This is new version 2 NASA Goddard standard OMI NO2 data -  test version produced with off-line IDL code
The format is IDL save file.

Below is read example with IDL
These are pixel level 2 OMI data organized in 2D arradys: 1st dimension 60 across track positions;
2nd dimension represents scan line numbers from 14 Concatenated  daily orbits.
The file name format is yymmdd


mhatter.krotkov 37> idl
IDL Version 7.1.1 (linux x86_64 m64). (c) 2009, ITT Visual Information Solutions
Installation number: 3563-6.
Licensed for use by: TOMS SO2 GROUP

IDL> restore,'110703.sav'
IDL> help
% At $MAIN$          
AMFSTRAT        FLOAT     = Array[60, 23213]
AMFTROP         FLOAT     = Array[60, 23213]
CLOUDRADIANCEFRACTION
                FLOAT     = Array[60, 23213]
COLUMNAMOUNTNO2STRAT
                FLOAT     = Array[60, 23213]
COLUMNAMOUNTNO2TROP
                FLOAT     = Array[60, 23213]
COLUMNAMOUNTNO2TROPSTD
                FLOAT     = Array[60, 23213]
LATCORNER       FLOAT     = Array[60, 23213, 4]
LATITUDE        FLOAT     = Array[60, 23213]
LONCORNER       FLOAT     = Array[60, 23213, 4]
LONGITUDE       FLOAT     = Array[60, 23213]
PIXLNUM         LONG      = Array[60, 23213]
RELATIVEAZIMUTHANGLE
                FLOAT     = Array[60, 23213]
SOLARZENITHANGLE
                FLOAT     = Array[60, 23213]
VIEWINGZENITHANGLE
                FLOAT     = Array[60, 23213]
Compiled Procedures:
    $MAIN$

Compiled Functions: