| System | alfosc |
| Command | tweakmos |
| Arguments | [-e] <MASKfile.fits> <FIELDfile.fits> |
| Type | DATA |
| Short Description | Comparison of mask and field positions of the fiducial stars, obtained from subsequent images of the mask and the sky |
| Long Description | The routine will first display the mask image, and the user has to identify the fiducial holes one by one, using the pointer (please follow the on-line instructions in the Sequencer terminal).
Position the cursor over a fiducial hole and press 'a' (for centroiding) or 'x' (for cursor coordinates). This can be done multiple times until satisfied. When ready to go to the next hole press 'n'. Repeat until all fiducial holes are identified, and then press 'q'.
When all useful fiducial holes are marked, the object field is displayed and the position of the first alignment hole will be marked with a blue circle. Now try to identify the corresponding star on the image.
Position the cursor over the star corresponding to the blue circle and press 'a' (for centroiding) or 'x' (for cursor coordinates). This can be done multiple times until satisfied. When ready to go to the next star-hole pair press 'n'. Repeat until all fiducial stars are identified.
For further information:
http://www.not.iac.es/instruments/alfosc/mos-mode/tgt-aqu-new.html
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| Depends On | |
| Used In | |
| Last Update | 2020-11-23 00:00:00 |
| Author | JHT |
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