Verification Datasets Telecon
Attendees: Colin, Simon, Hsin-Fang, David, Robert
Simon:
- twinkles database at NERSC
- conversation with H-S and Paul about fringe correction
- a discussion of multiple fringe frames
- Robert will post a write-up of this on community
Colin:
- Bryce, Lynne and others are trying to stack shifted images to detect solar system objects
below the single-visit detection limit, using old SuprimeCam which had the right cadence - Colin running the data through the stack, had to make and push some fixes due to bitrot
Hsin-Fang:
-
working on how the DECam calibration data is used
-
DECam similar to CFHT in that it uses already-made calibration products, HSC makes them
-
do we need multiple mappers for each obs package? want consistent calibration products
-
Robert gave an overview of monocam, single LSST-chip on USNO telescope, various chip
characterization and science projects
David:
- looking at ubercal calibrated calexp COSMOS data, scatter in g-band on bright-end is ~1%
which is better than it was before (~3-5%), but think still could be better - Robert suggested using aperture photometry instead
- look at aperture to PSF on the bright end
- PSF could be less well-constrainted on edge
- spatial order = 2, quadratic solution, maybe need less
Robert:
- looking at monocam data with Merlin
