...
Reminder: Jim has updated gtobssim to allow it to process merged flight FT2 files. This is a great convenience for simulating as-flown pointing and livetime histories; formerly the gaps between the runs required simulations to be made run-by-run and then merged. See the Science Tools Update for October 14.
STOP PRESS There was a logic error in the code introduced in observationSim v8r2 to compute livetime information for merged FT2 files. See obs-13@jira. This is fixed in observationSim v8r3.
In v9r8 the gtorbsim tool is now the orbit/attitude simulator that derives from the Tako planning system in the FSSC. The simulation is somewhat idealized but it can make, e.g., pointed observations with earth avoidance and survey-mode observations with a user-specified rocking profile. The inputs are described in the User Workbook, although we do not have examples yet of all of the input files. The simulator was written by Giuseppe Romeo, and it is currently supported by John Vernaleo; Analia Cillis wrote the documentation.
...