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Summit Pipeline

The main purpose of the summit pipeline is to generate near real-time DQC information by processing data on-the-fly using library master calibration frames.

The summit pipeline will probably run under the control of the ORAC data aquisition system and will produce the export MEF FITS files and instigate a FITS header and data verification program.

The summit pipeline will have to maintain and update a ``best guess'' series of master calibration frames (dark, flats, skies ...) to provide basic 2D instrumental signature removal. The DQC feedback will probably require some form of catalogue generation software which can be used to produce measures for DQC monitoring, including: astrometric pointing accuracy - requires telescope to point to better than (TBD) arcsec rms; photometric throughput; image shape measures - trailing; sky brightness levels; sky noise levels ...(details TBD). This latter software could be a subset of the basic pipeline.

To minimise data volumes the data aquisition system must carry out basic operations such as reset-correction and stacking multiple sequential exposures (an `integration') in situ before forwarding data to the rest of the system.


next up previous
Next: Basic pipeline Up: PIPELINE PROCESSING REQUIREMENTS Previous: Overall strategy
Nigel Hambly 2002-10-02