We describe here, section by section, how the CLASS observation
header is filled from the Herschel-HIFI FITS header and data. You can refer to the
CLASS or Herschel-HIFI documentations for the exact specification of each
component. The concept of FITS cards and metacards is explained in the
section
.
| Name | Type | Value | Default |
| num | I*8 | Automatic | |
| ver | I*4 | 1 | |
| teles | C*12 | HIF-LL-SP-BB where: | |
| - LL is 00 (level 2.5) or the subband number in the column flux_* | |||
| name (level 2.0), | 00 | ||
| - S is the spectrometer, W for WBS or H for HRS (1st letter of the | |||
| card BACKEND, else of the metacard polarization) | Blank | ||
| - P is the polarization, V or H (5th letter of the card BACKEND, else | |||
| of the metacard polarization) | Blank | ||
| - BB is the band name (2 first letters of the card BAND) | Blank | ||
| dobs | I*4 | Integer part of average of card DATE-OBS and card DATE-END | Current day |
| dred | I*4 | Current day | |
| kind | I*4 | CLASS internal code for spectroscopic data | |
| qual | I*4 | CLASS internal code for unknown quality | |
| scan | I*8 | Metacard bbtype (level 2.5) or column bbtype (level 2.0) | 0 |
| subscan | I*4 | Metacard bbnumber (level 2.5) or column bbnumber (level 2.0) | 0 |
| ut | R*8 | Fractional part of average of card DATE-OBS and card DATE-END | Current time |
| tau | R*4 | 0.0 | |
| tsys | R*4 | Metacard tsys_median (level 2.5) or column tsys_median (level 2.0) | 0 K |
| time | R*4 | Metacard integrationTime (level 2.5) or | |
| column integrationTime (level 2.0) | 0 sec |