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(meteorobs) May 6, 2002 Meteor Observations From California
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To: undisclosed-recipients: ;
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Subject: (meteorobs) May 6, 2002 Meteor Observations From California
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From: Robert Lunsford <lunro.imo.usa@coxdot net>
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Date: Mon, 06 May 2002 16:26:53 -0700
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User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.4.1) Gecko/20020314 Netscape6/6.2.2
After a night off I watched from Deerhorn Valley for 3 hours this
morning to see any activity from the Eta Aquarids. The sky was just as
good if not better as the city lights were obscured by low clouds. The
Eta Aquarids were again a bit disappointing as only 7 were seen. At
least there were a few bright ones tonight. The highlight of the session
was a -1 magnitude Eta Aquarid that shot overhead and high into the
western sky leaving a nice train. The zero magnitude ETA was notable as
it was a vivid orange. The moon was not a factor until the last hour of
the watch as it was blocked by the hills in the east. As I was facing
northward tonight I was surprised at the end of the watch to see low
clouds just behind me ready to obscure my sky at any moment. Since the
moon will be less of a factor tonight I plan to face toward the radiant
to see if that will help me see more Eta Aquarid activity.
May 6, 2002
0847-0947 UT 0.96 6.67 0 ETA 2 ANT 0 NPX 1 SPX 4 SPO 10 TOTAL
0947-1047 UT 0.95 6.59 2 ETA 0 ANT 0 NPX 1 SPX 3 SPO 7 TOTAL
1047-1147 UT 0.95 6.23 5 ETA 0 ANT 1 NPX 0 SPX 3 SPO 5 TOTAL
TOTALS: 2.86 6.50 7 ETA 2 ANT 1 NPX 2 SPX 10 SPO 22 TOTAL
The first column gives the period watched stated in Universal Time (UT)
which is PDT + 7 hours. The second column gives the percent of that
particular hour actually spent observing the sky. Time was lost for
plotting and data entry tonight. The third column gives the average
limiting magnitude estimated during each period. The last several
columns list the activity seen during each period. I was facing north at
an altitude of 60 degrees during the entire session. No breaks were
taken. ANT = Antihelion radiant (Sagittarids), ETA = Eta Aquarids, NPX
= Northern Apex, SPX = Southern Apex, and SPO = Sporadics (random activity).
Location: Deerhorn Valley 116 45'21" W 32 41'21" N ELE = 667m
Bortle Scale Estimate: Class 3 (Rural Sky)
Beginning Temperature/Relative Humidity: 38 F (3 C) 76%
Ending " " " 36 F (2 C) 81%
MAGNITUDES:
ETA: -1 (1) 0 (1) +1 (0) +2 (1) +3 (2) +4 (2) +5 (0) AVE: +2.14
ANT: 0 (0) +1 (0) +2 (0) +3 (1) +4 (1) +5 (0) +6 (0) AVE: +3.50
NPX: 0 (0) +1 (0) +2 (0) +3 (1) +4 (0) +5 (0) +6 (0) AVE: +3.00
SPX: 0 (0) +1 (1) +2 (0) +3 (1) +4 (0) +5 (0) +6 (0) AVE: +2.00
SPO: 0 (0) +1 (1) +2 (2) +3 (5) +4 (2) +5 (0) +6 (0) AVE: +2.80
Bob Lunsford
San Diego, CA USA
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