Merged IRAC+MIPS GOODS catalogs 
M. Dickinson, R. Chary, + the GOODS team
See notes at the header of each file for short explanations of the columns.
GOODS IRAC and MIPS image data products are described at
  http://ssc.spitzer.caltech.edu/legacy/goodshistory.html

The IRAC measurements use a SExtractor catalog to detect sources in a weighted
sum of channels 1 + 2, with matched aperture photometry done in the four individual
IRAC bands.     Flux densities are measured through 4" diameter apertures, with a 
statistical correction to total integrated flux based on Monte Carlo simulations
adding artificial objects to the images using a realistic PSF and measured with
SExtractor as for the actual catalogs.   The aperture corrections are derived 
for sources that are compact relative to the IRAC PSF (intrinsic half-light 
radius < 0.5 arcsec).  This is appropriate for most faint galaxies in GOODS, 
but will underestimate the total flux for brighter, larger, resolved galaxies.
The IRAC flux errors ratios reported here are based purely on the background
shot noise, in the absence of source blending or confusion effects.  They are 
appropriate for isolated sources, but may underestimate (often by a lot) photometric
uncertainties for sources with nearby neighbors (an extremely common situation in
these data); use these with caution.   Objects with flux = -99 and flux error = -99
have no data in that IRAC band, or have data corrupted because the photometry
aperture extends into a region with no data (typically, near the edges of the
field of view).

Flags are given for the four IRAC bands, which are logical 'or' combinations 
of bit values, as in the GOODS Spitzer public release documentation at the SSC.
The values are: 

    bit       flag	     meaning
      0         0         >50% exptime
      1         1         <50% exptime
      2         3         <20% exptime
     16        16,17,19   object in a region which may be affected by muxbleed artifacts
     64        67         no data

24 micron fluxes and errors were measured by fitting point sources to the MIPS images
at the prior source positions from by the IRAC catalog (with some tolerance for positional
IRAC-to-MIPS position variations).  Every IRAC source covered by the MIPS imaging has 
a reported flux and error at 24 microns, whether or not it is significantly detected
(i.e., flux > N * flux error).  Some IRAC sources in the CDFS catalog have no MIPS
data, with fluxes and errors reported as -1.  Sources in crowded regions are fit 
simultaneously and deblended.  The fitted 24 micron fluxes are required to be non-negative
(but may be zero).  IRAC sources without MIPS data have MIPS ID numbers (idmips), 
and 24 micron fluxes and errors, equal to -1.   24 micron fluxes for a small number 
of low redshift, extended sources have been measured "manually" using larger apertures.