gather_qual

gather_qual updates (or creates, if it doesn't exist) the level 1 log file whose contents are specified here. It pulls information from the input data set, any existing level 1 record files, the level 0 record files, and from the MDI log. Information bits are determined and set in the Data Status Word (DATA_SW).

Currently gather_qual does the following:

  • Bits in DATA_SW are set automatically by gather_qual.

  • Bits set in DATA_SW are normally in the lower 16 bits.

  • Currently bits 0 and 2-9 are set in gather_qual as defined in the table.

  • The fraction missing used to set bits 3-6 will be determined from the keywords according to

  • gather_qual reads MDI_SW, the MDI Status Word, to set the bits for IP_ERR, Pointing anomalies, and PRIME30/60 (bits 7,8,9).

  • The DATA_SSW will be set indicating which bits in DATA_SW are valid; currently bits 0, 2-9.

  • The QUALITY keyword will be generated at this step as specified.

  • T_QUAL will be set to the current time.

  • WHENEVER the value of DATA_SW is changed or recomputed, bit 31 in PROB_VLD is set to 0; indicating that the change in the level 0 data may require a reevaluation of the manually set PROBLEM bits.

    Back to QUALITY.
    Author JTH; Last modified by KRL on 8 May, 1998