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findNearestFieldInVis

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Returns nearest field in a measurement set to a specified absolute position

Usage: 

au.findNearestFieldInVis(vis, radec, returnSeparation=False)
Inputs:
  • radec: sexagesimal string
Returns:
  • field ID (and separation in degrees, if returnSeparation==True)

Examples: 

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
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Topic revision: r1 - 2016-02-09, ToddHunter
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