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AsÚ AVČR, v.v.i. ONDŘEJOV
2-m telescope

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How to prepare individual observational script

The tcsuser does not depend on prepared observational scripts (halfa, hbeta, infra etc.). It is possible to write down individual script if he keeps some compulsory commands and structure.

Example:

spc ga=10890
spc sf=1,dm=1
cint 40
fint 10

Here:

* the keyword ga adjusts the grating angle in inkrements of stepping motor. There is the relation between the grating angle (in decimal notation) and increments:


inkrements = grating angle x 360

   For example:
   The grating angle corresponding to the Hα is 30˚:15'=30.25 i.e. 30.25x360=10890.

* the keywords sf a dm denote and adjust the spectral filter and dichroic mirror.

* cint a fint predefine exposure time for the comparison spectrum and the flat field (in seconds).

   Remark: If the tscuser uses the command mflat for multiple exposure of the flat field then he has to write the exposure time as obligatory parameter anyway.
   For example mflat 10 5 is command for 5 flat fields and 10s each of them.