Polar motion over recent year
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Atmospheric excitation over the current year
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TAI - UTC : 35 s
TAI - UTC history
Latest C04 values for polar motion and UT1 on 21 Mai 2013 at 0h UTC:
x= 96.67 mas y= 405.05 mas UT1-UTC= 85.942 ms
For the latest 7-20 days and the prediction
IERS recommends the use of
Bulletin A provided by the
IERS Rapid Service (USNO, Washington)
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Missions of the EOP Product Centre of International Earth Rotation Service and
Reference Systems :
- Collect through the world the time series of the Earth Orientation Parameters (EOP):
- polar motion (x,y)
- universal time (UT1-UTC, UT1-TAI)
- Celestial pole offsets (Dpsi, Deps)
These time series are derived from the various astro-geodetic techniques (LLR, SLR, GPS,
VLBI and DORIS).
- Archive EOP and make them avaible through FTP/WEB
- Analyse EOP and in particular monitor their consistencies
with respect to the international terrestrial and celestial referene
frames.
- Compute a combined standard solution for EOP (Bulletin
B)
in the (IERS) C04 solution.
- Compute and make available DUT1 (Bulletin
D) and leap second announcements (Bulletin
C).
Applications
- astrometry
- geophysics
- space geodesy
- orbit determination
- timing
- positionning
For users interested in the rapid and predicted EOP, refer to Bulletin A provided by the IERS Rapid Service/Prediction Center located
at USNO.
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Staff
Dr. Daniel Gambis
Astronomer
Director of the EOP PC
Dr. Christian Bizouard
Astronomer
WEB master, EOP analysis,
combination algorithm
Olivier Becker
Technician
WEB master, C04 solution,
operational service
Jean-Yves Richard
Engineer
Multitechnique Combination
"GINS Dynamo"
Dr. Sébastien Lambert
Astronomer
Numerical analysis
Teddy Carlucci
Engineer
Computer manager
Pascale Baudoin
Secretary
Administration of EOP-PC
Our graphics or plots are designed thanks to php package JPGRAPH
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Contact
Director
Dr. Daniel Gambis
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IERS EOP PC
Observatoire de Paris
61, avenue de l'Observatoire
75014 Paris/ FRANCE
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Tel
00 33 (0)1 40 51 22 29
Fax
00 33 (0)1 40 51 22 91
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