PLANCK LFI Level 1 Processing During Operations

Details PLANCK LFI Level 1 Processing During Operations PLANCK LFI Level 1 Processing During Operations

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..394..601m&link_type=abstract

Astronomical Data Analysis Software and Systems ASP Conference Series, Vol. 394, Proceedings of the conference held 23-26 Septem

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The PLANCK satellite with two on-board instruments, a Low Frequency Instrument (LFI) and a High Frequency Instrument (HFI) is foreseen to be launched in August 2008 with Ariane 5. The Data Processing Centre (DPC) in Trieste, Italy for LFI is responsible for processing the PLANCK LFI data. The ISDC data centre in Switzerland is responsible for developing/installing and maintaining the software for the LFI Level 1 data processing presented here. The main tasks of the Level 1 processing are to retrieve the daily available consolidated scientific and housekeeping (HK) data of the LFI instrument from the Mission Operation Centre in Darmstadt (MOC); to sort them by time and by type (detector, observing mode, etc...); to extract the spacecraft attitude information from auxiliary files; to flag the data according to several criteria; and to archive the resulting Time Ordered Information (TOI). The TOI data generated by the level 1 pipeline are the input for the more scientific LFI level 2 processing. The TOI are first stored in FITS format and then ingested into the Data Management Component (DMC) system, which is the interface to the LFI DPC database. In addition, the ISDC also developed software tools to display and perform a quick look analysis of the data.

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