157P/Tritton
� 2009-09-10 by Bernhard Haeusler, Maidbronn, Germany 9 x 2 min. exposure,
2009-09-10, UT
01:54 to
02:13, 12" SCT
f-6.532 + CCD ST10XME MPC observation: computed with Astrometrica COD B82 NET CMC-14
0157P C2009 09 10.08709 00 11 02.12 +13 22 03.6 18.3 N B82
Gauss curve produced by Astrometrica. The total PSF is using the
aperture circle of 3 x 3 pixel around the brightest pixel. Photometry computed with FOCAS II, using the Multibox method: COD B82
10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD
157P
10/09/2009 02:03:51 18.50 17.67 17.35 17.09 16.70 16.24 2.4 17.7 B82 FoCAs II - 07/01/2009-b FOCAS II is a tool for photometry on the base of data coming from Astrometrica. Focas is basically using the .LOG file of Astrometrica. Explanation of the FOCAS II table headings:
Object, date and time are self-explaining.
second line:
Focas II is using the .log file of Astrometrica and is computing
the photometry under different apertures (10x10 ... 60x60). links: http://astrosurf.com/cometas-obs/index_i.htm Visual and CCD Observations and images from the "Cometas Obs" mailing list, using the Focas II format es.groups.yahoo.com/group/Cometas_Obs The Spanish comet observation group in Yahoo
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