Gene Legg Office of Satellite Data Processing and Distribution Asia Pacific Satellite Data Exchange and Utilization Meeting Honolulu, HI, September 20-22, 2006 Overview of the Current NOAA/GOES PROGRAM

2 GOES EAST GOES-12 at 75W (July 23, 2001) –Instrument Status Imager and Sounder- Green (operational) Yellow SEM – Yellow (limited ops) EPS (Energetic Particle Sensor) anomaly (noise in channels P6 and P7 (10/28/03) SXI (Solar X-Ray Imager) – Orange (degraded) Entrance Filter failure(11/03) –Subsystem Status AOCS – Green Thermal Control – Green Electrical Power – Green Telemetry/Command/Communications – Green Mechanical - Green Propulsion - Green

3 GOES WEST GOES-11 at 135W (May 3, 2000) –Instrument Status Imager and Sounder- Green (operational) SEM – Green SXI (Solar X-Ray Imager) – Not Flown – Subsystem Status AOCS – Green Thermal Control – Green Electrical Power – Green Telemetry/Command – Green YellowCommunications – Yellow; Sensor Data Transmitter A: Not Functional Mechanical – Green Propulsion - Green

4 GOES CENTRAL GOES-10 drifting to 60W (~107W) (April 25, 1997) –Instrument Status Imager and Sounder- Green (operational) Yellow SEM – Yellow; EPS channels P6, P7 noisy SXI (Solar X-Ray Imager) – Not Flown – Subsystem Status AOCS – Green Thermal Control – Green Electrical Power – Green Telemetry/Command – Green YellowCommunications – Yellow; Sensor Data Transmitter A: Not Functional YellowMechanical – Yellow; Solar Array runs in reverse direction Propulsion - Green

5 GOES Launch Planning

6 GOES-N Post Launch Launched May 24, 2006 –18 days orbit raising, deployments –6 days S/C subsystem start up Normal on-orbit Mode: now GOES-13 –Currently undergoing PLT by NASA –Instrument Startup/Cal –Cooler Cover Deployment (L+45 days) Transition to Storage Mode – Dec –L+6 months –Handover to NOAA

7 GOES-13 Changes Imaging/Sounding Through Eclipse –Larger Batteries Star Trackers as Primary Attitude Reference –Improved Navigation Performance –2KM Pointing Accuracy (vs 4/6km today) –Faster Recovery after Maneuvers Elimination of Solar Sail Results in Cooler IR Detectors WEFAX Becomes LRIT EMWIN

8 WEFAX/LRIT Differences GOES I-MGOES N-P NameWEFAXLRIT SignalAnalogDigital Center Frequency MHz MHz Protocol N/ACCSDS Data Rate N/A64/128 Kbps

9 EMWIN Differences GOES I-MGOES N-P Center Frequency MHz MHz ModulationFSKBPSK CodingNoneForward Error Correcting PowerExceeds ITUWithin ITU limits (but reduced) Data Rate9.6 Kbps 9.6 Kbps

10 GOES-R Changes Advanced Baseline Imager (ABI)

11 The Advanced Baseline Imager ABICurrent Spatial resolution Visible (0.64 mm)0.5 km Approx. 1 km All other bands2 kmApprox. 4 km Spatial coverage Full disk 4 per hourEvery 3 hours CONUS 12 per hour~4 per hour Operation during eclipse YesNo Spectral Coverage 8-12 bands5 bands

ABI - Benefits from Additional Channels –8.5: More accurate and consistent delineation of ice from water cloud both day and night Thin Ci can be detected in conjunction with 11 SST estimates will be improved by better atmospheric corrections in relatively dry atmospheres –10.35: Cloud particle size & cloud liquid water content both day and night Improved low level moisture determination (with 11.2 & 12.3 channels –13.3: Improved determination of cloud height and opacity –Improved satellite derived winds

ABI - Benefits from Additional Channels –1.61: Improved ability to distinguish cloud from snow and ice cloud from water cloud (daytime only) –7.0: Better depiction of mid-tropospheric flow –Improved moisture drift winds –1.375: Daytime thin cirrus detection –0.86: Aerosols, ocean observation, vegetation