Changes between Version 12 and Version 13 of 2MASS_info_in_DVO

Timestamp:

Jan 16, 2012, 2:17:58 PM (15 years ago)

Author:

eugene

Comment:

--

2MASS_info_in_DVO

@@ -3 +3 @@
 ''(update 2009/03/08 be EAM; originally based on 2008/03/10 emails from EAM to M. Liu)''
 
-* see the discussion of the 2MASS PSC format on the [http://www.ipac.caltech.edu/2mass/releases/allsky/doc/sec1_6b.html 2MASS web pages]
+Useful Links:
+
+ * see the discussion of the 2MASS PSC format on the [http://www.ipac.caltech.edu/2mass/releases/allsky/doc/sec1_6b.html 2MASS web pages]
+ * [source:trunk/Ohana/src/libautocode/def/measure.d Measure table description]
+ * [source:trunk/Ohana/src/addstar/src/get2mass_full.c Code which implements the definitions below]
 
 In the 2MASS PSC, all sources are described by the equivalent of a single database row, with separate fields in the row for J, H, and K specific measurements, and some fields common to all three filters.  For example, the coordinates and observing time are all given as a single value for all three filters.  In the conversion to the DVO representation, each measurement (JHK) of an object is converted to a separate DVO measurement entry.  All 2MASS sources are guaranteed to have all three measurements instantiated, but in some cases the measurements may be upper limits (non-detections in those filters).  Below, we list the relationship between the 2MASS information on the left side of the -> and the DVO measurement field on the right side.