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Options for Data Distribution in the GOES-R Series

Options for Data Distribution in the GOES-R Series. GOES User Conference SESSION 5 Peter Woolner / Mitretek. “Data” Types. GOES Re-Broadcast (GRB) SEM & SXI Instrument of Opportunity (IOO) e.g., SEI, Volcam, etc. “Data” Types (CONTINUED). Low Rate Information Transmission (LRIT)

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Options for Data Distribution in the GOES-R Series

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  1. Options for Data Distribution in the GOES-R Series GOES User Conference SESSION 5 Peter Woolner / Mitretek

  2. “Data” Types • GOES Re-Broadcast (GRB) • SEM & SXI • Instrument of Opportunity (IOO) • e.g., SEI, Volcam, etc.

  3. “Data” Types (CONTINUED) • Low Rate Information Transmission (LRIT) • Emergency Managers Weather Information Network (EMWIN) • Data Collection System (DCS) • DCPR and DCPI • Search and Rescue Satellite Aided Tracking (SARSAT)

  4. GOES Re-Broadcast (GRB) • Currently the “GVAR” data stream from the Imager and Sounder • Level-1B Data . . . Calibrated and Earth-located IR, and Normalized and Earth-Located Visible • GRB will be generated from the ABI & ABS (or GIFTS) as Level-1B Data Set • May be various ‘flavors’ of GRB (high-rate and low-rate) • GRB may NOT contain ALL ABI/ABS Data

  5. GRB Option #1 • High rate GRB 17.6 Mbps • ABI (all data) 7.0 Mbps • ABS Radiance (all data) 10.0 Mbps • ABS Products 0.6 Mbps • Low rate GRB ABI & ABS 4.0 Mbps

  6. GRB Option #2 • High rate GRB ABI & ABS 10.6 Mbps • ABI (all data) 7.0 Mbps • ABS Radiance 3.0 Mbps • Principal Data Components (x4 reduction factor) • ABS Products 0.6 Mbps • Low rate GRB ABI & ABS 4.0 Mbps

  7. GRB Option #3 • High rate GRB ABI & GIFTS 72.6 Mbps • ABI (all data) 7.0 Mbps • GIFTS Radiance (all data) 65.0 Mbps • GIFTS Products 0.6 Mbps • Low rate GRB 4.0 Mbps

  8. GRB Option #4 • High rate GRB ABI & GIFTS 23.6 Mbps • ABI (all data) 7.0 Mbps • GIFTS Radiance 16.0 Mbps • Principal Data Components (x4 reduction factor) • GIFTS Products 0.6 Mbps • Low rate GRB ABI & GIFTS 4.0 Mbps

  9. GRB Option #5 • High rate GRB ABI & GIFTS 14.6 Mbps • ABI (all data) 7.0 Mbps • GIFTS Radiance 7.0 Mbps • Principal Data Components (x10 reduction factor) • GIFTS Products 0.6 Mbps • Low rate GRB ABI & GIFTS 4.0 Mbps

  10. GRB Communication Links • Options 1 and 2 • All Downlinks L-Band (1672-1698) • Option 2 Only Needs 1672 to 1695 MHz • Options 3, 4, and 5 • High Rate GRB X-Band (7450-7550) • All Other Downlinks L-Band • Put High and/or Low Rate GRB on Commercial Satellite Link (C-Band) • Modulation Types and Bandwidth’s Vary with Option

  11. GRB Communication Links (CONTINUED) • Downlink Freq. Band: As identified in the options • Polarization: Linear N-S • Coverage: Earth hemisphere • to a minimum elevation of 5 degrees • User Data Rate: As identified in the options • RF Data Rate: Contractor specified (at PDR) • Data Format: NRZ-S • Modulation: Contractor specified (at PDR) • FEC Coding: Contractor specified (at PDR) • Bandwidth: Contractor specified (at PDR) • Required BER: 1 in 106 • Downlink EIRP: Contractor specified (at PDR) • Ground G/T: 15.2 dB/K at L-band TBD at X-band

  12. “GVAR” to GRB Transition • GVAR continues as long as a GOES-I/Q spacecraft is operational • GRB becomes active with GOES-R • Creation of Pseudo-GVAR is being considered to aid transitions during the period when there is one GOES-I/Q spacecraft and one GOES-R spacecraft operational

  13. Multi-use Data Link (MDL) • SEM, SXI, and Instruments of Opportunity • Spacecraft performance data • e.g., star trackers, dynamic interaction tools, etc. • Copy of PCM Health & Safety Telemetry • Intend to Include with Sensor Data

  14. MDL Transition • No Transition Period Planned • Operational with GOES-R • Becomes Part of Sensor Data

  15. LRIT Communications Link • Downlink Frequency: 1693.4 MHz • (3 MHz higher for Option 1 and possibly 3, 4, 5) • Polarization: Linear N-S • Coverage: Earth hemisphere • to a minimum elevation of 5 degrees • User Data Rate: 256 kbps • Data Format: NRZ-M • Modulation: QPSK • FEC Coding: Convolutional • Rate ½, Constraint length K=7 and R-S (223, 255) • Bandwidth: 600 kHz • Required BER: 1 in 108 • Downlink EIRP: 57 dBmi • Ground G/T: -0.3 dB/K

  16. LRIT Transition • No Transition Period Planned • Frequency Change • Modulation Change (QPSK vs BPSK) • Data Rate Growth • Product Suite Expansion

  17. EMWIN Communications Link • Downlink Frequency: 1692.7 MHz • (3 MHz higher for Option 1 and possibly 3, 4, 5) • Polarization: Linear N-S • Coverage: Earth hemisphere • to a minimum elevation of 5 degrees • User Data Rate: 56 kbps • RF Data Rate: 128.2 kbps • Data Format: NRZ-L • Modulation: BPSK • FEC Coding: Convolutional • Rate ½, Constraint length K=7 and R-S (223, 255) • Bandwidth: 256.4 kHz • Required BER: 1 in 106 • Downlink EIRP: 54 dBmi to 53 dBmi • maximum variation due to all causes • Ground G/T: -0.3 dB/K

  18. EMWIN Transition • No Transition Period Planned • Frequency Change (Except Option 2) • NO Modulation or Coding Change • Data Rate Growth • 9.6 Kbps to 56 Kbps • Product Suite Expansion

  19. DCPR Communications Link • Downlink Frequency: 1694.3 - 1694.7 MHz • or 1694.6 to 1695.0 MHz \ • or 3 MHz higher for Option 1 and possibly 3, 4, 5 • Polarization: Uplink: RHC, Downlink: Linear N-S • Channels: Up to 200 channels 1.5 kHz wide, and 33 channels 3 kHz wide • (2 adjacent 1.5 kHz channels will be allocated for 1200 bps) • Coverage: Earth hemisphere • to a minimum elevation of 5 degrees • User Data Rate: 100, 300, and 1200 bps • Data Format: NRZ-L • Modulation: Bi-phase (±60O), and 8PSK with Trellis Codulated FEC • Bandwidth: 500 kHz • Required BER: 1 in 106 • Downlink EIRP: 52 dBmi • Uplink EIRP: (TBD) • Ground G/T: 15 dB/K

  20. DCPI Communications Link • Uplink Frequencies: 2034.9125 (West), 2034.900 (East), or 2034.8875 (spare) MHz • Downlink Frequencies: 468.8375 (West), 468.8250 (East), or 468.8125 (spare) MHz • Polarization: Uplink: Linear N-S, Downlink: RHC • Channels: One at a time • Coverage: Earth hemisphere • to a minimum elevation of 5 degrees • User Data Rate: 100 bps • Data Format: NRZ-L • Modulation: Bi-phase (±60O) • Bandwidth: Excess bandwidth factor of 1.00 • Required BER: 1 in 106 • Downlink EIRP: 45 dBmi • Uplink EIRP: (TBD) • Ground G/T: -29 dB/K

  21. DCPR/DCPI Transition • No Changes affecting DCPs • Retains 300 bps and 1200 bps DCPs • Possible L-Band Frequency Change to the DRGS • Considering allowing CDMA • Operates transparent to current users • Perhaps as many as 100 new “Channels” in the ‘noise’

  22. SARSAT Communications Link • Uplink Frequencies: 406.01 – 406.09 MHz 1645.65 MHz (acknowledge channel) • Downlink Frequencies: 1544.5 MHz +/-0.1 MHz 1544.1 MHz (acknowledge to beacon) • Polarization: Uplink & Downlink: RHC • Channels: One at a time • Coverage: Earth hemisphere • to a minimum elevation of 5 degrees • User Data Rate: 400 bps • Data Format: NRZ-L • Modulation: Bi-phase (±60O) • Bandwidth: Excess bandwidth factor of 1.00 • Required BER: 1 in 105 • Downlink EIRP: 45 dBmi • Uplink EIRP: 5-watts • Ground G/T: 6 dB/K

  23. SARSAT Transition • NONE • New capability for acknowledgment to the beacon

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