howto:astrometry
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
howto:astrometry [2009/11/29 09:15] – wildi | howto:astrometry [2009/11/29 09:17] – wildi | ||
---|---|---|---|
Line 2: | Line 2: | ||
RTS2 is able to support on-line astrometry, with corrections being fed back to the telescope as correction parameters, thus significantly improving the telescope pointing. Following is list of parameters which affect astrometry, and a guide how to set them up. | RTS2 is able to support on-line astrometry, with corrections being fed back to the telescope as correction parameters, thus significantly improving the telescope pointing. Following is list of parameters which affect astrometry, and a guide how to set them up. | ||
+ | For rts2-camd-dummy and rts2-camd-fli specify all parameters in file /// | ||
- | * **XPLATE** and **YPLATE** - size of pixel in arcseconds in X and Y direction. This is specified by //--plate < | + | * **XPLATE** and **YPLATE** - size of pixel in arcseconds in X and Y direction. This is specified by //--plate < |
* **FLIP** - that depends on readout direction and used optics. Can be also regarded as indication of negative **XPLATE** - e.g. arcseconds rose in different direction along X axis then is common. It is 1 for most cameras, the only exception so far is Andor, which have 0 flip for EM channel and 1 for non-EM channel. This is set in the driver and unless you put extra mirror in optics, should be correct. If needed, you can set flip with //--flip// parameter passed to camera daemon. Again, **FLIP** is visible in **rts2-mon**, | * **FLIP** - that depends on readout direction and used optics. Can be also regarded as indication of negative **XPLATE** - e.g. arcseconds rose in different direction along X axis then is common. It is 1 for most cameras, the only exception so far is Andor, which have 0 flip for EM channel and 1 for non-EM channel. This is set in the driver and unless you put extra mirror in optics, should be correct. If needed, you can set flip with //--flip// parameter passed to camera daemon. Again, **FLIP** is visible in **rts2-mon**, |
howto/astrometry.txt · Last modified: 2009/11/29 00:00 (external edit)