21/22.04.2001 20:28-23:00 UT
Site: Varkaus, Finland
Long: 27°44' Lat: 62°19'
Observer: Markku Nissinen
Showers: LYR, SPOR
Time (UT) Field Teff lm meteors
(mainly) LYR SPOR
----------- ------- ---- --- ----------
20:28-21:00 345 +60 0,52 5,0 1 6 F = 1,43
21:00-21:30 345 +60 0,50 5,7 2 8 F = 1,11
21:30-22:00 345 +60 0,48 5,7 6 9 F = 1,11
22:00-22:30 345 +60 0,50 5,7 8 7 F = 1,11
22:30-23:00 345 +60 0,48 5,7 8 7 F = 1,11
Total Teff = 2,52
Average Lm = 5,55
Average F = 1,16
Lyrids magnitude distribution
-4 -3 -2 -1 0 1 2 3 4 sum Average
2028-2100 1 1 2,00
2100-2130 2 2 2,00
2130-2200 2 4 6 3,67
2200-2230 1 1 1 1 4 8 2,38
2230-2300 1 2 1 4 8 2,25
sum 0 0 0 2 3 4 0 4 12 25
average 2,48
Sporadics magnitude distribution
-4 -3 -2 -1 0 1 2 3 4 sum
2028-2100 1 2 3 6 3,33
2100-2130 1 1 1 5 8 3,12
2130-2200 1 1 4 3 9 3,00
2200-2230 2 5 7 3,71
2230-2300 2 5 7 3,70
sum 0 0 0 0 1 1 3 11 21 37
average 3,35
METEOR OBSERVATION (COUNTING METHOD)
2001-04-24 20:50:23 UT
20:--:-- mag 2 Spor
20:--:-- mag 3 Spor
20:--:-- mag 2 Spor
20:--:-- mag 2 LYRID
20:--:-- mag 3 Spor
20:--:-- mag 4 Spor
20:--:-- mag 3 LYRID
20:--:-- mag 4 Spor
20:--:-- mag 3 Spor
20:--:-- mag 2 Spor
SUMMARY of METEOR OBSERVATION
Ilkka Yrjölä
Kuusankoski
26E29'
60N53'
95mASL
Field:
alpha= 210
delta= +45
2001-04-24/25 20:50:23-21:57:00 UT
Duration Teff(h): 1.11
Lm: 5.50 F: 1.0
Shower: LYRIDS ZHR: 5.2 +- 3.7 @ r: 2.7 @ Cp: 1.5
-5 -4 -3 -2 -1 0 1 2 3 4 5 6
0 0 0 0 0 0 0 1 1 0 0 0 m 2.50 2
Sporadics: HR: 16.4 +- 5.8
0 0 0 0 0 0 0 3 3 2 0 0 m 2.88 8