Results of the IMO Video Meteor Network - January 2008
======================================================

The year 2008 started in a successful way. In particular in Germany the 
weather was unusually good, so that several observers got more than 20 
observing nights. At other sites, the weather was mediocre, but an overall 
of 1,200 hours of observing time and 4,500 meteors are a decent result for 
January. It remains to add that the data of SRAKA is not yet included 
(Mihaela is about to finish her PhD - good luck!).

With respect to meteor activity, the Quadrantids were the only noticeable 
shower. In the beginning it looked as if they would become a victim of poor 
weather again, but right at the maximum skies cleared over eastern and 
southern Germany, so that maximum activity could be covered by a number of 
video cameras.

Figure 1 shows the activity profile of the shower as derived from data of 
AKM2, MINCAM1, REMO1, ARMEFA and FINEXCAM. The data set (274 QUA, 81 SPO) was 
splitted in 1/2 hour intervals, corrected for the radiant altitude, and averaged
over all five cameras. Interestingly, the Quadrantid activity was almost 
constant between 01:00 and 04:30 UT, and increased only between 04:30 and 
05:30.


Figure 1: Activity profile of the Quadrantids on the morning of January 4, 
2008.

Some weeks ago, Geert Barentsen wrote how to use Google Earth for the 
visualization of the cameras fields of view. He wrote a little web 
application that takes the position of the camera and the coordinates of 
the borders of fov as input, and creates a KML file required for Google Earth. 
Based on this, I provided a small tool that creates the input for his web 
application based on a MetRec reference star file. Depending on the camera, 
either the full rectangular field of view is used, or you can mark the 
borders of the real field of view in a comfortable way (e.g. in case of an 
image-intensified camera with a circular fov). Currently, Geert and me are 
still optimizing the result, but later the KML code generation shall be 
integrated directly into the MetRec tool.

To show the ability of Google Earth I measured the fields of view of all 
IMO network cameras and supplied the resulting KML file at www.imonet.org
for download. Figure 2 shows the geometry over southern Germany as an 
example. It is easy to recognize that the field of view of MINCAM1 
(Seysdorf, green) and AKM2 (Brannenburg, blue) overlap partly. A meteor pair 
recorded by both cameras on January 3 confirms the result (Figure 3).


Figure 2: Fields of view of MINCAM1 and AKM2 displayed in Google Earth.


Figure 3: A meteor recorded by MINCAM1 (left) and AKM2 (right) on Jan 3, 
2008, 22:42:49 UT.

Google Earth is well suited to align cameras in a double-station setup. 
Further areas of application (e.g. the spatial visualization of meteor trails)
are currently under investigation.


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

Code    Name        Place           Camera         FOV    LM Nights Time Meteors
--------------------------------------------------------------------------------
BENOR Benitez-S.  Las Palmas    TIMES4 (1.4/50)   20 dg  3 mag  8   10.5 h    33
                                TIMES5 (0.95/50)  10 dg  3 mag  5    1.6 h    13
BRIBE Brinkmann   Herne         HERMINE (0.8/6)   55 dg  3 mag 20   59.9 h   192
CASFL Castellani  Monte Baldo   BMH1 (0.8/6)      55 dg  3 mag 13   69.0 h   135
CRIST Crivello    Valbrevenna   STG38 (0.8/3.8)   80 dg  3 mag  1    6.7 h    11
EVAST Evans       Moreton       RF1 (0.8/12)      25 dg  5 mag  7   41.3 h   133
HINWO Hinz        Brannenburg   AKM2 (0.85/25)    32 dg  6 mag 21  150.6 h   584
KACJA Kac         Kostanjevec   METKA (0.8/8)     42 dg  4 mag 14  112.5 h   263
                  Kamnik        REZIKA (0.8/6)    55 dg  3 mag  8   46.3 h   154
                  Ljubljana     ORION1 (0.8/8)    42 dg  4 mag 13   61.6 h   160
KOSDE Koschny     Noordwijkerh. ICC4 (0.85/25)    25 dg  5 mag  8   41.9 h    70
LUNRO Lunsford    Chula Vista   BOCAM (1.4/50)    60 dg  6 mag 14   95.9 h   518
MOLSI Molau       Seysdorf      AVIS2 (1.4/50)    60 dg  6 mag 12   58.2 h   479
                                MINCAM1 (0.8/6)   55 dg  3 mag 23   93.0 h   349
                  Ketzuer       REMO1 (0.8/3.8)   80 dg  3 mag 22   86.6 h   314
PRZDA Przewozny   Berlin        ARMEFA (0.8/6)    55 dg  3 mag 13   35.3 h   166
ROBBI Roberto     Verona        FIAMENE (0.8/3.8) 80 dg  3 mag 12   64.8 h   170
SLAST Slavec      Ljubljana     KAYAK1 (1.8/28)   50 dg  4 mag  3   12.5 h    21
STOEN Stomeo      Scorze        MIN38 (0.8/3.8)   80 dg  3 mag  9   68.6 h   146
STORO Stork       Ondrejov      OND1 (1.4/50)     55 dg  6 mag  1    3.2 h    60
STRJO Strunk      Herford       MINCAM2 (0.8/6)   55 dg  3 mag 13   33.4 h    99
                                MINCAM3 (0.8/8)   42 dg  4 mag  2    7.6 h    12
                                MINCAM5 (0.8/6)   55 dg  3 mag  4   16.8 h    47
YRJIL Yrjola      Kuusankoski   FINEXCAM (0.8/6)  55 dg  3 mag  8   49.0 h   243
--------------------------------------------------------------------------------
Sum                                                            31 1226.7 h  4372


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

Jan    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
BENOR   -    -    -    -    -    -    -   0.9   -   0.5   -   3.5  2.2   -    - 
        -    -    -    -    -    -    -    -    -    -    -   0.7  0.4   -    -
BRIBE  4.3  1.5  0.4  2.3   -   6.6  3.4  5.2  3.1  0.2  0.4  5.9  7.7  0.3   -
CASFL   -    -    -    -    -  10.7 11.7  5.7  8.7  3.0   -   0.5   -    -    -
CRIST   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
EVAST   -    -    -    -   8.2  4.0   -   4.8   -    -    -    -    -    -    -
HINWO  8.1 13.0  8.7  7.7   -    -  12.1 11.7  1.7 12.0  6.5  0.7 12.8  0.7  2.3
KACJA   -    -    -    -    -  10.2   -  11.4   -    -   2.7   -    -   8.2  2.0
        -    -    -    -    -    -    -    -    -   2.0   -    -    -    -    - 
        -    -    -   1.6   -    -   0.9   -    -   1.2   -    -    -    -    -
KOSDE   -   0.7   -    -   6.6  4.9  1.4   -   4.4   -    -    -    -    -    -
LUNRO  9.0   -    -    -    -    -    -    -    -    -   9.9 11.8  9.9 10.3  9.4
MOLSI   -    -    -    -    -   7.2 10.6  6.9   -  10.8  6.4   -    -    -    - 
        -   0.7  9.7  4.7   -   7.6  9.1 11.6  0.5  8.0  4.0   -    -   0.1  1.6
       1.9   -   6.0  6.9  3.9  2.9  5.4 10.4  1.8  7.3  1.8 13.8  6.8  3.2  1.4
PRZDA   -    -   7.9  1.0   -   1.2  1.0   -   0.9  0.4  0.9  2.7   -   2.8   -
ROBBI   -    -    -    -    -   8.4  7.1  2.3  3.3   -    -    -    -    -    -
SLAST   -    -    -   0.5   -    -    -    -    -    -    -    -    -    -    -
STOEN 10.6   -    -    -    -    -    -   1.3   -    -    -    -    -    -    -
STORO   -    -    -    -    -    -    -   3.2   -    -    -    -    -    -    -
STRJO  4.0   -   2.0  2.5   -   2.0  1.2   -    -   2.1  1.3  1.7 12.1  1.0   - 
        -    -    -    -    -    -    -    -    -    -    -    -   6.7   -    - 
        -    -    -    -    -    -    -   2.8  3.0   -    -    -   8.3   -    -
YRJIL   -   4.5  9.0 13.9 14.5   -    -    -    -    -    -    -   4.3  0.3   -
--------------------------------------------------------------------------------
Sum   37.9 20.4 43.7 41.1 33.2 65.7 63.9 78.2 27.4 47.5 33.9 41.3 71.2 26.9 16.7

Jan    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
-------------------------------------------------------------------------------------
BENOR   -    -    -   1.6   -    -    -    -    -    -   0.3  1.4   -   0.1   -    - 
        -    -    -   0.1   -    -    -    -    -    -    -    -    -   0.3  0.1   -
BRIBE  0.5  0.8   -    -    -    -   2.8   -   6.7  0.8   -    -    -   0.3  6.7   -
CASFL   -    -   3.4   -   6.0  0.5  8.5   -    -    -    -   2.5  0.5  7.3   -    -
CRIST   -    -    -    -    -    -    -    -    -    -   6.7   -    -    -    -    -
EVAST   -    -    -    -    -    -    -    -   6.0  4.3   -   5.9   -    -    -   8.1
HINWO   -   2.9   -    -   8.7   -    -   0.8   -  12.4  1.8   -  12.2 12.0   -   1.8
KACJA   -    -    -   1.8   -   6.4  9.6  9.4 11.6 12.8  2.7 11.9   -  11.8   -    - 
       0.7  9.4  9.5   -    -    -    -    -    -  11.7  5.9  4.3   -   2.8   -    - 
        -    -    -    -    -    -   7.6  7.6  8.8  9.9  4.1  5.4  1.7 10.7  0.5  1.6
KOSDE   -    -    -    -    -    -    -    -   8.9  8.3   -    -    -    -   6.7   -
LUNRO   -    -   7.6 11.8  8.8  1.0   -   2.2   -   0.4  1.2   -    -    -    -   2.6
MOLSI   -   1.0   -    -    -    -    -   0.4   -   3.0  1.2   -   2.2  5.4   -   3.1
        -   1.2   -   1.3  5.2  1.2  2.5  4.5   -   2.4  1.0  0.1  5.4  7.8   -   2.8
       4.0  1.0   -   0.4   -    -   0.8   -   3.9   -    -   1.1  0.4   -   1.5   -
PRZDA   -    -    -    -    -    -   0.5   -   2.3   -    -  12.9   -    -   0.7   -
ROBBI   -    -    -   3.9   -    -   9.8  5.3   -   6.3  5.3   -   8.7  1.7   -   2.7
SLAST   -    -    -    -    -    -    -    -    -    -    -   4.8   -   7.2   -    -
STOEN   -    -    -    -    -    -   7.5 11.5  8.0 11.6  3.9   -   2.0 12.2   -    -
STORO   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   -    -    -    -    -    -   1.0   -   2.0   -    -    -    -    -   0.5   - 
        -    -    -    -    -    -    -    -   0.9   -    -    -    -    -    -    - 
        -    -    -    -    -    -    -    -   2.7   -    -    -    -    -    -    -
YRJIL   -    -    -    -    -    -    -    -    -    -   0.6  1.9   -    -    -    -
-------------------------------------------------------------------------------------
Sum    5.2 16.3 20.5 20.9 28.7  9.1 50.6 41.7 61.8 83.9 34.7 52.2 33.1 79.6 16.7 22.7


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

Jan    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
BENOR   -    -    -    -    -    -    -    2    -    5    -    8    5    -    - 
        -    -    -    -    -    -    -    -    -    -    -    4    4    -    -
BRIBE  12    4    3    8    -   13   10   17   11    1    2   22   22    1    -
CASFL   -    -    -    -    -   24   24    6   20    2    -    1    -    -    -
CRIST   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
EVAST   -    -    -    -   47   12    -   19    -    -    -    -    -    -    -
HINWO  46   49   66   18    -    -   68   62    7   58   17    2   47    1    4
KACJA   -    -    -    -    -   22    -   44    -    -    6    -    -   15    3 
        -    -    -    -    -    -    -    -    -    3    -    -    -    -    - 
        -    -    -    3    -    -    2    -    -    2    -    -    -    -    -
KOSDE   -    2    -    -   10    6    3    -    9    -    -    -    -    -    -
LUNRO  45         -    -    -    -    -    -    -    -   53   67   64   55   69
MOLSI   -    -    -    -    -   56   90   86    -  152   47    -    -    -    - 
        -    2  111   15    -   22   26   47    1   33   11    -    -    1    6 
        6    -  112    9   12    9   11   17    4   16    2   47   16    9    2
PRZDA   -    -   82    2    -    3    1    -    1    1    2    6    -    3    -
ROBBI   -    -    -    -    -   24   16    4    9    -    -    -    -    -    -
SLAST   -    -    -    1    -    -    -    -    -    -    -    -    -    -    -
STOEN  21    -    -    -    -    -    -    1    -    -    -    -    -    -    -
STORO   -    -    -    -    -    -    -   60    -    -    -    -    -    -    -
STRJO  11    -    8    5    -    5    4    -    -    6    5    4   12    2    - 
        -    -    -    -    -    -    -    -    -    -    -    -    9    -    - 
        -    -    -    -    -    -    -   10   13    -    -    -   16    -    -
YRJIL   -    8  114   43   58    -    -    -    -    -    -    -    9    1    -
--------------------------------------------------------------------------------
Sum   141   65  496  104  127  196  255  375   75  279  145  161  204   88   84

Jan    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
-------------------------------------------------------------------------------------
BENOR   -    -    -    6    -    -    -    -    -    -    2    4    -    1    -    - 
        -    -    -    1    -    -    -    -    -    -    -    -    -    3    1    -
BRIBE   2    3    -    -    -    -   14    -   26    4    -    -    -    1   16    -
CASFL   -    -    8    -   15    1   15    -    -    -    -    4    1   14    -    -
CRIST   -    -    -    -    -    -    -    -    -    -   11    -    -    -    -    -
EVAST   -    -    -    -    -    -    -    -    8    7    -   11    -    -    -   29
HINWO   -    3    -    -   33    -    -    3    -   33    2    -   34   26    -    5
KACJA   -    -    -    2    -    7   26   25   18   32    3   28    -   32    -    - 
        1   30   34    -    -    -    -    -    -   52    7    6    -   21    -    - 
        -    -    -    -    -    -   34   30   23   16    4   13    6   22    2    3
KOSDE   -    -    -    -    -    -    -    -   18   13    -    -    -    -    9    -
LUNRO   -    -   42   51   38    1    -   16    -    1    2    -    -    -    -   14
MOLSI   -    3    -    -    -    -    -    1    -    8    4    -    5   16    -   11 
        -    4    -    4   12    1   12   24    -    2    1    1    4    7    -    2 
       10    4    -    2    -    -    1    -   18    -    -    4    1    -    2    -
PRZDA   -    -    -    -    -    -    2    -    8    -    -   54    -    -    1    -
ROBBI   -    -    -   15    -    -   23   15    -   16   11    -   19    2    -   16
SLAST   -    -    -    -    -    -    -    -    -    -    -    8    -   12    -    -
STOEN   -    -    -    -    -    -   23   29   18   26    5    -    2   21    -    -
STORO   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   -    -    -    -    -    -    2    -    5    -    -    -    -    -   30    - 
        -    -    -    -    -    -    -    -    3    -    -    -    -    -    -    - 
        -    -    -    -    -    -    -    -    8    -    -    -    -    -    -    -
YRJIL   -    -    -    -    -    -    -    -    -    -    2    8    -    -    -    -
-------------------------------------------------------------------------------------
Sum    13   47   84   81   98   10  152  143  153  210   54  141   72  178   61   80

Sirko Molau, 2008/02/25