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michgradstudent |
06/23/2016 01:45PM (Read 697 times)
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Status: offline
Registered: 06/20/2016
Posts: 5
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Doe anyone know what the values MAG_LERR and MAG_UERR in the ellipse output file represent?
They seem rather small, so I thought maybe that they represent the fraction of MAG which the upper and lower limits are.
e.g. MAG = 21.1 MAG_LERR = 0.0108 MAG_UERR = 0.0107, and the upper limit of the magnitude error is MAG_UERR times MAG.
However its also possible that they represent the actual upper and lower limits:
e.g. MAG = 21.1 plus/minus 0.0107 / 0.0108
The ellipse help page only says "lower and upper magnitude errors" which I think is a little unclear.
Thanks!
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