The purpose of Calnic C is to extract and calibrate spectra of all detected objects in a NICMOS grism image with minimal human intervention. For each object detected on a direct image, a spectrum is extracted from the grism image and a FITS file is created along with appropriate catalogue and log file entries. These output files and logs may then be used for follow-up investigations of objects of interest.
Calnic C was developed primarily using IDL (Interactive Data Language). However the C-program SExtractor (Bertin & Arnouts, 1996) is used for source object detection.
Figure 3.1 shows a list of the processing steps.
