JASON2 Status in NOAA Gary Petti Office of Satellite Data Processing and Distribution

JASON2 Mission 4-party Agreement between NOAA, NASA (JPL), CNES, and EUMETSAT Identifies Roles and Responsibilities (in an MOU) NOAA –Command and Control of Satellite –Wallops & Fairbanks CDA Ground Stations –Operational Data Processing –Operational & Offline Data Distribution –Archive EUMETSAT –Usingen Ground Station –Operational Data Processing –Operational Data Distribution CNES –PROTEUS Satellite Bus –Command and Control of Satellite (before handover to NOAA) –Poseidon-3 Altimeter –DORIS orbit determination system –Science Data Processing –Offline Data Distribution –Archive NASA (JPL) –Advanced Microwave Radiometer –GPS orbit determination system –Laser Retroreflector –Delta-II Launch Vehicle

JASON2 Sensors CNES –Poseidon-3 (C and KU Band): Dual Frequency RADAR Altimeter –DORIS: Doppler Orbitography and Radiopositioning Integrated by Satellite –T2L2: Time Transfer by Laser Links; Compare distant clocks and aid in characterization of DORIS noise –LPT: Light Particles Telescope (Japan); Radiation in Satellite Environment –Carmen-2: Environment Characterization and Modelization; Radiation in the Satellite Environment NASA –AMR: Advanced Microwave Radiometer –LRA: LASER Retroreflector Array –GPSP: Global Positioning System Payload

JASON2 Status Launch Scheduled for June from Vandenberg NOAA –Command and Control; In place –Operational Data Processing; Under development –Operational Distribution: Under development –Archive by CLASS; Initial support & testing begin Jan EUMETSAT –Operational Data Processing; Under development –Operational Distribution; Under development CNES –Poseidon Altimeter; Completed, Mated to S/C –Science Data Processing System; Under development –Payload instrument integration occurred December 2006 – June 2007 –Satellite assembly, integration, test – June 2007 to January 2008 NASA (JPL) –AMR; Completed Mated to S/C –Launch Services (Delta ll 7320); Scheduled

JASON2 Products Operational Geophysical Data Record (OGDR) –Produced by NOAA and EUMETSAT within 3 hours of observation –Native NetCDF format as well as OGDR-BUFR format –Operational Distribution from DDS –Orbit computed onboard from DORIS to 10 cm –Ground contact based files (products) Interim Geophysical Data Record (IGDR) –Produced by CNES within 1-2 days –Segmented by passes (half orbital revs) –NetCDF format –2.5 cm orbit accuracy Geophysical Data Record (GDR) –Produced by CNES within 60 days –Cycle (10-days) based & pass segmented –NetCDF format –1.5 cm precise orbit O/I/GDR Contents –Sea Surface Height –Wind speed –Significant Wave Height –RADAR Backscatter –S-IGDR & S-GDR contain radar echo "waveforms" –O/I/GDR-SSHA products also available: reduced 1-Hz datasets

JASON2 Schedule Launch June 15, 2008 from Vandenberg 1 month Orbit Acquisition & instrument checkout –Cycle 1 begins ~ July 16, months NRT Verification –NRT Data Distribution by NOAA & EUM begins Dec, 2008 –Do operational users want first 5 months of the NRT data reprocessed with final algorithms/software? 5 more months Offline Verification –Offline data Distribution: May 2009 –Project begins using “final” algorithms at this time