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 |