au.findNearestFieldInVis(vis, radec, returnSeparation=False)Inputs:
CASA <11>: au.findNearestFieldInVis('uid___A002_X99c183_X25b6.ms','12:00:00 -5:00:00') Out[11]: 0 CASA <13>: au.findNearestFieldInVis('uid___A002_X99c183_X25b6.ms','12:00:00 -5:00:00',returnSeparation=True) Out[13]: (0, 41.46463155756793)-- ToddHunter - 2016-02-09