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Overview of the Current NOAA/GOES PROGRAM

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. GOES EAST. GOES-12 at 75W (July 23, 2001) Instrument Status

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Overview of the Current NOAA/GOES PROGRAM

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  1. Gene LeggOffice of Satellite Data Processing and DistributionAsia 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) • 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 • Communications – 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) • 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 • Communications – Yellow; Sensor Data Transmitter A: Not Functional • Mechanical – 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. 2006 • 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-M GOES N-P ---------------------------------------------------------------------------------------- Name WEFAXLRIT Signal AnalogDigital Center Frequency 1691.000 MHz 1691.000 MHz Protocol N/ACCSDS Data Rate N/A64/128 Kbps

  9. EMWIN Differences GOES I-MGOES N-P ---------------------------------------------------------------------------------------- Center Frequency 1690.725 MHz 1693.500MHz Modulation FSKBPSK Coding NoneForward Error Correcting Power Exceeds ITUWithin ITU limits (but reduced) Data Rate 9.6 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 kmApprox. 1 km All other bands 2 km Approx. 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

  12. 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

  13. 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

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