Reduction Algorithms for the Multiband Imaging Photometer for Spitzer

Details Reduction Algorithms for the Multiband Imaging Photometer for Spitzer Reduction Algorithms for the Multiband Imaging Photometer for Spitzer

2005-02-03

arxiv.org/abs/astro-ph/0502079v1

Publ.Astron.Soc.Pac. 117 (2005) 503-525

Astronomy and Astrophysics

Astrophysics

21 pages, 16 figures, PASP accepted (May 2005 issue), version of paper with full resolution images is available at http://di

Scientific paper

10.1086/429309

We describe the data reduction algorithms for the Multiband Imaging Photometer for Spitzer (MIPS) instrument. These algorithms were based on extensive preflight testing and modeling of the Si:As (24 micron) and Ge:Ga (70 and 160 micron) arrays in MIPS and have been refined based on initial flight data. The behaviors we describe are typical of state-of-the-art infrared focal planes operated in the low backgrounds of space. The Ge arrays are bulk photoconductors and therefore show a variety of artifacts that must be removed to calibrate the data. The Si array, while better behaved than the Ge arrays, does show a handful of artifacts that also must be removed to calibrate the data. The data reduction to remove these effects is divided into three parts. The first part converts the non-destructively read data ramps into slopes while removing artifacts with time constants of the order of the exposure time. The second part calibrates the slope measurements while removing artifacts with time constants longer than the exposure time. The third part uses the redundancy inherit in the MIPS observing modes to improve the artifact removal iteratively. For each of these steps, we illustrate the relevant laboratory experiments or theoretical arguments along with the mathematical approaches taken to calibrate the data. Finally, we describe how these preflight algorithms have performed on actual flight data.

Affiliated with

Also associated with

No associations

Rating

Reduction Algorithms for the Multiband Imaging Photometer for Spitzer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Reduction Algorithms for the Multiband Imaging Photometer for Spitzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduction Algorithms for the Multiband Imaging Photometer for Spitzer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-527376