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LM-SAL / aiapy

Python library for AIA data analysis
https://aiapy.readthedocs.io/en/stable/
BSD 3-Clause "New" or "Revised" License
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calibrate.update_pointing on HMI map? #85

Closed nabobalis closed 8 months ago

nabobalis commented 3 years ago

In GitLab by @jacobdparker on Feb 23, 2021, 10:15

I am attempting to run an HMI map through an hmi_prep.pro equivalent process. I see in the code that calibrate.register also takes a sunpy.map.Map of HMI data, but calibrate.update_pointing does not. Is this step not needed for HMI prep? If there is a relevant tutorial I am missing please let me know.

nabobalis commented 3 years ago

In GitLab by @markcheung on Feb 23, 2021, 10:29

I'm not aware of HMI pointing keywords requiring updates. Perhaps it's because limb fits are performed on individual images anyway before science level data products are produced. @mbobra would know much more about this.

nabobalis commented 3 years ago

In GitLab by @mbobra on Feb 23, 2021, 10:45

Yep, that's correct -- HMI pointing keywords don't require updates. And the SunPy map object takes care of the rest, e.g. any necessary rotating from CROTA2.

So you should be able to go straight to your analysis once the HMI data is in the SunPy Map. Let me know if you have any issues using the HMI data; I'm happy to help.

nabobalis commented 3 years ago

In GitLab by @jacobdparker on Feb 23, 2021, 10:46

Awesome! Thanks so much for the quick responses @markcheung and @mbobra .