IRAS Explanatory Supplement
V. Data Reduction
D. Point Source Confirmation
D.7 Auxiliary Processing for Low Resolution Spectra
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All observations associated with known sources were processed for extraction of low-resolution spectrometer data (Chapter IX). This was also done for any observations above a signal-to-noise ratio of 25 in the 12 or 25 µm band even if they were not associated with a known source. The path of the source image through the focal plane was checked for passage over the spectrometer aperture, and if this was found then the crossing time and scan rate were inserted into the output source record so that extraction requests for sources which survived hours-confirmation could be issued.
Weeks-confirmed source sightings for which spectrometer extraction requests had been issued were processed for index association. This involved generating a record which associated the name of the later sightings with that of the earlier one, and which provided some housekeeping information about the extraction requests.
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