Bench checkout equipment for spaceborne laser altimeter systems

Details Bench checkout equipment for spaceborne laser altimeter systems Bench checkout equipment for spaceborne laser altimeter systems

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lri..workqq...s&link_type=abstract

In its Eighth International Workshop on Laser Ranging Instrumentation 22 p (SEE N94-15552 03-19)

Other

Checkout, Equipment Specifications, Functional Design Specifications, Laser Altimeters, Mars Observer, Pulsed Lasers, Solid State Lasers, Spaceborne Lasers, Test Equipment, Pulse Repetition Rate, Transit Time

Scientific paper

This paper addresses the requirements for testing and characterizing spaceborne laser altimeter systems. The Bench Checkout Equipment (BCE) system, test requirements, and flow-down traceability from the instrument system's functional requirements will also be presented. Mars Observer Laser Altimeter (MOLA) and the MOLA BCE are presented as representative of a 'typical' laser altimeter and its corresponding test system. The testing requirements of other or future laser altimeter systems may vary slightly due to the specific spacecraft interface and project requirements. MOLA, the first solid-state interplanetary laser altimeter, was designed to be operational in Mars orbit for two Earth years. MOLA transmits a 7.5 ns pulse at a wavelength of 1.064 microns with a 0.25 mr beam divergence and a pulse repetition rate of 10 Hz. The output energy is specified at 45 mj at the beginning of mapping orbit and 30 mj at the end of one Martian year. MOLA will measure the laser pulse transit time from the spacecraft to the Mars surface and return to a resolution of 1.5 meters.

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