Changes between Initial Version and Version 1 of gstarOutput

Timestamp:

Oct 14, 2010, 4:06:48 PM (16 years ago)

Author:

eugene

Comment:

--

gstarOutput

@@ +1 @@
+Data for stars is listed in order of distance from the requested location.
+
+basic output:
+
+star: (db-sequence)
+(ra) (dec) (distance) (Nmeasure) (positional-chisq) (average.flags)
+(objID) (catID) : see notes below
+g r i z y (these average filters depend on the db schema)
+(g:ave) (r:ave) (i:ave) (z:ave) (y:ave)
+(g:err) (r:err), etc
+(g:chisq) (r:chisq), etc
+... repeat for other stars
+
+-meas / -m add the following for each measurement of the star:
+
+(mag:cat) (mag:rel) (mag:err) (time) (RA.offset) (DEC.offset)
+(photflags) (dbflags) (photcode.number) (photcode.name) (FWHM_x)
+(FWHM_y)
+
+Notes:
+ db-sequence is not really useful (internal seq number that is not
+guaranteed to stay fixed)
+ ra & dec in decimal deg
+ distance from reference coordinate in arcsec
+ objID : unique object ID within this catalog (spatial subdivision of
+the dvo db tables; 32bit)
+ catID : unique catalog ID
+ g:ave : average magnitude for object (careful -- this may or may not
+be up-to-date wrt to all measurements in db; clipping and relative
+photometry may or may not have been applied)
+ g:err : formal error on g:ave
+ g:chisq : chi-square of g:ave calculation (assuming constant magnitude)
+ mag:cat : magnitude applying only nominal system zero point, without
+applying relative photometry offsets, if known
+ mag:rel : magnitude after relative photometry is applied.
+ mag:err : error on individual measurement
+ time of measurement
+ RA.offset, DEC.offset from average position in arcsec
+ photflags, dbflags : bit-flags from the photometry analysis or from
+database-level crawlers
+ photcode.number,name : what is the source of this magnitude?
+ FWHM_x,y in pixels