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(meteorobs) Perseids from China [4] -- The peak night, the same fireball, the other observer, -10mag.
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CMON VISUAL OBSERVATION FORM - SUMMARY REPORT
=============================================
DATE: Aug. 12/13, 2001
BEGIN: 12:36 UT
END: 16:21 UT
OBSERVER: Huan Meng IMO code: MENHU
LOCATION: Long: 117d 34' 42" East; Lat: 40d 23' 47" North; Elevation: 860 m.
Place: Xinglong, Hebei, CHINA
RECORDING METHOD: tape recorder
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OBSERVED SHOWERS: 3-letter code; radiant position; radiant diameter
PER RA 03h 04m DEC +58 deg.;
KCY RA 18h 56m DEC +58 deg.;
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OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM PER KCY SPO
12:45-14:05 RA 18h40m DEC +40 deg 1.22 1.05 4.5 11 3 14
15:53-16:22 RA 22h00m DEC +40 deg 1.32 1.05 4.6 30 3 11
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TOTALS 2.54 41 6 25
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MAGNITUDE DISTRIBUTIONS:
SHOWER -10 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
PER 1 0 0 2 3 9 6 4 1 8 5 2 0 0 41
KCY 0 0 0 0 0 0 0 1 1 1 2 1 0 0 6
SPO 0 0 0 0 0 2 3 4 5 5 3 3 0 0 25
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Total 1 0 0 2 3 11 9 9 7 14 10 6 0 0 72
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(Remarks: All the data observed in bad conditions after 16:22 are excluded
in
these tables; if you still need to use them, please see the original report
below.)
SKY OBSCURED:
Duration (UT) Percentage(%)
12:36-13:47 5
14:37-16:55 5
(16:55-17:00 20
17:00-17:05 15)
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DEAD TIME: None
BREAKS: (To see the original records below)
----------------------------------------------------------------------------
LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM
12:58 14 4 4.65
12:54 13 5 4.41
MEAN LIMITING MAGNITUDE: 4.5
STAR STAR
TIME AREA COUNT LM
14:41 13 5 4.41
15:49 14 4 4.65
16:03 14 4 4.65
(16:22 14 2 2.49)
MEAN LIMITING MAGNITUDE: 4.6
----------------------------------------------------------------------------
Original records:
# TIME(UT) SHOWER MAG VEL. TRAIN COLOR MAP ACCURACY MEM
------------------------------------------------------------------
12:36 Start
01 12:36 PER -1 4
12:36 Sky Obscurd 5%
02 12:44 KCY +3 2
03 12:27 PER +3 3
04 12:52 SPO +2 5
05 12:53 SPO +4 5
06 12:55 PER +2 3
07 12:56 SPO +3 5
12:58 LM #14/4, LM=4.65
08 12:59 SPO +2 2
09 13:02 PER +2 4
10 13:04 SPO -1 4
13:07 Break time start
13:09 Break time end
11 13:09 SPO +0 3
12 13:09 SPO -1 4
13 13:10 SPO -2 3
14 13:11 PER +2 5
15 13:12 SPO +1 2
16 13:17 SPO +1 3
17 13:19 KCY +2 2
18 13:19 PER -2 3
19 13:23 PER +4 5
20 13:26 PER -1 4
21 13:26 PER +3 3
22 13:27 SPO +3 2
13:27 Break time start
13:29 Break time end
13:29 LM #13/5, LM=4.41
23 13:34 SPO +4 5
24 13:35 PER -2 4 1s
25 13:39 SPO +3 3
26 13:40 KCY +0 3
27 13:46 PER -1 2
28 13:46 SPO +2 2
13:47 End
14:37 Start
14:41 Sky Obscured 5%
01 14:41 KCY +4 5
14:41 LM #13/5, LM=4.41
02 14:45 PER +3 3
03 14:45 PER +4 5
04 14:48 PER -2 3 1s
05 14:50 PER -3 3 Orange
06 14:52 SPO +4 2
07 14:54 PER +2 3
08 14:54 KCY +3 2
09 14:55 PER +3 2
10 14:57 SPO +0 0
11 14:57 PER -2 3 2s
12 14:59 PER +2 5
13 15:01 PER +0 3
14 15:01 SPO +1 2
15 15:01 PER -1 5
16 15:03 PER +2 2
17 15:04 SPO +1 2
18 15:05 PER -3 5 5s
19 15:05 SPO +2 1
20 15:06 PER -2 5
21 15:06 PER +0 5
22 15:09 PER +3 4
23 15:11 PER +2 4
?? 15:14 PER ?? 5 Broken record
15:14 Records broken start
15:40 Records broken end
24 15:40 SPO +0 1
25 15:40 PER -2 4
26 15:42 PER -10 4 10s Org&Whi It detonated in the
sky and was heared
like a train after
appearing about 200
seconds.
27 15:42 PER +0 5
28 15:47 SPO +0 3
29 15:48 SPO -2 5
30 15:49 KCY +1 3
15:49 LM #14/4, LM=4.65
31 15:49 PER -1 3
32 15:56 SPO -1 4
33 15:57 PER -2 5
34 15:58 PER -3 4 2s White
35 15:59 SPO +1 3
36 15:59 PER -1 4
37 15:59 PER -2 3
38 16:01 PER -2 4 1s
16:03 LM #14/4, LM=4.65
39 16:04 SPO +2 0
40 16:13 PER +2 2
41 16:14 PER -4 3 1s Blu&Whi
42 16:17 PER -4 4 3s Yellow double trails
43 16:18 PER +0 5
44 16:21 PER +1 5
(45 16:22 LM #14/2, LM=2.49
46 16:23 SPO +2 3
47 16:35 SPO +2 4
58 16:35 SPO +2 2
49 16:43 SPO +2 2
50 16:45 SPO -1 4
51 16:48 PER -1 ? Yellow
52 16:52 PER +1 3
16:55 Sky Obscured 20%
17:00 Sky Obscured 15%
53 17:02 SPO +1 1
17:05 End)
VELOCITY (VEL.) SCALE:
0 = Stationary
1 = Very Slow
2 = Slow
3 = Medium
4 = Fast
5 = Very Fast
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REMARKS:
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<END OF REPORT>
All best wishes and Clear skies!
Huan Meng <meteorobs_menhu@hotmail.com>
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