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(meteorobs) Leonids 16/17 from China
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NAMN VISUAL SUMMARY REPORT
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DATE: 1999 Nov. 16/17 BEGIN: 20:16 UT END: 21:41 UT
OBSERVER: Dan Xia
LOCATION: Long: 117 d 34' 42" East; Lat: 40 d 23' 47" North
Place: Xinglong, Hebei, CHINA Elevation: 860 m.
RECORDING METHOD: Tape Recorder
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OBSERVED SHOWERS: 3-letter code; radiant position; radiant diameter
LEO ; RA 10h 12m DEC +22 deg.;
LIN ; RA 10h 30m DEC +64 deg.;
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OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM LEO LIN SPO
20:16-21:41 7h40m,+30d 1.42 1.00 5.5 7 1 5
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TOTALS 1.42 7 1 5
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MAGNITUDE DISTRIBUTIONS:
SHOWER -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
LEO 0 0 0 0 0 0 0 1 1 2 0 3 0 0 7
LIN 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
SPO 0 0 0 0 0 0 0 0 0 1 1 2 1 0 5
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Total 0 0 0 0 0 0 0 1 1 3 2 5 1 0 13
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SKY OBSCURED:
__0__%
FROM: 20:16 UT
TO: 21:41 UT
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DEAD TIME: None
BREAKS: None
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LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM
20:18 17 10 5.5
20:29 17 10 5.5
20:46 17 10 5.5
21:08 17 10 5.5
21:19 17 11 5.9
21:33 17 10 5.5
21:39 17 10 5.5
MEAN LIMITING MAGNITUDE: 5.5
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METEOR DATA:
# TIME(UT) MAG VEL. COLOR SHOWER TRAIN MAP ACCURACY
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1 20:16 +2 4 w LEO
2 20:21 +4 5 w LEO
3 20:22 +3 4 w SPO
4 20:27 +3 5 w LIN
5 20:36 +4 5 w LEO
6 20:58 +5 3 w SPO
7 20:59 +1 4 w LEO
8 21:02 +0 3 w LEO 1s
9 21:13 +4 5 w LEO
10 21:15 +4 5 w SPO
11 21:17 +2 5 w SPO
12 21:25 +2 5 w LEO
13 21:38 +4 3 w SPO
VELOCITY (VEL.) SCALE:
0 = Stationary
1 = Very Slow
2 = Slow
3 = Medium
4 = Fast
5 = Very Fast
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REMARKS:
LIN is used to refer a possible radian from C/1999 J3. The radiant
position used here is not the one from literature, but from a position
determined from real-time observations on Nov. 11/12 by Jin Zhu et al.
(observation reports will be submitted after the Leonids observation.)
Report submitted via Jin Zhu (zj@bac.pkudot edu.cn).
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<END OF REPORT>
Original records:
# TIME(UT) SHOWER MAG SPEED TRAIN(SEC) MEM
20:16 start
FOV: 7h40m +30d
showers: LEO, LIN
LM: 17/10
01 20:16 LEO +2 4
20:18 LM: 17/10
02 20:21 LEO +4 5
03 20:22 SPO +3 4 (NTA?)
04 20:27 LIN +3 5
20:29 LM: 17/10
05 20:36 LEO +4 5
20:46 LM: 17/10
06 20:58 SPO +5 3 (NTA?)
07 20:59 LEO +1 4
08 21:02 LEO +0 3 1s
21:08 LM: 17/10
09 21:13 LEO +4 5
10 21:15 SPO +4 5
11 21:17 SPO +2 5
21:19 LM: 17/11
12 21:25 LEO +2 5
21:33 LM: 17/10
13 21:38 SPO +4 3
21:39 LM: 17/10
21:41 end humidity=85% temperature=-3 (degree C)
--
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Jin Zhu | Tel.: +86-10-62759888, 62756612 (O)
Beijing Astronomical Observatory | +86-10-62579689 (H)
Chinese Academy of Sciences | +86-314-5054767 (Schmidt dome)
P. R. China | Fax : +86-10-62765031 or 64888731
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email: zj@bac.pkudot edu.cn or jinzhu@sun.ihep.ac.cn
WWW Home Page: http://vega.bac.pkudot edu.cn/~zj
Pager: zhu_jin@263dot net (only Sub. line) OR +86-10-64256688 PIN 82333
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