DM-12584 "clarify the role of fake source implantation in Level 1 detection efficiencies"

DM-19308 "Detection efficiencies for Difference Images" (child task of DM-12584)

This project will partially address ticket PST-17


In this context, a “Detection Efficiency” is:

  • the probability that the transient/variable component is detected in difference imaging
  • a function of the variable flux, local surface brightness, image quality, airmass, etc

Melissa, Eric, Leanne 

  • Summarize existing requirements in LSST documentation regarding detection efficiencies
  • Identify scientific opportunities and risks that depend on DM-provided detection efficiencies
  • Explore technical pathways to the generation of detection efficiencies (i.e, fake source injection)
  • GOAL: Recommend the DM deliverable, and its creation method, for detection efficiencies
  • EXPECTED OUTCOME: A project-facing document (DMTN) which details the above.


Project Updates in Reverse Chronological Order.

Fri Jul 19: DM-19308 has been updated, as has the draft DMTN, and a slide deck for future presentation at a DM-SST meeting created and uploaded to DM-19308.

Wed June 12: DM-19308 has been set to "in progress" and work on the draft DMTN is proceeding at https://github.com/MelissaGraham/dmtn-tbd-deteffs

Initial Notes To Do Next:

  • Check that the OSS requirements properly flow-down to the DMSR
  • Circulate "existing requirements" summary to solicit feedback
  • Then proceed with the science drivers and implementation options
  • re-verify with KT that the computational system is sized to handle fake injection 



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