search

ratt-ru / simms

Creates empty measurement sets using the the CASA simulate tool.
GNU General Public License v2.0
7 stars 8 forks source link

Explore generating MSs without CASAPY #13

Closed SpheMakh closed 8 years ago

SpheMakh commented 9 years ago

It may be a time consuming exercise, but worth looking into nonetheless. This is what would be required: 1) Convert ENU -> ITRF (Simple) 2) ITRF -> UVW (Simple) 3) Create MS table from scratch, take into account all subtables and columns (This would be the time consuming part) 4) Automatically determining the start times is also not trivial, but must be possible since CASA has done it.

1,3,4 will require pyrap

o-smirnov commented 9 years ago

But isn't this exactly what makems tries to do (albeit not perfectly...)? Might it not be easier to fix makems?

As for #4, pyrap.measures is your (awkward but powerful) friend.

SpheMakh commented 9 years ago

I really have to befriend pyrap.measures, I can't ignore this for much longer. I agree that is what makems tries to do, but I think it can be much simpler in python (using pyrap). Do you know if its possible to get access to the simulator tool in CASA, in the same way as the table, measures, quanta tools; that would be the simplest solution.

SpheMakh commented 8 years ago

Will reconsider this when I have time.