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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 973 records · Page 54
All sourcesNASA NTRSDOE OSTI
NASA NTRS2000

Deep surveys with SIRTF's infrared array camera

SIRTF guaranteed time observers have specified field surveys to be carried out with IRAC with integration times per position ranging from 90 to over 10,000 seconds. This paper describes the plans for these surveys and their application to the study of galaxy formation and evolution.

SIRTF infrared array camera IRAC Space Infrared Te↗
NASA NTRS1995

Low Power Camera-on-a-Chip Using CMOS Active Pixel Sensor Technology

A second generation image sensor technology has been developed at the NASA Jet Propulsion Laboratory as a result of the continuing need to miniaturize space science imaging instruments. Implemented using standard CMOS, the active pixel sensor (APS) technology permits the integration of the detector array with on-chip timing, control and signal chain electronics, including analog-to-digital conversion.

Space Microelectronics Image Sensors APS Digital I↗
NASA NTRS1995

Low Power Camera-on-a-Chip Using CMOS Active Pixel Sensor Technology

A second generation image sensor technology has been developed at the NASA Jet Propulsion Laboratory as a result of the continuing need to miniaturize space science imaging instruments. Implemented using standard CMOS, the active pixel sensor (APS) technology permits the integration of the detector array with on-chip timing, control and signal chain electronics, including analog-to-digital conversion.

Space Microelectronics Image Sensors APS Digital I↗
NASA NTRS1993

Active Mirrors for On-Orbit Alignment of the Second Generation Wide Field and Planetary Camera

This paper describes the assembly level testing and calibration of the Articulating Fold Mirrors (AFMs), and the development of a software tool that generates the commands for adjusting the positions of the Pickoff Mirror Mechanism (PMM) and the AFMs to achieve system level optical alignment. Our experience with the POMM and AFMs through system level calibration and testing of the WFPC-2 instrument is described.

Telescope Articulating Fold Mirrors↗