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(meteorobs) Observation June 27/28 2003
Here is my meteor observations for June 27/28, 2003
Although no JBOs were seen in a little over 4 hours TEFF (effective
time), the highlight for me was to spot the terminal flash from a
magnitude -4 sporadic that appeared low in the north. It left a 6
seconds long persistent train, and was very short - only about 3
degrees long.
Soem of the active radiants were not observed due to my field of view
shifted away from them, or because they were still below the horizon.
For the entire session I faced the western sky toward the JBO
radiant. The skies were crystal clear...
Clear skies,
Pierre Martin
Ottawa, Ontario
DATE: June 27/28 2003
BEGIN: 0300 UT (2300 EST) END: 0730 UT (0330 EST)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -75.063 West; Lat: 45.269 North Elevation: 50m
City & Province: Casselman, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder - plotting method
-----------------------------------------------------------------------
OBSERVED SHOWERS:_______________________________________radiant position
JBO (June Bootids)_____________________________1456 +47
ANT (antihelion source - Sagittarids)__________1928 -21
TOP (Theta Ophiuchids)_________________________1640 -11
TAQ (Tau Aquarids)_____________________________2248 -12
CET (Tau Cetids________________________________0144 -11
napx (sporadics from the north apex)___________0028 +18
sapx (sporadics from the south apex)___________0028 -12
SPO (random sporadics)
-----------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)__FIELD____Teff__LM____SPO_JBO_TOP_ANT_TAQ_CET_napx_sapx
0300-0405__1416+46__1.06__6.34___4___0___2___/___/___/____/___/
0414-0513__1502+40__1.01__6.47___3___0___0___1___/___/____/___/
0521-0620__1609+36__0.98__6.43___8___0___0___0___/___/____0___/
0628-0730__1641+36__0.98__6.12___4___0___0___1___0___/____2___/
TOTALS:_____________4.03________19___0___2___2___0___/____2___/ = 25
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
______-4__-3__-2__-1___0__+1__+2__+3__+4__+5_____AVE
SPO____1___0___0___0___1___2___3___4___6___4____+2.86
ANT____0___0___0___0___0___0___1___1___0___0____+2.50
SAG____0___0___0___0___0___0___0___0___2___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
Corresponding F value: 1.00 for this session.
------------------------
Dead time: 5 minutes (1.16 min for plots)
Breaks (UT): 3:02 (30sec), 4:05-4:14, 4:20 (30sec), 5:13-5:21,
6:20-6:28, 7:09-7:12
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