The MACHO Data Pipeline

Details The MACHO Data Pipeline The MACHO Data Pipeline

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.7404a&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #74.04; Bulletin of the American Astronomical Society, Vol. 27, p.1390

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Scientific paper

The MACHO experiment is monitoring more than 20 million stars in the LMC and Galactic bulge for gravitational microlensing events and other forms of variability. The hardware consists of a 50 inch telescope, a two-color 32 megapixel ccd camera, and a network of computers. On clear nights the system generates up to 8 GB of raw data and 1 GB of reduced data. The computer system is responsible for all realtime control tasks, for data reduction, and for storing all data associated with each observation in a data base. The subject of this poster is the software system that handles these functions. It is an integrated system controlled by Petri nets that consists of multiple processes communicating via mailboxes and a bulletin board. The system is highly automated, readily extensible, and incorporates flexible error recovery capabilities. It is implemented with C++ in a Unix environment.

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