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Knowledgebase : IRS
Yes. However, many mac owners use the bash shell. In that case, you must edit one line in each of two files: line 46 of /smart/utility/misc/sm_list_files.pro line 81 of /smart/scripts/pro/sc_read_fits_bcd.pro In each file, the line in question...
To do it you need to make your own extraction mask. The simplest way to do this is to write an IDL routine which makes a 128X128 array, sets the array elements to the values you want them to be and then writes out to a file. Mask files can be either ".fit...
Scripted autosky extraction hasn't yet been programmed into SMART and is on the to do list. However, you could look into the IDL source code to identify the subroutines which perform source extraction and write an IDL program which has just these routines...
The aperture shown in CUBISM is data-driven, and does not intend to represent the full slit. The width in the CUBISM visualization reflects that of the 1 pixel width wavesamp, which is set that way on purpose, reflecting the fact that in the cross-slit...
You may experience inconsistencies between the colors indicated in the CUBISM documentation and what you see on your screen if you have chosen to install the full source distribution of CUBISM. If you have trouble with the colors looking strange on a 1...
Read the SMART installation documentation carefully. In almost all cases, problems have been because of the order of directories in the IDL_PATH or a missing "+" sign or the absence of the IDL astro library in the IDL_PATH. Make sure you have the most rec...
You may encounter the error "Failed during validation" if you have spaces in the path to your input files. To avoid this problem, you can: - remove the space from your path OR - identify a directory with no spaces, and create a symbolic link to ...
The integrated number counts for sources with flux density of 1 mJy at 24 microns at high latitudes (see Marleau et al. 2004, ApJS, 154, 66) give 335 sources (both stars and galaxies) per square degree in a high galactic latitude field. That is one source...
An onboard peak-up algorithm measures the centroid of the brightest source in the peak-up field. It performs two measurements. First, the centroid of the brightest source in the peak-up array field-of-view is measured at an "acquisition" pointing (ACQ). N...
There are two ways for the peak-up to "fail". 1. If the algorithm does not find a valid centroid, then it will report a failure. In the peak-up images, particularly the processed DCE (see above), there will be no visible source. You can also identify t...
An example of the problem using the SH and LH slits is illustrated here: http://ssc.spitzer.caltech.edu/files/spitzer/n1365_irs_sh_lh.jpg [1]. The spectral map positions are in array coordinates, which have axes that are parallel and perpendicular to t...
In order to understand the answer to this question, you need a little background on the SSC pipeline. Roughly every six months, the pipeline number (the "S-number") for all new Spitzer data (from all instruments) in the archive is incremented as a new so...
Open the "Java Preferences" application, found in Applications > Utilities > Java, and switch to Java 1.5 32-bit. If this doesn't work, then close SPICE and open a Terminal window. Issue the following commands. cd /Applications/spice/spice.app/Cont...
The values that are relevant are RA_SLT, DEC_SLT, PA_SLT. RA_SLT and DEC_SLT are different for different nod positions while RA_FOV and DEC_FOV remain the same between nods. So lets say your PA_SLT is 0 degrees (that means the long axis of the slit is rot...
This is a known problem and is being fixed. It has been reported by a user that selecting 'fixed column' extraction in the 'interactive extraction' will perform a fixed column extraction and will use the user-defined extraction width if you manually se...
Yes, the developers of SMART have written a SMART cookbook. Additional illustrations of data reduction with SMART can be found in the SMART section of the Spitzer Data Analysis Cookbooks page.
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...
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...
You must add the astrolib library to your IDL path. Make sure that your IDL path includes SMART before astrolib.