Expose pointing table from metafits

Question

Expose pointing table from metafits

gsleap opened this issue 3 years ago · comments

Greg Sleap commented 3 years ago

Some metafits files will have a pointing table which would be necessary for some preprocessing.
See:

Christopher H. Jordan commented 3 years ago

Thanks!

Christopher H. Jordan · Answer 1 · Thu Jul 01 2021 16:53:29 GMT+0800 (China Standard Time)

What do you mean by pointing table? Sweet spots?

Andrew Williams · Answer 2 · Thu Jul 01 2021 17:01:02 GMT+0800 (China Standard Time)

The new code to generate metafits files for MWAX to use internally includes an extra HDU in the metafits file that has alt/az/distance information calculated for the pointing centre every 4 seconds, for the duration of the observation. Brian's code will interpolate and use that data for fringe stopping.