GOES imager visible-to-infrared channel registration using star observations

Donald Chu; Jeanette G. Baucom; Perry Baltimore; James C. Bremer

doi:10.1117/12.505668

10 November 2003 GOES imager visible-to-infrared channel registration using star observations

Donald Chu, Jeanette G. Baucom, Perry Baltimore, James C. Bremer

Proceedings Volume 5151, Earth Observing Systems VIII; (2003) https://doi.org/10.1117/12.505668
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Due to optical misalignment, visible and infrared channels of the Geostationary Operational Environmental Satellite (GOES) I-M Imager may not be properly registered. This “co-registration” error is currently estimated by comparing groups of visible and infrared observation residuals from the GOES Orbit and Attitude Tracking System (OATS). To make the channel-to-channel comparison more direct, it was proposed to compare individual observations rather than groups of observations. This has already been done for landmarks but not for stars. Stars would help determine nighttime co-registration when visible landmarks are not available. Although most stars in the GOES catalog are not detectable in the shortwave infrared channel, many are. Because stars drift west-to-east across the detectors and because of their high observation frequency, stars provide good east-west co-registration information. Due to the large detector fields-of-view, stars do not provide much information about north-south co-registration.

Citation Download Citation

Donald Chu, Jeanette G. Baucom, Perry Baltimore, and James C. Bremer "GOES imager visible-to-infrared channel registration using star observations", Proc. SPIE 5151, Earth Observing Systems VIII, (10 November 2003); https://doi.org/10.1117/12.505668

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KEYWORDS

Stars

Sensors

Imaging systems

Infrared radiation

Mirrors

Infrared imaging

Signal detection

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