SPM4 Catalog files:
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AAA_README.txt         = this file

readme_spm4.txt        = detailed description of the SPM4 catalog and files
boxcut_spm4.f          = Fortran code for rectangular cutouts from SPM4
match_spm4.f           = Fortran code for matching the SPM4 by RA,Dec

rsNN.asc (NN=20 to 89) = main catalog files, in 1-deg Declination strips **
rsNN.ind (NN=20 to 89) = index of record numbers at every 1-deg of RA

2massxid/rsNN.2mx      = auxiliary 2MASS cross-identification files ***


** The catalog is split into 1-degree declination strips, rsNN.asc.bz2, 
that have been compressed using bzip2 in this online version.

*** The auxiliary 2MASS cross-id files are in their own directory and these
too have been compressed using bzip2, (i.e., 2massxid/rsNN.2mx.bz2).

See readme_spm4.txt for a more thorough explanation of the catalog files.

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