Lyridit 2001



Havaintoraportteja:


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


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