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(meteorobs) Observation August 22/23 2003
Hi all,
Here's a meteor report from late August. I had completely forgot to
post this one out, so please pardon the delay.
It was an enjoyable morning at a new location just west of Ottawa. The
sky conditions were excellent with clear transparent skies and the
limiting magnitude reached 6.5.
The meteor activity was very enjoyable and better than expected for a
night away from the major showers, with as many as 31 meteors in two
hours TEFF (effective time). Sporadics made up most of the activity,
but there was a few North Iota Aquarids, late Perseids and one early
Aurigid.
Highlights included the 6:16UT 3rd mag North Iota Aquarid that had a
very gradual, almost nebulous fade out. Also at 6:39UT, when a
zero-mag north apex sporadic shot a very swift path and left a 3 sec
train.
Full data below for NAMN... Clear skies.
Pierre Martin
Ottawa, Ontario
DATE: August 22/23 2003
BEGIN: 0555 UT (0155 EDT) END: 0805 UT (0405 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -76 29' West; Lat: 45 23' North Elevation: 50m
City & Province: Bootland Farm (Arnprior), Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, cord align method
-----------------------------------------------------------------------
OBSERVED SHOWERS:_____________________________________radiant position
KCG (Kappa Cygnids)____________________________1912 +60
NIA (North Iota Aquarids)______________________2204 -05
NDA (North Delta Aquarids)_____________________2308 -02
PER (Perseids)_________________________________0416 +60
AUR (Alpha Aurigids)___________________________0500 +42
ANT (sporadics from the antihelion)____________2300 -05
NPX (sporadics from the north apex)____________0400 +35
SPX (sporadics from the south apex)____________0400 +05
SPO (random sporadics)
-----------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)__FIELD___Teff__LM_____NIA_NDA_ANT_KCG_PER_AUR_NPX_SPX_SPO
0555-0659__2304+15__1.00__6.48____3___0___0___0___2___0___2___0___6
0659-0805__0018+11__1.06__6.40____0___0___1___0___0___1___4___2___10
TOTALS:_____________2.06__________3___0___1___0___2___1___6___2___16 =
31
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). The fourth column (F) is a value for obstructions in the field of
view such as clouds (1.00 = 100% clear skies). The next 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
_____0__+1__+2__+3__+4__+5_____AVE
SPO__1___2___3___8___6___4____+3.16
NIA__0___0___0___2___0___1____+3.66
PER__0___0___1___0___1___0____+3.00
ANT__0___0___0___0___1___0____+4.00
AUR__0___0___0___0___1___0____+4.00
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
------------------------
Dead time: 0.5 min break + 5.89 min (plots) = 6.39 min.
Breaks (UT): 6:05 (30sec)
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