MIPS : GeRT: Germanium Reprocessing Tools

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The Ge Reprocessing Tools (GeRT) allow users to carry out custom offline data reduction of Spitzer MIPS-Ge (70 um and 160 um) data. Most users will find that the SSC archive products are sufficient for their needs. The GeRT is contributed software from the MIPS Instrument Support Team made available to the public to help users maximize their science returns with MIPS-Ge data. Users should be careful when processing their data offline. If used properly, the GeRT can yield enhanced data products, but users can also corrupt the quality and calibration of their data if used improperly.

The GeRT uses an offline version of the SSC pipeline to produce the basic calibrated data products (BCDs), following the algorithms derived by the MIPS Instrument Team and the MIPS Instrument Support Team (Gordon et al. 2005, PASP, 117, 503). With the GeRT, users can reprocess their data completely from scratch starting with the "raw" data from the archive or can cleanup (re-filter) the BCD products from the archive. The GeRT scripts are comprised of perl and tcsh wrappers that use copies of SSC downlink binaries and libraries. The GeRT package includes all of the calibration files (e.g., DARK, IC, PMASK) and "cdf" files (cdf's are ascii namelist files that control the way the processing is done). Expert users may find it useful to optimize the cdf files for their specific science application. The online pipelines are robust for many science applications, but observers of bright, extended regions may find that offline processing with the GeRT is helpful. The MIPS-IST encourages users of the GeRT to provide feedback (help@spitzer.caltech.edu), so that we can improve the processing of MIPS-Ge data.

Please read the README and the gert_doc files included in the package! These documents include examples.

Calibration Files Update

(0) Calibration Files Update for the GeRT: Download the gzipped tarball

As a result of the analysis of three years of calibration data, we have recently updated (May 2007) some of the MIPS Ge online pipeline (S16) calibration files (mostly SED and 160um flux conversion factor). In order to keep your GeRT installation up to date, all you have to do is to replace the following files in the cal directory of your GeRT installation with the new files. The "tarball" above contains:

MIPS160_fluxconv.tbl

MIPS70_ILCORRSED.fits

MIPS70_ILCORRSED_U.fits

MIPS70_SED_Flux_calibration.tbl

MIPS70_SEDRESP_U.fits

MIPS70_SEDRESP.fits

Download

(1) Solaris SunOS 5.8 compiled with FORTE: Download the gzipped tarball

(2) Solaris SunOS 5.8 compiled with GNU 3.4.5: Download the gzipped tarball

(3) Linux Red Hat Enterprise 3 compiled with GNU 3.4.5: Download the gzipped tarball

(4) Mac OSX PowerPC (10.3/10.4) compiled with GNU 3.4.5: Download the gzipped tarball

(5) Mac OSX Intel (10.3/10.4) compiled with GNU 3.4.5: Download the gzipped tarball

Uncompress and untar the files, and then read the README for specific installation instructions.

Known 'Features'

The current GNU versions of the GeRT can carry out science BCD processing, but the calibration IC pipelines do not work on the GNU Solaris, Linux, and Mac versions yet. All pipelines should work on the Solaris--forte version.

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