1 March 1994 Coarse-grained scheduling for astronomy satellites
Author Affiliations +
Abstract
For the past fifteen years, the International Ultraviolet Explorer (IUE) astronomical satellite has been successfully scheduled by `coarse-graining' the time into large discrete blocks. The success is due in part to the flexibility of coarse-graining which allows real-time modifications to the observing plan by the guest investigators. Such flexibility is desirable whenever an astronomical object is observed for the first time by a particular mission, since new data sometimes contain scientific surprises, and because several important types of astronomical objects are characteristically unpredictable and variable (e.g. supernovas, x-ray transients, etc.). Software which can incorporate this approach has the potential of significantly improving the efficiency and scientific return of future satellite missions. We give an overview of the IUE satellite and its scheduling requirements and describe our approach to satellite scheduling using constraint logic programming. We describe some of the constraints which are useful for satellite scheduling and show how the constraints can be used for efficient coarse- grained scheduling. We also discuss advantages of this approach for other satellite telescopes.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark Graves, Bruce McCollum, "Coarse-grained scheduling for astronomy satellites", Proc. SPIE 2244, Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry, (1 March 1994); doi: 10.1117/12.169383; https://doi.org/10.1117/12.169383
PROCEEDINGS
8 PAGES


SHARE
KEYWORDS
Satellites

Astronomy

Sun

Computer programming

Logic

Sensors

Space operations

RELATED CONTENT

Infrared Space Observatory (ISO): mission and spacecraft
Proceedings of SPIE (October 01 1993)
Spacelab Transitioning To Space Station
Proceedings of SPIE (October 23 1984)
The 8 year report on MSX thermal blanket outgassing ...
Proceedings of SPIE (October 15 2004)
The Extreme Ultraviolet Explorer
Proceedings of SPIE (November 09 1981)

Back to Top