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@ebertin reported that some sources get inexplicably large uncertainty values for their model fitting magnitudes. This doesn't seem to be limited to faint sources or sources that are missing data.
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I will try to follow up what I found now we have sim12 and the configuration file.
The "good news" is that I can reproduce when using a single frame. Indeed, levmar has a higher scatter for bright so…
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The dr9b reductions have a couple of issues in the Sersic fit outputs. The first is the trivial bug that the output radii are the natural log of the radius rather than the radius in arcsec. More sub…
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Models (such as Sersics) are cropped at the x and y boundaries of the fitting window.
This introduces anisotropic residuals and therefore small angle-dependent biases in best fit model parameters.
T…
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When a HOSTLIB file with 2 Sersic components is used, the output head file has some host galaxies with positions (hostgal_ra, hostgal_dec) set to -999 and magnitudes (hostgal_mag columns) set to 666.
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One possible application of these models is for the calibration of shape measurement methods. In order to test that the models are of high enough quality for this purpose, I guess the best strategy wo…
EiffL updated
4 years ago
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In `$SNANA_DEBUG/mvincenzi/DESSIMBIAS5YRIA_UVIR_G10` there are all the input files I used to run a SNe Ia simulation using `sim_SNmix`
One of the jobs aborted with this error:
```
FATAL ERROR …
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Currently `galsim.VonKarman` builds or retrieves from cache a lookup table for the real-space surface brightness profile upon construction. During table construction, values for the `_hlr` and `_step…
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I know we've been keeping track of changes on the wiki but I thought to create an issue as in previous DRs--
https://desi.lbl.gov/trac/wiki/DecamLegacy/DR9#ChangesfromDR8
A couple additional updat…
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## Description
Assign profile to galaxies.
## Inputs
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## Outputs
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## References