sot / chandra_aca

Chandra Aspect Camera Tools
https://sot.github.io/chandra_aca
BSD 2-Clause "Simplified" License
0 stars 0 forks source link

Add fid offset support to drift #157

Closed jeanconn closed 10 months ago

jeanconn commented 11 months ago

Description

Add a function, get_fid_offset, to determine the expected y and z offsets of the fid lights from their positions, relative to the fid positions expected from the FEB07 fid characteristics (used in proseco and starcheck) and the current aimpoint drift model (which was last updated after the 2022:094 safe mode).

Interface impacts

Testing

Unit tests

Independent check of unit tests by [REVIEWER NAME]

Functional tests

For functional testing, there is a new unit test and this notebook shows the use of the new offsets reduces the fid residuals on historical data.

https://cxc.cfa.harvard.edu/mta/ASPECT/ipynb/chandra_aca_fid_offset/check_fid_offset.html