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    SOHO Status Report - February 2006

    15 Feb 2006 13:43

    Mission Status

    The spacecraft status is nominal, with the High Gain Antenna (HGA) Z-axis in a fixed position. 2005 was the first year since 1996 without an Emergency Sun Reacquisition (ESR). On 15 December a nominal manoeuvre (station keeping, momentum management and roll) was performed and 0.0723 kg of fuel was used. The remaining hydrazine is 118 kg. The solar array degradation after 120 months of flight is 18.04%. The SOHO presentation to the NASA Sun-Solar System Connections Senior Review took place on 14 November.

    Operations and Archiving

    All instruments are nominal and SOHO science operations are progressing smoothly. Links to the SOHO archives (including mirrors) are accessible at http://soho.esac.esa.int/data/.

    Science Highlights

    On 2 December we celebrated the 10th launch anniversary of SOHO. The ESA main portal featured a SOHO 10-year special, and the SOHO home page listed some numbers from SOHO's first decade:

    • 2400 reviewed papers using SOHO data have been published
    • 2300 scientists appear in the author lists of those papers
    • 140 Ph.D. theses have been written on or about SOHO data
    • 1000 comets have been found
    • 289 scientific meetings on subjects related to SOHO appear on our web pages
    • 944 news stories appear on our web pages (only recorded between 1997 and 2005)
    • 2 000 000 command blocks have been sent to the spacecraft by the ground system
    • 10 000 000 exposures (almost!) have been made by the CDS instrument
    • 100 000 000 exposures have been taken by MDI
    • 16 000 000 distinct hosts have been served by the web server
    • 266 000 000 web page requests have been served
    • 16 Terabytes of data are contained in the SOHO archive
    • 85 Terabytes of web pages/data have been downloaded from the SOHO archive

     


    Last Update: 17 May 2006

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