[Meteorobs] Obs: 24 Oct 2009

[pmartsching at mchsi.com]

The morning of 18 October was the first time I was able to observe the Orionids this year.  Then the mornings of 19-23 October were mostly cloudy to overcast with rain (3 1/2 inches this week).  So I missed all the best nights.

24 October 2009 07:30-11:15 UT (CDST 23/24 Oct 02:30-06:15 am) 5 minute break 09:30-09:35

When I first arrived at McFarland Park (06:30 UT), it was 80% overcast; Soon it was 90% overcast, but by 07:15 the NW sky was clearing.

07:30-08:30 UT; 35 degrees F; dew point 32 deg F; wind West 9 mph; partly cloudy; average cloud cover 10%; LM 5.5; facing East 50 degrees; total teff 1.0 hour
EGE: none
ORI: fourteen: -2; -1; 0(2); +1; +2(3); +3(3); +4(3)
NTA: none
STA: three: -1; +1; +2
Sporadics: one: -1
Total meteors: eighteen

08:30-09:30 UT; 34 deg F; dew pt 31 deg F; wind West 8 mph; partly cloudy; 5% cloud - mostly low in the East; LM 5.6; facing East 50 deg; total teff 1.0 hour
EGE: one: -1 yellow, with 1 second train
ORI: thirteen: -4; -3; -1; 0(2); +2(3); +3(3); +4(2)        -4 with train lasting 5 seconds
NTA: one: +3
STA: none
Sporadics: five: +1; +3(3); +4
Total meteors: twenty

Break: 09:30-09:35 UT

09:35-10:35 UT; 32 deg F; dew pt 30 deg F; wind West 7 mph; clear; LM 5.7; facing East 50 deg; total teff 1.0 hour
EGE: none
ORI: nine: 0(2); +1; +2; +3(3); +4; +5
NTA: none
STA: one: +2
Sporadics: eight: -2; +2(3); +3(3); +4
Total meteors: eighteen

10:35-11:15 UT; 30 deg F; dew pt 28 deg F; wind West 7 mph; clear; LM 5.6; by 11:15 UT morning twilight impinging on zodiacal light and glare of Venus; facing East 50 deg; total teff 0.67 hour (40 minutes)
EGE: none
ORI: sixteen: -3: -2(2); -1; 0(2); +1(2); +2(4); +3(3); +4
NTA: none
STA: one: -2
Sporadics: eight: +2(2); +3(5); +4
Total meteors: twenty-five

22 of 52 Orionids showed obvious trains = 42%

Color: 34 white; 16 yellow; 2 orange

If last hour is counted as 10:15-11:15 UT then actual observed rate for the hour was 19 Orionids.






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