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Published byFelicia Parsons Modified over 9 years ago
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Hristo Pavlov 4-th Trans Tasman Symposium on Occultations 5 April 2010, Canberra
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Started as project for Astrometry Significant learning for me, read many papers on the topics of Photometry and Astrometry Shifted the main focus from astrometry to asteroid occultation measurements First line of code written in April 2009 In closed beta testing since January 2010 Planned release date as public beta – May 2010
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Improved tracking Easier to reduce light curves by new users and more control for advanced users Ability to save and send a small in size light curve file that can be used by others to do additional reductions More ways to do photometry Ability to correct for Flats and Darks
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Image Calibration (Darks & Flats) Digital Filters Photometry – algorithms Photometry – standard system as filters Photometry - variable star methodology Astrometry Spacecraft Star Orientation – lost in space algorithms Packages for stellar photometry CCD and Video camera documentation
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Stetson. P., 1986, "DAPHOT: A computer program for crowded-field stellar photometry", http://adsabs.harvard.edu/cgi- bin/bib_query?bibcode=1987PASP...99..191S&db_key=ASThttp://adsabs.harvard.edu/cgi- bin/bib_query?bibcode=1987PASP...99..191S&db_key=AST Stetson. P., 1989, "The techniques of least squares and stellar photometry with CCDs", http://nedwww.ipac.caltech.edu/level5/Stetson/Stetson4_2.html http://nedwww.ipac.caltech.edu/level5/Stetson/Stetson4_2.html Mighell, K., 1999, "Algorithms for CCD Stellar Photometry", http://www.adass.org/adass/proceedings/adass98/reprints/migh ellkj.pdf http://www.adass.org/adass/proceedings/adass98/reprints/migh ellkj.pdf Fadeyev, V., 2004, "PSF Photometry Lecture", http://panisse.lbl.gov/snphot/lec8_vitaliy_PSF_fit.pdf http://panisse.lbl.gov/snphot/lec8_vitaliy_PSF_fit.pdf
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April – September 2009: Built a prototype to test the photometry and astrometry algorithms that are going to be used June – July 2009: Acquired and reported astrometry of bright asteroids and comets using the prototype to test the astrometry precision (~ 0.3”) October 2009: Did tests of the photometric algorithms with real star fields. Published the results on my web site at: http://www.hristopavlov.net/Articles/Video Photometry.html http://www.hristopavlov.net/Articles/Video Photometry.html
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Developed between November 2009 – April 2010 Used code from the prototype Rewrite of the tracking to add significant improvements In closed beta testing since January 2010
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DEMO1 - 2000AJ55 (17h 56m 36s -26d55'42'').AVI 12:12:35 – 12:13:05
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DEMO2 - REC_049.AVI 9:11:08 – 9:12:08
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DEMO3 - DEMO3 - 071231_Nealley 41m25s.AVI 10:41:18 – 10:41:31
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DEMO5 - Dione.lc
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