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IRAC Pipeline Data Products and Filenaming Convention
Also see...
IRAC BCD Products (06/04/04):
| File Type |
Name Example
SPITZER_I+channel*_aorkey_expid_ dcenum_version_type.suffix |
Format |
Description |
| Raw data |
SPITZER_I1_0009876540_0096_0000_01_dce.fits |
Output FITS image with 16-bit unsigned integer, 256x256 |
Raw data |
| BCD image |
SPITZER_I1_9876540_96_0_1_bcd.fits |
Output FITS image with 32-bit float, 256x256 |
BCD-processed, flux-calibrated final product (MJy/Str) |
| Log file |
SPITZER_I1_9876540_96_0_1_bcd.log |
ASCII file |
BCD-processing log |
| Error image |
SPITZER_I1_9876540_96_0_1_bunc.fits |
Output FITS images with 32-bit float, 256x256 |
Error image associated with the BCD image |
| Mask file |
SPITZER_I1_9876540_96_0_1_bdmsk.fits |
Output FITS images with 16-bit integer, 256x256 |
Bit-mask associated with BCD image for during BCD processing,
e.g. wraparound correction (see bit
definition) |
| Mask file |
SPITZER_I1_9876540_96_0_1_brmsk.fits |
Output FITS images with 16-bit integer, 256x256 |
Bit-mask associated with outlier detections in the BCD image
(see bit definition) |
| Log file |
SPITZER_I1_9876540_96_0_1_ptn.log |
ASCII file |
BCD-processing log |
* I1, I2, I3, I4 correspond to 3.6, 4.5, 5.8, 8.0 microns
IRAC Post-BCD Products (05/10/04):
| File Type |
Name Example
SPITZER_I+channel_aorkey_dcenum _version_Enum*_type.suffix |
Format |
Description |
| Mosaic files |
1a. SPITZER_I1_9876540_0_1_E012345_msaic.fits (S11 and earlier)
1b. SPITZER_I1_9876540_0_1_E012345_maic.fits (S12 and later)
2a. SPITZER_I1_9876540_0_1_A012345_msunc.fits (S11 and earlier)
2b. SPITZER_I1_9876540_0_1_A012345_munc.fits (S12 and later)
3a. SPITZER_I1_9876540_0_1_A012345_mscov.fits (S11 and earlier)
3b. SPITZER_I1_9876540_0_1_A012345_mcov.fits (S12 and later)
When HDR mode is used with an exposure time of 12s/30s, the following additional products
from the 0.6s(short)/1.2s(short) exposure times will be created:
4. SPITZER_I1_9876540_0_1_A012345_maics.fits
5. SPITZER_I1_9876540_0_1_A012345_muncs.fits
6. SPITZER_I1_9876540_0_1_A012345_mcovs.fits
When HDR mode is used with an exposure time of 100s/200s, the following additional products
from the 0.6s(short),12s(medium)/0.6s(short),12s(medium) exposure times will be created:
7. SPITZER_I1_9876540_0_1_A012345_maicm.fits
8. SPITZER_I1_9876540_0_1_A012345_muncm.fits
9. SPITZER_I1_9876540_0_1_A012345_mcovm.fits |
1-9. Output FITS images with 32-bit float |
1,4,7. Mosaic image
2,5,8. Mosaic uncertainty image
3,6,9. Coverage map |
| Pointing Refinement files |
1. SPITZER_I1_9876540_0_1_E012345_reptg.tbl
2. SPITZER_I1_9876540_0_1_A012345_irsa.tbl
3. SPITZER_I1_9876540_0_1_A012345_mosnl.nl |
ASCII files |
1. Table of corrected RA, DEC, CD matrix keywords and their uncertainties
Absolute pointing corrections are produced using channel 1 & 2 only
and applied to all 4 channels
2. List of 2mass point sources located in the mosaic and used for
absolute pointing refinement
3. Parameter file for mosaic/source extraction pipeline |
* The letter "E" stands for "ensemble" product and "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.
IRAC Calibration Products (05/10/04):
| File Type |
Name Example
SPITZER_I+channel_productid*_ dcenum_version_Cnum**_type.suffix |
Format |
Description |
| Dark file |
SPITZER_I1_0123456_0_1_C987650_sdark.fits |
Output FITS images with 32-bit float, 256x256 |
Dark image |
| Mask file |
SPITZER_I1_0123456_0_1_A012345_scmsk.fits |
Output FITS images with 16-bit integer, 256x256 |
Bit-mask associated with the skydark image |
| Flat file |
SPITZER_I1_0123456_0_1_C987650_flat.fits |
Output FITS images with 32-bit float, 256x256 |
Flat field image |
| Mask file |
SPITZER_I1_0123456_0_1_A012345_fcmsk.fits |
Output FITS images with 16-bit integer, 256x256 |
Bit-mask associated with the flat field image |
| Log file |
SPITZER_I1_0123456_0_1_A012345_flat.log |
ASCII file |
Flat field processing log |
| Log file |
SPITZER_I1_0123456_0_1_A012345_flens.txt |
ASCII file |
List of BCDs used for flat |
* The calibration products have a unique "productid", different from
the BCD and post-BCD "productid".
** The letter "C" stands for "calibration" product: in the case of a
calibration product, "dcenum" refers to the first dce that was used in the
calibration creation, "version" refers to the version of that first dce,
and "Cnum" is the calibration number.
Pmask -- Download here (04/26/04):
| File Type |
Name Example
SPITZER_I+channel_productid*_ dcenum_version_Cnum**_type.suffix |
Format |
Description |
| Mask file |
SPITZER_I1_0123456_0_1_A012345_pmsk.fits |
Output FITS images with 16-bit integer, 256x256 |
Bit-mask which flags permanently damaged (hot and dead) pixels
in the array (see bit definition and currently
available mask files) |
* The calibration products have a unique "productid", different from
the BCD and post-BCD "productid".
** The letter "C" stands for "calibration" product: in the case of a
calibration product, "dcenum" refers to the first dce that was used in the
calibration creation, "version" refers to the version of that first dce,
and "Cnum" is the calibration number.
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