22  |    360     375      256     306
    23  |    402     365      272     353
    ----+--------------------------------
    UT  | 21 Apr   22 Apr  23 Apr  24 Apr

Note:
 . Aurora on April 23


      Ilkka Yrjölä


2. ABOUT THE RMOB

The RMOB is an independent initiative of some workers in the field of radio
meteor scatter observations and data reduction. It started in August 1993 in
order to spread the Perseid results via E-mail. Since then, it has appeared
monthly, and it has gradually been expanded. In regularly publishing
summaries of observations, potential radio observers are kept up to date of
existing installations, possibilities and limitations of radio meteor
observations. In the long run, there should be sufficient observing stations
to cover the whole globe, allowing to detect stream outbursts which may
remain unnoticed visually.

RMOB contains typically: summaries of previous month's observations,
equipment data, first results of stream activity by radio methods,
relations between radio and optical meteors, references to other publications
in the field of meteor astronomy and radio scatter techniques, announcements
of meetings, short questions and answers, links to interesting web sites.

Contributors are mentioned, and interested persons are asked to contact them
directly.

RMOB can be copied freely in unabridged and unmodified form. Extracts should
indicate the source (Radio Meteor Obs Bulletin, month and year).

If you want to subscribe (or un-subscribe) to the E-mail distribution list,
please send a message to C. Steyaert.


3. CONTRIBUTORS / USEFUL ADDRESSES

Enric Fraile Algeciras (EA3BTZ)
C/ Moianes 19-21 Esc. A  6º 1ª, E Barcelona
mailto:Ea3btz@retemail.es
http://personal3.iddeo.es/ea3btz (in Spanish)

Michael Boschat
Royal Astronomical Society of Canada - Halifax Center
6391 Liverpool St., Apt.1, Halifax, Nova Scotia, Canada  B3L 1Y1
mailto:aa063@chebucto.ns.ca
http://www.atm.dal.ca/~boschat

Jeff Brower
Loveland, Colorado, USA
mailto:NK0L@amsat.org

Maurice De Meyere (ON4NU)
Hullekensstraat 24, B-9831 Deurle, Belgium
mailto:maurice-demeyere@tiscalinet.be

Minoru Ehara
Saitama, Japan
mailto:BZQ17520@nifty.ne.jp

Ghent University, Astronomical Observatory
Krijgslaan 281(S9), B-9000 Gent, Belgium
mailto:Pierre.DeGroote@rug.ac.be, mailto:paul_vauterin@applied-maths.com

Patrice Guérin
La Chapelle, 79140 Le Pin, France
mailto:astro03947@wanadoo.fr

Alastair McBeath
IMO: International Meteor Organization
12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K.
mailto:vice_president@imo.net

Toshihide Miyake
Okayama, Japan
mailto:to-miyake@mx31.tiki.ne.jp

Stan Nelson, KB5VL
Roswell, NM 88201, USA
mailto:sanelson@starband.net

Robert Obraz
Samobor, Croatia
mailto:deepsky@hotpop.com
http://free-zg.hinet.hr/seti
     (in Croatian only, English pages under construction)

Hiroshi Ogawa
University of Tsukuba, Japan
mailto:HZH02257@nifty.ne.jp
Radio Meteor Obs. http://homepage2.nifty.com/~baron/

Sadao Okamoto
mailto:okamoto@jim.sugiyama-u.ac.jp

Robert Savard
Sherbrooke Quebec Canada
mailto:rs@sympatico.ca
http://www.r-savard.ca   (in French only)

Chris Steyaert, VVS
Kruisven 66, B-2400 Mol, Belgium
mailto:steyaert@vvs.be

Dave Swan
Christchurch, UK
mailto:daveswan@dorsetpubs.com
http://www.radiodesignservices.co.uk

Pierre Terrier
Canet (close to Montpellier), France
mailto:pierre.terrier@free.fr
http://members.tripod.com/~astro_electronic/index.html
Meteor & Colorgramme web site: http://page.to/meteor/
Visual RMOB web site         : http://visualrmob.free.fr/
Meteor mailing list: mailto:meteor-request@ml.free.fr?subject=subscribe

Garfield Tsao (BM2EQB)
LonTan Observatory, LonTan, TauYan, Taiwan
mailto:tsao5916@ms4.accmail.com.tw
http://www.geocities.com/Eureka/Office/1528 (in Chinese)

Ilkka Yrjola
Kuusankoski, Finland
http://www.sci.fi/~oh5iy
Ham Call: OH5IY

--
Christian Steyaert                (RMOB0204)                9 May 2002
--

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