An project

Options for Alert Production in
LSST Operations Year 1

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

  • the DM System Science Team


This document reviews five options for alert production in LSST Operations Year 1 (LOY1), taking into account any implications on LSST formal requirements including up-scopes, down-scopes or explicit violations. The Data Management System Science Team’s preferred option for maximizing LSST science is to generate template images from as much of the commissioning data as possible (2000 $\rm deg^2$) and use them to run Difference Image Analysis and alert production during LOY1. A 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 also presented. As a potential moderate up-scope, this study presents an option to build interim templates on a monthly basis during LOY1, which could increase the accessible sky area by 1000-2000 $\rm deg^2$ per month, which can be reconsidered closer to the start of Operations.