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International Network of Global Fiducial Stations Science and Implementation Issues (1991) / Chapter Skim
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Appendix B: IERS Charge/Mission
Pages 123-125

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From page 123...
... IERS is responsible for: · defining and maintaining a conventional terrestrial reference system based on observing stations that use the high-precision techniques in space geodesy; · defining and maintaining a conventional celestial reference system based on extragalactic radio sources and relating it to other celestial reference systems; · determining the earth orientation parameters connecting these systems, the terrestrial and celestial coordinates of the pole, and universal time; and 123
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From page 124...
... The Directing Board is composed of representatives of: . the International Astronomical Union, · the International Association of Geodesy/International Union of Geodesy and Geophysics, · the Federation of Astronomical and Geophysical Data Analysis Services, .
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From page 125...
... ANDY B 125 Me sodas of Abe beam is pride ~ We C=tml Bureau. Me action includes di~dbudon of poem ad colophon of the ~1 ad~nistmtive ad =cia1 Cog.
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Key Terms

  • earth orientation
  • central bureau
  • analysis services
  • earth rotation
  • conventional celestial

  • terrestrial reference
  • bureau international
  • conventional terrestrial
  • geophysical data
  • orientation parameters

  • directing board
  • motion service
  • time signals
  • des poids
  • extragalactic radio

  • rotation section
  • celestial coordinates
  • appropriate information
  • radio sources
  • international des

  • observing stations
  • parameters connecting
  • bureau decides
  • universal time
  • bureau combines

  • coordinating centers
  • board exercises
  • space geodesy
  • international polar
  • including modifications


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