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(meteorobs) Perseid observations





Hi!
We are the Meteor Group of Visnjan School of Astronomy, Visnjan Observatory, 
Croatia. Last night was fine so we could do the observations. Tonight the 
weather doesn't seem to be so good but we hope we could do some new 
observations.


                                        Meteor Group of VSA2002

International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 12/13 (day), 08 (month), 2002 (year).
Begin: 20h 29m.  End: 02h 30m. (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
20:29-21:28  262.5   15      0.92   1.00    5.2    C    2      C    10     
19       8 ± 2.82
21:28-22:26  262.5   15      0.9    1.00    5.2    C    18     C    11	   29 
       69 ± 16.263
22:35-23:38  292.5   30      0.63   1.03    5.0    C    14     C    3	   17  
      96 ± 3,74
23.38-00:51  292.5   30	     1.18   1.11    5.0    C    28     C    6      
34       130 ± 24,56
Totals of N		         		        69 	    30	   99

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    2    4    8.5  7.5  11   15.5  10.5 7    3    0   
0     69
Spor.	   0    0    0    0    1    1    2.5  4    8.5  6.5   4    1.5  1    0 
   0     30







Interval from 20:29 to 21:28 UT
Time	       Nr	   N	     Lm
20:29-20:50    14	   8         5.2
20:50-21:15    14	   8         5.2
21:15-21:28    14          8         5.2
Mean limiting magnitude Lm: 5.2  (same as on summary report)

Sky obscured   %
20:29-20:50    0
K= 0.0	F=1/(1-K)= 1.00	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 0.92 h (same as on summary report)


Breaks
20:54-20:58 UT



Interval from 21:28 to 22:26 UT
Time	       Nr	   N	     Lm
21:28-21:45    14	   8         5.2
21:45-22:05    14	   8         5.2
22:05-22:26    14          8         5.2
Mean limiting magnitude Lm: 5.2  (same as on summary report)

Sky obscured   %
21:28-22:26    0
K= 0.0	F=1/(1-K)= 1.00	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 0.9 h (same as on summary report)


Breaks
21:38-2142 UT





Interval from 22:35 to 23:38 UT

Time	      Nr	   N	     Lm
22:35-22:50   14	   7         5.0
22:50-23:20   14	   7         5.0
23:20-23:38   14           7         5.0
Mean limiting magnitude Lm: 5.0  (same as on summary report)

Sky obscured    %
22:35-22:50     0
22:50-23:20     0
23:20-23:28     10

K= 0.03	F=1/(1-K)= 1.03	(same as on summary report)
Time for plotting: / s/meteor, / min total. Breaks / min total.
Net observed time: Teff: 0.63 h (same as on summary report)

Breaks
23:16-23:38 UT


Interval from 23:40 to 00.51 UT
Time	       Nr	   N	     Lm
23:40-23:50    14	   7         5.0
23:50-00:20    14          7         5.0
00:20-00:51    14          7         5.0
Mean limiting magnitude Lm: 5.0  (same as on summary report)

Sky obscured   %
23:40-23:50    10
23:50-00:20    10
00:20-00:51    10
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: 1.18 h (same as on summary report)
No breaks

_______________________________________________________________________
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 12/13 , 8, 2002.  0
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: Nikola Strah
IMO Code: STRNI
Observing group:
Note:

Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER          43      58
KCG          284     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        KCG       
Spor     Total
             alfa   delta    (h)                   M    N     M    N    M    
N       N
20:29- 21:05  292     10     0.46    1      5.2    C    10    C    0    C    
2       12  90  ± 26 21:06- 22:05  307     15     0.87    1      5.7    C    
13    C    0    C    2       15  37  ± 10
22:06- 22:49  345     15     0.72    1      6.1    C    11    C    0    C    
8       19  39  ±  9
23:53- 01:16  345     15     1.27    1      5.6    C    25    C    0    C    
1       26  48  ±  9
01:17- 02:30  15      60     1.18    2.27   5.34   C    20    C    0    C    
0       20  117 ± 26

Totals of N		     4.5 		     79 	 0	  13         92

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    1    1    3    3    2    8    10   18    14   11   4    
4   0      79
KCG        0    0    0    0    0    0    0    0     0    0     0    0   0    
0   0       0



Spor.      0    0    0    0    0    0    0    2     2    5     1    1   1    
1   0       13

General Remarks:

Interval from 20 h 29 min to 21 h 05 min

Time                   Nr        N            Lm

20 h 29 min            5         6            5.2


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

Obscured field                             %

20 h 29 min to 21 h 05 min                 0



Breaks

20 h 53 min to 21 h 02 min

K=0,   F=1/(1-K)= 1 (same as on summary report)

Time for plotting: 0  sec/meteor, 0 m total, Breaks: 9 min total

Net observed time Teff= 27 min= 0.45 h (same as on summary report)
_____________________________________________________________________________________________

Interval from 21 h 06 min to 22 h 05 min


Time                   Nr        N            Lm

21 h 20 min            14        7            5.0
22 h 03 min             5        6            5.2

Mean limiting magnitde Lm:5.7  (same as on the summary report)

Obscured field                              %

21 h 06 min to 22 h 05 min                  0



Breaks

21 h 56 min to 22 h 03 min

K=0,   F=1/(1-K)= 1 (same as on summary report)

Time for plotting: 0  sec/meteor, 0 m total, Breaks: 7 min total

Net observed time Teff= 52 min= 0.87 h (same as on summary report)

_________________________________________________________________________________________________

Interval from 22 h 06 min to 22 h 49 min

Time                   Nr        N            Lm

22 h 05 min            6         9            6.2
22 h 38 min            6         6            5.4
22 h 38 min            14        7            5.0

Mean limiting magnitde Lm:6.1  (same as on the summary report)

Obscured field                             %

22 h 06 min to 22 h 49 min                 0



Breaks

0

K=0,   F=1/(1-K)= 1 (same as on summary report)

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

Net observed time Teff= 43 min= 0.72 h (same as on summary report)
_________________________________________________________________________________________________

Interval from 23 h 53 min to 01 h 16 min

Time                   Nr        N            Lm

23 h 53 min            6         7            5.7
23 h 53 min            14        11           5.5


Mean limiting magnitde Lm:5.6  (same as on the summary report)

Obscured field                             %

23 h 53 min to 1 h 16 min                  0



Breaks

0 h 15 min to 0 h 19 min
0 h 42 min to 0 h 45 min


K=0,   F=1/(1-K)= 1 (same as on summary report)

Time for plotting: 0  sec/meteor, 0 m total, Breaks: 7 min total

Net observed time Teff= 76 min= 1.27 h (same as on summary report)
________________________________________________________________________________________________

Interval from 01 h 17 min to 02 h 30 min

Time                   Nr        N            Lm

01 h 27 min            6         8            5.9
01 h 39 min            2         6            5.0



Mean limiting magnitde Lm:5.34  (same as on the summary report)

Obscured field                             %

01 h 17min  to 01 h 19 min                  0
01 h 19 min to 01 h 26 min                 20
01 h 26 min to 02 h 04 min                 60
02 h 04 min to 02 h 21 min                 50
02 h 21 min to 02 h 30 min                 80


Breaks

01 h 58 min to 02 h 00 min

K=0.56,   F=1/(1-K)= 2.27 (same as on summary report)

Time for plotting: 0  sec/meteor, 0 m total, Breaks: 2 min total

Net observed time Teff= 71 min= 1.18 h (same as on summary report)

________________________________________________________________________
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 12/13 (day), 8(month), 2002(year).
Begin: 20h 28m.  End: 3h 55m. (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
KCG         248      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       KCG       
Spor     Total    ZHR
             alfa   delta    (h)                   M    N     M   N     M    
N
20:28-21:30  300     60      0.91    1      5      C   24     C   2     C    
  7     31    142±26
21:30-22:30  300     60       1      1      5      C   26     C   0     C    
17     43    180±27
22:30-23:30  300     60       1      1      5.1    C   21     C   0     C    
18     39    148±24
22:30-23:25  300     60      0.91    1      5.1    C   28     C   0     C    
  6     34    146±25
23:30-00:20  300     60      0.83   1.11    5.1    C   23     C   0     C    
  3     26    138±27
Totals of N		                              122         2          51    175

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   0.5  4.5   6    22   20   24   8    11   10   7    
2    0     115
KCG        0    0    0    0    0    0    0    0    0    1    0    0    1    
0    0       2
Spor.      0    0    0    0    3    4    10   8    8    3    8    5    5    
4    0      58

General Remarks:


Interval from 20:28 to 21:30

Time	Nr	N	lm
20:28   13      6       5.0
        14      7       5.0
Mean limiting magnitude lm: 5.0


Obscured Field 	                     %
20:28 to 21:30                       0

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


Net observed time Teff= 55m = 0.91h



Interval from 22:30 to 23:30

Time	Nr	N	lm
23:30   13      6       5.0
        14      7       5.0
Mean limiting magnitude lm: 5.0


Obscured Field                 	    %
22:30 to 23:30                      0

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


Net observed time Teff= 60m= 1h




Interval from 23:30 to 00:25

Time	Nr	N	lm
23:30   15      5       5.1
        16      5       5.1
Mean limiting magnitude lm: 5.1


Obscured Field 	                    %
23:30 to 00:25                      0

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


Net observed time Teff= 60m= 1h




Interval from 00:30 to 01:25

Time	Nr	N	lm
00:30   15      5       5.1
        16      5       5.1
Mean limiting magnitude lm: 5.1


Obscured Fieled 	             %
00:30 to 1:25                        0

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


Net observed time Teff= 55m = 0.91h




Interval from 01:30 to 02:20

Time	Nr	N	lm
01:30   15      5       5.1
        16      5       5.1
Mean limiting magnitude lm: 5.1


Obsculeted Filed 	              %
01:30 to 02:20                       10

K=0.1 , F=1/(1-K)=1.11


Net observed time Teff= 50m = 0.83h

______________________________________________________________________
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: / 12/13,8, 2002.
Begin: 20h 29m.  End: 01h 45m. (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: Vedrana Dzaja
IMO Code: DZAVE

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
20:29-21:00   15     30      0,71    1      5,7    C    45     C    3      
48      136+/-20
23:03-01:45   15     30      2,42    1      5,7    C    67     C    7      
74      59+/-7
Totals of N		     		                112         10     122

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    3    11   11   12    22   15   26   
11       112
Spor.                                                   1     3    2         
4

Interval from: 20h 29m to: 21:00 UT

Time      Nr     N    Lm
20 h29m   13     8    5,7
Mean limiting magnitude Lm: 5,7

K=0, F=1 (same as on summary report)
Time for plotting: 0, /meteor, 0 total. Breaks: 0 m total.
Net observed time Teff= 0,71 h. (same as on summary report)


Sky obscured         %
20h 29m-21h 00m      0

Interval from: 23h 03m to: 01h 45m UT

Time      Nr     N     Lm

23h 03m   13     8     5,7

Mean limiting magnitude Lm: 5,7 (same as on summary report)

Sky obscured       %
23h 03m-01h45m     0

K=0, F=1 (same as on summary report)
Time for plottig: 0, /meteor, 0 total. Breaks: 0 m total.
Net observed time Teff= 2,42 h. (same as on summary report)


General Remarks:

________________________________________________________________________

International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 12/13. 08. 2002.
Begin: 20h 29m.  End: 02h 30m. (UT)
Location: Long. 33deg 43min 48sec East,
          Lat. 45deg 16min 43sec N,
          h=246.5 m.
IMO Code: 23003
Place: Visnjan Observaory, 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	YHR
             alfa   delta    (h)                   M    N      M    N      N
20:29-21:29   225    75	      1	    1.11     5,7   c	24     c    16     40   
57  ±  2
21:29-22:48   225    75	      1.98  1.11     5,7   c    26     c    20     
46   31  ±  1
22:48-23:30   225    75       1.36  1.11     5,7   c    27     c    17     
44   47  ±  2
23:30-00:50   225    75       2     2        5,7   c    44     c    24     
68   94  ±  2
00:50-02:30   225    75       0.91  2        5.4   c    31     c    9      
40   195 ±  6

Totals of N		                                152         86     238

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                 0.5  2.5  0.5  1.5   2   13.5  25  26.5  25    21  20.5  
13  0.5  152
Spor                                    0.5  7     16  18    16.5  9   8     
10  1    86



Interval from: 20h 29m to: 21h 29m UT
Time      Nr  N  Lm
20h 29m   19  6  5.7
Mean limiting magnitude Lm: 5.7
Sky Obscured
20h 29m 0%
K= 0.1, F=1/(1-K)=1.11
Net observed time Teff: 1

Interval from: 21h 29m to: 22h 48m UT
Time      Nr  N  Lm
21h 29m   19  6  5.7
Mean limiting magnitude Lm: 5.7
Sky Obscured
21h 29m 0%
K= 0.1, F=1/(1-K)=1.11
Net observed time Teff: 1.98

Interval from: 22h 48m to: 23h 30m UT
Time      Nr  N  Lm
22h 48m   19  6  5.7
Mean limiting magnitude Lm: 5.7
Sky Obscured
22h 48m 0%
K= 0.1, F=1/(1-K)=1.11
Net observed time Teff: 1.36

Interval from: 23h 30m to: 00h 50m UT
Time      Nr  N  Lm
23h 30m   19  6  5.7
Mean limiting magnitude Lm: 5.7
Sky Obscured
23h 30m 30%
K= 0.5, F=1/(1-K)=2
Net observed time Teff: 2

Interval from: 00h 50m to: 02h 30m UT
Time      Nr  N  Lm
00h 50m   19  5  5.4
Mean limiting magnitude Lm: 5.4
Sky Obscured
00h 50m 50%
K= 0.5, F=1/(1-K)=2
Net observed time Teff: 0.91

_______________________________________________________________________

International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: / 12/13, 8, 2002.
Begin: 20h 29m.  End: 2h 30m. (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:Nela Tomić
IMO Code: TOMNE

Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER         43      58
KCG         284     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      KCG     Spor     
Total    ZHR
             alfa   delta    (h)               M    N    M   N   M    N      
N
20:29-21:15   292    10     0,76   1    5,3    c    11   c   0   c    11     
22    45+-13
21:29-22:20   229    10     0,85  1,23  5,3    c     6   c   0   c    17     
23    27+-11
00:10-02:30   345    10     2,33  2,82  5,3    c    21   c   0   c    15     
36    121+-26



Totals of N		    		         38 	   0	   43        81

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        0    0    0    0    1   2,5  3,5   8   6,5   6    6,5   2    2    
0   0     38
Spor.      0    0    0    0    0   2,5  0,5  3,5  10,5  10    8   5,5  1,5   
0   1     43

General Remarks:

________________________________________________________________________________________


Interval from  20:29 to 21:15
Time      Nr    N     Lm
20:30    14    9     5,3

Mean limiting magnitude Lm: 5,3  (same as on summary report)

Obscured field   %
20:29-21:15     0

K=0
F=1/(1-K)=1
Breaks: 0 m total
Net observed time Teff= 46 m = 0,76h

________________________________________________________________________


Interval from 21:29  to 22:20
Time     Nr    N      Lm
22:00   14    9      5,3

Mean limiting magnitude Lm: 5,3   (same as on summary report)

Obscured field   %
21:29-22:00     0
22:00-22:00     50


Breaks
21:40 to 21:59

K=0,19
F=1/(1-K)=1,23
Breaks: 9 m total
Net observed time Teff= 51 m = 0,85 h

___________________________________________________________________________


Interval from  01:10 to 2:30
Time     Nr    N      Lm
01:20   14    9      5,3

Mean limiting magnitude Lm: 5,3  (same as on summary report)

Obscured field   %
01:10-01:40     60
01:40-02:20     50
02:20-02:30     90


K=0,593
F=1/(1-K)=2,45
Breaks: 0 m total
Net observed time Teff= 80 m = 1,33 h

_______________________________________________________________________
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report

Date: 12/13 (day), 08(month), 2002(year).
Begin: 21h 55m.  End: 0h 34m. (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

Observed showers (please use IMO three letter code):
Shower      alfa    delta
PER	     43	      58
KCG	     28	      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	KCG       Spor     
Total   ZHR (no correction for radiant hight)
             alfa   delta    (h)                   M    N     M    N 	M    N 
      N
21:55-22:58   290    45      0,9    1	    5,9    C    31    C    0 	C    15  
    46      61
23:03-23:50   290    45      0,7    1,09    5,5    C    26    C    0    C    
8      34      105
23:50-0:34    320    30      0,45   1       5,5    C    21    C    0    C    
1      22      127

Totals of N		     2,05		        78 	   0	     24     102

Give interval analysis for each period mentioned above.


Fields:
    Star          alfa      delta



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    1    4    7    7    18   15    18   2   
0     79	KCG        0    0    0    0    0    0    0    0    0    0     0    
0     0   0   0      0
Spor       0    0    0    0    0    0    0    3    2    1      1    4    4   
9   0     24


Interval from  21:55 to 22:58

Time	Nr	N	lm
21:55	14	10	5,8
21:55	7	13	5,9
22:40	14	11	5,9

Mean limiting magnitude lm:5,866


Obscured Field 	%
21:55 to 22:58		0

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

Breaks
22:02 to 22:09
Breaks: 07m total

Net observed time Teff= 56m= 09h



Interval from  23:02 to 23:50

Time	Nr	N	lm
23:11	14	11	5,5
23:11	7	12	5,5

Mean limiting magnitude lm: 5,5


Obscured Field 	%
23:03 to 23:08		0
23:10 to 23:25		0
23:25 to 23:28		25
23:28 to 23:30		50
23:33 to 23:35		45
23:35 to 23:43		10
23:43 to 23:50		0

K= 0,08, F=1/(1-K)=1,09


Breaks
23:08 to 23:10
23:30 to 23:33

Breaks: 5m total

Net observed time Teff= 42m= 0,7h



Interval from 23:50 to 0:34

Time	Nr	N	lm
23:55	14	11	5,5

Mean limiting magnitude lm: 5,5


Obscured Field 	%
23:50 to 0:34		0

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


Breaks
23:54 to 0:01
0:20  to 0:32

Breaks: 17m total

Net observed time Teff= 27m= 0,45h



________________________________________________________________________




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