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(meteorobs) Persids Aug. 12/13 2001 (Ju Zhu)
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CMON VISUAL OBSERVATION FORM - SUMMARY REPORT
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DATE: Aug. 12/13, 2001
BEGIN: 14:31 UT
END: 16:06 UT
OBSERVER: Ju Zhu
LOCATION: Long: 117d 34' 42" East; Lat: 40d 23' 47" North; Elevation: 860m.
Place: Xinglong, Hebei, CHINA
RECORDING METHOD: digital recorder
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OBSERVED SHOWERS: 3-letter code; radiant position; radiant diameter
PER ; RA 03h 04m, DEC +58 deg.;
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OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM PER SPO
14:31-16:06 RA 20h40m DEC +45d 1.20 1.1 5.4 39 16
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TOTALS 1.20 39 16
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MAGNITUDE DISTRIBUTIONS:
SHOWER -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 TOTAL
PER 1 0 0 0 0 7 5 4 3 1 3 7 7 1 39
SPO 0 0 0 0 0 0 0 0 0 2 4 4 6 0 16
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Total 1 0 0 0 0 7 5 4 3 3 7 11 13 1 55
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Duration (UT) Percentage(%)
14:31-16:06 10
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DEAD TIME: NONE
BREAKS: 15:06-15:07, 15:11-15:30, 15:38-15:40, 15:46-15:47.
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LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM
14:33 14 8 5.06
14:39 14 9 5.39
14:54 14 9 5.39
15:08 14 9 5.39
15:32 14 9 5.39
15:45 14 9 5.39
MEAN LIMITING MAGNITUDE: 5.4
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original records:
# TIME(UT) SHOWER MAG VEL. TRAIN COLOR MAP ACCURACY MEM
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14:31 start
01 14:32 PER -3 3
02 14:32 PER -1 3
03 14:33 PER +3 4
14:33 LM: #14/08
14:39 LM: #14/09
04 14:41 SPO +4 2
05 14:42 SPO +4 3
06 14:43 PER -1 3 0.5 s
07 14:45 PER +2 3
08 14:45 SPO +2 0
09 14:46 PER -2 3
10 14:47 PER +1 3
11 14:50 PER -3 3
12 14:51 PER +4 4
13 14:54 PER +4 4
14 14:54 SPO +2 3
14:54 LM: #14/09
15 14:57 PER -3 3
16 14:57 PER +4 3
17 14:58 PER +0 4
18 15:00 PER +3 3
19 15:00 PER +0 4
20 15:00 PER +3 4
21 15:00 PER -2 4
22 15:00 PER -1 4
23 15:03 PER +2 3
24 15:03 SPO +3 3
25 15:05 PER -2 3 0.2 s
26 15:05 PER -1 4
27 15:05 PER +0 3
15:06 recorder failure
28 15:07 PER +5 4
15:07 recorder failure
15:08 LM: #14/09
29 15:10 PER +4 3
15:11 break
15:31 resume observation
15:32 LM: #14/09
30 15:32 PER +3 3
31 15:32 PER +3 3
32 15:33 PER +3 3
33 15:33 PER +4 3
34 15:35 PER -3 4
35 15:37 PER +3 3
36 15:37 SPO +3 3
37 15:38 SPO +2 2
15:39 recorder failure at least two meteors failed to recorded
38 15:41 PER -8 4 3 s green, sparkle at end
39 15:41 PER -2 5
40 15:42 SPO +1 3
41 15:45 SPO +1 3
15:45 LM: #14/09
15:46 break
15:48 resume
42 15:48 PER +2 2
43 15:48 SPO +4 4
44 15:54 SPO +4 3
45 15:56 SPO +2 3
46 15:58 PER -2 3
47 15:58 PER -3 4 fuzzy
48 15:58 PER -3 3
49 16:00 PER +4 3
50 16:00 PER -3 3
51 16:01 SPO +3 4
52 16:02 SPO +4 4
53 16:04 SPO +3 3
54 16:04 PER +4 3
55 16:05 SPO +4 3
16:06 end
VELOCITY (VEL.) SCALE:
0 = Stationary
1 = Very Slow
2 = Slow
3 = Medium
4 = Fast
5 = Very Fast
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REMARKS:
Report was recorded and compiled with help of Jin Zhu.
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<END OF REPORT>
--
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Jin Zhu | Tel.: +86-10-62751286 (O)
National Astronomical Observatories | +86-314-5520267 (Schmidt dome)
Chinese Academy of Sciences | Pager: +86-10-96301682333
P. R. China | Fax : +86-10-62765031
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Room 2919, No. 2 Science Building, CAS-PKU Beijing Astrophysics Center,
Peking University, Beijing 100871, P. R. CHINA.
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email: zj@bac.pkudot edu.cn http://vega.bac.pkudot edu.cn/~zj
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