Environmental qualification of the protoflight MODIS instrument

Thomas L. Koch; Duane M. Bates; James L. Bell Jr.; Roger L. Hoelter; Craig James Kent; Steven M. Kus; David M. La Komski; John A. Leonard; John A. Mehrten; Jay R. Neumann; David L. Rogers; Thomas E. Wolverton

doi:10.1117/12.325634

3 October 1998 Environmental qualification of the protoflight MODIS instrument

Thomas L. Koch, Duane M. Bates, James L. Bell Jr., Roger L. Hoelter, Craig James Kent, Steven M. Kus, David M. La Komski, John A. Leonard, John A. Mehrten, Jay R. Neumann, David L. Rogers, Thomas E. Wolverton

Author Affiliations +

Proceedings Volume 3439, Earth Observing Systems III; (1998) https://doi.org/10.1117/12.325634
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A key milestone in NASA's Mission to Planet Earth project was achieved with the completion of Environmental Qualification testing of the Protoflight Model (PFM) Moderate Resolution Imaging Spectroradiometer (MODIS) instrument. Completing this task paved the way for MODIS to be integrated onto the EOS AM spacecraft which is to be launched as the keystone of the EOS system. Qualification of the PFM MODIS instrument required conducting an extensive test program in four different test facilities. Accomplishing environmental qualification testing, while meeting the stringent contamination and operational requirements for the MODIS instrument, required us to address a variety of issues and tasks. The main tasks included: developing special ground support test equipment, developing special tenting and handling equipment to protect the instrument from being contaminated during off-site environmental vibration an electromagnetic compatibility testing, designing and developing a state-of-the-art thermal-vacuum test chamber, and defining detailed test operations to fully characterize the instrument's electrical, optical and mechanical performance before, during and after each environmental test sequence. Selected penalty test were streamlined for characterizing the instrument whenever design changes or improved test techniques were incorporated to ensure all requirements had been met while maintaining a fully qualified instrument.

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Thomas L. Koch, Duane M. Bates, James L. Bell Jr., Roger L. Hoelter, Craig James Kent, Steven M. Kus, David M. La Komski, John A. Leonard, John A. Mehrten, Jay R. Neumann, David L. Rogers, and Thomas E. Wolverton "Environmental qualification of the protoflight MODIS instrument", Proc. SPIE 3439, Earth Observing Systems III, (3 October 1998); https://doi.org/10.1117/12.325634

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