| | 54 | * MOPS detection woes: |
| | 55 | * Inserted fake asteroids from Larry into chip stage products, manually ran through warp and diff, and shipped results. Based on detection efficiency measurement in psphot, only about 35% of asteroids (about 100 asteroids) from the input set are bright enough for detection. |
| | 56 | * Found SDSS report of 0.4 mag bias in asteroid photometry catalogues |
| | 57 | * MOPS photometry corrections don't appear to correspond to asteroid colours measured by SDSS |
| | 58 | * Re-running fake asteroid data with larger (10x) set of inputs from Larry |
| | 59 | * Depth of diff photometry appears to be g ~ 21 mag --> V ~ 20.6 mag. Chip is going to g ~ 21.9 mag, so should be doing better. |
| | 60 | * Shallow depth appears to be resolved with more careful combination of variance+covariance at diff stage. Recovered around 0.8 mag. Sent detailed report to ps-ipp-users and ps-mops-dev. Requires further work before merging into production system, especially worried about impact on Magic |
| | 61 | * Determined correct photometric corrections for MOPS: 1 mag offset in g appears to be ~0.4 mag catalogue bias + 0.5 mag photometric correction error. |
| | 62 | * Discovered a bug in "stacktool -definebyquery": wasn't grouping by tess_id. Inputs to MD.preDM.20100409 stacks have heterogeneous tess_ids, but this hasn't affected the stacks produced because "stacktool -inputskyfile" ensures the correct tessellation is used. Set failures (from insufficient inputs with the correct tess_id) to 'drop'. |
| | 63 | |
