The LSST Scheduler from design to construction

Francisco Delgado; Michael A. Reuter

doi:10.1117/12.2233630

15 July 2016 The LSST Scheduler from design to construction

Francisco Delgado, Michael A. Reuter

Proceedings Volume 9910, Observatory Operations: Strategies, Processes, and Systems VI; 991013 (2016) https://doi.org/10.1117/12.2233630
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Large Synoptic Survey Telescope (LSST) will be a highly robotic facility, demanding a very high efficiency during its operation. To achieve this, the LSST Scheduler has been envisioned as an autonomous software component of the Observatory Control System (OCS), that selects the sequence of targets in real time. The Scheduler will drive the survey using optimization of a dynamic cost function of more than 200 parameters. Multiple science programs produce thousands of candidate targets for each observation, and multiple telemetry measurements are received to evaluate the external and the internal conditions of the observatory. The design of the LSST Scheduler started early in the project supported by Model Based Systems Engineering, detailed prototyping and scientific validation of the survey capabilities required. In order to build such a critical component, an agile development path in incremental releases is presented, integrated to the development plan of the Operations Simulator (OpSim) to allow constant testing, integration and validation in a simulated OCS environment. The final product is a Scheduler that is also capable of running 2000 times faster than real time in simulation mode for survey studies and scientific validation during commissioning and operations.

Citation Download Citation

Francisco Delgado and Michael A. Reuter "The LSST Scheduler from design to construction", Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 991013 (15 July 2016); https://doi.org/10.1117/12.2233630

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