AbstractLYRA is the solar UV radiometer that will embark in 2006 onboard Proba2, a technologically oriented ESA micro-mission. LYRA is designed and manufactured by a Belgian–Swiss–German consortium (ROB, PMOD/WRC, IMOMEC, CSL, MPS and BISA) with additional international collaborations. It will monitor the solar irradiance in four UV passbands. They have been chosen for their relevance to Solar Physics, Aeronomy and Space Weather: (1) the 115–125nm Lyman-α channel, (2) the 200–220nm Herzberg continuum range, (3) the Aluminium filter channel (17–70nm) including He II at 30.4nm and (4) the Zirconium filter channel (1–20nm). The radiometric calibration will be traceable to synchrotron source standards (PTB and NIST). The stability will be monitored by onboard calibration sources (LEDs), which allow to distinguish between potential degradations of the detectors and filters. Additionally, a redundancy strategy maximizes the accuracy and the stability of the measurements. LYRA will benefit from wide bandgap detectors based on diamond: it will be the first space assessment of a pioneering UV detectors program. Diamond sensors make the instruments radiation-hard and solar-blind: their high bandgap energy makes them insensitive to visible light and, therefore, make dispensable visible light blocking filters, which seriously attenuate the desired ultraviolet signal. Their elimination augments the effective area and hence the signal-to-noise, therefore increasing the precision and the cadence. The SWAP EUV imaging telescope will operate next to LYRA on Proba2. Together, they will establish a high performance solar monitor for operational space weather nowcasting and research. LYRA demonstrates technologies important for future missions such as the ESA Solar Orbiter.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    LYRA, a solar UV radiometer on Proba2


    Contributors:
    Hochedez, J.-F. (author) / Schmutz, W. (author) / Stockman, Y. (author) / Schühle, U. (author) / BenMoussa, A. (author) / Koller, S. (author) / Haenen, K. (author) / Berghmans, D. (author) / Defise, J.-M. (author) / Halain, J.-P. (author)

    Published in:

    Advances in Space Research ; 37 , 2 ; 303-312


    Publication date :

    2005-10-17


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    LYRA, a solar UV radiometer on Proba2

    Hochedez, J. F. / Schmutz, W. / Stockman, Y. et al. | British Library Conference Proceedings | 2006


    LYRA, a solar UV radiometer on Proba2

    Hochedez, J.-F. | Online Contents | 2006


    LYRA, Solar UV Radiometer on the Technology Demonstration Platform Proba-2

    Stockman, Y. / European Space Agency / Centre Nationale d'Etudes Spatiales | British Library Conference Proceedings | 2006


    In-flight performance of the solar UV radiometer LYRA/PROBA-2

    Stockman, Y. / BenMoussa, A. / Dammasch, I. et al. | SPIE | 2017

    Free access

    Space Weather with ESA's PROBA2 Mission

    Lawrence, G. / Berghmans, D. / Hochedez, J.-F. et al. | British Library Conference Proceedings | 2005