Abstract The Airglow and Solar Spectrometer Instrument (ASSI) on the San Marco D/L satellite has measured solar extreme ultraviolet irradiances. The data are currently being released for analysis. As a preliminary step in evaluating this important dataset, modeled solar irradiances from 4 to 105 nm are presented for comparison to the San Marco data. The comparable flux for March–December 1988 is obtained from a revised and extended empirical solar extreme ultraviolet model derived from OSO 1, OSO 3, OSO 4, OSO 6, AEROS A, and AE-E satellite and six rocket flight datasets. Model wavelength intervals having the highest photon flux include the 15–35 and 85–105-nm ranges. Solar rotational features are prominent on several occasions in the model time series. A useful example is the modeled integrated flux between 30–31 nm which includes the Si XI (30.3-nm) and He II (30.4-nm) irradiance. The modeled flux in this 1-nm range shows both an absolute 22% increase from beginning to end of mission and a solar rotational variability with a typical peak-to-valley ratio of 14%. The absolute modeled irradiance in this wavelength interval is 9 × 109 photons cm−2 s−1 ±35%.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Comparative solar EUV flux for the San Marco ASSI


    Contributors:
    Tobiska, W.K. (author) / Chakrabarti, S. (author) / Schmidtke, G. (author) / Doll, H. (author)

    Published in:

    Advances in Space Research ; 13 , 1 ; 255-259


    Publication date :

    1992-01-01


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Comparative solar EUV flux for the San Marco ASSI

    Tobiska, W. K. / Chakrabarti, S. / Schmidtke, G. et al. | NTRS | 1993


    Calibration and Preparation of San Marco 5/ASSI Data

    Enninghorst, K. / Roemer, M. / Noel, S. et al. | British Library Conference Proceedings | 1997


    Confronto: 2 assi solitari

    DAF Trucks,NL / Mercedes-Benz,Stuttgart,DE / Renault,FR et al. | Automotive engineering | 2011


    Warten auf den Brems-Assi. Elektronischer Abstandsregler

    Mercedes-Benz,Stuttgart,DE | Automotive engineering | 1996


    Confronto: 4 assi 40 ton

    Astra,IT / DAF Trucks,NL / MAN,Muenchen,DE et al. | Automotive engineering | 2011