IRAM Memo 2014-1 CLASS Data Fillers

# IRAM Memo 2014-1
CLASS Data Fillers

S. Bardeau, J. Pety
1. IRAM (Grenoble)
2. LERMA, Observatoire de Paris

December, 2 2016
Version 1.2

### Abstract:

CLASS is the program of the GILDAS suite dedicated to the data reduction and analysis of heterodyne instruments at cm and (sub-)mm single-dish telescopes. It is used by the IRAM-30m, APEX, SOFIA/GREAT, Herschel/HIFI, YEBES, Effelsberg. Because of tremendous improvement of the heterodyne spectrometer, the CLASS data format is evolving again after years of stability. To help non-IRAM telescope to cope with these changes, the CLASS team is now providing fillers to the Class Data Format writers. Three different possibilities are given: 1) A procedure using the SIC intepreter; 2) A Fortran program linked to the CLASS library; And 3) a Python script using a dedicated Python module. This document describes how those 3 APIs can be used and examples are provided in the appendices.

- Contents
- The Sic API
- The Fortran API
  - Compiling your program
- The Python API
  - File support
  - Observation support
- Acknowledgement
- The Sic API
  - Demonstration procedure
- The Fortran API
  - Fortran demonstration program
  - API description
- The Python API
  - Python demonstration script
  - API description
- About this document ...