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(meteorobs) Meteor Report June 15/16, 1996 GRALE
METEOR VISUAL OBSERVING FORM
SUMMARY REPORT
DATE: June 15/16 1996 BEGIN: 0540UT END: 0743UT
OBSERVER : GRALE (Lewis J. Gramer)
LOCATION : Long: 69o 50' 20" W; Lat: 43o 56' 30" N
City & State: Bath, ME, USA; Elevation: 200'
RECORDING METHOD: Tape Recorder and Plotting
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OBSERVED SHOWERS: Use 3 letter Codes
SAG 270 -23
Non-IMO: (see Remarks)
JLY 278 +35
XDR? 274 +54
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OBSERVING PERIODS:
PERIOD(UT) FIELD LM Teff F Sag Jly Xdr Spor
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0540-0743 19h+50 6.66 1.72h 1.0 3 (1) (1) 18
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MAGNITUDE DISTRIBUTIONS:
SHOWER -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
Sag 1.5 .5 1 3
Spor 1 1 3 1 3.5 3 5 .5 18
Total: 1 1 3 1 5 3.5 5 1.5 21
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SKY OBSCURED:
%5 FROM: 0600UT TO: 0608UT 00h08m
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DEAD TIME: 00h15m MEAN MAGNITUDES
BREAKS : SPOR = +3.03
0639UT-0644UT SAG = +4.17 (3 meteors)
TOTAL : 00h05m
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LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM (mins in effect-see Remarks)
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0553 6 20 6.6 22
0553 7 26 6.9 22
0623 5 19 6.9 35
0623 13 31 7.0 35
0655 6 25 6.7 23
0655 7 25 6.8 23
0655 14 31 6.6 23
0710 7 25 6.8 21
0710 18 17 6.4 21
0731 5 10 6.2 22
0731 6 13 6.3 22
0731 14 20 6.4 22
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MEAN LIMITING MAGNITUDE: 6.66
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METEOR DATA
PLOT
# TIME (UT) SPEED TRAIN ACCU-
H min MAG 1-5 COLOR SHWR SEC MAP # RACY
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1 0542 4 3 Spor 3 1*
2 0546 1 4 dull org Spor 6 2
3 0548 1 4 pale grn Spor 6 1
4 0555 4.5 2.5 Spor 3 2
5 0556 5 3 Spor 6 2
6 #### NO METEOR 6! GAP IN SEQUENCE.
7 0601 -1 3 pale org Spor 6 2
8 0612 6 3.5 Sag 6 2 *
9 0614 3 3 Spor 3 1
10 0616 5 2.5 Spor 6 2
11 0618 2 3 pale grn Spor 6 1
12 0620 3 4 Spor 3 2
13 #### NO METEOR 13! GAP IN SEQUENCE.
14 0645 4.5 2.5 Spor 6 1
15 0655 3.5 2.5 Sag 6 1 *
16 0702 5 3.5 Spor 6 1
17 0705 3 1.5 Sag (no plot)
18 0707 4.5 4 Spor 3 3
19 0709 5.5 2 Spor 3 1
20 0715 3 3 Spor 6 1
21 0720 0 3 brit org Spor 9 1 *
22 #### NO METEOR 22! GAP IN SEQUENCE.
23 0723 3.5 3.5 Spor 3 1
24 #### NO METEOR 24! GAP IN SEQUENCE.
25 #### NO METEOR 25! GAP IN SEQUENCE.
26 #### NO METEOR 26! GAP IN SEQUENCE.
27 0741 1 1.5 pale org Spor <1 3 1 *
## 0743 ENDED SESSION
* - Meteors marked by asterisks have additional data
Remarks below.
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VELOCITY SCALE: PLOT ACCURACY:
0 = Stationary 1 = Accurate Plot
1 = Very Slow 2 = Normal Plot
2 = Slow 3 = Generalized Direction
3 = Medium
4 = Fast
5 = Very Fast
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REMARKS: Seeing throughout session was medium-poor.
Dead time of 45 seconds was deducted per plotted meteor.
Meteor #1 was noted as possibly from a new radiant near Xi Dra
(non-IMO shower). Length and path are close matches, and speed
is close to acceptable range (medium vs. very fast).
Meteor #8 is a somewhat questionable SAG due to velocity.
Meteor #15 is a questionable SAG due to path length.
Meteor #21 was noted as a possible JLY (non-IMO shower).
Meteor #27 was a flare meteor, brightening from mag 3 to mag 2
over 80% of its path and suddenly flashing to 1 at the end.
The "mins in effect" column in the limiting magnitude estimate table
is merely designed as a computational aid for this observer (and as
a later consistency check for users of the form) as to how much time
the given magnitude estimate(s) were in effect. It can be ignored in
analyzing the estimates themselves.