GLIMPSEII source designation:

  Archive=> SSTGLMA GLLL.llll+-BB.bbbb
  Catalog=> SSTGLMC GLLL.llll+-BB.bbbb

Designation is
  SST = Spitzer Space Telescope
  GLM = GLIMPSE, GLIMPSEII, and GLIMPSE-3D projects
  A   = more complete Archive
  C   = highly reliable Catalog
  G   = Galactic coordinates
  LLL.llll = Galactic longitude (degrees) of the source
  +-BB.bbbb = Galactic latitude (degrees) of the source

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Close source flag:

  0    no sources in the Archive within 3" of the source
  1    sources in the Archive between 2.5" and 3" of the source
  2    sources in the Archive between 2.0" and 2.5" of the source
  3    sources in the Archive between 1.5" and 2.0" of the source
  4    sources in the Archive between 1.0" and 1.5" of the source
  5    sources in the Archive between 0.5" and 1.0" of the source
  6    sources in the Archive within 0.5" of the source
================================================================================
(footnote 1)

Source Quality Flag (sqf)

  bt = bit in sqf
  value = sum of 2^(bt-1) i.e. bt 1 corresponds to 2^0=1

  0  OK - no problems encountered

 bt            Flag                                  Source       
  1  poor pixels in dark current                      SSC        
  2  flat field applied using questionable value      SSC        
  3  latent image                                     SSC,2MASS      
  4  sat star correction                              2MASS            
  7  muxbleed correction applied                      GLIMPSE   
* 8  hot, dead or otherwise unacceptable pixel        SSC,GLIMPSE    
  9  muxbleed > 3-sigma above the background          GLIMPSE,2MASS     
 10  allstar tweak positive                           GLIMPSE    
 11  allstar tweak negative                           GLIMPSE  
 13  confusion in in-band merge                       GLIMPSE   
 14  confusion in cross-band merge (IRAC)             GLIMPSE     
 14  confusion in cross-band merge (2MASS)            GLIMPSE     
 15  column pulldown correction                       GLIMPSE       
 16  banding correction                               GLIMPSE       
 19  nonlinear correction not applied                 SSC        
*20  saturated star wing region                       GLIMPSE,2MASS         
*30  edge of frame (within 3 pixels of edge)          GLIMPSE    
    
    For 2MASS data, the following flags from the 2MASS All-Sky PSC are mapped
    into bits 3,4,20 and 9 in the source quality flag
    see http://www.ipac.caltech.edu/2mass/releases/allsky/doc/sec2_2a.html#cc_flg
    for more information about these 2MASS flags. Users should consult the 2MASS
    All-Sky Point Source Catalog for the complete information about the source, 
    including all of their quality flags.

    2MASS Flag       =>        SQF
    ----------                 ---
    "p" persistence         latent (bit 3)
    "c" photom confusion    corr sat star wing (bit 4)
    "d" diffraction spike   uncorrectable sat star (bit 20)
    "s" electronic stripe   muxbleed (bit 9)

bit values:
bt 1 => 1; 2 => 2; 3 => 4; 4 => 8; 5 => 16; 6 => 32; 7 => 64; 8 => 128  
bt 9 => 256; 10 => 512; 11 => 1024; 12 => 2048; 13 => 4096; 14 => 8192; 15 => 16384; 
bt 16 => 32768; 17 => 65536; 18 => 131072; 19 => 262144; 20 => 524288;
bt 30 => 536870912

* Note that sources with flags 8, 20, and 30 have already been removed from
 Catalog or the magnitude nulled.
================================================================================
(footnote 2)

Flux calculation method flag (mf):

 The flux calculation method flag indicates if some fluxes were omitted from the means:

     mf=0:  all fluxes good
     mf=1:  some discrepant fluxes discarded 
     mf=2:  all fluxes were discrepant, so you get them all, and use this source
            carefully (the sqf will have things set too in this case, so you can cull
            on that instead if you want)
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