The LSST OCS scheduler design

Francisco Delgado; German Schumacher

doi:10.1117/12.2056871

7 August 2014 The LSST OCS scheduler design

Proceedings Volume 9149, Observatory Operations: Strategies, Processes, and Systems V; 91490G (2014) https://doi.org/10.1117/12.2056871
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The Large Synoptic Survey Telescope (LSST) is a complex system of systems with demanding performance and operational requirements. The nature of its scientific goals requires a special Observatory Control System (OCS) and particularly a very specialized automatic Scheduler. The OCS Scheduler is an autonomous software component that drives the survey, selecting the detailed sequence of visits in real time, taking into account multiple science programs, the current external and internal conditions, and the history of observations. We have developed a SysML model for the OCS Scheduler that fits coherently in the OCS and LSST integrated model. We have also developed a prototype of the Scheduler that implements the scheduling algorithms in the simulation environment provided by the Operations Simulator, where the environment and the observatory are modeled with real weather data and detailed kinematics parameters. This paper expands on the Scheduler architecture and the proposed algorithms to achieve the survey goals.

Citation Download Citation

Francisco Delgado and German Schumacher "The LSST OCS scheduler design", Proc. SPIE 9149, Observatory Operations: Strategies, Processes, and Systems V, 91490G (7 August 2014); https://doi.org/10.1117/12.2056871

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