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THE INTERNATIONAL DORIS SERVICE. G. Tavernier (CNES) L. Soudarin (CLS) P. Willis (IGN/LAREG). C. Noll (GSFC/CDDIS) J. Ries (UTEX/CSR). DORIS SYSTEM. DORIS NETWORK. DORIS RECEIVERS FAMILY.

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the international doris service

THE INTERNATIONAL DORIS SERVICE

G. Tavernier (CNES)

L. Soudarin (CLS)

P. Willis (IGN/LAREG)

C. Noll (GSFC/CDDIS)

J. Ries (UTEX/CSR)

slide4

DORIS RECEIVERS FAMILY

1st generation 2nd generation miniaturized 2nd generation

slide5

DORIS Missions (decided)

90 91 92 93 94 95 96 97 98 99 2000 2001 2002

SPOT-2

TOPEX-POSEIDON

SPOT-3

SPOT-4

ENVISAT-1

JASON-1

SPOT-5

Precise Orbit

Precise Beacon Location

Gravity field

Earth rotation

Navigation

slide6

DORIS system evolutions and perspectives

  • DIODE navigator
    • SPOT4 (March 1998)
    • JASON-1, ENVISAT, SPOT5 ...
  • 2nd generation receivers
    • dual channel
    • absolute phase measurement
    • miniaturized (Jason, SPOT5 …)
    • DIODE
  • 3rd generation ground beacons
    • shifted frequency
    • DORIS message & modulation on 2GHz channel
slide14

International DORIS Service IDS

  • 4 techniques contributing to the IERS
  • International Services
    • I.G.S.
    • I.L.R.S.
    • I.V.S.
  • Benefit of an International DORIS service
    • IERS Directing Board
    • international scientific community
  • Call for Participation
slide15

IDS Elements

  • Transmitting stations
  • On-board packages
  • Data Centers
    • archive and distribute data and products
  • Analysis Centers
    • products
    • intercomparisons
    • combined solutions
  • Central Bureau
    • coordination
    • management
  • Directing Board
    • policies
    • directives
  • Associate Members
  • Corresponding Members
slide16

IDS Analysis Centers products

  • Precise ephemerides
  • Stations coordinates andvelocities (ITRF)
  • Earth rotation results
  • ionospheric information
  • Time varying geocentercoordinates
  • Earth’s gravity field
  • Intercomparisons and quality checks
  • combined solution (IERS)
slide17

IDS Call for Participation

  • Call for Participation
    • IUGG99 - July 1999
  • Letter of intent
    • 15 September 1999
  • Formal proposals
    • 1 January 2000
  • IDS steering committee
    • January 2000
  • DORIS Days
    • 2-3 May 2000
slide18

IDS contacts

  • CNES
  • DSO/ED/AL/MA - Bpi 2002
  • 18, avenue Edouard Belin
  • 31401 TOULOUSE CEDEX 4
  • FRANCE
  • Gilles Tavernier
    • Gilles.Tavernier@cnes.fr
  • Laurent Soudarin
    • Laurent.Soudarin@cls.fr
  • Pascal Willis
    • pascal.willis@ensg.ign.fr
  • DORIS Mail : http://lareg.ensg.ign.fr/DORIS/doris_mail.html
  • Carey Noll
    • noll@cddis.gsfc.nasa.gov
  • John Ries
    • ries@csr.utexas.edu
slide19

International Doris Service - Call for Participation

  • Precise ephemerides
  • Stations coordinates andvelocities (ITRF)
  • Earth rotation results
  • ionospheric information
  • Time varying geocentercoordinates
  • Earth’s gravity field
  • Transmitting stations
  • On-board packages
  • Data Centers
  • Analysis Centers
  • Central Bureau
  • Directing Board