Results of the IMO Video Meteor Network - May 2007
==================================================
May 2007 could not compete with the record-breaking month before. In a sense,
reality came back to the camera network with "only" well above 750 observing
hours and almost 2000 meteors. There were just two observers who managed to
observe in 20 or more nights, and after 512 observing nights in a row,
May 28/29 was the first night where we could not observe any meteor at all.
Reasons for this were the weather on the one hand (the satellite picture shows
that all of central Europe was covered by a thick cloud blanket), and a number
of inactive cameras on the other hand. Two of the most active cameras (SRAKA
by Mihaela Triglav and REZIKA by Javor Kac) had to pause because of
configuration problems and observing site reconstuction, respectively, and
for Ilkka Yrjola the "summer break" started due to the high solar altitude.
On the other hand, Mirko Nitschke finished the maintenance of AKM2 such that
Wolfgang Hinz could resume the observation. AKM2 now employes a new video
camera with a better projection lens, which significantly improved the image
quality (as to be seen in two images from March 18 and May 20).
In the last few weeks I found the time to work intensively on the meteor
detection software again. One weakness of MetRec was, that there was no easy
way to recognize possible activity of minor showers. If at all, these were only
detected during data analysis many month later, or when other observers pointed
us to unusual activity (which has happened several times in the past).
For this reason, I implemented a simple function, that computes and displays
backward tracings during (MetRec) and after (PostProc) the observation. Now
an observer finds out easily, if there is an active meteor shower (many
backward tracings intersect at one point). The example shown here comes from
MINTRON1 on May 6/7, when beside a number of sporadic meteors also a few
shower members (eta-Aquariids) could be observed in the morning hours.
After further testing, this functionality will be made available to all
observers with the next MetRec release.
1. Observers
============
Code Name Place Camera FOV LM Nights Time Meteors
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BENOR Benitez.S. Las Palmas TIMES4 (1.4/50) 20 dg 3 mag 8 13.3 h 25
TIMES5 (0.95/50) 10 dg 3 mag 5 5.0 h 8
BRIBE Brinkmann Herne HERMINE (0.8/6) 55 dg 3 mag 19 45.9 h 83
CASFL Castellani Monte Baldo BMH1 (0.8/6) 55 dg 3 mag 11 49.9 h 73
EVAST Evans Moreton RF1 (0.8/12) 25 dg 5 mag 8 34.2 h 61
HINWO Hinz Brannenburg AKM2 (0.85/25) 32 dg 6 mag 7 29.9 h 85
KACJA Kac Kostanjevec METKA (0.8/8) 42 dg 2 mag 10 47.1 h 28
LUNRO Lunsford Chula Vista BOCAM (1.4/50) 60 dg 6 mag 6 34.3 h 143
MOLSI Molau Seysdorf AVIS2 (1.4/50) 60 dg 6 mag 14 62.2 h 485
MINCAM1 (0.8/6) 55 dg 3 mag 21 91.8 h 202
Ketzuer REMO1 (0.8/3.8) 80 dg 3 mag 24 89.2 h 142
ROBBI Roberto Verona FIAMENE (0.8/3.8) 80 dg 3 mag 20 83.5 h 115
SLAST Slavec Ljubljana KAYAK1 (1.8/28) 50 dg 4 mag 5 23.3 h 38
STOEN Stomeo Scorze MIN38 (0.8/3.8) 80 dg 3 mag 9 45.2 h 103
STRJO Strunk Herford MINCAM2 (0.8/6) 55 dg 3 mag 17 23.2 h 55
MINCAM3 (0.8/8) 42 dg 4 mag 9 22.0 h 43
MINCAM5 (0.8/6) 55 dg 3 mag 12 29.5 h 76
TRIMI Triglav Velenje SRAKA (0.8/6) 55 dg 3 mag 10 20.6 h 48
YRJIL Yrjola Kuusankoski FINEXCAM (0.8/6) 55 dg 3 mag 11 17.5 h 39
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Sum 30 768.0 h 1852
2. Observing Times (h)
======================
May 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
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BENOR - - - - - - - - 1.0 2.3 1.2 0.8 - - -
- - - - - - - - - 2.0 0.5 1.0 - - -
BRIBE 4.0 2.7 4.5 1.0 5.0 - - - - - - 1.0 1.5 - 6.7
CASFL - - - - - - 5.3 - 2.2 4.7 4.0 - - - -
EVAST - - - - - - - - - - - - - - -
HINWO - - - - - - - - - - - - - - -
KACJA - - - - - 4.7 4.1 - - - - - 4.2 6.2 -
LUNRO - - - - - - 8.2 8.3 8.4 2.9 - - 3.5 - 3.0
MOLSI 6.9 2.6 1.9 - - 5.3 - - - 3.4 - 6.4 2.3 - -
7.5 3.6 1.9 - - 7.2 - - 1.4 3.5 1.9 6.9 2.8 - 2.7
4.4 6.8 6.7 6.7 6.6 3.5 - 0.9 3.3 0.1 1.1 2.6 - - 2.4
ROBBI 3.0 - - 1.0 7.5 2.4 3.9 7.3 3.3 5.4 4.2 1.1 3.6 - 1.5
SLAST - - - - - - - - - - - - - - -
STOEN - - - - - - - 1.1 - 5.8 - 4.0 2.0 - -
STRJO 1.6 2.0 3.3 1.9 2.3 - - 0.5 - - - 0.5 - - 2.0
4.1 5.0 3.6 4.1 2.0 - - - - - - - - - -
2.6 2.7 4.3 3.7 3.3 - - - - - - - - - -
TRIMI - 0.7 3.0 0.3 1.0 5.7 2.0 0.7 0.2 6.7 0.3 - - - -
YRJIL - 2.3 - 1.2 - 2.4 - - 1.8 1.3 0.8 2.0 1.7 - -
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Sum 34.1 28.4 29.2 19.9 27.7 31.2 23.5 18.8 21.6 38.1 14.0 26.3 21.6 6.2 18.3
May 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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BENOR - - - - - - 2.7 3.3 - 1.8 - 0.2 - - - -
- - - - - - - 0.5 - 1.0 - - - - - -
BRIBE 0.5 4.0 0.5 - 0.5 - - 2.8 3.2 1.1 2.5 1.0 - 2.0 - 1.4
CASFL - 5.3 6.8 4.2 3.6 4.6 - - 4.2 5.0 - - - - - -
EVAST - - 4.5 4.5 - 4.5 4.4 4.3 4.3 - - - - 3.9 - 3.8
HINWO - - 3.7 5.8 5.3 3.4 - 5.6 - - - - - - 5.2 0.9
KACJA 5.8 - 5.1 5.0 - 3.9 - - 2.8 5.3 - - - - - -
LUNRO - - - - - - - - - - - - - - - -
MOLSI - 1.8 4.9 5.9 5.7 5.7 - 4.2 5.6 - - - - - - -
- 1.6 6.5 6.5 6.4 2.3 - 6.1 6.3 2.7 2.1 - - - 6.0 5.9
- 2.7 5.7 0.8 5.5 5.4 5.3 5.3 1.3 0.2 - 2.1 - - 4.9 4.9
ROBBI - 2.9 2.3 6.8 6.7 4.2 - 6.6 6.6 3.2 - - - - - -
SLAST - - - - - - 3.7 5.2 5.2 5.7 - - - - - 3.5
STOEN 4.7 7.1 6.6 7.1 - - - - 6.8 - - - - - - -
STRJO - 0.9 1.2 1.0 0.5 1.0 0.8 1.0 1.2 - - - - - 1.5 -
- 1.2 - - - 0.5 - 1.0 - - - - - - 0.5 -
- 3.3 1.3 2.0 - 2.3 1.5 1.0 - - - - - - 1.5 -
TRIMI - - - - - - - - - - - - - - - -
YRJIL 1.5 0.5 2.0 - - - - - - - - - - - - -
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Sum 12.5 31.3 51.1 49.6 34.2 37.8 18.4 46.9 47.5 26.0 4.6 3.3 - 5.9 19.6 20.4
3. Results (Meteors)
====================
May 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
--------------------------------------------------------------------------------
BENOR - - - - - - - - 2 3 1 2 - - -
- - - - - - - - - 3 1 1 - - -
BRIBE 6 7 6 2 6 - - - - - - 2 3 - 9
CASFL - - - - - - 3 - 2 4 5 - - - -
EVAST - - - - - - - - - - - - - - -
HINWO - - - - - - - - - - - - - - -
KACJA - - - - - 2 4 - - - - - 2 2 -
LUNRO - - - - - - 43 44 42 6 - - 7 - 1
MOLSI 37 14 13 - - 38 - - - 26 - 54 17 - -
21 12 4 - - 20 - - 5 8 6 9 3 - 6
7 14 8 12 11 4 - 2 2 1 2 6 - - 2
ROBBI 2 - - 4 5 16 4 9 7 6 4 3 7 - 2
SLAST - - - - - - - - - - - - - - -
STOEN - - - - - - - 1 - 7 - 4 3 - -
STRJO 4 6 8 5 5 - - 1 - - - 1 - - 4
5 10 7 9 5 - - - - - - - - - -
6 7 10 9 9 - - - - - - - - - -
TRIMI - 2 7 2 2 11 3 2 1 17 1 - - - -
YRJIL - 3 - 2 - 1 - - 5 8 2 6 5 - -
--------------------------------------------------------------------------------
Sum 88 75 63 45 43 92 57 59 66 89 22 88 47 2 24
May 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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BENOR - - - - - - 5 7 - 4 - 1 - - - -
- - - - - - - 1 - 2 - - - - - -
BRIBE 1 5 1 - 1 - - 8 5 2 7 4 - 4 - 4
CASFL - 9 13 5 9 9 - - 8 6 - - - - - -
EVAST - - 7 8 - 7 9 3 12 - - - - 5 - 10
HINWO - - 14 27 14 3 - 17 - - - - - - 9 1
KACJA 3 - 5 5 - 2 - - 1 2 - - - - - -
LUNRO - - - - - - - - - - - - - - - -
MOLSI - 7 52 70 42 31 - 41 43 - - - - - - -
- 4 21 14 11 5 - 10 7 4 4 - - - 13 15
- 5 9 2 8 8 10 9 3 1 - 4 - - 6 6
ROBBI - 4 2 7 9 7 - 7 6 4 - - - - - -
SLAST - - - - - - 4 10 10 10 - - - - - 4
STOEN 11 22 27 7 - - - - 21 - - - - - - -
STRJO - 2 3 3 1 3 2 2 2 - - - - - 3 -
- 3 - - - 1 - 2 - - - - - - 1 -
- 6 5 8 - 6 5 2 - - - - - - 3 -
TRIMI - - - - - - - - - - - - - - - -
YRJIL 3 3 1 - - - - - - - - - - - - -
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Sum 18 70 160 156 95 82 35 119 118 35 11 9 - 9 35 40
Sirko Molau, 2007/06/29