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(meteorobs) Geminids from Belgium (VANMC)

Visual observing report - Summary Report
 
 
day : 08-09    Month : 12    Year : 2002   
begin : 22.20 UT    end : 05.20 UT
Location : Ellezelles / Belgium    long. 3.38 E    Lat. 50.43 N
Observer : Vandeputte Michel    IMO code : VANMC
 
Observed Showers :
 
Geminids
Chi Orionids
S Hydrids
Dec Monocerotids
 
 
Interval analyse
 
Period           Teff    F        LM    Gem    Xor    Hyd    Mon    Spor
 
22.20-23.20    1.00    1.00    6.40    4        2        0        0        10
23.20-00.20    1.00    1.00    6.40    2        1        1        1        10
00.20-01.20    1.00    1.00    6.40    5        2        1        1        11
01.20-02.20    1.00    1.00    6.50    5        1        0        1        13
02.20-03.20    1.00    1.00    6.50    0        0        0        1        15
03.20-04.20    1.00    1.00    6.50    3        1        1        0        18
04.20-05.20    1.00    1.00    6.60    1        0        0        0        17
 
22.20-05.20    7.00                        20        7        3        4        94
 
total meteors : 128
 
 
Magnitude distributions
 
GEM    -2(0)-1(0)+0(0)+1(3)+2(5)+3(9)+4(3)+5(0) mean 2.60 N ~ : 0
XOR     -2(0)-1(0)+0(0)+1(1+2(1+3(3)+4(2)+5(0) mean 2.86 N~ :0
MON    -2(0)-1(0)+0(0)+1(0)+2(1)+3(1)+4(2)+5(0) mean 3.25 N ~ : 0
HYD     -2(0)-1(0)+0(0)+1(0)+2(0)+3(1)+4(2)+5(0) mean 3.67 N ~ : 0
 
Spor    -2(1)-1(0)+0(2)+1(3)+2(8)+3(29)+4(34)+5(17)mean 3.46 N~: 6
 
 
Remarks
 
-already nice Geminid activity ; 5/hour.
-high sporadic rates ;  main sources : Apex (Leo), Big dipper and below the "head" of Hydra (not the S Hydrid radiant). Also the sporadics came in little "bursts" like for example the Geminids and perseids during the maximum night.
-Venus and Mars converged just before dawn
-Winter finally arrived in Belgium, thanks to a severe High pressure system above Scandinavia and Russia ; -5.8°C with a strong and 
very cold wind from eastern directions.
 
 
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day : 09-10    Month : 12    Year : 2002   
begin : 22.00 UT    end : 23.25 UT
Location : Ellezelles / Belgium    long. 3.38 E    Lat. 50.43 N
Observer : Vandeputte Michel    IMO code : VANMC
 
Observed Showers :
 
Geminids
Chi Orionids
S Hydrids
Dec Monocerotids
 
 
Interval analyse
 
Period           Teff    F        LM    Gem    Xor    Hyd    Mon    Spor
 
22.00-23.25    1.42    1.00    6.50    2        1        1        2        11
 
total meteors : 17
 
 
Magnitude distributions
 
GEM    +1(0)+2(0)+3(2)+4(0)+5(0) Mean 3.00    N~ : 0
MON    +1(0)+2(1)+3(0)+4(0)+5(0) Mean 2.00    N~ : 0
XOR     +1(1)+2(0)+3(0)+4(0)+5(0) Mean 1.00    N~ : 0
HYD     +1(0)+2(0)+3(0)+4(1)+5(0) Mean 4.00    N~ : 0
 
Spor    +1(0)+2(1)+3(2)+4(6)+5(2) Mean 3.82    N~ : 0
 
 
Remarks
 
-short observing session (SC field covered the night sky after 23.30 UT) -7.5°C.
 
 
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day : 10-11    Month : 12    Year : 2002   
begin : 21.50 UT    end : 05.20 UT
Location : Ellezelles / Belgium    long. 3.38 E    Lat. 50.43 N
Observer : Vandeputte Michel    IMO code : VANMC
 
Observed Showers :
 
Geminids
Chi Orionids
S Hydrids
Dec Monocerotids
 
 
Interval analyse
 
Period           Teff    F        LM    Gem    Xor    Hyd    Mon    Spor
 
21.50-22.50    1.00    1.00    6.50    7        2        0        0        15
22.50-23.50    1.00    1.00    6.50    4        0        1        1        7
23.50-00.50    1.00    1.00    6.50    8        0        2        1        12
00.50-01.50    1.00    1.00    6.50    4        1        1        0        15
01.50-02.50    1.00    1.00    6.50    7        1        0        0        17
02.50-03.50    1.00    1.00    6.50    6        0        1        2        11
03.50-04.50    1.00    1.00    6.50    6        0        1        0        17
04.50-05.20    0.50    1.00    6.50    2        0        0        0        7
 
21.50-05.20    7.50                        44       4        6        4        101
 
total meteors : 159
 
 
Magnitude distributions
 
GEM    -6(1)-1(0)+0(0)+1(1)+2(13)+3(20)+4(9)+5(0) Mean 2.80 N~ : 3
MON    -2(0)-1(0)+0(0)+1(0)+2(1)+3(0)+4(2)+5(1)    Mean 3.75 N~ : 1
HYD     -2(0)-1(0)+0(0)+1(0)+2(2)+3(3)+4(1)+5(0)    Mean 2.83 N~ : 3
XOR     -2(0)-1(0)+0(0)+1(0)+2(2)+3(2)+4(0)+5(0)    Mean 2.50 N~ : 0
 
Spor    -2(1)-1(1)+0(0)+1(1)+2(8)+3(30)+4(48)+5(12) Mean 3.52 N~:7
 
 
Remarks
 
-rising Geminid activity ; up to 8 members/hour.Mostly faint stream members. One big exception : at 04.25 UT I noticed an at least -6 (possibly brighter ?) Geminid Fireball that lifted up the whole sky for a second. She left a 10 s blue smokey persistent train. Awesome !
-Cold conditions ; -7.3°C at the end of this session.
 
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11-12/12 ; active front (ice rain !)
12-13/12 ; fog
13-14/12 ; a 1500 km last minute crash action, together with some DMS members, to see something of the Geminid maximum was not enough to get back the clear frosty skies. In Western Germany we reached the clear skies in Bremen ; but the front moved almost total
unexpectedly further to northeaster directions. We lost the Geminids and the battle against the clouds and fog. Besides it became to dangerous on the roads (glazed frost !!).
14-15/12 : new active frontal system moved into our country..through some holes just before dawn, I observed a couple of Geminids. Just for fun...
 
 
That was all,
 
Up to an Ursid Outburst and a great Quadrantid return !
 
 
Michel Vandeputte
VVS Belgium - meteor section
Dutch Meteor Society
 
 
 
 
 
 
 
 
 
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