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Scheduling Results for the THEMIS Observation Scheduling ToolWe describe a scheduling system intended to assist in the development of instrument data acquisitions for the THEMIS instrument, onboard the Mars Odyssey spacecraft, and compare results from multiple scheduling algorithms. This tool creates observations of both (a) targeted geographical regions of interest and (b) general mapping observations, while respecting spacecraft constraints such as data volume, observation timing, visibility, lighting, season, and science priorities. This tool therefore must address both geometric and state/timing/resource constraints. We describe a tool that maps geometric polygon overlap constraints to set covering constraints using a grid-based approach. These set covering constraints are then incorporated into a greedy optimization scheduling algorithm incorporating operations constraints to generate feasible schedules. The resultant tool generates schedules of hundreds of observations per week out of potential thousands of observations. This tool is currently under evaluation by the THEMIS observation planning team at Arizona State University.
Document ID
20150007210
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Mclaren, David
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rabideau, Gregg
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Chien, Steve
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Knight, Russell
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Anwar, Sadaat
(Arizona State Univ. Tempe, AZ, United States)
Mehall, Greg
(Arizona State Univ. Tempe, AZ, United States)
Christensen, Philip
(Arizona State Univ. Tempe, AZ, United States)
Date Acquired
May 4, 2015
Publication Date
June 8, 2011
Subject Category
Computer Programming And Software
Lunar And Planetary Science And Exploration
Meeting Information
Meeting: International Workshop on Planning and Scheduling for Space (IWPSS-11)
Location: Darmstadt
Country: Germany
Start Date: June 8, 2011
End Date: June 10, 2011
Sponsors: European Space Agency
Distribution Limits
Public
Copyright
Other
Keywords
Thermal Emission Imaging System (THEMIS)
multi-spectral data

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