Welcome to the home page of the SOHO Michelson Doppler Imager (MDI) project.
MDI is a project of the Stanford-Lockheed Institute for Space Research and is
a joint effort of the Solar Oscillations Investigation (SOI) in the W.W. Hansen
Experimental Physics Laboratory of Stanford University and the Solar and Astrophysics
Laboratory of the Lockheed-Martin Advanced Technology Center.
SOI and the MDI Team are part of an international collaboration to study the
interior structure and dynamics of the Sun. The MDI team was responsible for
the design and fabrication, and now for the operation, of the MDI instrument
on board the Solar and Heliospheric Observatory (SOHO) spacecraft.
http://soi.stanford.edu/science/obs_prog.html