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(meteorobs) IMO METEOR SUMMARY REPORT, 17/18-Nov-1999, GRALE
I hope this full report is of use: note the six periods of a minute or less
when 3 or more meteors were seen, including one single-second burst of four!
Interestingly, this burst was seen more than 8 hours AFTER the global peak.
BTW, as the Comments in the report below note:
"LEO hourly counts and average magnitudes reported to NASA/Marshall Space
Flight Center, EXCLUDING the critical 10:00-10:50UT observing period!"
And also:
"What an incredible night!"
Full IMO reports for the other four nights of this LEO campaign will be
forwarded to Peter Brown, Mark Davis and Wayne Hally. If anyone else is
interested, please email me PRIVATELY and I'll forward them to you also.
Lew Gramer
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IMO METEOR SUMMARY REPORT
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Observer's Name Lewis Gramer IMO Observer Code GRALE
EVENING Date (UT) 17-Nov-1999 IMO Showers Active that Date:
MORNING Date (UT) 18-Nov-1999 NTA,STA,LEO,AMO
Session Start Time (UT): 4:23
Session End Time (UT): 10:50
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Observing Site Location Fakahatchee Strand, Everglades, FL, USA
Site Latitude 25:50 N Longitude 81:41 W Site Elevation 2m
Observing Methods ("x" all that apply:)
=Manual (pencil/paper) X =Tape Recorder =Plotting Charts
X =Other - describe here: Pencil/paper used to log LEO mags only.
================================================================================
Showers Observed (Enter all IMO 3-letter or other shower mnemonics you used):
Shower Name Leonids N Taurids S Taurids Ambig Taurids Alpha Monocerotids
3-letter Code LEO NTA STA Tau AMO
Longitude 150 061 059 111
Declination +23 +23 +16 +02
Radiant Size 3 5 5 3
Right Ascen. 10:00 04:04 03:56 07:24
================================================================================
Summary of All Meteor Data for the Session
# Start End CFV Teff LM F LEO NTA STA Tau AMO Spor TOTAL
1 4:23 4:55 05h+10 0.49 6.60 1.044 2 2 1 1 0 6 12
2 4:56 5:55 06h+20 0.98 6.60 1.154 1 0 0 1 0 8 10
3 5:56 6:55 08h+30 0.96 6.83 1.000 12 4 0 1 1 8 26
4 6:56 7:55 08h+30 0.86 7.30 1.010 24 1 1 1 6 11 44
5 7:56 8:55 09h+30 0.90 7.22 1.000 22 0 0 1 4 15 42
6 8:56 9:55 10h+50 0.92 7.22 1.000 51 0 0 0 1 24 76
7 9:56 10:50 10h+50 0.76 7.18 1.000 70 0 0 4 4 15 93
TOTALS 5.86 7.01 1.031 182 7 2 9 16 87 303
Average Magnitudes 2.25 3.14 2.50 1.06 3.34 3.25 2.58
IMO Visual Meteor Report - Lewis Gramer (GRALE), Night of 17-Nov-1999
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LIMITING MAGNITUDES CLOUDS / OBSTRUCTIONS
Time Field Count LM Start End % Obscured Duration
4:23 8 22 6.6 4:30 5:22 5% 0:52
5:56 2 22 6.4 5:23 5:26 10% 0:03
5:56 8 26 6.8 5:27 5:37 20% 0:10
6:56 4 29 7.3 5:38 5:45 40% 0:07
9:30 4 28 7.3 5:46 5:53 20% 0:07
9:30 3 33 7.1 7:30 7:40 5% 0:10
9:56 9 44 7.4
10:20 9 43 7.3
10:30 9 40 7.3
10:40 9 33 7.0
10:50 9 23 6.4
================================================================================
BREAKS
Start End Duration Breaktime
4:36 4:38 0:02 Per Period
7:20 7:25 0:05 Period 1 0:02
8:34 8:37 0:03 Period 2 0:00
9:56 10:00 0:04 Period 3 0:00
Period 4 0:05
Period 5 0:03
Period 6 0:00
Period 7 0:04
Deadtime 0:00:03 / meteor 0:00:45 / plot
Total - logs plus plots # Plots Per Period
Period 1 0:00:36 0
Period 2 0:00:30 0
Period 3 0:01:18 0
Period 4 0:02:12 0
Period 5 0:02:06 0
Period 6 0:03:48 0
Period 7 0:04:39 0
IMO Visual Meteor Report - Lewis Gramer (GRALE), Night of 17-Nov-1999
================================================================================
MAGNITUDE DISTRIBUTIONS
-8 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 TOTAL
LEO 1 1 3 3.5 2 7 8 20.5 37 44 34 14.5 3.5 179
NTA 0 0 0 0 0 0 0 1 0.5 2 3.5 0 0 7
STA 0 0 0 0 0 0 0 1 0 0 1 0 0 2
Tau 0 0 0 2 1 0 0 0 3 0.5 2.5 0 0 9
AMO 0 0 0 0 0 0 0.5 1 2.5 3.5 5.5 3 0 16
Spor 0 0 0 0 1 0 2 4 14 26.5 25 13.5 1 87
TOTAL 1 1 3 5.5 4 7 10.5 27.5 57 76.5 71.5 31 4.5 300
[NOTE: Three uncertain magnitudes, all LEOs, left out of the Distributions.]
================================================================================
TRAIN DATA - Totals
Meteors with trains: 116
Percentage with trains: 38%
Per Shower Train Data
LEO NTA STA Tau AMO Spor TOTAL
Number 97 0 0 3 2 14 116
Percent 53% 0% 0% 33% 13% 16%
================================================================================
GENERAL COMMENTS ABOUT SESSION - Use as many lines as needed below this one
Started session in bright moonlight, intermittent Cirrus and Cirrocumulus.
Start of twilight first noted at 10:30UT.
LEO hourly counts and average magnitudes reported to NASA/Marshall Space
Flight Center, EXCLUDING the critical 10:00-10:50UT observing period!
What an incredible night!
================================================================================
PER METEOR DATA:
Time Mag Spd Shwr Color Trn Comments
-------- ---- ---- ---- ------- ---- --------
04:23:00 1 STA org
04:30:00 4 NTA
04:30:00 4 NTA
04:30:00 1 3 Spor
04:30:00 3 5 Spor
04:30:00 2 LEO
04:30:00 3 LEO
04:30:00 3.5 5 Spor
04:30:00 2 Tau Simultaneous!
04:30:00 4 4 Spor Simultaneous!
04:30:00 2.5 2 Spor
04:30:00 0 4 Spor
05:26:00 2 Tau +
05:26:00 2 4 Spor
05:26:00 4 4 Spor
05:26:00 2.5 LEO Earthgrazing 40o!
05:38:00 1.5 3 Spor
05:38:00 1.5 3 Spor
05:38:00 3.5 2 Spor
05:38:00 2 2.5 Spor
05:50:00 3.5 2 Spor
05:50:00 2 1.5 Spor
05:56:00 3 Spor 3 sec, 30o long.
05:56:00 4 NTA
05:56:00 4.5 AMO
05:56:00 4 LEO
05:56:00 4.5 2 Spor
05:56:00 1.5 3 Spor +
05:56:00 2.5 NTA
05:56:00 4 3 Spor
05:56:00 3 NTA
05:56:00 2 LEO 1
06:26:26 -3 LEO yel-org 1.5
06:27:00 3.5 LEO
06:27:00 3 2.5 Spor
06:27:00 3.5 4 Spor
06:34:13 -3 Tau 1 0->1->-3, elev 20o.
06:35:00 3.5 LEO 1
06:35:00 3.5 NTA
06:35:00 1 LEO 1.5
06:35:00 1.5 LEO 1
06:35:00 3 5 Spor
06:35:00 3.5 LEO 0.5
06:35:00 2.5 5 Spor 0.5
06:51:21 -4 LEO 0.5
06:52:00 3 LEO 0.5
06:52:00 4 LEO +
06:52:00 3 LEO 1
06:56:00 3.5 LEO
06:56:00 5 LEO +
06:56:00 4 LEO 1
06:56:00 1.5 LEO 1.5
06:56:00 4 LEO
06:56:00 1 LEO 0.5
06:56:00 3.5 5 AMO 0.5
06:56:00 4 5 Spor
06:56:00 4.5 LEO
06:56:00 4 LEO
06:56:00 1 LEO 1.5
06:56:00 4 2 Spor
06:56:00 4 STA
06:56:00 4.5 3 Spor
06:56:00 3.5 3 Spor
06:56:00 4 4 Spor
06:56:00 0.5 AMO +
06:56:00 2.5 3.5 Spor
06:56:00 4 LEO
06:56:00 2.5 LEO 2
07:30:00 -5 LEO 1.5
07:30:00 2 LEO 1.5
07:30:00 -0.5 LEO 3
07:30:00 0 LEO brt grn 6
07:30:00 2 LEO
07:30:00 2 5 Spor
07:30:00 -1 5 LEO
07:30:00 3.5 AMO
07:30:00 4.5 2 Spor
07:30:00 4 LEO
07:30:00 4.5 AMO
07:30:00 1.5 AMO
07:30:00 2 LEO 2
07:30:00 4 Tau
07:30:00 5 AMO
07:30:00 3.5 LEO 1
07:30:00 3.5 LEO 1
07:30:00 3 LEO
07:30:00 3 5 Spor
07:30:00 -0.5 LEO grn-yel 4.5
07:30:00 3.5 5 Spor +
07:30:00 1 NTA
07:30:00 2 LEO 1.5
07:30:00 2 4 Spor
07:56:00 3 3 Spor
07:56:00 4.5 4 Spor
07:56:00 5 AMO
07:56:00 4 AMO
07:56:00 2 LEO 1.5
07:56:00 1.5? LEO 2
07:56:00 5 LEO
07:56:00 5 3 Spor
07:56:00 4 LEO +
07:56:00 4.5 5 Spor
07:56:00 3.5 Spor
07:56:00 1.5 LEO yel 1
07:56:00 2.5 LEO 0.5
08:10:34 -8 LEO 50 Terminal burst
08:11:00 1 LEO 4
08:11:00 2.5 LEO 0.5
08:11:00 3 LEO
08:11:00 -4 LEO 0.5
08:11:00 5 LEO
08:11:00 0.5 LEO +
08:11:00 3 3 Spor
08:11:00 -2 LEO
08:11:00 2.5 LEO +
08:11:00 4 LEO
08:11:00 2 LEO 1
08:11:00 3 Spor
08:11:00 2.5 AMO
08:11:00 4 AMO
08:11:00 3 1 Spor 1 Slow with a train!
08:11:00 2.5 4 Spor 0.5
08:11:00 2 LEO +
08:11:00 4 5 Spor
08:38:00 -2 Tau org 0.5 Loooong!
08:38:00 3.5 3 Spor
08:38:00 4 LEO
08:38:00 0.5 LEO 1
08:38:00 2 Spor Earthgrazing poss. Tau.
08:38:00 2 5 Spor 1
08:38:00 3 4 Spor
08:38:00 4 5 Spor
08:38:00 0 LEO +
08:38:00 4 LEO
08:56:00 5 4 Spor
08:56:00 4.5 LEO
08:56:00 1 LEO 1
08:56:00 4 LEO
08:56:00 3 LEO
08:56:00 1.5 LEO 1
08:56:00 1 LEO 1.5
08:56:00 2.5 LEO 1
08:56:00 2.5 LEO 2
08:56:00 2 LEO
08:56:00 2 LEO 1
08:56:00 0 LEO grn 5 Intense color.
08:56:00 3 5 Spor +
08:56:00 3 LEO 1
08:56:00 2 LEO +
08:56:00 3.5 4 Spor
08:56:00 1 LEO pal grn 2
09:10:23 -4 LEO
09:11:00 3 LEO
09:12:00 -2.5 LEO grn 3 Intense color.
09:12:00 0.5 4 Spor
09:12:00 3 LEO
09:12:00 -2 4 Spor In haze.
09:12:00 4 5 Spor +
09:12:00 4 AMO
09:12:00 4 LEO 0.5
09:12:00 5 LEO
09:12:00 3 3 Spor
09:12:00 2 LEO +
09:12:00 3? LEO
09:12:00 1 LEO 0.5
09:12:00 1.5 LEO 0.5
09:12:00 0 LEO pal grn 2
09:12:00 0.5 5 Spor yel 1
09:12:00 -0.5 LEO yel-grn 0.5
09:12:00 2.5 LEO 1
09:12:00 4.5 LEO
09:12:00 4 LEO
09:12:00 3.5 LEO
09:12:00 1 0 LEO 1
09:12:00 1 LEO grn-yel 1
09:21:27 -3 LEO 8o elevation.
09:22:00 3 LEO
09:22:00 5 4 Spor
09:22:00 4 LEO 0.5
09:22:00 6 LEO
09:22:00 5 3 Spor
09:22:00 3.5 4 Spor
09:22:00 5 3 Spor
09:22:00 1.5 5 Spor +
09:22:00 2.5 LEO 1
09:22:00 2.5 LEO 0.5
09:22:00 2.5 5 Spor
09:22:00 -1 LEO yel-grn 1
09:22:00 3.5 LEO
09:22:00 4 5 Spor
09:22:00 3 5 Spor
09:22:00 1 LEO 1
09:22:00 3 LEO
09:22:00 5 5 Spor
09:22:00 5 LEO
09:22:00 1.5 LEO +
09:22:00 3 LEO
09:22:00 2 4 Spor
09:22:00 2.5 LEO 0.5
09:22:00 3 5 Spor 0.5
09:22:00 3.5 5 Spor
09:22:00 3.5 5 Spor
09:22:00 4 5 Spor
09:22:00 3 LEO
09:22:00 4 4 Spor
09:22:00 4.5 5 Spor
09:22:00 1 LEO 0.5
09:22:00 4.5 LEO
09:22:00 3 LEO
09:22:00 4 LEO
10:00:00 3 LEO +
10:00:00 5 Spor
10:00:00 2 LEO 0.5 Nearly simultaneous.
10:00:00 1.5 LEO 1.5 Nearly simultaneous.
10:00:00 2.5 LEO +
10:00:00 2.5 LEO 2
10:00:00 4.5 5 Spor
10:00:00 6 5 Spor
10:00:00 2 AMO
10:00:00 2.5 LEO 1
10:00:00 0.5 LEO pal grn 1
10:00:00 2 Tau 40o earthgrazing Tau.
10:00:00 3.5 LEO +
10:00:00 2 LEO 1
10:00:00 3.5 AMO
10:00:00 1.5 LEO grn-blu 0.5
10:00:00 ? LEO
10:00:00 4 5 Spor 0.5 VERY fast.
10:00:00 3.5 LEO +
10:00:00 -1 LEO 1.5
10:00:00 3 LEO 0.5
10:00:00 5 LEO
10:00:00 2.5 3 Spor 1
10:00:00 1.5 LEO 1
10:00:00 3 LEO 0.5
10:00:00 4.5 LEO
10:00:00 6 LEO 2 within 1 minute.
10:00:00 4 LEO + 2 within 1 minute.
10:00:00 4.5 Spor
10:00:00 2.5 LEO +
10:00:00 2.5 LEO
10:00:00 2.5 AMO
10:00:00 -1 LEO
10:00:00 4 LEO 6 within 1 minute.
10:00:00 5 LEO 6 within 1 minute.
10:00:00 3 LEO 6 within 1 minute.
10:00:00 3 LEO 6 within 1 minute.
10:00:00 5 LEO 6 within 1 minute.
10:00:00 6 LEO 6 within 1 minute.
10:00:00 2.5 LEO 7 within 30 seconds.
10:00:00 4 LEO 7 within 30 seconds.
10:00:00 0 LEO 7 within 30 seconds.
10:00:00 3 LEO 7 within 30 seconds.
10:00:00 5.5 LEO 7 within 30 seconds.
10:00:00 4 LEO 7 within 30 seconds.
10:00:00 1.5 LEO 7 within 30 seconds.
10:00:00 3.5 LEO
10:00:00 4.5 LEO
10:00:00 4 LEO
10:00:00 3 AMO 3 within 1 minute.
10:00:00 4 LEO 3 within 1 minute.
10:00:00 5 LEO 3 within 1 minute.
10:20:00 -1 LEO
10:22:55 -3 LEO blu-grn 7 First trn "kink" so far.
10:23:00 3.5 LEO +
10:23:00 1.5 LEO 0.5 3 within 1 minute.
10:23:00 5 LEO 3 within 1 minute.
10:23:00 4 LEO + 3 within 1 minute.
10:23:00 3 5 Spor
10:23:00 3.5 Tau 3 sec, 25o long.
10:23:00 2 LEO
10:23:00 4 Tau ANOTHER earthgrazer
10:23:00 4 LEO
10:23:00 3.5 3 Spor
10:23:00 -1.5 LEO? Elev 15o.
10:23:00 4 4 Spor
10:23:00 3 LEO 2 within 1 minute.
10:23:00 2 LEO 1.5 2 within 1 minute.
10:23:00 3 5 Spor
10:23:00 5 5 Spor
10:23:00 2 LEO + 2 within 1 minute.
10:23:00 2 LEO 2 within 1 minute.
10:23:00 2.5 LEO 3 within 1 minute.
10:23:00 3 LEO 1 3 within 1 minute.
10:23:00 2 LEO 1.5 3 within 1 minute.
10:30:00 3 3.5 Spor grn Color was electric!
10:30:00 3 LEO +
10:30:00 3 LEO
10:35:00 2 LEO 1 4 within 1 second!
10:35:00 4 LEO 4 within 1 second!
10:35:00 3 LEO 4 within 1 second!
10:35:00 3 LEO 4 within 1 second!
10:35:00 5 5 Spor
10:35:00 2 4 Spor pal blu 0.5
10:35:00 3 LEO 0.5 2 within 1 minute.
10:35:00 5 LEO 2 within 1 minute.
10:40:00 3 LEO
10:40:00 1.5 LEO
10:40:00 4.5 3 Spor
10:40:00 2 LEO
10:40:00 3 LEO
10:40:00 1 LEO +
10:49:12 -3 Tau VERY long; beautiful.
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