Computer Science – Performance
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19910215k&link_type=abstract
American Astronomical Society, 199th AAS Meeting, #102.15; Bulletin of the American Astronomical Society, Vol. 33, p.1466
Computer Science
Performance
Scientific paper
Operations and performance specifications of the National Space Science and Technology's (NSSTI) newly developed Infrared Cloud Imager (IRCI) are presented. This instrument, which utilizes a mid-infrared (8 - 13 micron) 320x240 uncooled microbolometer array, has been successfully demonstrated to delineate clouds for the number one purpose of improving astronomical observational efficiency. IRCI attains infrared images of the sky over a 150-degree cone angle (i.e. down to 15 degrees above the horizon) at a 5 Hz frame rate. By coadding frames, this instrument is capable of detecting thin cirrus clouds. Images are displayed in terms of the fractional radiance that would be achieved by an ambient temperature blackbody of emissivity equal to one. Data can be utilized to determine atmospheric transmission in the mid-infrared spectral interval on approximately one-by-one degree spatial scales.
Klebe Dimitri I.
National Space Science and Technology NSSTI Research and Develop
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