Earthshine Observing Log - 2005 April 12

(Go on for sample images, on-line analysis result, and monthly lunar almanac)


General Information:

Observer: Alla Shumko
Weather: high clouds
Seeing: good
Lunar Phase: -138.3 degree
Sun set: 02:12 UT
Moon rise: 15:33 UT
Moon set: 05:40 UT
Sun rise: 13:24 UT
Camera temperature: -35
BE filter type: NG3 2mm
ES filter type: NG10 2mm
BS exposure: 4000msec ms
ES Exposure: 70000msec ms
Image sequence: 4BS+ES+DC; FLAT
Image directory: (moon) /images/05apr12/

Observing Notes:

High clouds



Sample Lunar Images on April 12, 2005

Crescent Earthshine ES side flat


Stddev of the flat: 1.10 (at the mean of 100).


On-line Analysis Result for April 12, 2005

Intensity vs. time Intensity vs. airmass [A*]


Moonshine fitting Stddev.: 0.102499; airmass absorptivity: -0.212211
Crescent fitting Stddev.: 0.0983066; airmass absorptivity: -0.215694
Earthshine fitting Stddev.: 0.0688385; airmass absorptivity: -0.231485

[A*] (from top to bomttom): 1.16376, 1.16422, Stddev: 0.137828, 0.133868; Calc. [A*]: 1.41825


Comments:
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© BBSO/NJIT - Last updated on Tue Jun 14 14:05:38 PDT 2005.