Earthshine Observing Log - 2005 April 18

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


General Information:

Observer: Alla Shumko
Weather: partially cloudy
Seeing: Regular
Lunar Phase: -71.8 degree
Sun set: 02:17 UT
Moon rise: 20:59 UT
Moon set: 10:28 UT
Sun rise: 13:17 UT
Camera temperature: -35
BE filter type: NG3 2mm
ES filter type: NG10 2mm
BS exposure: 1000ms ms
ES Exposure: 40000msec ms
Image sequence: 4BS+ES+DC; FLAT
Image directory: (moon) /images/05apr18/

Observing Notes:

Partially cloudy sky, wind, clear from 07:30(UT) to 09:12 -- High clouds



Sample Lunar Images on April 18, 2005

Crescent Earthshine ES side flat


Stddev of the flat: 1.39 (at the mean of 100).


On-line Analysis Result for April 18, 2005

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


Moonshine fitting Stddev.: 0.0448205; airmass absorptivity: -0.169531
Crescent fitting Stddev.: 0.0446634; airmass absorptivity: -0.159533
Earthshine fitting Stddev.: 0.186225; airmass absorptivity: -0.165928

[A*] (from top to bomttom): 0.907550, 0.907419, Stddev: 0.200054, 0.196177; Calc. [A*]: 1.06155


Comments:
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© BBSO/NJIT - Last updated on Tue Jun 14 20:36:42 PDT 2005.