NICRED: A NICMOS Image Processing Pipeline

Details NICRED: A NICMOS Image Processing Pipeline NICRED: A NICMOS Image Processing Pipeline

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..376..261m&link_type=abstract

Astronomical Data Analysis Software and Systems XVI ASP Conference Series, Vol. 376, proceedings of the conference held 15-18 Oc

Astronomy and Astrophysics

Astronomy

18

Scientific paper

We have written an automatic image processing pipeline for the NICMOS instrument on the Hubble Space Telescope (HST). The pipeline, known as NICRED, currently supports imaging data from camera 2 and 3 and is written in Python and C making it portable across many platforms. The processing steps include basic calibration (removing the instrumental signature), cosmic-ray removal, treatment for post-SAA cosmic ray persistence and electronic ghosts (a.k.a. the ``Mr. Staypuft'' effect), sky subtraction, non-linear count-rate correction, artifact masking, robust alignment and registration for large mosaics, weight map generation, and drizzling onto a final image frame. NICRED creates image products with a signal-to-noise ratio that matches the most careful step-by-step manual NICMOS reductions.

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