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

The reduction of night time hours towards the summer becomes most prominent
in May. By the end of the month, Finland experiences white nights and Ilkka
Yrjola has to suspend observation until the Perseids. At the geographic
latitude of Berlin, the usable night time reduces from six to three and a half
hours in the course of the month. In Munich, there are five observing
hours by the end of May, and our Slovenian observers have still 30 minutes 
more. It becomes more intuitive if you remember that the position of the
Sun early May is comparable to the Perseid time - only that is usually colder 
than in August.

Compared to April, the effective observing time has reduced somewhat as 
expected. With 14 participating cameras and good weather (two observers 
reported 24 and 23 observing nights, respectively), May was again more fruitful 
than in previous years. In fact, by the end of May we had recorded a few 
meteors more than in the record year 2003. As the first few months of the 
year are typically underrepresented in the video archive, the overall database 
has improved significantly last month. With an overall of 5919 records, May 
is still the month with least meteors, though.

Let's hope that the year continuous that positively.


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

Code    Name        Place           Camera         FOV    LM Nights Time Meteors
--------------------------------------------------------------------------------
BENOR Benitez-S.  Las Palmas    TIMES5 (0.8/6)    50 dg  3 mag   7   52.5 h   14
EVAST Evans       Moreton       RF1 (1.2/12)      20 dg  4 mag   8   42.5 h   74
KACJA Kac         Kostanjevec   METKA (0.8/8)     42 dg  2 mag  15   86.2 h   90
KOSDE Koschny     Noordwijkerh. ICC3 (0.85/25)    25 dg  6 mag   8   26.6 h   61
MOLSI Molau       Seysdorf      AVIS2 (1.4/50)    60 dg  6 mag  17   71.8 h  741
                                MINCAM1 (0.8/6)   50 dg  3 mag  23  128.0 h  187
SLAST Slavec      Ljubljana     KAYAK1 (1.8/28)   50 dg  4 mag   9   43.1 h   55
STORO Stork       Ondrejov      OND1 (2.4/35)     30 dg  7 mag   1    2.3 h    2
                  Kunzak        KUN1 (2.4/35)     30 dg  7 mag   1    1.9 h    3
                                KUN2 (2.8/16)     80 dg  5 mag   1    1.9 h    2
STRJO Strunk      Leopoldshoehe MINCAM2 (0.8/6)   55 dg  3 mag  20   47.6 h  101
                                MINCAM3 (0.8/8)   42 dg  4 mag  15   11.6 h   23
                                VK1 (0.75/50)     20 dg  8 mag   5   19.5 h   94
YRJIL Yrjola      Kuusankoski   FINEXCAM (0.8/6)  50 dg  3 mag   6   13.4 h   21
--------------------------------------------------------------------------------
Sum                                                             30  548.9 h 1468


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

May    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
BENOR   -   8.1   -    -    -   8.6  8.0   -   7.8  8.5   -   7.5   -    -    -
EVAST   -    -    -    -    -    -   5.6  5.4   -    -    -    -   3.2  4.9   -
KACJA  7.5  4.2   -    -    -    -    -   4.2   -    -   6.0  7.0  6.6   -    -
KOSDE   -    -    -    -    -    -    -    -    -    -    -    -    -    -   3.7
MOLSI  6.7  1.0   -    -    -    -    -    -   5.9  3.2  6.0  5.9  5.8   -   4.9
       7.7  3.7   -   0.5  4.5   -   4.4  0.5  7.3  7.2  7.2  7.2  6.7  1.5  4.9
SLAST   -    -    -    -    -    -    -    -    -    -   2.7  5.0   -    -   4.4
STORO   -   2.3   -    -    -    -    -    -    -    -    -    -    -    -    - 
        -   1.9   -    -    -    -    -    -    -    -    -    -    -    -    - 
        -   1.9   -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO  1.3  1.0  1.2  0.4   -   3.6  0.8  0.8  0.5   -   2.6  5.5   -    -    -
        -   1.5   -    -    -    -    -    -    -    -    -    -    -    -   1.5
        -    -    -    -    -    -    -    -    -    -   4.6  5.2   -    -    -
YRJIL   -   3.2   -   3.0   -   2.1  2.1   -   1.8   -    -   1.2   -    -    -
--------------------------------------------------------------------------------
Sum   23.2 28.8  1.2  3.9  4.5 14.3 20.9 10.9 23.3 18.9 29.1 44.5 22.3  6.4 19.4

May    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
-------------------------------------------------------------------------------------
BENOR   -    -    -   4.0   -    -    -    -    -    -    -    -    -    -    -    -
EVAST   -    -    -    -   4.3   -   4.2   -    -    -    -   4.1  3.8  7.0   -    -
KACJA   -    -    -    -   6.5  3.0  7.2   -   3.0  6.1  6.0  6.3  6.6   -   6.0   -
KOSDE   -   0.3  4.9   -    -    -    -   4.2   -    -    -   3.0  4.0   -   2.0  4.5
MOLSI   -    -   4.2  5.5  1.4   -    -    -    -   3.1  3.6  3.7  3.7  3.7   -   3.5
        -    -   6.7  6.7  6.7   -    -    -   6.5  6.5  6.4  6.4  6.3  6.3   -   6.2
SLAST   -    -    -   5.2   -    -   5.2   -    -   4.8  5.5   -   5.0  5.3   -    -
STORO   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   -   3.4  5.1  1.4   -   0.5  0.8  4.7   -   2.9  4.5  1.9  2.0   -   0.5  2.2
        -    -   3.4   -   1.3   -    -    -    -    -    -   3.9   -    -    -    - 
        -    -    -   1.8   -    -    -    -    -   4.0   -    -    -    -    -   3.9
YRJIL   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
-------------------------------------------------------------------------------------
Sum     -   3.7 24.3 24.6 20.2  3.5 17.4  8.9  9.5 27.4 26.0 29.3 31.4 22.3  8.5 20.3


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

May    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
BENOR   -    1    -    -    -    4    1    -    1    4    -    2    -    -    -
EVAST   -    -    -    -    -    -   13   16    -    -    -    -    3    8    -
KACJA  17    4    -    -    -    -    -    2    -    -    7    6    5    -    -
KOSDE   -    -    -    -    -    -    -    -    -    -    -    -    -    -    6
MOLSI  81    5    -    -    -    -    -    -   70   57   73   68   68    -   41
        9    3    -    1    2    -    6    1   10   10   13    7   17    2    5
SLAST   -    -    -    -    -    -    -    -    -    -    1   10    -    -    3
STORO   -    2    -    -    -    -    -    -    -    -    -    -    -    -    -
        -    3    -    -    -    -    -    -    -    -    -    -    -    -    -
        -    2    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   4    2    4    1    -    8    2    1    1    -    5    7    -    -    -
        -    2    -    -    -    -    -    -    -    -    -    -    -    -    5
        -    -    -    -    -    -    -    -    -    -   28   29    -    -    -
YRJIL   -    1    -    7    -    6    4    -    1    -    -    2    -    -    -
--------------------------------------------------------------------------------
Sum   111   25    4    9    2   18   26   20   83   71  127  131   93   10   60

May    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
-------------------------------------------------------------------------------------
BENOR   -    -    -    1    -    -    -    -    -    -    -    -    -    -    -    -
EVAST   -    -    -    -   10    -    8    -    -    -    -   10    6    -    -    -
KACJA   -    -    -    -    6    2    5    -    3    5    5    6    8    5    4    -
KOSDE   -    5    2    -    -    -    -   13    -    -    -    9   10    -    5   11
MOLSI   -    -   26   26   12    -    -    -    -   33   14   52   44   27    -   44
        -    -    5   12    9    -    -    -    8   16   12    6   10   11    -   12
SLAST   -    -    -    9    -    -    4    -    -    8    9    -    5    6    -    -
STORO   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
        -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   -    6   10    3    -    1    1    8    -    9    8    6    4    -    3    7
        -    -    4    -    3    -    -    -    -    -    -    9    -    -    -    -
        -    -    -    3    -    -    -    -    -   13    -    -    -    -    -   21
YRJIL   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
-------------------------------------------------------------------------------------
Sum     -   11   47   54   40    3   18   21   11   84   48   98   87   49   12   95

Sirko Molau, 2005/06/16