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IERS Earth Orientation Centre

Mission:

The Earth Orientation Centre is responsible for monitoring of long-term earth orientation parameters, publications for time dissemination and leap second announcements.

Web site:

http://hpiers.obspm.fr/eop-pc/

Main products:

Monthly earth orientation data:

  • BULLETIN B

Leap second announcements in UTC:

  • BULLETIN C

Announcements of DUT1:

  • BULLETIN D

Long term earth orientation data:

  • EOP C01 (1846-1899)
  • EOP C01 (1846-now)
  • EOP C01 IAU2000 (1846-now)
  • EOP C02 yearly files
  • EOP C03
  • EOP 08 C04 (IAU1980) one file
  • EOP 08 C04 (IAU1980) yearly files
  • EOP 08 C04 (IAU2000) one file
  • EOP 08 C04 (IAU2000) yearly files
  • EOP GPS yearly files
Primary scientist and representative to the IERS Directing Board:
Staff:
Contacts:
  • IERS Earth Orientation Centre
  • Christian Bizouard
  • Observatoire de Paris
  • 61, Avenue de l'Observatoire
  • 75014 Paris
  • France
  • Phone: +33-1-4051-2335
  • christian.bizouard@obspm.fr

For more details about the tasks, please consult the Terms of Reference and the Call for Participation in the new IERS.

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