(meteorobs) IMO Video Observations Results - September 2004

Sirko Molau sirko at molau.de
Tue Oct 12 15:28:36 EDT 2004


Results of the IMO Video Meteor Network - September 2004
========================================================

The first half of September was a dream for each meteor observer: Until well
over the middle of the month, there was plenty of Sunshine, Indian summer
temperatures at daytime and clear skies at night. Only a few cirrus clouds 
disturbed the observations sometimes. Just with the beginning of autumn the 
weather in Central Europe changed dramatically. From now on, it was cold and 
rainy. Observations were restricted to a few cloud gaps, and the observational
statistics looks like a sparsely occupied matrix...

After the new AVIS2 camera was operated with a 35 mm f/2.0 lens during the
Perseids, I now use a 50 mm standard lens f/1.4 in normal operation to ensure
that the Moon never crosses the field of view. Whereas the first moonlit 
September nights were still "normal", the camera later took my breath away 
for a second time. With now 60 deg field of view and a limiting magnitude 
beyond 6 mag, I regularly recorded between 150 and 200 meteors per night
in the absence of any major shower! Each night AVIS2 recorded as many
Aurigids and Piscids as a Mintron camera overall in the same night. By the
end of the month the camera had recorded the same order of magnitude of 
meteors as all other cameras together - almost like Rob McNaught in Australia
at that time.


1. Observers
============

Code    Name        Place           Camera         FOV    LM Nights Time Meteors
--------------------------------------------------------------------------------
EVAST Evans       Moreton       RF1 (1.2/12)      20 dg  4 mag   9   70.1 h  263
KACJA Kac         Kostanjevec   METKA (0.8/8)     55 dg  4 mag  11   82.2 h  110
KOSDE Koschny     Noordwijkerh. ICC3 (0.85/25)    25 dg  6 mag   9   57.4 h  362
MOLSI Molau       Seysdorf      AVIS2 (1.4/50)    60 dg  6 mag  18   94.7 h 1755
                                MINCAM1 (1.4/12)  35 dg  4 mag  21  145.6 h  231
SLAST Slavec      Ljubljana     KAYAK1 (1.8/28)   50 dg  4 mag  12   79.5 h  307
STRJO Strunk      Leopoldshoehe MINCAM2 (0.8/8)   42 dg  4 mag  21  108.9 h  289
                                MINCAM3 (0.8/6)   55 dg  3 mag  15   97.9 h  295
YRJIL Yrjola      Kuusankoski   FINEXCAM (0.8/6)  50 dg  3 mag  12   56.2 h  192
--------------------------------------------------------------------------------
Sum                                                             28  792.5 h 3804

2. Observing Times (h)
======================

Sep    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
EVAST   -    -   7.5  8.1   -    -   7.7  7.3   -    -    -    -    -   7.7  7.5
KACJA  5.0   -   8.6  8.4   -   6.1   -    -   6.1  8.7  8.6   -    -    -    -
KOSDE  5.6  7.2  6.1  7.8  6.4   -   7.7  7.4  7.2   -    -    -    -    -    -
MOLSI  5.4  7.2   -   8.4  5.7  7.6  5.9  6.6  5.7  4.3  2.7  2.5  6.1   -    -
       9.0  9.1   -   9.3  9.3  8.3  9.4  9.5  6.4  8.1  3.7  9.4  6.8   -   2.9
SLAST   -    -   4.0  2.6  4.3  8.7  7.5  7.5   -   7.4  7.1   -   8.9   -    -
STRJO   -   7.7  8.2   -    -   8.0  8.2  8.6  7.9  4.6  1.5  5.0  3.9  9.0  8.1
       4.8  7.8   -    -   8.0  8.3  8.5  8.4  8.4  5.3   -   5.8   -   8.7  7.4
YRJIL   -    -    -    -    -   6.7  3.1  6.4   -   2.6  3.0   -   2.3  6.9  3.4
--------------------------------------------------------------------------------
Sum   29.8 39.0 34.4 44.6 33.7 53.7 58.0 61.7 41.7 41.0 26.6 22.7 28.0 32.3
29.3    

Sep    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30
--------------------------------------------------------------------------------
EVAST   -    -   9.1   -   6.7   -    -    -    -   8.5   -    -    -    -    -
KACJA   -   6.7  9.3  8.6  6.1   -    -    -    -    -    -    -    -    -    -
KOSDE   -    -    -    -    -    -    -    -    -    -    -    -    -   2.0   -
MOLSI   -   7.8  9.0   -   3.5  3.9   -    -   2.0   -    -    -    -   0.4   -
      10.0 10.0 10.2   -   4.3  7.3   -   1.1  0.5   -    -    -    -   1.0   -
SLAST   -   4.9  7.7  8.9   -    -    -    -    -    -    -    -    -    -    -
STRJO  9.5  5.7  1.0  5.0  0.7  3.7   -   0.5   -    -    -   0.5   -   1.6   -
       8.9   -    -   6.0   -    -    -    -    -    -   0.5  1.1   -    -    -
YRJIL  5.2   -    -    -   2.8   -    -   5.5   -    -    -    -    -    -   8.3
--------------------------------------------------------------------------------
Sum   33.6 35.1 46.3 28.5 24.1 14.9   -   7.1  2.5  8.5  0.5  1.6   -   5.0 
8.3         

3. Results (Meteors)
====================

Sep    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
EVAST   -    -   27   36    -    -    9    9    -    -    -    -    -   35   38
KACJA   6    -   11   10    -    4    -    -    7   14    8    -    -    -    -
KOSDE  41   21   13   45   20    -   67   77   58    -    -    -    -    -    -
MOLSI  40   84    -   84  103  178  159  175  157   58   22   25  112    -    -
       24   18    -   15   15   18   10   17   13   14    3    8   10    -    5
SLAST   -    -    4    6   10   18   24   12    -   54   21    -   52    -    -
STRJO   -   24   14    -    -   20   15   22   26   10    4   11   12   24   28
       12   22    -    -   39   23   10   42   23    8    -   13    -   30   33
YRJIL   -    -    -    -    -   32    7   35    -    6   13    -    6   19    9
--------------------------------------------------------------------------------
Sum   123  169   69  196  187  293  301  389  284  164   71   57  192  108 
113     

Sep    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30
--------------------------------------------------------------------------------
EVAST   -    -   45    -   24    -    -    -    -   40    -    -    -    -    -
KACJA   -   16   12   13    9    -    -    -    -    -    -    -    -    -    -
KOSDE   -    -    -    -    -    -    -    7    -    -    -    -    -   20    -
MOLSI   -  185  201    -   75   65    -    -   31    -    -    -    -    1    -
       20   14   12    -    4    6    -    3    1    -    -    -    -    1    -
SLAST   -   44   43   19    -    -    -    -    -    -    -    -    -    -    -
STRJO  24   20    3   13    2   11    -    1    -    -    -    2    -    3    -
       20    -    -   17    -    -    -    -    -    -    1    2    -    -    -
YRJIL  14    -    -    -    5    -    -    2    -    -    -    -    -        44
--------------------------------------------------------------------------------
Sum    78  279  316   62  119   82    -    6   32   40    1    4    -   25   44

-- 
************************************************************ 
*   Sirko Molau                 *                          *
*   Abenstalstr. 13b            *              __          *
*   D-84072 Seysdorf            *       " 2B v 2B "        *
*   Germany                     *                          * 
*   phone: +49-8752-869438      *             Shakespeare  *
*   email: sirko at molau.de       *                          *
*   www  : www.molau.de         *                          *
************************************************************


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