An project

Options for Alert Production in
LSST Operations Year 1

  • M. L. Graham
  • E. C. Bellm
  • C. T. Slater

  • the DM System Science Team


This document reviews five options for alert production in LSST Operations Year 1 (LOY1). We assess each option’s feasibility in terms of the scope, risk, and formal requirements of the observatory and the Data Management System (DMS), their ability to provide consistent data products to the community, and their potential scientific impact. This study finds that the option for LOY1 alert production which maximizes science, minimizes risk, and engenders the smallest potential expansion of scope is for LSST Data Management (DM) to generate template images from as much of the commissioning data as possible (2000 $\rm deg^2$), prior to the start of Operations, and use them to run DIA and alert production during LOY1. A modest proposal to increase the sky area covered by commissioning-data templates in at least a single filter to 10,000 $\rm deg^2$ via a “filler” scheduler program is presented. This study also finds that building templates on a monthly basis during LOY1 could increase the accessible sky area by 1000-2000 $\rm deg^2$ per month, and recommends this moderate up-scope option be revisited at the start of Operations.