(meteorobs) Fwd: Sept Obs

[pmartsching at mchsi.com]

Sorry if this is a second posting.  I never got this posting back from meteorobs.

Paul

----- Forwarded Message -----
From: pmartsching at mchsi.com
To: meteorobs <meteorobs at meteorobs.org>
Sent: Sun, 5 Sep 2010 08:58:10 -0500 (CDT)
Subject: Sept Obs

Paul Martsching

04 Sept 2010 04:30-07:00 UT (3/4 Sept 11:30pm - 02:00am CDST)
McFarland Park 4 miles NE of Ames, Story Co., Iowa, USA  

The Antihelion meteors seemed unusually dim.

Antihelion
September Epsilon Perseids
Sporadics

04:30-05:30 UT; 56 deg F; dew pt 47 deg F; wind NW 7 mph; clear; very little horizon haze; LM 5.8; facing NNE 50 deg (sky darkest this direction and glare of Jupiter in the SE); total teff 1.0 hour.
Antihelion: two: +2; +4
SPE: none
Sporadics: three: +1; +3(2)
Total meteors: five

05:30-06:30 UT; 55 deg F; dew pt 47 deg F; wind NW 7 mph; clear; LM 5.8; facing NNE 50 deg; total teff 1.0 hour.
Antihelion: three: +2; +3; +4
SPE: one: +1
Sporadics: six: +1; +2; +3; +4(2); +5
Total meteors: ten

06:30-07:00; 54 deg F; dew pt 46 deg F; wind NW 8 mph; clear; LM 5.7; facing NNE 50 deg; total teff 0.5 hour.
Antihelion: none
SPE: one: +1
Sporadics: four: 0; +1; +2; +3
Total meteors: five (half hour)

Quit at 07:00 UT because of Moon rise.


05 September 2010 05:00-06:00 UT (04/05 Sept midnight - 01:00 am CDST)
McFarland Park 4 miles NE of Ames, Story County, Iowa, USA

I spent several minutes talking to a new, young Story County sheriff deputy before signing on.  He had followed me to McFarland Park the last half mile.  I explained that I had been observing from this site for twenty-three years.  He seemed ok with that.  Tho the park closes at 10:30 pm, there is a primitive camp site where over-night camping is allowed, and there is an agreement between Story County and the Ames Area Amateur Astronomy club that club members can be at or near the observatory any time of night.  

Conditions fairly good at the beginning of the hour; then thin, diffuse haze moved in, and soon after 06:00 UT the sky was 50 percent cloudy and remained mostly cloudy till after 07:00 UT so I went home (less than an hour left till Moon rise).  Clouds moving from NW to SW directly against the direction of the ground wind.  This happens more often than many people realize.  If I had been 5 miles to the West I could have continued observing, as I was under the western edge of the hundred mile long streak of cloud. 

Antihelion
September Epsilon Perseids
Sporadics

05:00-06:00 UT 55 deg F; 53 deg F; wind SE 3 mph; clear with little horizon haze, then becoming generally hazy; average LM 5.3; facing NNE 50 deg; total teff 1.0 hour.
Antihelion: one: -1
SPE: one: +3
Sporadics: two: -2; +2
Total meteors: four