1. User Readiness for GRB and HRIT/EMWIN
Paul Seymour and Matthew Seybold
NOAA/NESDIS/OSPO/Satellite Products and Services Division
NCWCP College Park, MD and NSOF Suitland, MD
V1 Slide 1

2. GRB L-Band Down-Link User NSOF WCDAS (and CBU) GRB – L-Band dual CP

3. GRB X-Band to L-Band Distribution
GRB – L-Band dual CP
GRB – L-Band dual CP
GRB – X-Band
GRB – L-Band dual CP
User
NSOF
WCDAS
(and CBU)
GRB

4. HRIT/EMWIN Flow User NSOF WCDAS (and CBU) HRIT/EMWIN – L-band
HRIT/EMWIN – S-band
User
NSOF
HRIT / EMWIN
WCDAS
(and CBU)
HRIT / EMWIN

5. GRB and HRIT/EMWIN in the GOES-R System
HRIT/EMWIN – L-band
GRB – L-Band dual CP
GRB – L-Band dual CP
GRB – X-Band
GRB – L-Band dual CP
HRIT/EMWIN – S-band
User
NSOF
HRIT / EMWIN
WCDAS
(and CBU)
HRIT / EMWIN
GRB

6. GRB Downlink Characteristics
Input Center Frequency: MHz
Content (specified for each of two polarization channels: LHCP, RHCP)
L1b data, QC data and metadata: ABI, SUVI, EXIS, SEISS, MAG
L2 data, QC data, metadata: GLM
GRB Information Packets
Data rate
31 Mbps maximum data rate
15.5 Mbps instantaneous maximum for each polarization channel
Downlink link margin: 2.5 db
Compression - Lossless compression required
JPEG2000 (ABI, SUVI) and SZIP (GLM); EXIS, SEISS and MAG data will not be compressed
Format
Outer Frame Format: DVB-S2
Inner Frame Format: CCSDS Space Packet
Coding
BCH + LDPC (2/3) for 8-PSK and LDPC (9/10) for QPSK
Modem Required C/No (dB-Hz): 78.6
Maximum Demodulator Required Eb/No (dB) for 1x10-10 BER:
3.7 dB (8 PSK); 3.9 dB (QPSK)
Minimum Antenna System G/T (dB/K) : 15.2 db/K (at 50 Elevation)
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7. Transition from GVAR to GRB
GOES Variable (GVAR)
GOES Rebroadcast (GRB)
Full Disk Image
30 Minutes
5 Minutes (Mode 4)
15 min (Mode 3)
Other Modes
Rapid Scan, Super Rapid Scan
3000 km X 5000 km
(CONUS: 5 minute)
1000 km X 1000 km
(Mesoscale: 30 seconds)
Polarization
None
Dual Circular Polarized
Receiver Center Frequency
MHz (L-Band)
MHz (L-Band)
Data Rate
2.11 Mbps
31 Mbps
Antenna Coverage
Earth Coverage to 50
Data Sources
Imager and Sounder
ABI (16 bands), GLM, SEISS, EXIS, SUVI, MAG
Space Weather
~2 Mbps
Lightning Data
0.5 Mbps
V1 Slide 6

8. Details of the GRB Dual Polarized Signal
GRB LHCP: L1b products from ABI 0.64 um band and 6 IR bands (3.9, 6.185, 7.34, 11.2, 12.3, and 13.3 um)
GRB RHCP: L1b products from ABI bands 0.47, 0.865, 1.378, 1.61, 2.25, 6.95, 8.5, 9.6 and 10.35um, L2+ GLM, L1b SUVI, L1b EXIS, L1b SEISS, and L1b Magnetometer products
Ensures load balanced utilization of the two circular polarizations, allowing users to receive all GRB products with a dual-polarized system (both LHCP and RHCP), and allowing users flexibility to receive GOES Imager legacy channels with a single polarized system (LHCP only).
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9. Details of the GRB Dual Polarized Signal
Reception of the GRB data requires a fixed dish antenna
Dual feed horns connected to 2 Low Noise Amplifiers (LNAs)
The LNA outputs are connected to RF/IF down-converters
RF/IF down-converters connected to DVB-S2 capable receivers
The GRB downlink center frequency of MHz requires an antenna G/T of 15.2 dB/K for worst-case locations.
This equates to a 4.5 meter dish with a system noise temperature of 120 K.
Most CONUS locations are anticipated to have acceptable performance with a 3.8 meter dish.
You will need a new receive system from antenna to computer.
V1 Slide 8

10. GRB Ground Antenna Sizes
GOES-West
GOES-East
V1 Slide 10
NOTES:
Calculations based on available data as of May 2011
Each antenna size is usable within the indicated contour
Rain attenuations included are:
1.3/1.6/2.0/2.2/2.5 dB (3.8 to 6 m)
4. An operating margin of 2.5 dB is included as the dual polarization isolation is likely to vary within each antenna size area

11. GOES-R Rebroadcast (GRB) Simulators
Self-contained hardware & software with pull out keyboard and screen
Available for 90-day loan periods with potential extensions
Includes training & tech support
Loans commenced Nov 2013 and slated through 2019
10 loans completed
Requests:
V1 Slide 3
Project Manager at HITS:
Ed Czopkiewicz )

12. Status of GRB Simulators
Current Status
Sim 1 – At CIRA/CSU in Ft. Collins, CO. Anticipated return to Depot on 6 Jun 2015.
Sim 2 – At NOAA Sat Conference. Anticipated return to Depot on 1 May 2015.
Sim 3 – At Harris Melbourne factory for support of NWS GRB Antenna program. Anticipated return to Depot on 20 Sep
Sim 5 – At University of WI – SSEC. Anticipated return to Depot on 15 Jul 2015.
Projected Loans
Sim 1 – None at this time
Sim 2 – None at this time
Sim 3 – None at this time
Sim 5 – Lockheed Martin at King of Prussia, PA in mid-August 2015
UW - SSEC
CIRA/CSU
Lockheed Martin
HITS-Omaha
Industry Day
RT Logic
Honeywell
Global Imaging
Sea Space
Quorum Communications
Locations
Current
General Dynamics
EEC Telespace
Past
Harris
Future
V1 Slide 4
Sim 4 is at Melbourne and is supporting testing for NSOF, WCDAS, CBU.
Simulators are available only within U.S. There are EAR restrictions.
Simulator specifications are available, so those may be provided upon request. (OSPO - Marlin Perkins, Harris - Ed Czopkiewicz).
We could potentially explore availability of software for international needs, but we would need to hold some technical discussions to gain a better understanding of the on-site data receipt plans.
Aug 14
Sep 14
Oct 14
Nov 14
Dec 14
Jan 15
Feb 15
Mar 15
Apr 15
May 15
Jun 15
Jul 15
GRB Sim 1
GRB Sim 2
GRB Sim 3
GRB Sim 4
GRB Sim 5
Available
Out To User
At Factory
NOAA Sat Conf
Depot Repair

13. GRB Summary
GRB allows real time distribution of all Level-1b GOES-R data products for direct readout users.
Direct Readout users need to upgrade all equipment for GOES-R:
Significant increase in data rate!!!
New data format!!!
GRB simulators may be scheduled now for Direct Broadcast reception equipment development and testing.
GRB Simulator located in the Patuxent Room Thru Wednesday Afternoon
Documents and updates to be posted on the GOES-R web site:
V1 Slide 19

14. User Readiness for GRB and HRIT/EMWIN
Paul Seymour and Matt Seybold
NOAA/NESDIS/OSPO/Satellite Products and Services Division
NCWCP College Park, MD and NSOF Suitland, MD
V1 Slide 20

15. HRIT/EMWIN Flow User NSOF WCDAS (and CBU) HRIT/EMWIN – L-band
HRIT/EMWIN – S-band
User
NSOF
HRIT / EMWIN
WCDAS
(and CBU)
HRIT / EMWIN

16. Transitioning HRIT/EMWIN from GOES NOP to GOES-R
NOAA NWS Emergency Managers Weather Information Network (EMWIN) is a priority-driven weather data broadcast service broadcast
Alerts/Watches/Warnings
Forecasts, Graphic Format Products and Imagery
Low cost ground receive stations
The NOAA NESDIS Low Rate Information Transmission (LRIT) is a collection of reduced resolution GOES and MTSAT imagery and products
GOES Visible, Infrared and Water Vapor Imagery at 4 Km Spatial Resolution
MTSAT Visible, Infrared and Water Vapor Imagery on LRIT-West
Tropical Storm Information
Copy of GOES Data Collection Service (GOES-DCS)
The GOES-R HRIT/EMWIN service combines LRIT and EMWIN with GOES-DCS on a single ~ 1 Meter Antenna
V1 Slide 23

17. Transitioning HRIT/EMWIN from GOES NOP to GOES-R
Improved data products for hemispheric retransmission
Faster full disk images: between 15 and 30 minutes
Warnings, Watches, Tropical Storm Information
Copy of GOES Data Collection System (GOES DCS)
Requires new antenna and receiver hardware
Receiver frequency shift to MHz from:
EMWIN MHz and LRIT
BPSK Polarization; EMWIN shift from Offset QPSK
Data Rate to a combined 400 Kilobits per Second from: EMWIN: 19.2 Kbps and LRIT : 128 Kbps (combined 147.2)
V1 Slide 24

18. Transition from LRIT and EMWIN to HRIT/EMWIN
LRIT / EMWIN Based
on GOES NOP
HRIT/EMWIN
On GOES-R Series
Full Disk, NH, SH images
3 Hourly Full Disk; .5 hour NH/SH; follows GOES East/West Schedule. RSO issue
Variable but planned 3 Channels of Full Disk every 15 minutes
Polarization
LRIT BPSK
EMWIN offset QPSK
BPSK
Receiver Center Frequency
LRIT MHz (L-Band)
EMWIN MHz (L-Band)
MHz (L-Band)
Data Rate
LRIT 128 Kbps
EMWIN 19.2 Kbps
400 Kbps
Antenna Coverage
Earth Coverage to 50
Imagery Data Sources
GOES NOP Imager (IR,VIS,WV)
MTSAT Imager
ABI (3 or more bands)
HBI (3 bands hourly-GOES W
EMWIN Products
Full Suite of Current Products
Combined w/ LRIT Products
GOES DCS
Copy of DCS observations
Copy of observations
V1 Slide 25

19. HRIT/EMWIN Downlink Characteristics
Coding – BPSK
Convolutional rate ½ code with constraint length 7 concatenated with Reed Solomon (255,223) with Interleave = 4
Square Root Raised Cosine filtering using an Alpha factor of 0.3
The resulting “Necessary Bandwidth” for this signal will be MHz
Modem Required: predicted C/No is in the range of dB
Maximum Demodulator Required is -
Eb/No is 4.6 dB for a BER of 1x10-8 after decoding
Minimum Antenna System
At 5 degree elevation, the minimum antenna is 1.2 meter.
At 10 degrees or more elevation the minimum size is 1.0 meter
Using a LNA or LNB with a system noise temperature of about 200 K will provide a G/T of 1.0 dB/K or -0.3 dB/K respectively
V1 Slide 27

20. Downconverted, Amplified Signal
SDR Hardware Overview
Low Noise L-band downconverter was designed at DCID
Downconverted, Amplified Signal
Digitizer Options:
USRP1, USRP2
OSMO SDR
Aerospace AID
Blade RF
Operating Systems:
Windows
Linux

21. HRIT/EMWIN Summary
HRIT/EMWIN will provide at least 3 channels of GOES-NOP and / or GOES-R imagery along with warnings, watches and forecast products along with a copy of the GOES-DCS observations
New data rate, center frequency and modulation (EMWIN Users)
Ground receive stations are COTS utilizing a 1 – 1.2 meter antenna
Take the time to talk to the vendors supplying LRIT Receive Stations
Prototype demo in the hallway through Thursday afternoon
Documents and updates to be posted on the GOES-R web site: --
V1 Slide 19