Alternative method for VIIRS Moon in space view process

Samuel Anderson; Kwofu V. Chiang; Xiaoxiong Xiong

doi:10.1117/12.2024780

23 September 2013 Alternative method for VIIRS Moon in space view process

Samuel Anderson, Kwofu V. Chiang, Xiaoxiong Xiong

Proceedings Volume 8866, Earth Observing Systems XVIII; 88661Y (2013) https://doi.org/10.1117/12.2024780
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

The Visible Infrared Imaging Radiometer Suite (VIIRS) is a radiometric sensing instrument currently operating onboard the Suomi National Polar-orbiting Partnership (S-NPP) spacecraft. It provides high spatial-resolution images of the emitted and reflected radiation from the Earth and its atmosphere in 22 spectral bands (16 moderate resolution bands M1-M16, 5 imaging bands I1-I5, and 1 day/night pan band DNB) spanning the visible and infrared wavelengths from 412 nm to 12 μm. Just prior to each scan it makes of the Earth, the VIIRS instrument makes a measurement of deep space to serve as a background reference. These space view (SV) measurements form a crucial input to the VIIRS calibration process and are a major determinant of its accuracy. On occasion, the orientation of the Suomi NPP spacecraft coincides with the position of the moon in such a fashion that the SV measurements include light from the moon, rendering the SV measurements unusable for calibration. This paper investigates improvements to the existing baseline SV data processing algorithm of the Sensor Data Record (SDR) processing software. The proposed method makes use of a Moon-in-SV detection algorithm that identifies moon-contaminated SV data on a scan-by-scan basis. Use of this algorithm minimizes the number of SV scans that are rejected initially, so that subsequent substitution processes are always able to find alternative substitute SV scans in the near vicinity of detected moon-contaminated scans.

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Samuel Anderson, Kwofu V. Chiang, and Xiaoxiong Xiong "Alternative method for VIIRS Moon in space view process", Proc. SPIE 8866, Earth Observing Systems XVIII, 88661Y (23 September 2013); https://doi.org/10.1117/12.2024780

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KEYWORDS

Calibration

Sensors

Detection and tracking algorithms

Space operations

Neodymium

Ions

Contamination

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