Results of the AKM Video Meteor Network - July 2001
===================================================
Eleven video systems in operation - that's more than ever in the history of
the AKM video meteor network. July started promising for the German observers.
At the beginning of the month there was a stable high pressure system that
presented us a number of clear nights. The end of the month saw an increase
in meteor activity and many cameras were in operation, whereas in the middle
of July we had poor weather for two weeks.
After the image intensifier of his own camera ADAM broke down early last year,
Ulrich Sperberg had to quit video meteor observations for a while. Now he
operates AKM1 at his observing site in Salzwedel, one of the two new AKM
cameras. The other camera was operated by me in parallel to my own camera
AVIS from Aachen. It recorded about 400 meteors - that's alone more than
five observers contributed in all of July 2000! Starting from August AKM2 will
be operated by Juergen Rendtel. Among the German observers he collects most
observing hours. However, since the intensifier tube of his camera CARMEN has
become quite weak, he recorded fewer meteors that other observers in the past.
Whereas nights are getting shorter now for Rob McNaught, it's the start of
high season for the European observers. Meteor activity increased mainly thanks
to the early Perseid activity as well as the Aquarid and Capricornid radiant
complex. Contrary to the European sites, these showers culminate almost at the
zenith down under. For this reason Rob recorded in one night for the first
time more shower meteors (SDA) than sporadics.
In summary the video meteor database has improved largely thanks to July 2001,
as in the last two years only a few meteors could be secured at that time
of year due to bad skies.
1. Observers
============
Code Name Place Camera FOV LM Nights Time Meteors
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BENOR Benitez S. Maspalomas TIMES4 (1.4/50) 20 dg 8 mag 6 47.7 h 368
EVAST Evans Little Thurlow EMILY (1.8/28) 36 dg 5 mag 4 11.9 h 48
KNOAN Knoefel Duesseldorf VIDEOMET (0.75/50) 20 dg 7 mag 2 8.1 h 24
KOSDE Koschny Noordwijkerhout ICC4 (0.85/25) 25 dg 6 mag 4 14.7 h 27
MCNRO McNaught Coonabarabran SSO1 (1.2/85) 13 dg 9 mag 20 204.6 h 3032
MOLSI Molau Aachen AVIS (2.0/35) 40 dg 5 mag 18 68.2 h 407
AKM2 (0.85/25) 32 dg 6 mag 14 55.4 h 387
NITMI Nitschke Dresden VK1 (0.75/50) 20 dg 8 mag 2 3.3 h 23
RENJU Rendtel Marquardt CARMEN (1.8/28) 28 dg 5 mag 6 18.6 h 70
SPEUL Sperberg Salzwedel AKM1 (0.85/25) 32 dg 6 mag 5 17.6 h 146
STRJO Strunk Leopoldshoehe FAMOS (2.0/28) 45 dg 5 mag 13 47.4 h 138
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Overall 29 497.5 h 4708
2. Observing Times (h)
======================
July 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
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BENOR - - - - - - - - - - - - - - -
EVAST - - - - - - - - - 2.7 - 3.0 - - -
KNOAN - 3.2 - - - - - - - - - - - - -
KOSDE - 0.2 - 4.5 - - - - - - - - - - -
MCNRO 10.7 11.3 9.3 10.9 - - - - 8.3 10.6 - 11.1 8.6 8.6 10.6
MOLSI 4.1 4.5 4.8 4.6 - 3.2 - - 2.8 - 4.5 - 3.2 - -
3.8 4.6 4.7 4.5 - - - - 2.6 - 4.5 - - - -
NITMI - - - - - - - - - - - - - - -
RENJU - - - - - - - - - - - - - - -
SPEUL - - - - - - - - - - - - - - -
STRJO 3.8 2.1 3.7 4.0 4.0 - 1.6 - - - - - - - -
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Sum 22.4 25.9 22.5 28.5 4.0 3.2 1.6 - 13.7 13.3 9.0 14.1 11.8 8.6 10.6
July 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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BENOR - - - - - - - - - - 7.6 7.8 8.0 8.2 7.9 8.2
EVAST - - - - - - - - - 3.1 - 3.1 - - - -
KNOAN - - - - - - - - - - - - - 4.9 - -
KOSDE 5.0 - - - - - - - - - - - - - 5.0 -
MCNRO 11.2 9.6 - 11.2 10.9 9.9 11.2 - - - - - 10.9 10.3 8.8 10.6
MOLSI - - - - 3.4 3.6 - - 4.1 5.1 4.6 3.0 4.4 5.3 0.7 2.3
- - - - - - - - 4.0 5.1 5.1 3.3 4.5 5.3 1.0 2.4
NITMI - - - - - - 2.1 - - - - 1.2 - - - -
RENJU - 3.0 2.5 - - 2.5 - - 3.4 2.8 4.4 - - - - -
SPEUL - - - - - - - - - 3.1 3.7 3.6 - 3.7 - 3.5
STRJO - 2.5 - - - - - - 4.0 4.9 5.1 5.0 1.3 5.4 - -
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Sum 16.2 15.1 2.5 11.2 14.3 16.0 13.3 - 15.5 24.1 30.5 27.0 29.1 43.1 23.4 27.0
3. Results (Meteors)
====================
July 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
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BENOR - - - - - - - - - - - - - - -
EVAST - - - - - - - - - 4 - 12 - - -
KNOAN - 7 - - - - - - - - - - - - -
KOSDE - 1 - 8 - - - - - - - - - - -
MCNRO 165 83 94 27 - - - - 17 68 - 113 100 177 121
MOLSI 18 20 24 18 - 10 - - 7 - 31 - 18 - -
24 30 22 23 - - - - 9 - 33 - - - -
NITMI - - - - - - - - - - - - - - -
RENJU - - - - - - - - - - - - - - -
SPEUL - - - - - - - - - - - - - - -
STRJO 7 9 10 2 3 - 1 - - - - - - - -
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Sum 214 150 150 78 3 10 1 - 33 72 64 125 118 177 121
July 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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BENOR - - - - - - - - - - 56 70 70 81 85 36
EVAST - - - - - - - - - 13 - 18 - - - -
KNOAN - - - - - - - - - - - - - 18 - -
KOSDE 9 - - - - - - - - - - - - - - -
MCNRO 197 169 - 293 212 201 210 - - - - - 214 193 241 137
MOLSI - - - - 18 20 - - 28 37 35 26 18 51 7 21
- - - - - - - - 23 37 31 31 26 58 12 28
NITMI - - - - - - 19 - - - - 4 - - - -
RENJU - 12 9 - - 5 - - 16 17 19 - - - - -
SPEUL - - - - - - - - - 21 19 43 - 44 - 19
STRJO - 6 - - - - - - 20 18 19 18 3 22 - -
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Sum 206 187 9 293 230 226 229 - 87 143 179 210 331 467 354 241
Sirko Molau, 2001/08/19