Flights

shuttle_launch

Past and Ongoing Missions

 

  • Einstein Observatory (HEAO-2) :

    Mission dates: November 12, 1978 – April 1981
    Mission: First imaging x-ray telescope in space, operating in the 0.2-20 keV band.
    Instrument: Focal Plane Crystal Spectrometer (FPCS)
    Bragg crystal spectrometer for high resolution x-ray spectroscopy.
    Participation: Wrote flight control, data processing and analysis software. Maintained three-shift data processing operations. Responsible for calibration of the FPCS using laboratory and on-orbit data from observations of the Crab Nebula. Performed observations of Crab Nebula and studied x-ray absorption of the ISM.

  • Solar and Heliospheric Observatory (SOHO) :
    Mission: Solar observations.
    Mission dates: December 2, 1995 –
    Instrument: Solar EUV Monitor (SEM)
    Monitors the solar extreme ultraviolet (EUV) He II line (λ=30.4 nm).
    Participation: Fabricated 200 nm-period gold mesh transmission gratings.
  • Chandra X-ray Observatory :
    Mission dates: July 23, 1999 –
    Mission: X-ray telescope operating in the 0.1-10 keV band.
    Instrument: High Energy Transmission Grating Spectrometer (HETGS)
    Transmission grating spectrometer for high resolution x-ray spectroscopy.
    Participation: Fabricated 200 and 400 nm-period gold transmission gratings.
  • Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) :
    Mission dates: March 25, 2000 – Dec. 2005
    Mission: Observations of Earth’s magnetosphere.
    Instrument: Medium Energy Neutral Atom imager (MENA).
    Imaging of magnetosphere using neutral atom emission in the 1-30 keV band.
    Participation: Fabricated 200 nm-period gold nanofilters to block Solar Lyman UV radiation (λ=121.6 nm).
  • Geostationary Operational Environmental Satellites (GOES N, O, P (13-15)) :
    Mission dates: GOES N, May 24, 2006; GOES O, June 27, 2009;
    GOES P, March 4, 2010.
    Mission: Observations of Earth and space weather.
    Instrument: Space Environment Monitor (SEM)
    Monitors five solar EUV bands between λ=8-130 nm.
    Participation: Fabricated 200, 400, and 600 nm-period gold mesh transmission gratings.
  • Two Wide-Angle Imaging Neutral-Atom Spectrometers (TWINS A, B) :
    Mission Dates: TWINS-A, 5/2005; TWINS-B, 7/2006
    Mission: Tomographic neutral atom imaging of Earth’s magnetosphere.
    Instrument: Neutral Atom Imager.
    Imaging of magnetosphere using neutral atom emission in the 1-30 keV band.
    Participation: Fabricated 200 nm-period gold nanofilters to block Solar Lyman a UV radiation (λ=121.6 nm).
  • Solar Dynamics Observatory (SDO) :
    Mission Date: Feb. 11, 2010
    Mission: Observations of the Sun as source of space weather.
    Instrument: Extreme ultraviolet SpectroPhotometer (EVE/ESP).
    Monitors four solar EUV bands between λ=17-38 nm.
    Participation: Fabricated 200 nm-period gold mesh transmission gratings.
  • Marshall Grazing Incidence X-ray Spectrograph (MaGIXS) :
    Mission Date: 2018
    Mission: Investigate first ionization potential (FIP) effect in sun’s corona.
    Instrument: Grazing-incidence reflection grating.
    Observe the sun in λ=0.6-2.4 nm soft x-ray band.
    Participation: Fabricating variable-period blazed reflection grating.

 

Mission Planning

 

  • Arcus – High-resolution x-ray grating spectrometer (Arcus)
    Mission: High-resolution soft x-ray grating spectrometer mission.
    Mission dates: 2023-2025 (MIDEX proposal)
    Instrument: Critical-Angle Transmission Grating Spectrometer (CATGS)
    High resolution blazed soft x-ray transmission grating spectrometer.
    Participation: Developing lightweight, efficient, alignment- and temperature-insensitive, large-area, high-resolution soft x-ray transmission grating arrays.
  • International X-Ray Observatory (IXO)
    Mission: High-throughput x-ray spectroscopy telescope.
    Mission dates: 2020 (cancelled)
    Instrument: Critical-Angle Transmission Grating Spectrometer (CATGS)
    High resolution blazed soft x-ray transmission grating spectrometer.
    Participation: Developing lightweight, alignment- and polarization-insensitive, large-area, high-resolution soft x-ray transmission grating arrays.
    Instrument: Flight Mirror Assembly (FMA)
    Wolter foil optic x-ray telescope
    Participation: Developing air-bearing glass slumping technology for high-accuracy thin foil mirror shaping.
  • Micro Arcsecond X-ray Imaging Mission (MAXIM)
    Mission: x-ray interferometry
    Mission dates: 2030?
    Participation: Mission study team.
  • Generation-X (Gen-X)
    Mission: high-throughput, high resolution x-ray telescope
    Mission dates: 2030?
    Participation: Mission study team.
  • Laser Interferometer Space Antenna (LISA)
    Mission: gravity telescope
    Mission dates: 2020 (cancelled)
    Participation: Mission study team.

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