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On-Orbit Performance of MODIS On-Board CalibratorsThe Terra MODIS (Moderate Resolution Imaging Spectroradiometer) was launched on December 18, 1999 and acquired the first scene data on February 24, 2000. It has 36 spectral bands covering spectral range from 0.41 to 14.2 microns and provides spatial resolutions of 250 (2 bands), 500 (5 bands), and 1000 m at Nadir. The instrument on-orbit calibration and characterization are determined and monitored through the use of a number of on-board calibrators (OBC). Radiometric calibration for the reflective solar bands (B1-B19, B26), from VIS (visible) to SWIR (short wavelength infrared) (0.41 to 2.1 microns), uses a Spectralon (tm) solar diffuser (SD) and a solar diffuser stability monitor (SDSM). For the thermal emissive bands (B20-B25, B27-B36), from MWIR (medium wavelength infrared) to LWIR (long wavelength infrared) (3.75 to 14.2 micron), a V-grooved flat panel blackbody is used. The instrument spectral for the VIS to SWIR bands and spatial co-registration characterizations for all bands are monitored on-orbit by the spectral radiometric calibration assembly (SRCA). In this report, we discuss the application and performance of the key MODIS on-board calibrators and their impacts on the instrument system calibration and characterization.
Document ID
20010106397
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Xiong, X. (Science Systems and Applications, Inc. Lanham, MD United States)
Che, N. (Science Systems and Applications, Inc. Lanham, MD United States)
Chiang, K. (Science Systems and Applications, Inc. Lanham, MD United States)
Esposito, J. (Science Systems and Applications, Inc. Lanham, MD United States)
Barnes, William (NASA Goddard Space Flight Center Greenbelt, MD United States)
Guenther, B. (Lockheed Martin Corp. Silver Spring, MD United States)
Zukor, Dorothy J.
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Optics
Meeting Information
Meeting: 2001Conference on Characterization and Radiometric Calibration for Remote Sensing
Location: Logan, UT
Country: United States
Start Date: September 17, 2001
End Date: September 20, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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