Difference between revisions of "SHIPsPhot"
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! scope="col"| Outer Sky Radius (") | ! scope="col"| Outer Sky Radius (") | ||
! scope="coI"| Aperture Correction | ! scope="coI"| Aperture Correction | ||
| + | ! scope="col"| Pixels | ||
|- | |- | ||
|70 microns | |70 microns | ||
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|19.2 | |19.2 | ||
|0.7331 | |0.7331 | ||
| + | |8 | ||
|- | |- | ||
|100 microns | |100 microns | ||
| Line 25: | Line 27: | ||
|19.2 | |19.2 | ||
|0.6944 | |0.6944 | ||
| + | |8 | ||
|- | |- | ||
|160 microns | |160 microns | ||
| Line 31: | Line 34: | ||
|25.6 | |25.6 | ||
|0.6602 | |0.6602 | ||
| + | |5.3 or 6 (if 5.3 is rejected by APT) | ||
|} | |} | ||
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==Herschel/PACS optical properties== | ==Herschel/PACS optical properties== | ||
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[[File:APT-parameterss.png|300px|Screen capture of APT parameter settings.]] | [[File:APT-parameterss.png|300px|Screen capture of APT parameter settings.]] | ||
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| + | |||
| + | |||
| + | ==Reporting Photometry== | ||
| + | The type of information to be included in the photometry file as captured during the June 2013 visit. | ||
| + | |||
| + | [[File:SHIPsDataTableRules.txt]] | ||
Latest revision as of 22:36, 28 August 2013
Purpose of this page:
- Provide photometry references for Herschel specific photometry
Contents
Aperture Photometry Parameters
| Filter | Aperture Radius (") | Inner Sky Radius (") | Outer Sky Radius (") | Aperture Correction | Pixels |
|---|---|---|---|---|---|
| 70 microns | 9.6 | 9.6 | 19.2 | 0.7331 | 8 |
| 100 microns | 9.6 | 9.6 | 19.2 | 0.6944 | 8 |
| 160 microns | 12.8 | 12.8 | 25.6 | 0.6602 | 5.3 or 6 (if 5.3 is rejected by APT) |
Herschel/PACS optical properties
- PACS quick summary guide (BEWARE: arc-seconds vs pixels). SHIPs data is taken at 20"/sec scan speed. Take an average between the long and the short side of the PSF.
APT parameters
| Parameter/Setting | SHIPs value | Comments |
|---|---|---|
| Aperture Values | As in above table recomputed to pixels. | |
| Select source algorithm | Model 0 | |
| Select sky algorithm | Model B | |
| Use centroid in photometry calculation? | Yes. Box is checked. | |
| Automatically snap aperture to centroid? | Yes. Box is checked. |
Reporting Photometry
The type of information to be included in the photometry file as captured during the June 2013 visit.
Photometry Assignment
The Big Picture
- Gather relevant and previously available photometry on NGC 281 (DONE, except Spitzer)
- Gather images from previous surveys (DONE)
- Herschel Images (DONE, but may be reprocessed)
- Aperture Photometry
- PSF photometry (Preliminary version, calibration missing).
- Check Aperture photometry for bad sources, missed sources.
- Create flags for all sources.
- Check Aperture vs. PSF photometry. Select one or the other for each protostar.
- Finalize Herschel photometry
- Merge all photometry.
