SSC Home Page
Spitzer Science Center
 SSC Home -  Active Mission -  Overview -  IRAC -  IRS -  MIPS -  Data Archive -  Data Analysis & Tools
RSS Feed
Knowledgebase : Data processing
We hope our documentation is extensive enough to cover most of the issues with Spitzer data, and we are working continuously on improving it. Our Helpdesk is available to answer any Spitzer-specific data reduction questions. Due to the funding limitat...
Check the header of one of your BCD files and look for the keyword 'CREATOR'. (e.g., imhead blah_bcd.fits | grep CREATOR). This is the software version that was used to process your data. The pipeline history file for your instrument can be found in App...
72 hours, sometimes longer if the SHA is not under heavy use.
This answer comes in two parts: * How to reference a Dataset ID in your journal articles [https://irsa.ipac.caltech.edu/data/SPITZER/docs/spitzermission/publications/iau/] * Guidelines for publication acknowledgments.
The pbcd products available from the archive were originally intended as quick-look images of your data. Post-BCD products have been produced with generic namelists, and the parameters have not been optimized for your data set. Post-BCD products and Level...
In general, the eight Spitzer Science Center (SSC) data processing pipelines convert spacecraft engineering data into scientifically useful data. _Raw data_ (engineering and science) were received at the ground tracking stations via telemetry and forwarde...
To uncompress the files you have downloaded, type "unzip .zip". To uncompress multiple files at once, type "unzip '*.zip'" (the single quotes are important), or "unzip \*.zip" -- you just have to escape out the wildcard. Double-clicking on the zipfi...
As part of the closeout for the Spitzer cryogenic mission custody of Spitzer documentation was transferred from the Spitzer Science Center to the Infrared Science Archive (IRSA) in April of 2011. However some information needed to run the warm mission was...
The data in the Spitzer Heritage Archive (SHA) [http://sha.ipac.caltech.edu/applications/Spitzer/SHA/] data is electronically accessible as FITS files (no extensions). The end-product files include complete calibration information and intermediate files f...
See the page on DQA Status flag definitions.
For each AOR, the SSC also provides calibration files, intermediate data files, quality analysis files, all with complete header information. Enhanced data products for Legacy and Exploration Science programs are also available.
In a nutshell, DATE_OBS is the most accurate, absolute measurement for comparing with astronomical emphemerides. SCLK_OBS (in real sec) is good for relative timing comparisons within an AOR or even a campaign. More words on this: * DATE_OBS value...
If you were asking for pointers to documentation, this page [https://irsa.ipac.caltech.edu/data/SPITZER/docs/] is one-stop-shopping for investigators looking to get started working on Spitzer data -- archive access, data handbooks, software, data processi...
This information is in the fits headers for data processed with pipelines > S16. Here is a sample snippet: SPTZR_X = 6084048.364647 / Heliocentric J2000 x position (km) SPTZR_Y = -138993559.088106 / Heliocentric J2000 y position (km) SPTZR_Z = -62551818...
If the 70 micron data were taken in MIPS-70's fine scale mode, no serendipitous 24 micron data were obtained during the 70 micron observation. Please see the MIPS Instrument Handbook for more information on dealing with these data.