Free access article



A&A 402, L35-L38 (2003)
DOI: 10.1051/0004-6361:20030336

Letter

The Odin satellite

II. Radiometer data processing and calibration

M. Olberg¹, U. Frisk², A. Lecacheux³, A. O. H. Olofsson¹, P. Baron³, P. Bergman¹, G. Florin², Å. Hjalmarson¹, B. Larsson⁴, D. Murtagh⁵, G. Olofsson⁴, L. Pagani⁶, Aa. Sandqvist⁴, D. Teyssier⁷, S. A. Torchinsky⁸ and K. Volk<sup>9

1</sup>  Onsala Space Observatory, 439 92 Onsala, Sweden
²  Swedish Space Corporation, PO Box 4207, 171 04 Solna, Sweden
³  LESIA, Observatoire de Paris, Section de Meudon, 5 place Jules Janssen, 92195 Meudon Cedex, France
⁴  Stockholm Observatory, SCFAB, Roslagstullsbacken 21, 106 91 Stockholm, Sweden
⁵  Global Environmental Measurements Group, Chalmers University of Technology, 412 96 Göteborg, Sweden
⁶  LERMA & FRE 2460 du CNRS, Observatoire de Paris, 61 Av. de l'Observatoire, 75140 Paris, France
⁷  SRON, Postbus 800, 9700 AV Groningen, The Netherlands
⁸  Canadian Space Agency, St-Hubert, J3Y 8Y9, Québec, Canada
⁹  Department of Physics and Astronomy, University of Calgary, Calgary, ABT 2N 1N4, Canada

(Received 2 December 2002 / Accepted 25 January 2003 )

Abstract
The radiometer on-board the Odin satellite comprises four different sub-mm receivers covering the 486-581 GHz frequency range and one fixed frequency 119 GHz receiver. Two auto-correlators and one acousto-optical spectrometer serve as backends. This article gives an overview over the processing of the data delivered by these instruments and discusses calibration issues.

Key words: space vehicles: instruments -- submillimeter -- techniques: spectroscopic -- telescopes

Offprint request: M. Olberg, olberg@oso.chalmers.se

© ESO 2003