CAT Processing Codes CAT 7.2.1 writes a CAT history string to output ENVI headers. The CAT history string encodes major processing steps with 3-letter codes separated by underscores. Some codes append associated subsymbols (lower case letters and numerals) designating details of that processing step. CAT CAT conversion from PDS RIF Radiance -> I/F conversion PHC Photometric correction Subsymbols: single lower-case letter... c = cosine correction ATC Atmospheric correction Subsymbols: pattern = xDyI; x = method letter, D=version digit, y = method info string x = v, volcano scan scaling v1 = volcano scan classic; v2 = volcano scan classic + artifact patch y: wavelength pair code + volcano scan observation ID: p -> Pelkey wavelengths m -> McGuire 2-wavelength pair n -> McGuire multi-wavelength set I: Volcano scan ID, 4 or 5 hex characters, or AUTO for auto-selected tile processing, or SHIFT for bench temperature shift matching THC Thermal correction EPF EPF Project segments SUM Summary parameters (multispectral) HSM Summary parameters (hyperspectral) MAP Map projection CCS CIRRUS destripe CCK CIRRUS despike RST Remove stripes FSP Flatten summary parameters CON mro_crism_continuum_cube, continuum cube RAT mro_crism_continuum_cube, ratio cube CPR mro_crism_continuum_cube, parameter cube Examples: CAT_PHCc_ATCv1p061C4_CCS_CCK Converted PDS to CAT. Photometric corection (cosine). Atmospheric correction using volcano scan version 1, Pelkey wavelegths, with volcano scan 61C4. CIRRUS with destripe & despike CAT_RIF_ATCv2m08608_CCS_SUM_FSP Converted PDS to CAT. Radiance converted to I/F. Atmospheric correction using volcano scan version 2, (version 2 -> includes artifact patch) McGuire wavelegths, VS ID 8608. CIRRUS with destripe only. Multispectral summary parameters Flatttened.