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(meteorobs) observations
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report
Date: 15/16 (day), 08 (month), 2002 (year).
Begin: 20h 46m. End: 02h 03m. (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 Pinteric
IMO Code: PINSE
Observed showers (please use IMO three letter code):
Shower alfa delta
PER 50 59
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 (no zenital hight correction)
alfa delta (h) M N M N N
20:46-22:04 285 20 1,67 1,06 5,5 C 12 C 5
17 20±6
22:28-23:33 0 20 1,08 1 6,01 C 14 C 11
25 21±7
23:33-00:50 350 50 1,1 1 5,38 C 8 C 7
15 21±7
00:50-02:03
Totals of N 4.22 137 19 156
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 4 3 9,5 10 11,5
8 1 50
Spor 0 0 0 0 0 0 1 0 0 2 3 7 9
7 0 28
General Remarks:
Interval from 20:46 to 22:04
Time Nr N lm
20:46 14 11 5,5
20:46 7 9 5,3
20:47 13 9 5,8
Mean limiting magnitude lm: 5,5
Obscured Field %
20:46-20:56 20
20:56-20:57 50
21:05-21:25 15
21:25-21:37 5
21:37-22:04 0
K= 0,061, F=1/(1-K)= 1,06
Breaks
20:57-21:05
Net observed time Teff= 100 m= 1,67 h
Interval from 22:28 to 23:33
Time Nr N lm
22:28 14 11 6,05
22:28 13 7 5,4
20:47 14 11 6,05
22:56 7 14 6,0
22:56 14 12 6,1
23:12 14 14 6,1
23:12 7 13 5,4
Mean limiting magnitude lm: 6,01
Obscured Field %
22:28-23:33 0
K= 0,0, F=1/(1-K)= 1
Net observed time Teff= 65 m= 1,08 h
Interval from 23:33 to 00:50
Time Nr N lm
23:33 14 10 5,4
00:10 7 11 5,45
00:17 7 9 5,3
00:17 14 9 5,3
00:47 6 8 5,9
00:47 7 12 5,5
00:47 14 10 5,4
Mean limiting magnitude lm: 5,38
Obscured Field %
23:33-00:50 0
K= 0,0, F=1/(1-K)= 1,0
Breaks
00:02-00:10
00:14-00:17
Net observed time Teff= 66 m= 1,1 h
Interval from 00:50 to 02:03
Time Nr N lm
00:50 7 9 5,3
01:09 7 12 5,5
01:09 14 8 5,2
01:39 7 11 5,45
01:50 18 11 5,7
Mean limiting magnitude lm: 5,41
Obscured Field %
00:50-02:03 0
K= 0,0, F=1/(1-K)= 1,0
Net observed time Teff= 73 m= 1,22 h
---------------------------------------------
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report
Date: 15/16. 08. 2002.
Begin: 20h 48m. End: 00h 45m. (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: Nikola Strah
IMO Code: STRNI
Observing group: /
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
20:48-21:48 315 40 1 1.29 4.4 C 2 C 3 5
48±21
21:48-22:55 315 40 1.083 1 5.37 C 4 C 11
15 41±11
22:55-00:45 15 60 1.1 1 5.86 C 3 C 4
7 12±5
Totals of N 3.183 9 18 27
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 1 2 3 1 1 0
9
Spor 1 1 1 3.5 6.5 3 0 2
18
Interval from: 20h 48m to: 21h 48m UT
Time Nr N Lm
20h 48m 14 7 5.0
21h 09m 14 6 4.9
Mean limiting magnitude Lm: 4.94
Sky Obscured
20h 48m to 20h 52m 30%
20h 52m to 20h 54m 50%
20h 54m to 21h 01m 70%
21h 01m to 21h 06m 50%
21h 06m to 21h 26m 20%
21h 26m to 21h 48m 0%
K= 0.225, F=1/(1-K)=1.29
Breaks: 0m total
Net observed time Teff: 60m =1 h
__________________________________________________________________________
Interval from: 21h 48m to: 22h 55m UT
Time Nr N Lm
22h 28m 14 8 5.2
22h 30m 6 7 5.7
Mean limiting magnitude Lm: 5.37
Sky Obscured
21h 48m to 22h 55m 0%
K= 0, F=1/(1-K)=1
Net observed time Teff: 67 min = 1.083 h
_______________________________________________________________________
Interval from: 22h 55m to: 00h 45m UT
Time Nr N Lm
22h 55m 14 11 5.5
22h 55m 6 8 5.9
23h 42m 14 11 5.5
23h 42m 6 12 6.3
00h 13m 14 12 5.7
00h 13m 6 9 6.2
Mean limiting magnitude Lm: 5.86
Sky Obscured
22h 55m to 00h 45m 0%
K= 0, F=1/(1-K)=1
Breaks: 23h 13m to 23h 40m
00h 06m to 00h 13m
00h 32m to 00h 42m
Breaks 44m total
Net observed time Teff: 66m = 1.1 h
_____________________________________
International Meteor Organization
VISUAL OBSERVING FORM - Summary Report
Date: 15/16. 08. 2002.
Begin: 20h 52m. End: 01h 29m. (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: Nela Tomiæ
IMO Code: TOMNE
Observing group: /
Observed showers (please use IMO three letter code):
Shower alfa delta
PER 50 59
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
20:52-22:04 220 30 1,2 1,17 5,45 C 8 C 0 8
22:28-23:30 270 40 1.03 1 5.5 C 10 C 12
22
23:30-00:51 270 40 1,35 1 5.5 C 12 C 7
19
00:51-01:29 5 285 0,63 1 5,5 c 9 c 5
14
Totals of N 4,21 39 24 63
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 1,5 0,5 2,5 5,5 8,5 5 5,5 7 3
0 0 39
Spor 0 0 0 0 1 0 0 0 2,5 3,5 5,5 8,5 3
0 0 24
Interval from: 20h 52m to: 22h 04m UT
Time Nr N Lm
21h 20m 14 10 5.4
21h 37m 7 12 5,5
Mean limiting magnitude Lm: 5,45
Sky Obscured
20h 52m to 21h 18m 40%
21h 18m to 22h 04m 0%
K= 0.144, F=1/(1-K)=1.17
Breaks: 0m total
Net observed time Teff: 72m =1,2 h
__________________________________________________________________________
Interval from: 22h 28m to: 23h 30m UT
Time Nr N Lm
23h 13m 7 12 5,5
Mean limiting magnitude Lm: 5.5
Sky Obscured
22h 28m to 23h 30m 0%
K= 0, F=1/(1-K)=1
Net observed time Teff: 62 min = 1.03 h
_______________________________________________________________________
Interval from: 23h 30m to: 00h 51m UT
Time Nr N Lm
23h 55m 14 11 5.5
Mean limiting magnitude Lm: 5.5
Sky Obscured
23h 30m to 00h 51m 0%
K= 0, F=1/(1-K)=1
Breaks 0m total
Net observed time Teff: 81m = 1,35 h
______________________________________________________________________-
Interval from: 00h 51m to: 01h 29m UT
Time Nr N Lm
00h 58m 14 11 5.5
Mean limiting magnitude Lm: 5.5
Sky Obscured
00h 51m to 01h 29m 0%
K= 0, F=1/(1-K)=1
Breaks 0m total
Net observed time Teff: 38m = 0,63 h
-----------------------------------------------
_________________________________________________________________
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