All MIPS post-BCD files have a basic filename pattern that is similar to the BCD files: SPITZER_M+channel_aorkey_dcenum _version_Enum_type.suffix. The letter ''E'' in this example stands for ''ensemble'' product, but it can also be an ''A'' for ''ancillary'' product. In the case of an ensemble product, ''dcenum'' refers to the first dce that was used in the ensemble creation, ''version'' refers to the version of that first dce, and ''Enum'' is the ensemble number.
The most important post-BCD file types for most users are the mosaicked files; these provide at the very least a quick look at your data. Most Ge users in particular will want to regenerate the mosaics along with the rest of the post-BCD products with parameters customized for a particular application; see section 8.2 below for some examples.
A complete list of the file types for MIPS-24 are listed in Table 6.1, the file types for MIPS-70 and MIPS-160 are listed in Table 6.2. The file types for MIPS-SED are listed in Table 6.4, located within the MIPS-SED chapter. Additional information on these files, as well as any updates to this information between document releases, is posted on the IRSA MIPS website.
Table 6.1: Complete list of file types for MIPS-24.
Abbreviation
Type
Contents of file
*raw.fits
Raw
Raw pixel data with final product header and pointing; 1st plane is slope, 2nd plane is the first difference image.
*bcd.fits, *bcd.log
BCD
BCD image (and log file from its creation); saturated values in the slope image have been replaced by the first difference values above a threshold.
*bunc.fits
BCD
Error image associated with the BCD image.
*brmsk.fits
BCD
Outlier mask image associated with BCD.
*bbmsk.fits
BCD
Bit mask associated with BCD, where different bits signify important characteristics of the data; bit definition in Table 6.7.
*slope.fits
BCD
Calibrated BCD slope image.
*slunc.fits
BCD
Error image associated with the slope image.
*diff.fits
BCD
Calibrated first difference image.
*dfunc.fits
BCD
Error image associated with the first difference image.
*ebcd.fits
EBCD
Enhanced BCD (see section 6.3.4)
*ebcd.log
EBCD
Enhanced BCD log
*ebmsk.fits
EBCD
Enhanced BCD mask
*ebunc.fits
EBCD
Enhanced BCD Uncertainty
*ediff.fits
EBCD
Enhanced BCD Difference
*edunc.fits
EBCD
Enhanced BCD Difference Uncertainty
*ermsk.fits1
EBCD
Radhit (rejection) Mask
*eslpe.fits
EBCD
Enhanced BCD Slope
*eslun.fits
EBCD
Enhanced BCD Slope Uncertainty
*maic.fits, *munc.fits, *mcov.fits
Post-BCD
Output fits images and log for mosaic routine; in order: image, uncertainties, and coverage map.
*bmed.fits
Post-BCD
Median of all stacked BCDs in AOR
*bmedu.fits
Post-BCD
Uncertainty in median BCD stack
*gflat.fits
Calibration
Gain flat, spot-free from campaign flat. (for EBCDs)
*gfmsk.fits
Calibration
Gain flat mask. (for EBCDs)
*sflat.fits
Calibration
Shifted spot flat cube. (for EBCDs)
*sfunc.fits
Calibration
Spot-flat uncertainty. (for EBCDs)
*sfcsm.fits
Calibration
Spot-flat CSM_PRED array, a 1-d array. (for EBCDs)
*flat.fits
Calibration
Gain flat for BCD (not EBCD) pipeline
*fcmask.fits
Calibration
Gain flat field mask for BCD (not EBCD) pipeline.
*spotmap*.fits
Calibration
Spotmap for each BCD matched from a large library of spotmaps.
*dark*sur1.fits
Calibration
Dark for DCENUM=0
*dark*sur1_cmask.fits
Calibration
Dark mask for DCENUM=0
*dark*sur1_uncert.fits
Calibration
Dark uncertainty for DCENUM=0
*dark*sur2.fits
Calibration
Dark for DCENUM>0
*dark*sur2_cmask.fits
Calibration
Dark mask for DCENUM>0
*dark*sur2_uncert.fits
Calibration
Dark uncertainty for DCENUM>0
*lincal.fits
Calibration
MIPS 24um non-linearity correction factors
*lincal_cmask.fits
Caibration
Non-linearity mask
*rowfluxcorr.fits
Calibration
Rowdroop correction
*rowfluxcorr_uncert.fits
Calibration
Rowdroop correction uncertainty
*PRF_mosaic.fits
Calibration
TinyTim generated PRF file for use with profile fitting
*pmask.fits
Calibration
Bad pixel mask. (See section 6.5)
*cdelt12_distort.tbl
Calibration
Cdelt12 distortion coefficents
*fluxconv.tbl
Calibration
Calibration data file used to convert to MJy/sr
*instrument_fov.tbl
Calibration
MIPS field of view parameters
*mirrorparameters.tbl
Calibration
Mirror parameters for pointing transfer
*PRF_Map.tbl
Calibration
PRF parameters
1Please note that for DCENUM=0, the ersmk.fits (radhit pixel rejection mask) file is not made because it is a product of MOPEX, the mosaicker pipeline, and MOPEX omits data with DCENUM=0 because they are not well-calibrated compared to all the other MIPS-24 data.
Table 6.2: Complete list of file types for MIPS-70 and MIPS-160.
Abbreviation
Type
Contents of file
*raw.fits
Raw
Raw pixel data with pointing in header.
*bcd.fits
BCD
Calibrated BCD image.
*fbcd.fits
BCD
Filtered calibrated BCD image; the median filter is optimized for point sources on a uniform background. Use at your own risk for other applications.
*bunc.fits
BCD
Error image associated with BCD image.
*bmask.fits
BCD
Bit mask associated with the BCD image, where different bits signify important characteristics of the data; bit definition in Table 6.8.
*maic.fits, *munc.fits, *mcov.fits
Post-BCD
Output FITS images for mosaic routine; in order: image, uncertainties, coverage map.
*mfilt.fits, *mfunc.fits, *mfcov.fits
Post-BCD
Output filtered FITS images for mosaic routine; in order: image, uncertainties, coverage map.
*mosst.fits
Post-BCD
Standard deviation image associated with unfiltered mosaic image (*maic.fits).
*mfstd.fits
Post-BCD
Standard deviation image associated with filtered mosaic image (*mfilt.fits).
*ilcorr.fits
Calibration
Illumination correction file
*ilcorr_c.fits
Calibration
Illumination correction mask
*ilcorr_u.fits
Calibration
Illumination correction uncertainty
*dark.fits
Calibration
Dark file image
*dark_c.fits
Calibration
Dark mask
*dark_u.fits
Calibration
Dark uncertainty
*enl.fits
Calibration
Electronic non-linearity
*sat.fits
Calibration
Hard saturation
*rnoise.fits
Calbration
Read noise image
*PRF_mosaic.fits
Calibration
Empirically generated PRF file for use with profile fitting
