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Proceedings Paper

Early orbit operations performance of the Suomi NPP OMPS instrument
Author(s): Matthew Kowalewski; Chunhui Pan; Scott Janz
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Paper Abstract

The Ozone Mapping Profiler Suite (OMPS) was launched aboard the Suomi National Polar-orbiting Partnership (Suomi NPP) spacecraft on October 28, 2011. OMPS is meant to continue NOAA/NASA's long-term ozone data record and bridge the gap to the Joint Polar Satellite System (JPSS) missions later this decade. We present results from the OMPS Nadir and Limb sensors' early orbit checkout (EOC) operations with comparisons to pre-launch thermal vacuum tests. Characterization measurements of detector performance show that offset, gain, and read noise trends remain within 0.2% of the pre-launch values with significant margin below sensor requirements. Nadir Total Column detector dark generation rate trends show a slow growth in both halves of the focal plane as compared to initial on-orbit measurements. Nadir solar calibration measurements remain within 2% of the initial in-flight observation and indicate no spatially dependent change to within 1%. Limb Profiler solar calibration trending indicate a potential goniometry correction error as high as 5%. Spectral registration changes based on solar observations are determined to be less than one pixel for the Nadir Total Column and Limb sensors but approximately one pixel for Nadir Profiler. Preliminary comparisons to Thullier reference solar spectral irradiances show wavelength dependent differences greater than 5%.

Paper Details

Date Published: 15 October 2012
PDF: 13 pages
Proc. SPIE 8510, Earth Observing Systems XVII, 851007 (15 October 2012); doi: 10.1117/12.929753
Show Author Affiliations
Matthew Kowalewski, Universities Space Research Association (United States)
NASA Goddard Space Flight Ctr. (United States)
Chunhui Pan, Univ. of Maryland, College Park (United States)
Scott Janz, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 8510:
Earth Observing Systems XVII
James J. Butler; Xiaoxiong Xiong; Xingfa Gu, Editor(s)

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