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(meteorobs) IMO METEOR SUMMARY REPORT, 20/21-Apr-2001, GRALE
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To: Meteor Observing Mailing List <meteorobs@atmob.org>
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Subject: (meteorobs) IMO METEOR SUMMARY REPORT, 20/21-Apr-2001, GRALE
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From: Lew Gramer <dedalus@alum.mitdot edu>
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Date: Fri, 28 Dec 2001 21:40:22 -0500
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Cc: Rainer Arlt - IMO Visual Coordinator <visual@imodot net>, NAMN <namn@atmob.org>, Local observers - Gary Jacobson <GJacobso@CH2M.com>, GDJacobson@mindspring.com, Rachel Aubuchon <raubuchon@harcourtbrace.com>, Wayne Hally <meteors@eclipsedot net>, Lew Gramer at work <dedalus@alum.mitdot edu>, Everglades Astronomical Society <bernard163@aol.com>, Prof Peter Wlasuk <FIUASTRO@aol.com>
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Delivered-To: meteorobs-mh@atmob.org
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Delivered-To: meteorobs@atmob.org
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Reply-To: meteorobs@atmob.org
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Sender: owner-meteorobs@atmob.org
Just to show that I am as good as my word, here is a report which I
neglected to turn into IMO *until now*, for this past year's Lyrid
meteor shower. Thanks to fellow observer Jeff Wilson (WILJE), and
to Larry the Lyrid Alligator (IMO code not yet assigned) for their
company during this memorable and enjoyable session last April! :)
And a warm thanks to the kind folks of EAS for suggesting our site:
I hope we'll meet you all there some future dark, clear night...
Clear skies,
Lew Gramer (IMO Code GRALE)
================================================================================
IMO METEOR SUMMARY REPORT
================================================================================
Observer's Name: Lewis J. Gramer IMO Observer Code GRALE
EVENING Date (UT): 20-Apr-2001 IMO Showers Active that Date:
MORNING Date (UT): 21-Apr-2001 SAG,LYR,PPU,ETA
Session Start Time (UT): 5:00
Session End Time (UT): 8:30
Observing Location: Fakahatchee North site, Immokolee FL USA
IMO Location Code: None
Lat 26:08:39N Lon 081:21:12W Elevation 0m
Observing Methods ("x" all that apply:)
X =Manual (pencil/paper) =Tape Recorder =Plotting Charts
=Other - describe here:
Showers Observed (Enter all IMO 3-letter or other shower mnemonics you used):
Shower Name Lyrids Eta Aquarids
IMO CODE LYR ETA
Longitude 269 323
Declination +34 -07
Radiant Size 5 5
Right Ascension 17:56 21:32
================================================================================
Summary of All Meteor Data for the Session
Per Start End CFV Teff LM F LYR ETA Spor TOTAL
1 5:00 6:18 14h+10 0.95 7.00 1.000 10 0 13 23
2 6:19 7:23 15h+10 0.96 6.96 1.000 10 0 12 22
3 7:24 8:30 18h+20 0.85 7.17 1.000 7 0 10 17
TOTALS 2.76 7.04 1.000 27 0 35 62
Average Magnitudes 3.00 0.00 3.56 3.31
================================================================================
IMO Visual Meteor Report - Lewis J. Gramer (GRALE), Night of 20-Apr-2001
LIMITING MAGNITUDES CLOUDS / OBSTRUCTIONS
Time Field Count LM Start End % Obscured Duration
5:00 10 25 7.3 0:00
5:00 11 47 6.9
5:30 10 24 7.2
5:30 11 42 6.8
6:00 11 49 6.9
6:30 24 25 7.0
7:00 11 48 6.9
7:00 24 25 7.0
8:00 5 25 7.2
8:30 5 25 7.2
8:30 13 37 7.2
BREAKS
Start End Duration Breaktime
5:20 5:25 0:05 Per Period
5:45 5:57 0:12 Period 1 0:17
6:33 6:36 0:03 Period 2 0:03
7:35 7:47 0:12 Period 3 0:12
Deadtime 0:00:10 / meteor 0:00:45 / plot
Total - logs plus meteors # Plots Per Period
Period 1 0:03:50 0
Period 2 0:03:40 0
Period 3 0:02:50 0
================================================================================
IMO Visual Meteor Report - Lewis J. Gramer (GRALE), Night of 20-Apr-2001
MAGNITUDE DISTRIBUTIONS
-3 -2 -1 0 1 2 3 4 5 6 7 TOTAL
LYR 0 0 0 2.5 1.5 6 6.5 5 5 0.5 0 27
ETA 0 0 0 0 0 0 0 0 0 0 0 0
Spor 1 0 0 0 1.5 2.5 9 12 8 1 0 35
TOTAL 1 0 0 2.5 3 8.5 15.5 17 13 1.5 0 62
TRAIN DATA - Totals Per Shower Train Data
Meteors with trains 2 Shwr Shwr Shwr
Percentage with train 3% LYR ETA Spor TOTAL
Number 2 0 0 2
Percent 7% 0%
================================================================================
GENERAL COMMENTS ABOUT SESSION - Use as many lines as needed below this one...
================================================================================
This fine site was recommended by Everglades Astronomical Society.
NOTE: There is no town near this site that I know of. It is in the Glades.
Observed tonight with Jeff Wilson (WILJE) and Larry the Lyrid Alligator!
Larry made his presence known late in the session (that is the 7:35UT
break we took!), by emitting loud mating grunts a few yards from us. :)
Only the Lyrids and ETAs were watched for during this session.
"DCV" is Distance from Center of Vision, a proposed measure of perception.
Average recorded DCV for all meteors this session: 25.517 degrees
================================================================================
INDIVIDUAL METEOR DATA
================================================================================
Time Mag Spd Shwr Conste DCV Color Trn Comments
5:03 3 3 Spor 30 CFV=10o SSW of alpha Boo
5:04 3 4 Spor 20
5:05 4.5 3 Spor 20
5:06 5.5 2 Spor 0
5:12 5 4 LYR 10
5:17 4 4 LYR 10
5:28 3 3.5 LYR 20
5:31 1 3.5 LYR Hya 30
5:33 2.5 3 Spor Vir 20
5:35 3 4 LYR Cen 30
5:36 3 5 Spor Vir 30
5:39 4.5 5 LYR Aql 40
5:41 3.5 2.5 Spor Crt 50
5:44 4 4.5 LYR E Hya 20
5:59 4 2.5 Spor Lib 20 CFV=5o E of alpha Boo
6:01 3 2 Spor Lib-Vir 10 yel-org
6:03 5 3 Spor Ser Cp 0
6:05 4.5 3 Spor
6:09 2 5 LYR Leo 40 20o long!
6:13 1 3 Spor Sex 60
6:16 5 3 Spor Vir 10
6:17 4 3.5 LYR Oph 10 GPS readings:
6:18 3 4 LYR Sco 20 26.14413N
6:21 0 4 LYR? Sct 50 81.35256W
6:25 2 3 Spor Vir 40 0m elevation
6:29 5 2 Spor Boo 10
6:41 4.5 4 LYR Lib 20
6:47 4 4 Spor Lib 30
6:48:45 -3 4 Spor Ser Cd 30 yel-org
6:50 5.5 4 Spor Lib 0
6:51 5 4 Spor 30
6:53 4 3 Spor Oph
6:55 5 4 LYR 20
6:59 3 3.5 Spor Nor 50
7:03 0 5 LYR Oph 30 yel-org +
7:06 3 4 LYR Sct 40
7:07 4 Spor
7:08 0.5 4 LYR Vir 50 25o long!
7:11 4.5 3 LYR Ser Cp 10 Just 1o long!
7:13 5 4 LYR Aql 20
7:17 2 LYR Crv 50
7:18 2 3 LYR Her 30 yel 1
7:20 4 2.5 Spor Sco 20
7:22 4.5 3 Spor Her 30 2 in 1 second!
7:22 4 3 Spor Boo 30 2 in 1 second!
7:28 4.5 5 Spor Lib 10
7:51 1.5 3 Spor Ser Cd 20 yel
7:52 3.5 4 LYR Aql 30
7:56 2 5 LYR Sco-Oph 30
7:58 3.5 3 Spor Sgr 20
8:00 3 5 Spor Sgr 30
8:02 4.5 3.5 Spor 30
8:08 2.5 4 Spor Sco 20
8:09 2 3.5 LYR Oph 10
8:12 5.5 4 LYR Aql 0
8:13 4.5 3 Spor Oph 20
8:16 4 3.5 Spor Sgr 30
8:17 3 3 Spor Aql 30
8:20 4 3 Spor Lup 20
8:23 2 4 LYR CrB 50 yel
8:24 3 3.5 LYR CrB 40
8:27 3 4 LYR Ser Cp
8:30 *** END ***
================================================================================
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