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(meteorobs) 13/14 and 14?15 Aug perseids




We are sending you our perseid observation results hoping they will be 
helpful in the research.
Meteor group from Visnjan observatory in Croatia.


_________________________________________________________________
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VISUAL OBSERVING FORM - Summary Report

Date: 13/14 (day), 08 (month), 2002 (year).
Begin: 21h 34m.  End: 23h 37m. (UT)
Location: Long. 13deg 43min 48sec East,
          Lat. 45deg 16min 52sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Goran Niksic.
IMO Code: NIKGO

Note:

Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER        43deg   +58deg

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER        Spor     
Total       ZHR
             alfa   delta    (h)                   M    N      M    N      N
21:34-22:05    0     60      0.52    1       5.2   C    5      C    4      9
22:05-22:27    0     60      0.37    1       5.2   C    5      C    5      
10
22:27-23:37    0     60      1.17    1.25    5.2   C    9      C    3      
12
Totals of N		         		        19 	    12	   31         36±9

Give interval analysis for each period mentioned above.




Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1     2    3    4    
5   6    TOTAL
PER	   0    0    0    0    0    0    0    3    5    4.5   3    2.5  1    0   
0     19
Spor.	   0    0    0    0    0    0    0.5  0.5  4.5  0.5   3.5  2.5  0    0 
   0     12







Interval from 21:34 to 22:05 UT
Time	       Nr	   N	     Lm
21:34          14	   8         5.2

Mean limiting magnitude Lm: 5.2  (same as on summary report)

Sky obscured   %
21:34-22:05    0
K= 0.0	F=1/(1-K)= 1	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 0.52 h (same as on summary report)


No breaks




Interval from 22:05 to 22:27 UT
Time	       Nr	   N	     Lm
22:05          14	   8         5.2

Mean limiting magnitude Lm: 5.2  (same as on summary report)

Sky obscured   %
22:05-22:27    0
K= 0.0	F=1/(1-K)= 1	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 0.37 h (same as on summary report)


No breaks



Interval from 21:34 to 22:05 UT
Time	       Nr	   N	     Lm
22:27          14	   8         5.2

Mean limiting magnitude Lm: 5.2  (same as on summary report)

Sky obscured   %
22:27-23:37    20
K= 0.0	F=1/(1-K)= 1.25	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 1.17 h (same as on summary report)


No breaks
VISUAL OBSERVING FORM - Summary Report

Date: 14/15 (day), 08 (month), 2002 (year).
Begin: 00h 24m.  End: 01h 29m. (UT)
Location: Long. 13deg 43min 48sec East,
          Lat. 45deg 16min 52sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Goran Niksic.
IMO Code: NIKGO

Note:

Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER        43deg   +58deg

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER        Spor     
Total     ZHR
             alfa   delta    (h)                   M    N      M    N      N
00:24-01:29   30     40      1.08   1.11    5.2    C    8      C    5      
13
Totals of N		         		        8 	    5	   13      34±12

Give interval analysis for each period mentioned above.




Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1     2    3    4    
5   6    TOTAL
PER	   0    0    0    0    0    1    0    0    2.5  1.5   0.5  2    0.5  0   
0     8
Spor.	   0    0    0    0    0    0    0    0    1    0     1.5  1.5  1    0 
   0     5







Interval from 00:24 to 01:29 UT
Time	       Nr	   N	     Lm
00:24          14	   8         5.2

Mean limiting magnitude Lm: 5.2  (same as on summary report)

Sky obscured   %
00:24-01:29    0
K= 0.1	F=1/(1-K)= 1.11	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 1.08 h (same as on summary report)


No breaks


International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 13/14., 08., 2002.
Begin: 21h 34m.  End: 01h 00m. (UT)
Location: Long. 33deg 43min 48sec East,
          Lat. 45deg 16min 43sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Petra korlevic
IMO Code: KORPE
Observing group: /

Observed showers (please use IMO three letter code):
Shower      alfa    delta
Per          43      58
Spor

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER        Spor     
Total  ZHR err
             alfa   delta    (h)                   M    N      M    N      N
21:34-22:34  270    55       1       1.21   5.7    c    16     c    11     
27   42 ± 3
22:34-23:34  270    55       1       1.12   6.2    c    14     c    10     
24   29 ± 2
23:34-01:00  270    55       1.43    2      6.3    c    14     c    5      
19   24 ± 2

Totals of N		            		        44 	    26	   70

Give interval analysis for each period mentioned above.


Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1     2    3    4    
5   6    TOTAL
Per                                     1.5   7    8    13.5  7    3    3    
1        44
Spor.                                              8    6     7    1.5  3    
0.5      26



General Remarks:


Interval from: 21h 34m to:22h 34m UT
Time     Nr  N  Lm
21h 34m  14  10 5.7
Mean limiting magnitude Lm: 5.7
Sky obscured
21h 34m-22h 25m   30%
K=0.17, F=1/(1-K)=1.21
Net observed time Teff = 60m= 1h

Interval from: 22h 34m to:23h 34m UT
Time     Nr  N  Lm
22h 34m  14  9  6.2
Mean limiting magnitude Lm: 6.2
Sky obscured
22h 48m-23h 00m   50%
K=0.2, F=1/(1-K)=1.12
Net observed time Teff = 60m= 1h

Interval from: 23h 34m to:01h 00m UT
Time     Nr  N  Lm
23h 34m  14  13 6.3
Mean limiting magnitude Lm: 6.3
Sky obscured
23h 42m-00h 54m   40%
K=1, F=1/(1-K)=2
Net observed time Teff = 86m= 1.43h
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 14/15., 08., 2002.
Begin: 00h 24m.  End: 02h 00m. (UT)
Location: Long. 33deg 43min 48sec East,
          Lat. 45deg 16min 43sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Petra korlevic
IMO Code: KORPE
Observing group: /

Observed showers (please use IMO three letter code):
Shower      alfa    delta
Per          43      58
Spor

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER        Spor     
Total  ZHR err
             alfa   delta    (h)                   M    N      M    N      N
00:24-02:00  355    20       1.08    1.9    6.3    c    11     c    15     
26   23 ± 2

Totals of N		            		        11 	    15	   26

Give interval analysis for each period mentioned above.


Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1     2    3    4    
5   6    TOTAL
Per                                 1              0.5  3.5   1.5  3.5  1.5  
0.5      11
Spor.                                         1    1.5  3     3.5  2.5  3.5  
          15



General Remarks:


Interval from: 00h 24m to:02h 00m UT
Time     Nr  N  Lm
00h 24m  6   11 6.3
Mean limiting magnitude Lm: 6.3
Sky obscured
01h 19m-01h 29m   30%
01h 29m-01h 40m   70%
K=0.9, F=1/(1-K)=1.9
Net observed time Teff = 65m= 1.08h

International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: / 13/14, 08, 2002.
Begin: 21h 34m.  End: 23h 42m. (UT)
Location: Long. 13deg 43min 48sec East,
          Lat. 45deg 16min 53sec N,
          h=246.5 m.
IMO Code: /23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Senka Pintaric
IMO Code: PINSE


Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER          43      58

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER        Spor     
Total  ZHR
             alfa   delta    (h)                   M    N      M    N      N
21:34-22:18  300     40      0,72    1      5,44   C    17     C    4      
21  64+/-15
23:03-23:42  330     40      0,65    1,23   5,45   C    12     C    3      
15  62+/-18
Totals of N		     		       	        29          7      36

Give interval analysis for each period mentioned above.

Note:

Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1     2    3    4    
5   6    TOTAL
PER                                           3    2    4     5    2    6    
6   1      29
Spor.                                              1    1               4    
1          7


General Remarks:

Intrval from: 21h 34m to: 22 18m UT

Time        Nr       N       Lm
21h 34m     14       9       5,3
21h 36m     7        12      5,5
22h 00m     14       11      5,5

Mean limiting magnitude Lm: 5,44

Sky obscured        %                                   Breaks
21h 34m             0                                  22h 09 m-22h 40 m


K=0 F= 1
Time for plotting: 0 / meteor 0 / total
Net observed time Teff = 43m= O.72 h




Intrval from: 23h 03m to: 23 42m UT

Time        Nr       N       Lm
23h 03m     7        12      5,5
23h 04m     14       10      5,4


Mean limiting magnitude Lm: 5,45

Sky obscured        %
23h 03m-23h 08m     40
23h 08m-23h 10m     30
23h 10m-23h 35m     10


K=0,18 F= 1,23
Time for plotting: 0 / meteor 0 / total
Net observed time Teff = 39m= O.65 h











International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 14/15(day), 08(month), 2002(year).
Begin: 0h 24m.  End: 01h 25m. (UT)
Location: Long. 13deg 43min 44sec East,
          Lat. 45deg 16min 39sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Senka Pintaric
IMO Code: PINSE
Observing group:
Note:

Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER          43      56

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER        Spor     
Total
             alfa   delta    (h)                   M    N      M    N      N
00:24- 01:25  345    20      1.02   1.26    6.2    C    13     C    10     
23



Totals of N		     1.02		      13  	   10	   23

Give interval analysis for each period mentioned above



Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1     2    3    4    
5   6    TOTAL
PER        0    0    0    0    0    0    0    0    0    1     2    1    5    
3   0      13
Spor.      0    0    0    0    0    0    0    0    0    1     0    1    2    
4   2      10




General Remarks:

______________________________________________________________________

Interval from 0 h 24 min to 01 h 25 min UT

Time           Nr           N      Lm
0 h 24 min      6           9      6.2

Mean limiting magnitude Lm: 6.2 (same as on summary report)

Breaks 0 m total

Net observed time Teff= 61 min= 1.02 h (same as on summary report)

________________________________________________________________________
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 15 (day), 8(month), 2002(year).
Begin: 00h 25m.  End: 01h 25m. (UT)
Location: Long. 13deg 43min 44sec East,
          Lat. 45deg 16min 39sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Stefan Cikota
IMO Code: CIKST


Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER          43      58

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER       Spor     
Total
             alfa   delta    (h)                   M    N     M    N
00:25-01:25   30     60       1      1       5     C    13    C    5     18
Totals of N		                                13         5     18

Give interval analysis for each period mentioned above.

Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1    2    3    4    
5    6    TOTAL
PER        0    0    0    0    0    0    0    0    3    4    1    2    1    
1    0      12
Spor.      0    0    0    0    3    2    0    2    0    0    0    0    2    
0    0       6

General Remarks:


Interval from 00:25 to 01:25

Time	Nr	N	lm
00:25   13      6       5.0
        14      7       5.0
Mean limiting magnitude lm: 5.0


Obscured Field 	                     %
00:25 to 01:25                       0

K=0 , F=1/(1-K)=1


Net observed time Teff= 60m = 1h

International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 15 (day), 8(month), 2002(year).
Begin: 00h 25m.  End: 01h 25m. (UT)
Location: Long. 13deg 43min 44sec East,
          Lat. 45deg 16min 39sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observatory, Visnjan.  Country: Croatia
Observer: Stefan Cikota
IMO Code: CIKST


Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER          43      58

Observed numbers of meteors per period and per shower:
M: observing method (C(ounting), P(lotting) or R (meteor coordinates 
estimated directly))
N: number of meteors observed; distinguish between "0" (no meteors seen) and 
"/" (shower not analyzed during the period)

Period (UT)      Field       Teff    F      Lm       PER       Spor     
Total
             alfa   delta    (h)                   M    N     M    N
00:25-01:25   30     60       1      1       5     C    13    C    5     18
Totals of N		                                13         5     18

Give interval analysis for each period mentioned above.

Magnitude distributions (for the entire observation):
Shower    -8   -7   -6   -5   -4   -3   -2   -1    0    1    2    3    4    
5    6    TOTAL
PER        0    0    0    0    0    0    0    0    3    4    1    2    1    
1    0      12
Spor.      0    0    0    0    3    2    0    2    0    0    0    0    2    
0    0       6

General Remarks:


Interval from 00:25 to 01:25

Time	Nr	N	lm
00:25   13      6       5.0
        14      7       5.0
Mean limiting magnitude lm: 5.0


Obscured Field 	                     %
00:25 to 01:25                       0

K=0 , F=1/(1-K)=1


Net observed time Teff= 60m = 1h