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Satellite Direct Readout Conference for the Americas

NPOESS Field Terminal Segment

December 11, 2002

Satellite Direct Readout Conference for the Americas

NPOESS Field Terminal Segment

December 11, 2002

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Reliable and timely collection, delivery, and processing of quality environmental data

Reliable and timely collection, delivery, and processing of quality environmental data

Program Schedule2002 A&O Contract Award

2003 NPP Critical Design Review NPOESS Preliminary Design Review 2004 NPOESS Critical Design Review

2005 NPP Ground Readiness Field Terminal H/W Procurement Specification

2006 NPP Launch NPP HRD Demonstration

2008 NPOESS Ground Readiness

2009 NPOESS C-1 Launch NPOESS HRD/LRD Demonstration

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NESDISAFWAFNMOCNAVO

System Architecture – Fully Integrated for Optimal Mission Performance

SpaceSegment

C3SegmentC3Segment

1330 1730 2130

FieldTerminal SegmentFieldTerminal Segment

GPS

CLASS

NPOESS Stored Mission Data

SvalbardPrimary T&CNPP SMD

SvalbardPrimary T&CNPP SMD

TDRSS

Residuals NPOESSSpacecraft

LaunchSupportSegment

LaunchSupportSegment

NPP (1030)

NPP (1030)

MMC at SuitlandFlight Operations Team• Enterprise Management• Mission Management• Satellite Operations• Data Monitoring & Recovery

White Sands ComplexLEO & A Backup T&C

White Sands ComplexLEO & A Backup T&C

TDRSS

ADCS

SARSAT

HRDField

Terminal

HRDField

Terminal

LRDField

Terminal

LRDField

Terminal

Schriever MMCContingency Operations Team

SDS

ADS

Data Handling Node, Front End ProcessorOne full set resides in each of the 4 Centrals

15 Globally DistributedReceptor Sites Interconnectedby Commercial Fiber

15 Globally DistributedReceptor Sites Interconnectedby Commercial Fiber

NPP Stored Mission Data Command and Telemetry

Interface Data Processing SegmentInterface Data Processing SegmentOne full set resides in each of the 4 CentralsOne full set resides in each of the 4 Centrals

Data MgtData MgtInfraInfra

IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del

Data MgtData MgtInfraInfra

IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del

Data MgtData MgtInfraInfra

IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del

Data MgtData MgtInfraInfra

IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del

* Patent Pending

*

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CONOPS Delivers Timely and Reliable Data

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1. Sense Phenomena 2. Downlink Mission Data

Monitor and Control Satellites and Ground Elements

T

O

B

S

L

A

T

M

L

C

L

FOG

L

R

N

TATM

TSKY

ei

j

MMC (Suitland)

Schriever MMC

HRD and LRD Field Terminals

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NPOESS / NPP Sensor Manifest

1330 - NPOESS 1730 - NPOESS 2130 - NPOESS1030 - NPP

VIIRSVIIRS

CMISCMIS

CrISCrIS

ATMSATMS

SESSSESS

GPSOSGPSOS

SSSS

SARSATSARSAT

ADCSADCS

ERBSERBS

OMPSOMPS

VIIRSVIIRS

CMISCMIS

VIIRSVIIRS

CMISCMIS

SSSS

SARSATSARSAT

ADCSADCS

ALTALT

TSISTSIS

VIIRSVIIRS

CrISCrIS

ATMSATMS

SSSS

CrISCrIS

ATMSATMS

APSAPS

SARSATSARSAT

CERESCERES

OMPSOMPS

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Field Terminals are an integral part of NPOESS

Space Vehicle 2

Stored Mission Data flow for Centrals, Science Users

C3SDHN &

FEP(@ IDPS)

IDP@

Centrals

C3S

Sensors Bus

Space Vehicle 1

IDPS

Centrals Users

Science Users

SMD

Field Terminals (LRD, HRD)

FieldTerminalSoftware

HRD, LRD Data flow for Tactical Users

Tactical Users

SARSAT, ADCS Terminals

CONUS Gateways

(4x)

Deliver DataProducts

SMD

LRD

HRD

Space Vehicle 3Ground

Receptor

GroundStation

Mission Management Center

Deliver DataProducts

Space Vehicle 2

Stored Mission Data flow for Centrals, Science Users

C3SDHN &

FEP(@ IDPS)

IDP@

Centrals

IDP@

Centrals

C3S

Sensors Bus

Space Vehicle 1

IDPS

Centrals Users

Science Users

SMD

Field Terminals (LRD, HRD)

FieldTerminalSoftware

FieldTerminalSoftware

HRD, LRD Data flow for Tactical Users

Tactical Users

SARSAT, ADCS Terminals

CONUS Gateways

(4x)

Deliver DataProducts

SMD

LRD

HRD

Space Vehicle 3Ground

Receptor

GroundStation

Mission Management Center

Deliver DataProducts

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Field Terminal Segment Architecture

DataProcessorElement

FT ProcurementSpecifications

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Field Terminal Procurement Specification Link Parameters

Data LatencySMDHRD/LRD

Threshold Objective

128 attributes above, 724 at, 9 below threshold128 attributes above, 724 at, 9 below threshold305 attributes above, 180 at, 0 below threshold305 attributes above, 180 at, 0 below threshold

Data QualitySMD/HRDLRD

Parameter NPOESS HRD NPOESS LRDCarrier Frequency 7812 MHz or 7830 MHz 1706 MHz

command selectable

Max Occupied 30.8 MHz 8.0 MHzBandwidth

Channel Data Rate* 40 Mbps 7.76 Mbps

Ground Aperture Size <= 2.0 meters 1.0 meters

Minimum Elevation Angle 5.0 degrees 5.0 degrees

* Includes all CCSDS overhead, Reed-Solomon forward error correction, and convolutional encoding

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EDRs with Key Performance Parameters

HRD Environmental Data Records (50 EDRs)

Cloud Top Pressure Cloud Top Temperature Downward Longwave Radiance (Sfc) Downward Shortwave Radiance(Sfc) Electric FieldElectron Density ProfileEnergetic Ions Geomagnetic Field Ice Surface TemperatureIn-situ Plasma Fluctuations In-situ Plasma Temperature Ionospheric ScintillationMedium Energy Charged Particles Land Surface Temperature Net Heat FluxNet Solar Radiation (TOA) Neutral Density Profile Ocean Color/ChlorophyllOcean Wave Characteristics Outgoing Longwave Radiation (TOA) Ozone - Total Column/Profile

Precipitable Water Precipitation Type/Rate Pressure (Surface/Profile) Sea Ice CharacterizationSea Surface Height/Topography Snow Cover/Depth Solar Irradiance Supra-Thermal-Auroral ParticlesSurface Type Surface Wind Stress Suspended Matter Total Water Content Vegetation Index

VIIRSCMISCrIS/ATMSOMPSSESGPSOSERBSTSISALTAPS

Atmospheric Vertical Moisture ProfileAtmospheric Vertical Temp ProfileImagerySea Surface TemperatureSea Surface WindsSoil MoistureAerosol Optical ThicknessAerosol Particle SizeAerosol Refractive IndexAlbedo (Surface)Auroral BoundaryAuroral Energy DepositionAuroral ImageryCloud Base HeightCloud Cover/LayersCloud Effective Particle SizeCloud Ice Water Path Cloud Liquid Water Cloud Optical ThicknessCloud Particle Size/Distribution Cloud Top Height

2519

31

1325134

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LRD Environmental Data Records (28 EDRs)

EDRs with Key Performance Parameters

Cloud Top Pressure Cloud Top Temperature Downward Longwave Radiance (Sfc) Downward Shortwave Radiance(Sfc) Electric FieldElectron Density ProfileEnergetic Ions Geomagnetic Field Ice Surface TemperatureIn-situ Plasma Fluctuations In-situ Plasma Temperature Ionospheric ScintillationMedium Energy Charged Particles Land Surface Temperature Net Heat FluxNet Solar Radiation (TOA) Neutral Density Profile Ocean Color/ChlorophyllOcean Wave Characteristics Outgoing Longwave Radiation (TOA) Ozone - Total Column/Profile

Precipitable Water Precipitation Type/Rate Pressure (Surface/Profile) Sea Ice CharacterizationSea Surface Height/Topography Snow Cover/Depth Solar Irradiance Supra-Thermal-Auroral ParticlesSurface Type Surface Wind Stress Suspended Matter Total Water Content Vegetation Index

VIIRSCMISCrIS/ATMSOMPSSESGPSOSERBSTSISALTAPS

Atmospheric Vert Moisture ProfileAtmospheric Vert Temp ProfileImagerySea Surface TemperatureSea Surface WindsSoil MoistureAerosol Optical ThicknessAerosol Particle SizeAerosol Refractive IndexAlbedo (Surface)Auroral BoundaryAuroral Energy DepositionAuroral ImageryCloud Base HeightCloud Cover/LayersCloud Effective Particle SizeCloud Ice Water Path Cloud Liquid Water Cloud Optical ThicknessCloud Particle Size/Distribution Cloud Top Height

2519

31

1325134

High Priority EDRs Lower Priority EDRs

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Excellent EDR Performance for HRD

120 attributes above, 738 at, 10 below threshold

Key EDRs (6)

Atmospheric EDRs (9)

Cloud EDRs (10)

Land EDRs (5)

Ocean Water EDRs (7)

Space Environment

EDRs (13)

126 Total27 Better2 Below

155 Total13 Better1 Below

197 Total17 Better2 Below

70 Total9 Better0 Below

98 Total11 Better2 Below

149 Total43 Better2 Below

Attributes better than TRD threshold

Attributes at TRD threshold

Attributes below TRD threshold

Total attributes = 861

128 attributes above, 724 at, 9 below threshold

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LRD Performance Approaches Objective Levels

164 Total Attributes121 Meet Objective

Attributes at or above TRD objectiveAttributes between TRD threshold & objectiveNo attributes are below TRD threshold

High Priority EDRs (8) Lower Priority EDRs (15)

Supporting EDRs (5)

72Total Attributes41 Meet Objective

249Total Attributes143 Meet Objective

Total attributes = 485

305 attributes above, 180 at, 0 below threshold

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Our LRD Approach Balances Performance and Provides Flexibility

Limited LRD Bandwidth

3.88 Mbps

Programmable LRD downlink Programmable LRD downlink provides flexibility for the futureprovides flexibility for the futureProgrammable LRD downlink Programmable LRD downlink

provides flexibility for the futureprovides flexibility for the future

1330 & 2130 1730

-

500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000

4,000,000

1 2 3 4

VIIRS**

CMIS*

CrIS*

ATMS*

Margin

Ancillary*

ALT

ADCS

DMDM

TOD

Encryption

CCSDS-

500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000

4,000,000

1 2 3 4

CrIS

CMIS

VIIRS

Selection of compression applied to selected APIDs for downlink for increased mission data throughput

-

500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000

4,000,000

1 2 3 4

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Key Field Terminal Performance Requirements

• Key performance requirements govern the attributes of the aperture, RF front-end and demodulator• “Processing” requirements (e.g., decoding) can be viewed as “functional”

requirements

• LRD Aperture-specific requirements: • 1-meter diameter

• Aperture/RF Front-end requirements: • G/T, passband amplitude and phase response (components of implementation

loss)

• RF Front-end/Demodulator requirements:• Implementation loss (covering passband response, phase noise, demodulator

performance with respect to theory, et al)

• Link budget entries serve as starting points for these requirement values• Requirements are not independent, trade-offs exist

• Key performance requirements govern the attributes of the aperture, RF front-end and demodulator• “Processing” requirements (e.g., decoding) can be viewed as “functional”

requirements

• LRD Aperture-specific requirements: • 1-meter diameter

• Aperture/RF Front-end requirements: • G/T, passband amplitude and phase response (components of implementation

loss)

• RF Front-end/Demodulator requirements:• Implementation loss (covering passband response, phase noise, demodulator

performance with respect to theory, et al)

• Link budget entries serve as starting points for these requirement values• Requirements are not independent, trade-offs exist

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Field Terminal Data Flow

Spacecraft Downlink

Field Terminal

Viterbi- decode

CCSDS Processor

Frame sync

Demod Down-convertfilter

LNA Bit Sync

|-------------- RF to Digital -----------------|

Raw Bit

Clocked Stream

CVCDUU R-S Decode

Derandom

FTS Software

HDF5

AncillaryDataStore

VCDU

Data Management

ProcessingCreate xDRs

Data DeliveryConvert EDRsto HDF

User Display SubsystemPost-processing Analysis

AES

Decrypt

MPDU

CAD

Infrastructure Networkconnectionprovidesaccess toancillary datafor connectedfield terminals

IngestAssembleandGranulateData

KeyMaterial

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HRD EDR Production Timing Assessment

HRD Field Terminal Sizing For IBM Power 4 (2007) (Max. Contact=15 min; All EDRs)

13.4

7.0

3.1

0.50.6

22.0

27.4

15.1

12.1

7.4

3.8

1.7

0.0

2.5

5.0

7.5

10.0

12.5

15.0

17.5

20.0

22.5

25.0

27.5

30.0

2 3 4 5 6 7 8 9

Number of CPUs

La

ten

cy

(Min

ute

s, W

ors

t C

ase)

HRD - 100%EDRsDelivered

HRD - 55%EDRsDelivered

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LRD EDR Production Timing Assessment

 

LRD Field Terminal Sizing For IBM Power 4 (2007)(Max. Contact= 15 min; LRD Subset of EDRs)

5.1

0.61.9

11.0

19.4

1.5

3.9

8.5

15.0

0.0

2.5

5.0

7.5

10.0

12.5

15.0

17.5

20.0

22.5

2 3 4 5 6 7 8 9 10

Number of CPUs

Lat

ency

(M

inu

tes,

Wo

rst

Cas

e)

LRD - 100%EDRs Delivered

LRD - 77%EDRs Delivered

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Field Terminal Software Data Processor Element Design

• Open Systems Group standards compliance at interfaces minimizes configurations

• Programmable LRD downlink favors 8 Priority EDRs

• Supports selection of onboard LRD data compression rates by APID

• Provides flexible ancillary data approach • Dynamic ancillary data via satellite downlink to meet

System Specification performance• NPOESS FT Mission Support Data Server via Internet for

increased performance

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FTS EDR Performance

HRD EDR Performance• 99% of EDR performance attributes meet or exceed performance thresholds• Analysis shows latency requirements achievable with current COTS desktop

workstations • As with the IDPS software, the FT software adapts to missing channel data or

missing ancillary data and uses graceful degradation rules• Lossless RICE compression on VIIRS

LRD EDR Performance• Meets key users’ needs: 0.8 km resolution imagery and programmable downlink• Produces the 8 high priority EDRs at or near LRD objective levels• Produces all 15 lower priority EDRs and required predecessor EDR products • Designed to automatically recognize missing channels and ancillary data• Lossless and Lossy JPEG2000 compression on selected APIDs

- selection of compression level to APID ongoing

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Field Terminal Ancillary Data Approach

• Dynamic Ancillary Data contained within LRD and HRD downlinks to meet specified performance levels• From the NWP Forecast model for six elevation levels at a given geographic location

repeated for 12,750 geographic locations around the world• LRD Dynamic Ancillary Data within LRD downlink

- Surface Pressure• HRD Dynamic Ancillary Data within HRD downlink

- Temperature- Humidity- Surface Pressure- Standard Pressure Levels- Wind Speed, Wind Direction- Precipitable Water- Effective Sunspot Number and Global Geomagnetic Kp for SESS EDR production

• NPOESS FT Mission Support Data Server via Internet for increased EDR performance• Contains full set of Official Ancillary data• Contains full set of NPOESS Auxiliary data• Contains Community bulletins as to System status• Antenna pointing information for signal acquisition

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Equal-distant Data Distribution for Ancillary Data

Equal-distant ancillary data cells provide for efficient data handling and storage:

FT Approach 12,750 cellsLat/Lon Approach 64,800 cells

Ancillary data cells corresponding to two VIIRS swaths

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What is NPOESS planning?

NPOESS responsible for building software and terminal specifications, but not for building terminals• NPOESS will publish specifications and design trade information for users• NPOESS will make software available on the program website for download

NPOESS will deliver data to users world-wide in accordance with US national data policy• Data will be downlinked openly around the world at no cost to receivers• Capability for data encryption/data denial exists for national defense needs

- Denial can be done on a world-wide or geographic basis

NPOESS calls the world-wide users “field terminals” (to differentiate from the Weather Centrals)

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Integrated Program Office Points of Contact

Field Terminal IPT • Mr. John Overton: (301)-427-2087 ext 216• Mr. Bill Munley: (301)-4270010 ext 193• Mr. Joe Mulligan: (301)-2124 ext 177

NPOESS Websites• http://www.npoess.noaa.gov• http://npoesslib.ipo.noaa.gov/ (electronic bulletin board)

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NPOESS – Serving Worldwide User Needs

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