The ASSOCIATED ARRAYS support was officialy introduced in the oct15 version of
CLASS, together with the Herschel-HIFI FITS reader. They are
available in a new section (identifier code -19) in the CLASS observation header. The size of this section is variable, as there can
be several arrays in the section, and the size of each array is the
same as RY. The section provides the number of arrays stored,
then for each array its description and its data. See
Table for
details.
Name | Format (disk) | Description | |
Once in the section | N | INTEGER*4 | Number of arrays |
Repeated per array | NAME | CHARACTER*12 | Array name (identifier) |
'' | UNIT | CHARACTER*12 | Unit (blank if not relevant) |
'' | DIM2 | INTEGER*4 | Second dimension (0 for 1D array) |
'' | FMT | INTEGER*4 | Data format (internal code) |
'' | BAD | FMT | Blanking value |
'' | DATA | FMT | The data array (Nchan values, times DIM2) |
A basic example using 2 arrays is shown in Appendix .