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LSSTDESC/imSim
Add ComCam height maps.

In #405 @jmeyers314 added hight map information for the LSSTCam. This issue is to track work for the ComCam.
enhancement
Realism
  • cwwalter
  • Opened 
    on Nov 19, 2024
  • #483

LSSTDESC/imSim
Disambiguate RoTelPos, RotSkyPos, ROTPA etc

During the Operations Rehearsal we determined that our calculation of the sky position rotation was inconsistent with the one calculated by the scheduler. @jmeyers314 tried to understand the differences, ...
bug
  • cwwalter
  • Opened 
    on Nov 19, 2024
  • #482

LSSTDESC/imSim
artifacts around bright stars

I m seeing artifacts around bright stars. I ve attached an image showing an example. You can see what might be FFT artifacts as vertical/horizontal features. there are no detector effects here. I can ...
  • esheldon
  • 6
  • Opened 
    on Sep 9, 2024
  • #481

LSSTDESC/imSim
pupil_u, pupil_v being modified in RubinOptics.applyTo

I noticed that the pupil positions of the photon array are being modifed by RubinOptics.applyTo Here x, y are references to the pupil values, not copies https://github.com/LSSTDESC/imSim/blob/b6a633f03336f2e0afcd4009558fefb240e118e3/imsim/photon_ops.py#L92 ...
  • esheldon
  • 5
  • Opened 
    on May 17, 2024
  • #475

LSSTDESC/imSim
Revisit tree ring amplitudes for LSSTCam simulations

For the initial OR3 simulations, there were a lot of concerns regarding the strength of the tree rings appearing in the first round of ComCamSim images, so we reduced tree ring strength by factor ~10 for ...
  • jchiang87
  • 1
  • Opened 
    on May 16, 2024
  • #474

LSSTDESC/imSim
instance catalog read twice

I m seeing that instance catalogs are read twice. When galaxies are present its taking about 20minutes to read the catalog, so doubling this is significant. Below I added a timer to show the read time. ...
  • esheldon
  • 8
  • Opened 
    on Apr 22, 2024
  • #464

LSSTDESC/imSim
New WCS type?

The current WCS output does not include all the physics, so it is quite far off for some cases, such as when DCR is on. I ve got a PR #461 in to calculate centroids of objects, so I can get my own WCS ...
  • esheldon
  • 5
  • Opened 
    on Apr 11, 2024
  • #462

LSSTDESC/imSim
Use LsstCamSim instrument model

The Rubin team would like a different instrument model to be used for simulated LSSTCam data. Some discussion here. The plan is to implement a LsstCamSim instrument model in obs_lsst (in a similar fashion ...
  • jchiang87
  • 1
  • Opened 
    on Apr 10, 2024
  • #460

LSSTDESC/imSim
vignetted flats

Various folks looking at ComCamSim simulations associated with ops-rehearsal-3 have requested flats with vignetting applied. See the slack [thread](https://lsstc.slack.com/archives/C06G49VRXB4/p1711573685003339?thread_ts=1711497253.993019 ...
  • jchiang87
  • 1
  • Opened 
    on Apr 4, 2024
  • #458

LSSTDESC/imSim
Add missing keywords to raw FITS headers

For the ops-rehearsal-3 activities, a number of keywords describing the observations were noted as missing, specifically the null ones in this list (see the post in slack): RA: 124.82881462031425 DEC: ...
  • jchiang87
  • 10
  • Opened 
    on Mar 23, 2024
  • #457
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