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Overview of the Current NOAA/GOES PROGRAM

Vince Tabor Office of Satellite Data Processing and Distribution Asian Pacific Data Exchange and Utilization Meeting, Seoul, June 1-3, 2005. Overview of the Current NOAA/GOES PROGRAM. GOES EAST. GOES-12 at 75W (July 23, 2001) Instrument Status Imager and Sounder- Green (operational)

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Overview of the Current NOAA/GOES PROGRAM

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  1. Vince TaborOffice of Satellite Data Processing and DistributionAsian Pacific Data Exchange and Utilization Meeting, Seoul, June 1-3, 2005 Overview of theCurrentNOAA/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 (11/03) and High Voltage Power Supply failure (02/03/04) • Subsystem Status • AOCS – Green • Thermal Control – Green • Electrical Power – Green • Telemetry/Command/Communications – Green • Mechanical - Green • Propulsion - Green

  3. GOES WEST • GOES-10 at 135W (April 25, 1997) • Instrument Status • Imager and Sounder- Green (operational) • SEM – Yellow (limited ops); EPS (Energetic Particle Sensor) anomaly (noise in channels P6 and P7 (04/26/03) • SXI (Solar X-Ray Imager) – Not Flown • Subsystem Status • AOCS – Green • Thermal Control – Green • Electrical Power – Green • Telemetry/Command/Communications – Yellow; DCPI – A transmitter failure (07/28/99) and SAR receiver anomalies (10/15/01) • Mechanical – Yellow; Solar Array slew degraded (08/11/98) • Propulsion - Green

  4. GOES STATUS

  5. First Solar X-Ray Imager (SXI) Image, September 7, 2001

  6. SXI Transit of Venus June 8, 2004

  7. GOES Launch Planning

  8. GOES-N Post Launch • Launch June 2005 (TBD) • 18 days orbit raising, deployments • 6 days S/C subsystem start up • Normal on-orbit Mode • Launch +24 days • Handover to NASA • Instrument Startup/Cal • Cooler Cover Deployment (L+45 days) • Transition to Storage Mode • L+6 months • Handover to NOAA

  9. GOES-N 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

  10. 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

  11. 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

  12. GOES-R Changes • Advanced Baseline Imager (ABI)

  13. 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

  14. 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

  15. 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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