The AIA for SDO: Plans for Flight Operations

Physics – Optics

Scientific paper

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Scientific paper

The Atmospheric Imaging Array (AIA) has been integrated to the NASA Solar Dynamics Observatory for over a year and is being prepared for launch in the fourth quarter of 2009. AIA will provide unprecedented full-disk images of the solar corona simultaneously covering a wide range of temperatures. Four normal incidence telescopes with multilayer-coated optics obtain images with 0.6 arcsec pixels of EUV-emitting iron lines (covering temperatures between 0.6 and 15 x 106 K), He II 304Å, and C IV in broadband UV. In normal operations, AIA acquires eight 4k x 4k pixel images every 10s that are compressed for transmission to the ground, and require approximately 1 TByte of ground storage per day if compressed by a factor of 2. The instrument calibration has been completed and comprehensive performance predictions are available (see Wolfson et al). The observing program is configurable by tables that can be uploaded from the ground. AIA data is processed to Level 1 in the JSOC pipeline and made available for export to scientific users. Additional data products, such as movies of active regions, light curves, and DEM maps, have been developed for distribution. We present an update of the predicted instrument performance, discuss the concept of operations, and describe the data processing for Level 1 data products. Exported FITs data files conform to SolarSoft standards and the data flow design enables a seamless connection to the Heliosphysics Event Knowledgebase (see Hurlburt et al).

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