SVLBI -- First Generations

• TDRSS: 1986-1988 (U.S.-led)

  • 4.9m antenna, 2.3 and 15 GHz
  • Geosynchronous orbit

• VSOP 1997-2000+ (Japan-led)

  • 8m antenna, 1.6 and 5 GHz
  • Elliptical orbit, 21,000 km apogee

• RadioAstron (Russia-led)

  • 10m antenna, to 22 GHz, launch 2003++?

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