Pointing Model Logging Commands

This set of commands is used to log the current nominal pointing (in encoder counts), current time, and known star position. The output format is used by both the idl two-star pointing routines and the Tpoint package. For more information on how to construct a pointing model, see Chapter 5.

• rstarlog -r ra (dec. hrs.) -d dec (dec. deg.) [-j epoch]  - log the current pointing

  The rstarlog command logs the current telescope pointing, local mean sidereal time, and star position. This should be used when the telescope is approximately tracking a known bright star.

• rstarlist                        - print the currently logged stars

  The rstarlist command prints to screen the star records that have already been logged.

• rstardel -r record               - delete a star record

  The rstardel command deletes a record from the list of logged stars. This should be used to delete a mistaken entry.

• rstarwrite -f filename           - output the logged stars to disk

  The rstarwrite command outputs a Tpoint formatted file to disk with the currently logged stars from rstarlog. The standard extention is .dat for a Tpoint file, although this is flexible.