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(meteorobs) Observation December 12/13 2002
Here are the details for my December 12/13 observations...
The peak night is a wash-out here. Best of luck to everyone else!!
Pierre Martin
Ottawa, Ontario
DATE: December 12/13 2002
BEGIN: 0700 UT (0200 EST) END: 0858 UT (0358 EST)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -76.0669 West; Lat: 45.0453 North Elevation: 50m
City & Province: Blacks Corners, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder - cord align method
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OBSERVED SHOWERS:_______________________________________radiant position
GEM (Geminids)_________________________________0728 +33
ANT (antihelion source)________________________0632 +23
MON (Monocerotids)_____________________________0656 +08
HYD (Sigma Hydrids)____________________________0840 +01
napx (sporadics from the north apex)___________1132 +18
sapx (sporadics from the south apex)___________1132 -12
SPO (random sporadics)
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OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)__FIELD____Teff__LM____SPO_GEM_ANT_MON_HYD_napx_sapx
0700-0806___0746+18__0.99__6.19__4___31__2___1___1____1____0
0806-0858___0843+21__0.83__6.10__6___33__0___0___0____1____1
TOTALS:______________1.82________10__64__2___1___1____2____1 = 81
The first column (Period UT) refers to observing periods broken down
as close as possible to one hour of true observing, in Universal
Time. The second column (Field) is the area in in the sky where I
centered my field of view. The third column (TEFF) represents
effective observing time (corrected for breaks or any time I did not
spent looking at the sky). One hour = 1.00 teff. The fourth column
(LM) is the average naked eye limitimg magnitude, determined by
triangle star counts. All following columns indicate the number of
meteors for each shower observed.
------------------------
MAGNITUDE DISTRIBUTIONS:
SHOWER
______-8__-7__-6__-5__-4__-3__-2__-1__+0__+1__+2__+3__+4__+5_____AVE
SPO____1___0___0___0___0___0___0___0___0___0___3___3___4___2____+2.54
GEM____0___0___0___0___1___0___0___2___3___6__15__18__13___6____+2.59
ANT____0___0___0___0___0___0___0___0___0___0___1___1___0___0____+2.50
MON____0___0___0___0___0___0___0___0___0___1___0___0___0___0____+1.0
HYD____0___0___0___0___0___0___0___0___0___0___0___1___0___0____+3.0
Note: Magnitude scale is to determine the brightness of sky objects.
Magnitude -8 is comparable to a quarter moon, magnitude -4 with the
planet Venus, magnitude -1 with the brightest star Sirius, magnitude
+2 to +3 with most average naked eye stars and magnitude +6 to +7 are
the faintest stars the naked eye can see under typical dark
conditions. A meteor of at least magnitude -3 is considered a
fireball. The above table contains the magnitudes from all observed
meteors, and the average (last column) for showers.
------------------------
SKY OBSCURED (FOV): None
Corresponding F value: 1.00 for this session.
------------------------
Dead time:
8.90 minutes used for breaks.
Breaks (UT): 7:08(30sec), 7:13(30sec), 7:21(15sec), 7:32-7:37,
7:59(10sec), 8:10(10sec), 8:45(20sec), 8:47-8:48, 8:53-8:54
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