View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0002062 | CCdciel | General | public | 19-01-24 13:08 | 19-01-24 16:14 |
| Reporter | han | Assigned To | Patrick Chevalley | ||
| Priority | normal | Severity | feature | Reproducibility | have not tried |
| Status | resolved | Resolution | fixed | ||
| Target Version | 1.0 | ||||
| Summary | 0002062: Feature: FITS keyword for altitude | ||||
| Description | For image HFD analyses it could be useful to have the altitude. If already available, could it be added to the FITS header? For completeness the azimuth could be added. This azimuth could be used for sky background analyses in diffferent directions but use will be limited. Looking to the existing keywords, I would propose to use: CENTALT – nominal Altitude of center of image in degrees. CENTAZ – nominal Azimuth of center of image in degrees. In use by other software programs: MaximDL OBJCTALT – nominal altitude of center of image OBJCTAZ – nominal azimuth of center of image CENTAZ – nominal Azimuth of center of image in degrees. CENTALT – nominal Altitude of center of image in degress. SBIG (2003) CENTAZ String - Azimuth in degrees of the center of the image in degrees. Format is the same as the OBJCTDEC keyword. CENTALT String - Altitude in degrees of the center of the image in degrees. Format is the same as the OBJCTDEC keyword. SGP OBJCTALT= 40.4226 / Altitude of the object CENTALT = 40.4226 / Altitude of the object | ||||
| Tags | No tags attached. | ||||
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Yes this is a good point. The best position to give here is probably at the time of middle exposure. I not see any information about that in the Sbig document. |
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I think there is no need to calculate the middle of the exposure. At the end or start of exposure is fine for me. |
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This is done : https://github.com/pchev/ccdciel/commit/6bf32f3efa0ad730b8c857301f42cc01fd196a13 I add both CENTxx and OBJCTxx if this can help more software. I also take the occasion to add the airmass that was not present on Ascom images. This is for mid-exposure, not something difficult to do and this can help for photometry application that also need this value. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 19-01-24 13:08 | han | New Issue | |
| 19-01-24 13:32 | Patrick Chevalley | Assigned To | => Patrick Chevalley |
| 19-01-24 13:32 | Patrick Chevalley | Status | new => assigned |
| 19-01-24 13:32 | Patrick Chevalley | Note Added: 0005278 | |
| 19-01-24 13:37 | han | Note Added: 0005279 | |
| 19-01-24 16:14 | Patrick Chevalley | Status | assigned => resolved |
| 19-01-24 16:14 | Patrick Chevalley | Resolution | open => fixed |
| 19-01-24 16:14 | Patrick Chevalley | Target Version | => 1.0 |
| 19-01-24 16:14 | Patrick Chevalley | Note Added: 0005281 |
