Expose pointing table from metafits

MWATelescope / mwalib

Library to read Murchison Widefield Array (MWA) raw visibilities, voltages and metadata into a common structure

Mozilla Public License 2.0

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Expose pointing table from metafits #30

Open gsleap opened 3 years ago

gsleap commented 3 years ago

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

cjordan commented 3 years ago

What do you mean by pointing table? Sweet spots?

andreww5au commented 3 years ago

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.

cjordan commented 3 years ago

Thanks!