JWST planning and scheduling operations and concepts

Wayne M. Kinzel

doi:10.1117/12.858212

29 July 2010 JWST planning and scheduling operations and concepts

Wayne M. Kinzel

Proceedings Volume 7737, Observatory Operations: Strategies, Processes, and Systems III; 77370Y (2010) https://doi.org/10.1117/12.858212
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The James Webb Space Telescope (JWST) will be a large infrared space observatory in orbit about the Sun-Earth second Lagrange Point. This paper provides an overview of the expected operational requirements imposed by the observatory's basic science activities (imaging, spectroscopy, coronography) and the operational issues associated with interleaving periodic engineering activities (Wave Front Sensing & Control activities, Momentum Unloads, and orbit Station Keeping) with the science observations. The planning and scheduling operations must maximize the overall science integration time while meeting the mission and observer specified constraints. The "Observation," "Visit," and Observation Template constructs are explained in the context of providing an interface to the Observer that provides the ability to specify complex observations, such as mosaics and cluster targets, while also minimizing specification errors and allowing planning and scheduling flexibility of the observations. The expected nominal planning and scheduling process including the creation and maintenance of the Long Range Plan (~1.25 year duration), the Short Term Schedules (~ three weeks), and the on-board Observation Plan (< 10 days) is described. The event-driven on-board operations of JWST and how the planning and scheduling process monitors and reacts to the onboard execution of the Observation Plan are described. Finally, the methods employed to allow for robust interfacing of scheduled real-time operations (for example, Station Keeping) with the Observation Plan and unplanned, but expected, modifications to the Observation Plan (for example, Target of Opportunity) are described.

Citation Download Citation

Wayne M. Kinzel "JWST planning and scheduling operations and concepts", Proc. SPIE 7737, Observatory Operations: Strategies, Processes, and Systems III, 77370Y (29 July 2010); https://doi.org/10.1117/12.858212

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