ESA's gravity field mission GOCE and beyond

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Level 2 Data Products• Global Earth gravity potential modelled asspherical harmonic series (incl. coefficientsand error estimates)• Variance-covariance matrix of final GOCEEarth gravity field model• Global ground-referenced gridded values of:– geoid heights (Earth geoid map)– gravity anomalies (Earth gravity map)– geoid slopesIV Hotine-Marussi Symposium, Wuhan 29 May - 2 June 2006
Main Technical Challenges Highest sensitivityaccelerometers in spaceCHAMP:∼10 -9 ms -2GRACE:∼10 -10 ms -2GOCE: ∼10 -12 ms -2 Ultra-stable Carbon-Carbonstructure with superior thermoelasticstability properties inthe MBW∼ 1 pm over 200 s∼10 mK over 200 s Continuous operation andmodulation of highly accurateion thrusters with high thrustand thrust gradient demandsIV Hotine-Marussi Symposium, Wuhan 29 May - 2 June 2006
Page 1 and 2: ESA’s gravity field missionGOCE a
Page 3 and 4: ESA’s Living Planet ProgrammeLivi
Page 5 and 6: • ESA’s Living Planet Programme
Page 7 and 8: Mission Requirements• To determin
Page 9: High-Level Processing FacilityAIUB:
Page 13 and 14: Gradiometer Structural ModelIV Hoti
Page 15 and 16: Consequence of Launch DelayLaunch i
Page 17 and 18: Meetings and Studies• 3 rd Intern
Page 19 and 20: • ESA’s Living Planet Programme
Page 21 and 22: Swarm Satellite & ConstellationAcce
Page 23 and 24: Swarm and GravityUse of GPS-Baselin
Page 25 and 26: SH-Error CharacteristicsAlong-track
Page 27 and 28: SH-Error Characteristicsfrom Gradie
Page 29 and 30: Simulation results: 1 MonthDegree R
Page 31 and 32: Remarks• Gravity field recovery w
Page 33 and 34: Studies Recently Performed• Gravi
Page 35 and 36: Measurement and control elements of
Page 37 and 38: Satellite-satellite distance measur
Page 39: Future Concepts ?GSP - Mass distrib

ESA's gravity field mission GOCE and beyond

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