NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Improving the Operations of the Earth Observing One Mission via Automated Mission PlanningWe describe the modeling and reasoning about operations constraints in an automated mission planning system for an earth observing satellite - EO-1. We first discuss the large number of elements that can be naturally represented in an expressive planning and scheduling framework. We then describe a number of constraints that challenge the current state of the art in automated planning systems and discuss how we modeled these constraints as well as discuss tradeoffs in representation versus efficiency. Finally we describe the challenges in efficiently generating operations plans for this mission. These discussions involve lessons learned from an operations model that has been in use since Fall 2004 (called R4) as well as a newer more accurate operations model operational since June 2009 (called R5). We present analysis of the R5 software documenting a significant (greater than 50%) increase in the number of weekly observations scheduled by the EO-1 mission. We also show that the R5 mission planning system produces schedules within 15% of an upper bound on optimal schedules. This operational enhancement has created value of millions of dollars US over the projected remaining lifetime of the EO-1 mission.
Document ID
20150008853
Document Type
Conference Paper
External Source(s)
Authors
Chien, Steve A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tran, Daniel (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rabideau, Gregg (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schaffer, Steve (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mandl, Daniel (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Frye, Stuart (SGT, Inc. Greenbelt, MD, United States)
Date Acquired
May 26, 2015
Publication Date
April 25, 2010
Subject Category
Astronautics (General)
Earth Resources and Remote Sensing
Computer Programming and Software
Meeting Information
SpaceOps 2010 Conference(Huntsville, AL)
Distribution Limits
Public
Copyright
Other