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Galaxy Evolution Explorer

Galaxy Evolution Explorer. MAST/GALEX Team:. (Tony Rogers) Chase Million* Bernie Shiao Myron Smith Shui -Ay Tseng. Rose Bowl Parade. GALEX ’ s complicated status in 2012. May 2012: NASA “ lent ” CalTech the satellite.

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Galaxy Evolution Explorer

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  1. Galaxy Evolution Explorer MAST/GALEX Team: • (Tony Rogers) • Chase Million* • Bernie Shiao • Myron Smith • Shui-Ay Tseng Rose Bowl Parade

  2. GALEX’s complicated status in 2012 • May 2012: NASA “lent” CalTech the satellite. • Completed mission by low-voltage obser- vations of bright sky regions (Mag. Clouds, Galactic bulge, additional Kepler fields, etc.) • October: GALEX observations began in “scan” mode, funded by consortium (Caltech, Orbital Sci. Corp., a few universities) through 2012. • MAST poised to copy over documentation site.

  3. GALEX Deliveries in 2012 • Last of GI deliveries. • All GR7 imaging and GR7 deliveries for post-Jan. 2011, including redeliveries of cross-mission imaging and GR6 grism spectra data. • “GCAT” catalog (MSC, ASC, i.e. medium & all-sky) deliveries are pending. These 2 catalogs will provide unique identifiers and fluxes for nearly all GALEX sources at NUV-source positions.

  4. Unresolved questions • Will ops. continue past December? – dunno. • What is the path of delivering post-NASA phase data? - unknown, but it will be found (…when?).

  5. Creation of Photon List files (x,y,t storage of all photons) • Requires extensive processing for conversion: “raw6” (large) photon list files • Caltech delivered raw6 files; MAST stored them (20 TB). • Procedure to rewrite part of pipeline code in local area (C. Million). Bernie uses a small cloud of 5 MAST computers to convert the raw6. • Results to be stored in a MAST database (~80-100 TB) for preprocessed light curves (and image movies) or customized extractions at 1 second cadence.

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