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(meteorobs) Observation Apr 23/24 1999
Hi everyone,
After nights of cloudy skies and haze, I was able to get one good night of
viewing on April 23/24. I headed out to Casselman early enough in the
afternoon to set up my scope and then casual observe in the evening. It was
hard enough to observe with strong gusts of northerly wind! I then took a
long nap to begin meteor observing at 5:50 UT (1:50 local time). The
quarter moon was still up but limiting magnitude was already over 6.0. It
was a very transparent sky. After moonset, limiting magnitude averaged
close to 6.3 (about 6.5 near zenith).
I observed for close to 3 hours. Lyrids activity was low as usual with only
2 seen. Both Lyrids were faint. I did plot a few slow to average speed
meteors come from around Ursa Minor. Two of these were fairly bright at
magnitudes -1 and 0. The Librids (Ecliptical radiant) was not active. One
fast sporadic seem to align with the Omega Capricornids. The highlight of
the night was the very last meteor. It was an earth grazing Eta Aquarid of
magnitude +2 that shot 40 degrees in a split second! It left a 1 second
train behind.
Full reports sent to Bob Lunsford and Mark Davis at NAMN.
***************************
NAMN VISUAL SUMMARY REPORT
***************************
DATE: April 23/24 1999
BEGIN: 5:50 UT (1:50 EDT) END: 8:45 UT (4:45 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -75.063 West; Lat: 45.269 North Elevation:100m
City & Province: Casselman, Ontario, CANADA
RECORDING METHOD: talking watch/tape recorder
-----------------------------------------------------------------------
OBSERVED SHOWERS: 3-letter code; radiant position
LYR (Lyrids) 274 +34
ETA (Eta Aquarids) 328 -5
LBR (Librids)(IMO Sag) 14:55 -13
MVI (Mu Virginids) 15:10 -6
WCA (Omega Capricornids) 21:00 -22
-----------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM SPO LYR ETA
5:50-6:55 SE70 1.01 1.00 6.01 6 0 0
6:55-7:58 SE60 1.00 1.00 6.29 4 2 0
7:58-8:45 " 0.68 1.00 6.08 3 0 1
---------------------------------------------------------------
TOTALS: 2.69 13 2 1 = 16
---------------------------------------------------------------
MAGNITUDE DISTRIBUTIONS:
SHOWER -1 0 +1 +2 +3 +4 +5
SPO 1 1 0 1 3 5 2
LYR 0 0 0 0 0 1 1
ETA 0 0 0 1 0 0 0
---------------------------------
TOTALS: 1 1 0 2 3 6 3
---------------------------------
SKY OBSCURED: none
---------------------------------
Total dead time: 14 minutes
Dead time plots: 16 plots --> total time plotting: 14 minutes
Breaks: none
---------------------------------------------------------------------
REMARKS
1) FOV change to SE 80deg at 8:40 UT until end.
2) Meteor #16 was very long 40 degrees Eta Aquar.
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