Changes between Version 1 and Version 2 of HetProcedures/RA/nst
- Timestamp:
- Dec 30, 2023 7:17:52 AM (5 months ago)
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HetProcedures/RA/nst
v1 v2 2 2 3 3 The script {{{nst.py}}} will, after a guider is activated, repeatedly offset the guiding fiducial to compensate for the non-sidereal motion of a source on sky. 4 5 Note that this method allows non-sidereal sources to be tracked as long as they do not move more than ~10" during the observation (due to the limited field of view of the guider cameras). The FoV is ~20" but we assume you start from a well-centered guide star. For HPFACAM setups the actual range available may be even smaller due to the required fiducial offsets in the setup. Consult your local TO for more details/insight on optimizing this procedure. 6 4 7 5 8 To make this work, do the following: … … 32 35 }}} 33 36 34 By default it will make fiducial updates once per minute. You can change that with the command-line argument {{{--step}}} which accepts decimal values in minutes (0.25, 0.5, 2, whatever you want).37 By default it will make fiducial updates once per minute. You can change that with the command-line argument {{{--step}}} which accepts decimal values in minutes (0.25, 0.5, 2, whatever you want). 35 38 36 39 6. When the TO activates a guider, the script will report that it has identified which guider is active and will begin making automatic fiducial updates to that guider's fiducial until you stop it.