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GOES-8 to GOES-12 Transition. Direct Readout Conference Cindy Hampton NESDIS/Office of Satellite Operations. Agenda. Background Operational Transition Requirements Schedule Start Up Activity Product Transition Issues and Concerns. Background. GOES-8 Launched April 13, 1994

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goes 8 to goes 12 transition

GOES-8 to GOES-12 Transition

Direct Readout Conference

Cindy Hampton

NESDIS/Office of Satellite Operations

agenda
Agenda
  • Background
  • Operational Transition Requirements
  • Schedule
  • Start Up Activity
  • Product Transition
  • Issues and Concerns
background
Background
  • GOES-8 Launched April 13, 1994
  • GOES-8 Last Inclination maneuver: December 2002
    • Partial maneuver due to amount of fuel remaining
    • Inclination requirement exceeded in April 2003: + 0.5 degrees
  • GOES-12 launched in July 2001 and currently in storage mode at 105W.

GOES-8

Sept 2, 1994

operational transition requirements
Operational Transition Requirements
  • Minimal impact to users: no requirement to re-point GVAR antennas
  • Provide sufficient testing period to evaluate GOES-12 performance by OSDPD, OSO and users
  • Maintain continuous GOES-12 GVAR once has returned to normal on-orbit mode.
  • A single switch for users from GOES-8 to GOES-12 GVAR
  • Minimize RF interference during transition
socc schedule
SOCC Schedule
  • Return GOES-12 to On-orbit mode: January 9
  • Perform GOES-12 yearly north-south maneuver: January 14
  • Start GOES-12 Eastward Drift from ~110W towards 75W (~0.4 deg per day): January 17
  • Turn on Solar X-Ray Imager (SXI) High Voltage Power Supply and begin Imaging: January 21
  • Perform Image Navigation and Registration (INR) Recovery: January 20-24
  • Provide GVAR for user testing during drift: January 24-March 31
socc schedule1
SOCC Schedule
  • GOES-12 reaches ~ 81W: March 31
    • Perform swap of GOES-12 GVAR data for GOES-8 as GOES-East using GOES-8 GVAR transponder.
      • GOES-8 data would be available as backup via a ground patch.
      • Continue GOES-8 – normal housekeeping schedule
  • GOES-12/GOES-8 Cross Over: April 20
socc schedule2
SOCC Schedule
  • Stop GOES-12 drift at 74.5W: April 22
    • Communication Services switch over (e.g. WEFAX, EMWIN, DCS, SARSAT)
  • Start GOES-8 westward drift maneuver towards 105W: April 24
    • GOES-12 Imagery outage for ~2 hours due to RF command interference. GOES –10 Full Disk
start up activity january 9 24
Start Up ActivityJanuary 9-24
  • Scan Mirror Contamination Avoidance
  • Outgassing if required
  • Radiometric Calibration with ORA
  • INR Start up
  • SXI High Voltage Turn On
    • Scanning with sun by slewing solar array
goes 12 product testing
GOES-12 Product Testing
  • Products previously tested during NOAA Science Test Held from September 23, 2001 through October 27, 2001
    • Change in imager resolution and spectral bands resulted in more extensive product implementation and testing
      • 4km Channel 5 (12.0 µm) replaced with 8km Channel 6 (13.3 µm)
      • Resolution on Channel 3 (6.7 µm) improved from 8km to 4km
    • GOES-12 data continued through December 16, 2001
    • Data ingested and products created and tested in conjunction with ORA (Office of Research and Applications)
    • GOES-12 placed in storage December 20, 2001
ingest capability prior to 03 31 03
Ingest Capability – Prior to 03/31/03
  • Imager and sounder data to be made available
    • NESDIS – SSD, ORA
    • NWS – NCEPs, N-AWIPS, AWIPS (test bed)
  • External users will be able to access GVAR data directly from GOES-12 prior to March 31, 2003
    • NCEP - AWC, TPC via own antennas
    • Private companies – i.e. WSI, AccuWeather
    • Other Direct Readout Customers
product readiness
Product Readiness
  • Primary NWS Usage – AWIPS
  • AWIPS Readiness
    • Successful stream testing during NOAA Science Test with NWS Test Network Control Facility (TNCF – McLean, VA)
    • All AWIPS builds can handle GOES-12 Changes
    • Plans for additional final testing during move of GOES-12 prior to March 31, 2003
product readiness1
Product Readiness
  • GOES Products Ready Include:
    • Winds, Radiances, Imager and Sounder ASOS SCP (Automated Surface Observing System Satellite Cloud Product), AutoEstimator, Sounder DPI (Derived Product Imagery), Remapped Imagery: AWIPS, N-AWIPS and McIDAS (Man computer Interactive Data Access System), WEFAX / LRIT, SST (Sea Surface Temperature), CSBT (Clear Sky Brightness Temperature, experimental)
  • GOES Products Discontinued Due to Band 5 to 6 Changes:
    • Imager DPI, and some volcano products
      • All used internally within SSD. Replacement products available
  • GOES Products Planned Readiness:
    • GSIP (GOES Solar Insulation Product) code by Dec from ORA
    • ABBA (Advanced Biomass Burning Algorithm) code by Dec from CIMSS
slide13
Eclipse Season

GOES 8 Drift to 105W

Jan

Feb

Mar

Apr

May

Jun

GOES 8 to 12 Transition

G12 Station Δ, ~0.40 deg/day (~75 days)

SXI

Turn

On

1/21/03

Swap

GOES 8

GVAR

With GOES 12

3/31/03

G12 Return

To On-Orbit

Mode

1/9/03

Provide

GVAR

For Test

1/24/03

GOES 12

Reaches 75W

4/22/03

Delivery of Winds & Radiances

Products by 02/14/03

All GOES-12 Products Tested and Validated 03/07/03

All GOES - East Products Produced from GOES-12 03/31/03

Comm

Services

Switched

To GOES-12

4/22/03

Additional AWIPS Testing

slide14
For more information:

GOES-8 to GOES-12 Transition Plan

http://www.oso.noaa.gov/goes/index.htm

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