NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A GNC Perspective of the Launch and Commissioning of NASA's SMAP (Soil Moisture Active Passive) SpacecraftThe NASA Soil Moisture Active Passive (SMAP) spacecraft was designed to use radar and radiometer measurements to produce global soil moisture measurements every 2-3 days. The SMAP spacecraft is a complicated dual-spinning design with a large 6 meter deployable mesh reflector mounted on a platform that spins at 14.6 rpm while the Guidance Navigation and Control algorithms maintain precise nadir pointing for the de-spun portion of the spacecraft. After launching in early 2015, the Guidance Navigation and Control software and hardware aboard the SMAP spacecraft underwent an intensive spacecraft checkout and commissioning period. This paper describes the activities performed by the Guidance Navigation and Control team to confirm the health and phasing of subsystem hardware and the functionality of the guidance and control modes and algorithms. The operations tasks performed, as well as anomalies that were encountered during the commissioning, are explained and results are summarized.
Document ID
20170008278
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Brown, Todd S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 1, 2017
Publication Date
January 4, 2016
Subject Category
Launch Vehicles And Launch Operations
Earth Resources And Remote Sensing
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: Annual AIAA Science and Technology Forum and Exposition (AIAA SciTech) 2016
Location: San Diego, CA
Country: United States
Start Date: January 4, 2017
End Date: January 8, 2017
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available