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(meteorobs) DCA observation, FANYU



Just a quick comment... I observed DCA during the Jan. 7/8 night with
Yuwei Fan and Dan Xia, and we covered a whole night under very good weather.
I only made 1 hours observation before dawn and only saw one DCA. But it
seems that both of them saw higher rates during two very short periods. 
Those should be covered also by vedio observations for about 4.5 hours 
(second half of the night). We'll try to make our visual reports as soon 
as possible. We may have no time at this moment to watch for the vedio
result.

I'll try to observe DCA again on Jan. 11/12 to Jan. 17/18, if weather
permits.

Clear skies, Jin

=============================================
CMON VISUAL OBSERVATION FORM - SUMMARY REPORT
=============================================
DATE: Jan. 7/8, 2002
BEGIN: 12:30  UT
END: 19:00  UT
OBSERVER: Yuwei Fan                                IMO observer code: FANYU
LOCATION: Long: 117d 34' 42" East; Lat: 40d 23' 47" North; Elevation: 860m.
Place: Xinglong, Hebei, CHINA                          IMO site code: 30015
RECORDING METHOD: Tape recorder
----------------------------------------------------------------------------
OBSERVED SHOWERS: 3-letter code; radiant position; radiant diameter
                   DCA ; RA 08h 40m  DEC +20 deg.; 20 deg
----------------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen;    / = shower not watched.
PERIOD(UT)         FIELD             Teff    F        LM     DCA  SPO
12:30-13:30  RA 6h30m DEC +40 deg   1.00   1.00      6.0      3    7
13:30-14:30  RA 6h30m DEC +40 deg   1.00   1.00      6.0      0    4
16:35-17:35  RA10h30m DEC +40 deg   1.00   1.00      6.0      8    4
17:35-19:00  RA10h30m DEC +40 deg   1.25   1.00      6.0      9    7
-----------------------------------------------------------------------
TOTALS                              4.25             6.0     20    22
-----------------------------------------------------------------------
MAGNITUDE DISTRIBUTIONS:
12:30-13:30
SHOWER   -7  -6  -5  -4  -3  -2  -1  0  +1  +2  +3  +4  +5  +6  TOTAL
DCA       0   0   0   0   0   1   1  0   1   0   0   0   0   0    3
SPO       0   0   0   0   0   0   0  1   0   0   1   4   1   0    7
13:30-14:30
SHOWER   -7  -6  -5  -4  -3  -2  -1  0  +1  +2  +3  +4  +5  +6  TOTAL
DCA       0   0   0   0   0   0   0  0   0   0   0   0   0   0    0
SPO       0   0   0   0   0   1   1  0   1   0   1   0   0   0    4
16:35-17:35
SHOWER   -7  -6  -5  -4  -3  -2  -1  0  +1  +2  +3  +4  +5  +6  TOTAL
DCA       0   0   0   0   0   0   0  0   1   1   3   2   1   0   8
SPO       0   0   0   0   0   0   0  0   0   0   1   3   0   0   4
17:35-19:00
SHOWER   -7  -6  -5  -4  -3  -2  -1  0  +1  +2  +3  +4  +5  +6  TOTAL
DCA       0   0   0   0   0   1   0  0   1   1   1   4   1   0   9
SPO       0   0   0   0   0   0   0  0   0   1   3   3   0   0   7
-----------------------------------------------------------------------
Total     0   0   0   0   0   3   2  1   4   3  10  16   3   0   42
-----------------------------------------------------------------------
SKY OBSCURED:
Duration (UT)   Percentage(%)
12:3-19:00          0
----------------------------------------------------------------------------
DEAD TIME: 0 s
BREAKS: 14:30-16:35
----------------------------------------------------------------------------
LIMITING MAGNITUDE:
          STAR      STAR
TIME      AREA      COUNT     LM
12:30       17       16       6.23
12:38       17       14       6.09
14:01       17       13       5.99
14:25       17       13       5.99
16:35       17       13       5.99
16:45       17       15       6.11
17:23        4       11       6.20
18:02        4        8       5.75
18:56        4        8      5.75
MEAN LIMITING MAGNITUDE: 6.0
----------------------------------------------------------------------------
Original records:
#      TIME(UT)  MAG   VEL.  SHOWER    TRAIN  COLOR  MAP  ACCURACY  MEM
---------------------------------------------------------------
1 12:39 -2 3 DCA
2 12:41 +4 2 SPO
3 12:46  0 3 SPO
4 12:46 -1 2 DCA
5 12:54 +1 3 DCA
6 12:56 +3 5 SPO
7 13:13 +4 3 SPO
8 13:17 +4 4 SPO
9 13:20 +5 3 SPO
10 13:33 +4 3 SPO
11 14:01 -2 1 SPO
12 14:11 +1 3 SPO                         exposive
13 14:20 +3 3 SPO
14 14:23 -1 4 SPO
15 16:42 +4 3 SPO
16 16:46 +3 3 SPO
17 16:54 +4 4 SPO
18 16:57 +5 4 DCA
19 17:10 +3 3 DCA
20 17:13 +3 4 DCA
21 17:14 +1 3 DCA
22 17:18 +3 3 DCA
23 17:18 +4 3 DCA
24 17:25 +4 3 SPO
25 17:26 +2 3 DCA
26 17:26 +4 4 DCA
27 17:35 +2 3 SPO
28 17:39 +4 4 SPO
29 17:49 +3 3 SPO
30 17:52 +4 3 DCA
31 18:00 +1 3 DCA
32 18:06 +4 4 SPO
33 18:06 +3 4 DCA
34 18:06 +4 4 DCA
35 18:06 +4 3 SPO
36 18:37 +2 3 DCA
37 18:38 +3 3 SPO
38 18:42 -2 3 DCA
39 18:43 +4 4 DCA
40 ? +4 4 DCA
41 18:52 +5 3 DCA
42 18:52 +3 3 SPO
VELOCITY (VEL.) SCALE:
0 = Stationary
1 = Very Slow
2 = Slow
3 = Medium
4 = Fast
5 = Very Fast
----------------------------------------------------------------------------
REMARKS:
----------------------------------------------------------------------------
<END OF REPORT>
Send reports to: visual@imodot net, zj@bac.pkudot edu.cn

-- 
===========================================================================
Jin Zhu                             | Tel.:  +86-10-62756286 (O)
National Astronomical Observatories |        +86-314-5520267 (Schmidt dome)
Chinese Academy of Sciences         | Pager: +86-10-96301682333
P. R. China                         | Fax :  +86-10-62765031
---------------------------------------------------------------------------
Room 2919, No. 2 Science Building, CAS-PKU Beijing Astrophysics Center,
Peking University, Beijing 100871, P. R. CHINA.
---------------------------------------------------------------------------
email: zj@bac.pkudot edu.cn                  http://vega.bac.pkudot edu.cn/~zj
===========================================================================
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