Solar Dynamics Observatory SDO

1
(No Transcript)
2
Solar Dynamics Observatory (SDO)

• Science Objectives
• Understand the nature and source of the solar
  variability that affects life and society
• Make accurate measurements of the solar
  parameters that are necessary to provide a deeper
  understanding of the mechanisms that underlie the
  Suns variability on timescales ranging from
  seconds to centuries
• Through remote sensing, monitor and record those
  aspects of the Suns variable radiative,
  particulate, and magnetic plasma outputs that
  have the greatest impact on the terrestrial
  environment and the surrounding heliosphere.
• Mission Description
• NASA GSFC will manage the mission, build the
  robust, three-axis stabilized, solar tracking S/C
  in-house, manage integrate the instruments,
  develop/manage the Ground System, receiving
  continuous 150 Mbps stream to dedicated ground
  station, Mission Operations, perform
  Observatory environmental testing at GSFC
• April 2008 Atlas V launch from KSC into
  GEO-Transfer Orbit (GTO), circularize to GEO-Sync
  Orbit, inclined 28.5 degrees
• Investigations responsible for development of
  their Instrument Science Operations Center.
• Measurement Strategy
• Helioseismic Magnetic Imager (HMI) Images the
  Suns helioseismic and magnetic fields to
  understand the Suns interior and magnetic
  activity
• Atmospheric Imaging Assembly (AIA) Multiple
  simultaneous, high resolution images of the
  corona over a wide range of temperatures
• Extreme Ultraviolet Variability Experiment (EVE)
  Measures the solar extreme ultraviolet (EUV)
  irradiance to understand variations

• Enabling Technology
• Ka-Band Telecommunications