Wolter-Schwarzschild solar telescope coronal diagnostic spectrometer (CDS) flight model: manufacturing and assembly

Michael Schmidt; Udo Dinger; T. Petasch; Friedrich Trebstein

doi:10.1117/12.188098

30 September 1994 Wolter-Schwarzschild solar telescope coronal diagnostic spectrometer (CDS) flight model: manufacturing and assembly

Michael Schmidt, Udo Dinger, T. Petasch, Friedrich Trebstein

Author Affiliations +

Proceedings Volume 2210, Space Optics 1994: Space Instrumentation and Spacecraft Optics; (1994) https://doi.org/10.1117/12.188098
Event: Space Optics '94, 1994, Garmisch, Germany

Abstract

The Coronal Diagnostic Spectrometer (CDS) is one of the key instruments of the ESA cornerstone mission SOHO, scheduled for launch in 1995. It is designed to study the solar corona in the EUV. After successful completion of an engineering model in 1991 the flight model fabrication was started end of 1992. In August 1993 the optical alignment of the CDS flight mirror (FM) module was completed. The paper reports about the fabrication and achieved quality of the primary and secondary mirrors as well as the alignment of the mirror system. The predicted optical quality (half energy width) of the whole telescope is HEW <EQ 3 arcsecs for spatial wavelength >= 10 mm and <EQ 6 arcsec for (lambda) >= 3 mm (2).

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Michael Schmidt, Udo Dinger, T. Petasch, and Friedrich Trebstein "Wolter-Schwarzschild solar telescope coronal diagnostic spectrometer (CDS) flight model: manufacturing and assembly", Proc. SPIE 2210, Space Optics 1994: Space Instrumentation and Spacecraft Optics, (30 September 1994); https://doi.org/10.1117/12.188098

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