Download TCS3 Operators Guide

1201_Operators_Guide.doc
Version: 2014-12-03
4.1.3 Whenever the telescope is slew to an object with 'bad' coordinates:

Optional: slew to a nearby object that as a good coordinate and do 4.1.2 . This will adjust the pointing
map for the current telescope position.

Slew to your ‘bad’ object.

Center the star on the cross hairs by the adjusting base position, (using t3remote User TAB, and click
arrow in 'Base' mode ). This preserves the pointing map, and RA and DEC sky coordinate values.

If you center on an bad object by adjusting the pointing map, you degrade the pointing map, and the sky
RA and DEC position.
4.2 Pointing FAQ:
1. Where and how are the point coefficients stored? And can I modify them?
After a pointing run, the resulting pointing map is written to ~/current/ic/.tcs-init. The is the startup file for the
IC program. You should not modify these coefficients, as we wish to keep the original pointing map.
A pt.save command writes the MAdj value to ~/current/ic/pt.save.txt. The pt.save.txt file is executed at IC
startup. You can edit/delete this file to change the initial MAdj values.
2. Where can I learn more about TPOINT?
The tcs3’s user manual page has a link to the IRTF copy of the TPOINT manual.
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