Results of the IMO Video Meteor Network - August 2005
=====================================================

After the Leonid storm years are history, August has become the favourite
month for meteor observers again. The Perseids cause an increase in activity
starting from mid-July. In the first days of August they outnumber the
sporadic meteors, and in the days around the maximum almost every camera 
records many tens or hundreds of meteors ... given the right lunar and 
weather conditions! This year, the lunar phase was perfect, but the weather 
was far from optimal at many sites. Interestingly, the conditions varied
significantly at relatively nearby sites. At the Ketzuer observing camp near
Berlin and in the far North (Finland) it was almost completely cloudy in the 
week around the maximum. Only a few observing hours could be collected
in cloud gaps. In the second half of the month the weather improved
significantly. In Bielefeld it was similar, but clear skies did not came back
before the end of the month. In Bavaria, however, it was vice versa: Skies
were clear up to the Perseid maximum, and only then poor weather with floodings
near the major rivers came in. Even farther south in Slovenia the situation
was similar. Stephen Evans, on the contrary, had remarkably good weather on
"the island" and obtain a personal record with 18 observing nights. It should
be noted, though, that his camera is now permanently mounted and does not 
have to be adjusted every night.

In summary, August 2005 presented to every observer a few pleasing nights. 
With a record breaking participation of 9 observers an 15 cameras we recorded 
almost 6000 meteors, which is comparable to last year's result.

A major weather change occured at the end of August, when a stable large-scale
high pressure system establish over central Europe and presented many clear
nights to almost every observer of the network. It almost seemed as if summer 
wanted to excuse for the rainy weeks before. What fascinated me most was the 
dramatic increase in the meteor rate these days. Shortly after the Perseid 
peak, when the shower was still active, AVIS2 recorded up to 150 meteors a 
night, whereas by the end of August it was well over 200. In the absence 
of major showers, this activity came almost exclusively from sporadic meteors!


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

Code    Name        Place           Camera         FOV    LM Nights Time Meteors
--------------------------------------------------------------------------------
EVAST Evans       Moreton       RF1 (1.2/12)      20 dg  4 mag  18  100.3 h  707
KACJA Kac         Kostanjevec   METKA (0.8/8)     42 dg  2 mag   9   58.5 h  417
KOSDE Koschny     Noordwijkerh. ICC3 (0.85/25)    25 dg  6 mag  11   57.3 h  391
MOLSI Molau       Seysdorf      AVIS2 (1.4/50)    60 dg  6 mag  21   88.3 h 1859
                                MINCAM1 (0.8/6)   50 dg  3 mag  23  118.4 h  650
SLAST Slavec      Ljubljana     KAYAK1 (1.8/28)   50 dg  4 mag  13   52.4 h  343
STORO Stork       Kunzak        KUN1 (2.4/35)     30 dg  7 mag   1    2.7 h    6
                                KUN2 (2.8/16)     80 dg  5 mag   1    2.4 h    9
                  Ondrejov      OND1 (1.4/50)     50 dg  6 mag   2    5.7 h  112
STRJO Strunk      Leopoldshoehe MINCAM2 (0.8/6)   55 dg  3 mag  22   88.7 h  304
                                MINCAM3 (0.8/8)   42 dg  4 mag  11   62.2 h  195
                                VK1 (0.75/50)     20 dg  8 mag   4   23.4 h  159
UEBST Ueberschaer Aachen        MIMO (0.95/25)    13 dg  4 mag  19  104.0 h  386
                                MIMO2 (0.8/6)     50 dg  3 mag   2    4.6 h   61
YRJIL Yrjola      Kuusankoski   FINEXCAM (0.8/6)  55 dg  3 mag  12   37.1 h  243
--------------------------------------------------------------------------------
Sum                                                             31  806.0 h 5842


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

Aug    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
EVAST   -    -   5.5   -    -   5.5  5.8  6.0  3.6  6.4  4.1  6.0   -   5.9   -
KACJA   -    -    -    -   6.9   -   7.5  7.2  7.6  7.0   -   8.1   -    -    -
KOSDE  4.1   -    -    -   3.5   -    -    -    -    -   2.1  4.2   -    -    -
MOLSI  5.0   -    -   0.3   -   4.8  2.0  2.5   -   0.7  0.8   -   1.9   -   4.5
       5.2   -   0.3  7.3   -   6.3  4.0  4.6  4.0  7.7  6.8  0.2  3.9  4.3   -
SLAST  5.8   -    -   6.1  5.9   -   2.1  3.0  5.7  6.0   -   6.5   -    -    -
STORO  2.7   -    -    -    -    -    -    -    -    -    -    -    -    -    -
       2.4   -    -    -    -    -    -    -    -    -    -    -    -    -    - 
       2.6   -    -    -    -    -    -    -    -    -   3.1   -    -    -    -
STRJO  5.6  5.7  5.8  2.8  1.3  1.7  1.2   -   4.5  2.6  4.1  0.5   -   0.7   - 
       4.1  5.2   -    -    -    -    -    -   1.9  1.0   -    -    -    -    - 
        -    -    -   4.2   -    -    -    -    -    -    -    -    -    -    -
UEBST   -   4.7  7.2  4.3   -    -    -    -   3.3  1.8  1.9  7.6   -    -    -
        -    -    -    -    -    -    -    -    -   0.9   -   3.7   -    -    -
YRJIL   -    -    -    -    -    -    -    -    -    -    -   1.0   -    -    -
--------------------------------------------------------------------------------
Sum   37.5 15.6 18.8 25.0 17.6 18.3 22.6 23.3 30.6 34.1 22.9 37.8  5.8 10.9  4.5

Aug    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
-------------------------------------------------------------------------------------
EVAST  4.9  6.4   -    -   6.9   -   6.5   -   4.0  4.9  3.8   -   6.4   -   7.7   -
KACJA   -    -   2.0   -    -    -    -    -    -    -    -    -    -   6.1   -   6.1
KOSDE  5.7  6.2   -    -    -    -   3.1   -    -    -    -    -   5.9  6.9  8.0  7.6
MOLSI  6.2  6.6  6.3   -   0.6  6.7  4.2   -   3.7   -   2.2   -   6.8  7.9  7.3  7.3
       0.1  6.4  8.2   -    -    -    -   2.3  4.8  0.8  5.5   -   8.8  8.9  9.0  9.0
SLAST   -   2.7  2.2   -    -    -    -    -    -   1.2   -    -    -   1.1  4.1   -
STORO   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    - 
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    - 
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO  6.7  6.8  6.9   -   1.3   -    -    -   0.2   -   2.0  4.8   -   7.8  7.8  7.9
       4.9  6.9  6.9   -    -    -    -    -    -    -    -    -   7.8  7.8  7.8  7.9
       5.8  6.6  6.8   -    -    -    -    -    -    -    -    -    -    -    -    -
UEBST  7.5  7.3  5.5   -    -    -   5.0  3.8   -   7.3  4.5  6.7  7.3  7.4  4.1  6.8
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
YRJIL  1.1  2.1  3.9  4.0  2.1   -    -    -   2.8  5.4  2.2  1.9   -    -   5.1  5.5
-------------------------------------------------------------------------------------
Sum   42.9 58.0 48.7  4.0 10.9  6.7 18.8  6.1 15.5 19.6 20.2 13.4 43.0 53.9 60.9 58.1


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

Aug    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
EVAST   -    -   37    -    -   49   52   69   17   70   57   99    -   26    -
KACJA   -    -    -    -   41    -   32   59   67   35    -  169    -    -    -
KOSDE  26    -    -    -   26    -    -    -    -    -   24   24    -    -    -
MOLSI  98    -    -    4    -  103   34   53    -   15   22    -   63    -  140
       18    -    2   32    -   27   20   46   23   66  134    3   14   18    -
SLAST  70    -    -   77   74    -    3   22   15   20    -   44    -    -    -
STORO   6    -    -    -    -    -    -    -    -    -    -    -    -    -    -
        9    -    -    -    -    -    -    -    -    -    -    -    -    -    - 
       32    -    -    -    -    -    -    -    -    -   80    -    -    -    -
STRJO  15   17   20   16    4    8    5    -   14   11   11    2    -    4    - 
        8   22    -    -    -    -    -    -    5    2    -    -    -    -    - 
        -    -    -   37    -    -    -    -    -    -    -    -    -    -    -
UEBST   -   23   31   16    -    -    -    -   10    8   15   54    -    -    - 
        -    -    -    -    -    -    -    -    -    9    -   52    -    -    -
YRJIL   -    -    -    -    -    -    -    -    -    -    -   14    -    -    -
--------------------------------------------------------------------------------
Sum   282   62   90  182  145  187  146  249  151  236  343  461   77   48  140

Aug    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
-------------------------------------------------------------------------------------
EVAST  31   39    -    -   28    -   24    -   15   17   12    -   40    -   25    -
KACJA   -    -    2    -    -    -    -    -    -    -    -    -    -    4    -    8
KOSDE  49   40    -    -    -    -   10    -    -    -    -    -   45   46   46   55
MOLSI 153  122   66    -    4   62   41    -   31    -   19    -  174  241  224  190
        1   22   41    -    -    -    -    6   12    2   29    -   32   43   38   21
SLAST   -    3    3    -    -    -    -    -    -    1    -    -    -    6    5    -
STORO   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    - 
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    - 
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO  28   22   20    -    4    -    -    -    1    -    6   18    -   29   28   21
       20   22   23    -    -    -    -    -    -    -    -    -   19   25   26   23
       45   57   20    -    -    -    -    -    -    -    -    -    -    -    -    -
UEBST  20   28   21    -    -    -    5   13    -   28   11   18   23   19   16   27 
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
YRJIL   7   12   36   38    9    -    -    -    8   24    5    7    -    -   47   36
-------------------------------------------------------------------------------------
Sum   354  367  232   38   45   62   80   19   67   72   82   43  333  413  455  3811

Sirko Molau, 2005/09/13