{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:18:23Z","timestamp":1760242703172,"version":"build-2065373602"},"reference-count":17,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2016,2,12]],"date-time":"2016-02-12T00:00:00Z","timestamp":1455235200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The Visible Infrared Imaging Radiometer Suite (VIIRS) instruments on-board both the Suomi National Polar-orbiting Partnership (S-NPP) and the first Joint Polar Satellite System (JPSS-1) spacecraft, with launch dates of October 2011 and December 2016 respectively, are cross-track scanners with an angular swath of \u00b156.06\u00b0. A four-mirror Rotating Telescope Assembly (RTA) is used for scanning combined with a Half Angle Mirror (HAM) that directs light exiting from the RTA into the aft-optics. It has 14 Reflective Solar Bands (RSBs), seven Thermal Emissive Bands (TEBs) and a panchromatic Day Night Band (DNB). There are three internal calibration targets, the Solar Diffuser, the BlackBody and the Space View, that have fixed scan angles within the internal cavity of VIIRS. VIIRS has calibration requirements of 2% on RSB reflectance and as tight as 0.4% on TEB radiance that requires the sensor\u2019s gain change across the scan or Response Versus Scan angle (RVS) to be well quantified. A flow down of the top level calibration requirements put constraints on the characterization of the RVS to 0.2%\u20130.3% but there are no specified limitations on the magnitude of response change across scan. The RVS change across scan angle can vary significantly between bands with the RSBs having smaller changes of ~2% and some TEBs having ~10% variation. Within a band, the RVS has both detector and HAM side dependencies that vary across scan. Errors in the RVS characterization will contribute to image banding and striping artifacts if their magnitudes are above the noise level of the detectors. The RVS was characterized pre-launch for both S-NPP and JPSS-1 VIIRS and a comparison of the RVS curves between these two sensors will be discussed.<\/jats:p>","DOI":"10.3390\/rs8020141","type":"journal-article","created":{"date-parts":[[2016,2,12]],"date-time":"2016-02-12T10:16:19Z","timestamp":1455272179000},"page":"141","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["JPSS-1 VIIRS Pre-Launch Response Versus Scan Angle Testing and Performance"],"prefix":"10.3390","volume":"8","author":[{"given":"David","family":"Moyer","sequence":"first","affiliation":[{"name":"The Aerospace Corporation, El Segundo, CA 90245, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeff","family":"McIntire","sequence":"additional","affiliation":[{"name":"Science Systems and Applications, Inc., Lanham, MD 20706, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hassan","family":"Oudrari","sequence":"additional","affiliation":[{"name":"Science Systems and Applications, Inc., Lanham, MD 20706, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James","family":"McCarthy","sequence":"additional","affiliation":[{"name":"Stellar Solutions, Palo Alto, CA 90306, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoxiong","family":"Xiong","sequence":"additional","affiliation":[{"name":"NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frank","family":"De Luccia","sequence":"additional","affiliation":[{"name":"The Aerospace Corporation, El Segundo, CA 90245, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2016,2,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Cao, C., Xiong, X., Blonski, S., Liu, Q., Uprety, S., Shao, X., Bai, Y., and Weng, F. 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