Opened 16 years ago
Closed 13 years ago
#49 closed task (fixed)
uvcopy can copy gain, leakage and bandpass from continuum band to zoom bands
| Reported by: | MarkWieringa | Owned by: | MarkWieringa |
|---|---|---|---|
| Priority: | major | Milestone: | 11b. Release Stage 3. |
| Component: | MIRIAD - CABB branch | Version: | |
| Keywords: | Cc: | ||
| Estimated Number of Hours: | 8 | Add Hours to Ticket: | 1 |
| Billable?: | yes | Total Hours: | 0 |
Description
uvcopy needs to be able to copy the gain, leakage and bandpass calibration from the parent continuum band to the zoom band.
See: gpcopy changes
Change History (4)
comment:1 Changed 16 years ago by
| Estimated Number of Hours: | 5 → 8 |
|---|
comment:2 Changed 15 years ago by
| Milestone: | 8. Release Stage 1 → 11b. Release Stage 3. |
|---|
comment:3 Changed 14 years ago by
| Add Hours to Ticket: | 0 → 1 |
|---|
First try of this indicates that this works ok. Copied continuum gains and bandpass from 2x2GHz bands to 2 zoombands consisting of 4 blended zooms each. In auto correlations this removes slopes across zoomband, may also introduce very slight wiggle in some spectra (there's only 3 continuum channels across the 2.5 MHz of the zoom spectrum). Interpolation seems smooth. Need to build in a check to warn if gain/bandpass from wrong ifchain is applied to a zoomband.
comment:4 Changed 13 years ago by
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Building in a check for ifchain was investigated, but it seems incompatible with the way gpcopy works. gpcopy doesn't actually look inside the uv files it works with, it just reads and copies headers and calibration tables. It's up to the user to make sure the operations performed make sense.
The milestone here is wrong. Cross-calibration of zoom bands is in release 3.