howto:focus
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howto:focus [2009/05/02 20:52] – Added variable description pkubanek | howto:focus [Unknown date] (current) – external edit (Unknown date) 127.0.0.1 | ||
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====== Focuser API ====== | ====== Focuser API ====== | ||
- | Focuser | + | Focuser |
* **FOC_POS** This variable show actual focuser position. If set, it will cause focuser to move to set position. If focuser is moved to position, it shows the actual focuser position. | * **FOC_POS** This variable show actual focuser position. If set, it will cause focuser to move to set position. If focuser is moved to position, it shows the actual focuser position. | ||
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A working solution is to set up the object detection (with '' | A working solution is to set up the object detection (with '' | ||
- | Automatic focusing in RTS2 is solved using a combination of a observation scripts and observation processing. In particular, there is a special target which needs to be executed in order to (re)focus the telescope. | + | Automatic focusing in RTS2 is solved using a combination of observation scripts and observation processing. In particular, there is a special target which needs to be executed in order to (re)focus the telescope. |
=== Getting the minima === | === Getting the minima === | ||
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and if linear is not the best, the best fit of these three | and if linear is not the best, the best fit of these three | ||
functions is proposed as a solution. | functions is proposed as a solution. | ||
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==== obs_process integration ==== | ==== obs_process integration ==== | ||
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=== set the position === | === set the position === | ||
- | To set the position computed from the data, one has to execute the following | + | To set the position computed from the data, one has to execute the following |
'' | '' | ||
+ | '' | ||
The other imaginable ways like '' | The other imaginable ways like '' | ||
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* the way of feeding back the computed position is not definitively solved | * the way of feeding back the computed position is not definitively solved | ||
- | * there was bug related to scheduling of a command to move the focuser, which resulted in incorrect values in the fits headers. (i have no idea if this is already solved or it just happens randomly) | + | * there was a bug related to scheduling of a command to move the focuser, which resulted in incorrect values in the fits headers. (i have no idea if this is already solved or it just happens randomly) |
* we do not care if the astrometry is successfull, | * we do not care if the astrometry is successfull, | ||
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howto/focus.1241290330.txt.gz · Last modified: 2009/05/02 00:00 (external edit)