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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