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(meteorobs) PER 020812 from ZHUJI



Visual Observing Form - Summary Report

Day: 12/13 Month: 08 Year: 2002   Begin:  17h20m   End: 19h26m

Location  long. 117d34'42"E  latit. 40d32'47"N  860 meter  IMO code: 30015

Site: Xinglong, Hebei  Country: China
   
Observer     Jin ZHU                             IMO code: ZHUJI 

Showers:
 -------------------------------------------------------------------------
| Shw |alpha|delta| Shw |alpha|delta| Shw  |alpha|delta| Shw  |alpha|delta|
|-------------------------------------------------------------------------|
| PER | 045 | +58 |     |     |     |      |     |     |      |     |     |
 -------------------------------------------------------------------------

   -----------------------------------------------------------------------
  | Period  |Field  |Teff| F | lm |PER | ___| ___| ___| ___| ___| ___|Spor|
  |  (UT)   |RA  Dec|  h |   | m  |M| N|M| N|M| N|M| N|M| N|M| N|M| N|M| N|
  |-----------------------------------------------------------------------|
 1|1720-1830|350|+40|1.07|1.1| 5.6|c|31| |  | |  | |  | |  | |  | |  |c|19|
  |---------|---|---|----|---|----|-|--|-|--|-|--|-|--|-|--|-|--|-|--|-|--|
 2|1832-1926|360|+40|0.77|1.1| 4.3|c|18| |  | |  | |  | |  | |  | |  |c|10|
   -----------------------------------------------------------------------

 -------------------------------------------------------------------------
|Shower  |-6|-5|-4|-3| -2| -1 |  0 | +1 | +2 | +3 | +4 | +5 | +6 | +7| tot|
|--------|--|--|--|--|---|----|----|----|----|----|----|----|----|---|----|
| PER 1  | 2| 1| 1| 2|  3|  0 |  2 |  3 |  3 | 10 |  3 |  1 |  0 |  0| 31 |
|--------|--|--|--|--|---|----|----|----|----|----|----|----|----|---|----|
| PER 2  | 0| 0| 1| 2|  0|  1 |  3 |  2 |  5 |  4 |  0 |  0 |  0 |  0| 18 |
|--------|--|--|--|--|---|----|----|----|----|----|----|----|----|---|----|
|spor.   | 2| 0| 0| 2|  2|  3 |  2 |  6 |  4 |  4 |  4 |  0 |  0 |  0| 29 |
 -------------------------------------------------------------------------

  ------------------------------------------------------------------------

Interval from 17:20 to 18:30

 --------------------------------------------------------------------
|Time   | Nr | N  | lm |Time   | Nr | N  | lm |Time   | Nr | N  | lm |
|--------------------------------------------------------------------|
| 17:33 | 14 | 10 |5.58| 17:45 | 02 | 08 |5.60| 18:17 | 02 | 07 |5.55|
 --------------------------------------------------------------------
Mean limiting magnitude Lm: 5.6  (same as on summary report)

 -------------------------------------------         ----------------
| Obscured Field | %  | Obscured Field | %  |       |      Breaks    |
|-------------------------------------------|       |----------------|
| 17:20 to 18:30 | 05 | _____ to _____ | __ |       | 17:38 to 17:39 |
| _____ to _____ | __ | _____ to _____ | __ |       | 18:04 to 18:06 |
| _____ to _____ | __ | _____ to _____ | __ |       | 18:20 to 18:21 |
 -------------------------------------------         ----------------
 K= 0.05 , F=1/(1-K)= 1.1   (same as on summary report)

Time for plotting:   0   sec/meteor,   0  m total, Breaks:  4  m total.

Net observed time Teff=  64 m = 1.07 h (same as on summary report.

------------------------------------------------------------------------------

Interval from 18:32 to 19:26

 --------------------------------------------------------------------
|Time   | Nr | N  | lm |Time   | Nr | N  | lm |Time   | Nr | N  | lm |
|--------------------------------------------------------------------|
| 18:57 | 02 | 05 |4.95| 19:01 | 02 | 04 |3.78| 19:24 | 17 | 06 |3.97|
 --------------------------------------------------------------------
Mean limiting magnitude Lm: 4.3  (same as on summary report)

 -------------------------------------------         ----------------
| Obscured Field | %  | Obscured Field | %  |       |      Breaks    |
|-------------------------------------------|       |----------------|
| 18:32 to 19:26 | 05 | _____ to _____ | __ |       | 18:40 to 18:42 |
| _____ to _____ | __ | _____ to _____ | __ |       | 18:50 to 18:56 |
 -------------------------------------------         ----------------
 K= 0.05 , F=1/(1-K)= 1.1   (same as on summary report)

Time for plotting:   0   sec/meteor,   0  m total, Breaks:  8  m total.

Net observed time Teff=  46 m = 0.77 h (same as on summary report.

------------------------------------------------------------------------------

-- 
===========================================================================
Jin Zhu                             | Tel.:  +86-10-62756286 (O)
National Astronomical Observatories |        +86-314-5520439 (Schmidt dome)
Chinese Academy of Sciences         | Pager: +86-10-96301682333
P. R. China                         | Fax :  +86-10-62765031
---------------------------------------------------------------------------
email: jinzhu@bao.ac.cn                   http://vega.bac.pkudot edu.cn/~zj
===========================================================================
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