mcmurdo ground station workshop npoess direct readout march 10, 2004

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McMurdo Ground Station Workshop

NPOESS Direct Readout

March 10, 2004

McMurdo Ground Station Workshop

NPOESS Direct Readout

March 10, 2004

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DRL Roadmap to NPP and Beyond

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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

NPOESS Program Schedule2002A&O Contract Award

2003 NPP Critical Design Review 2005 NPOESS Preliminary Design Review 2006NPOESS Critical Design ReviewNPP Ground ReadinessNPP LaunchField Terminal Technical Specification

2007NPP HRD Demonstration

2010 NPOESS Ground ReadinessNPOESS C-1 LaunchNPOESS HRD/LRD Demonstration

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1/041/03 12/11

1/05 1/06 1/07 1/08 1/09 1/10 1/11

8/03Build 1.1

9/04Build 1.2

6/05Build 1.3

2/06Build 1.4

10/06NPP Launch

4/07Build 2.1

4/07NPP Demo

4/08Build 2.2

1/09Build 2.3

7/07FTS

FAT (2.1)

11/09NPOESS C1

Launch

12/09FTS NPOESS CM

Release

6/11NPOESS C2

Launch

5/05HRD/LRDTechnical

Specifications 7/08FTS

FAT (2.2)

4/09FTS

FAT (2.3)

You are here

Direct Readout Software Production Schedule

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NESDISAFWAFNMOCNAVO

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


IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del


IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del


IngestIngest

Cal/ValCal/Val

Proc

ess

Proc

e ss

Data DelData Del

* Patent Pending

*

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Fully Integrated System Architecture for Optimal Mission Performance

6 6

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

High Rate Data & Low Rate Data Direct Readout Terminals

CONOPS Delivers Timely and Reliable Data

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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

Regional Users

SARSAT, ADCS Terminals

CONUS Gateways

(4x)

Deliver DataProducts

SMD

LRD

HRD

Space Vehicle 3Ground

Receptor

GroundStation

Mission Management Center


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)



HRD, LRD Data flow for Regional Users

Users

SARSAT, ADCS Terminals

CONUS Gateways

(4x)


SMD

LRD

HRD

Space Vehicle 3Ground

Receptor

GroundStation

Mission Management Center


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Field Terminal Segment Architecture

SignalProcessingSubsystem

(SPS)

Mission ApplicationSubsystem

(MAS)

Data ProcessorElement

(DPE)

NPOESS HRD or LRDNPP HRD

FT Technical Specification

Internet

Mission SupportData Server

Field Terminal Segment

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NPOESS Field Terminal Proposed Link Parameters

Parameter High Rate Data Low Rate DataCarrier Frequency 7812 MHz 1704 MHz

Max Occupied 30.8 MHz 12.0 MHzBandwidth

Channel Data Rate* 40 Mbps 11.64 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

VIIRSCMISCrIS/ATMSOMPSSESGPSOSERBSTSISALTAPS

2519

31

1325134

NPOESS Stored Mission Data (SMD)Environmental Data Records (EDRs)

Atm Vertical Moisture ProfileAtm Vertical Temp Profile

Imagery

Sea Surface TemperatureSea Surface Winds

Soil Moisture

Active Fires

Aerosol Particle SizeAerosol Refractive IndexAlbedo (Surface)Auroral BoundaryAuroral Energy DepositionAuroral ImageryCloud Base HeightCloud Cover/LayersCloud Effective Particle SizeCloud Ice Water PathCloud Liquid Water

Cloud Optical ThicknessCloud Particle Size/Distribution

Cloud Top Height

Aerosol Optical Thickness

Cloud Top Pressure

Cloud Top Temperature Downward LW Radiance (Sfc)Downward SW Radiance(Sfc)

Electric FieldElectron Density ProfileEnergetic Ions

Geomagnetic Field Ice Surface TemperatureIn-situ Plasma FluctuationsIn-situ Plasma Temperature

Ionospheric ScintillationMedium Energy Charged ParticlesLand Surface Temperature

Net Heat FluxNet Solar Radiation (TOA)Neutral Density ProfileOcean Color/ChlorophyllOcean Wave CharacteristicsOutgoing LW Radiation (TOA)

Ozone; Total Column/ProfilePrecipitable Water

Precipitation Type/Rate Pressure (Surface/Profile)Sea Ice CharacterizationSea Surface Height/Topo.Snow Cover/DepthSolar Irradiance

Supra-Thermal-Auroral Part.Surface TypeSurface Wind StressSuspended MatterTotal Water ContentVegetation Index

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2519

31

1325134

NPOESS High Rate Data (HRD)Environmental Data Records (EDRs)


Imagery


Soil Moisture

Active Fires



Cloud Top Height


Cloud Top Pressure









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2519

31

1325134

NPOESS Low Rate Data (LRD)Environmental Data Records (EDRs)


Imagery


Soil Moisture

Active Fires



Cloud Top Height


Cloud Top Pressure









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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






Attributes better than TRD threshold

Attributes at TRD threshold

Attributes below TRD threshold

Total attributes = 861


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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


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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 VIIRS mission data for increased mission data throughput in downlink

-

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 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

Signal Processing Subsystem

Data Processor Element

MissionApplicationSubsystem

Post ProcessingVisualization

Tracking Antenna

LNADownConverter/

FilterReceiver/

DemodulatorBit

SynchronizerViterbi

Decoder

CCSDS Processing

FrameSynchronizer

CADUs

Derandomization

Reed SolomonDecoding

VCDU Processing

Ingest

GranulateHRD/LRD MissionData and MissionSupport DataGenerate RDRs

Data ManagementStore and Retrieve xDRs

Data Delivery

Convert xDRs toHDF5, Deliver toMAS

Infrastructure

Work Flow Management

APs

ProcessingGenerate SDRs, TDRs,EDRs

CVCDUs

VCDUs

AES DecryptionVCDUs

MissionSupport

DataServer

MSD fornetwork

connectedField

Terminals

Downlink FromSpacecraft

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All EDR Production Timing for Field Terminal Configurations

15 Minute Requirement

(3 S/C over 3 ½ days)

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Field Terminal Data Processor Element Software DesignOpen Systems Group standards compliance at interfaces minimizes configurations

Programmable LRD downlink favors 8 Priority EDRs

Onboard VIIRS data compression rates by APID for LRD

Flexible ancillary data approach • Dynamic ancillary data via satellite downlink • NPOESS Mission Support Data Server via Internet access

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FTS EDR Performance

HRD EDR Performance• 99% of performance attributes meet or exceed performance thresholds• Latency requirements achievable with current COTS workstations • Designed to recognize missing channels and ancillary data• Lossless RICE compression on VIIRS

LRD EDR Performance• 0.8 km resolution imagery and programmable downlink• Produces 8 high priority EDRs at or near LRD objective levels• Produces 15 lower priority EDRs and required predecessor EDRs• Designed to recognize missing channels and ancillary data• Lossless and Lossy JPEG2000 compression on selected APIDs

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Field Terminal Ancillary Data Approach

Dynamic Ancillary Data contained within LRD and HRD downlinks to meet specified performance levels• Data for six elevation levels from the NWP Forecast model

- Temperature- Humidity- Surface Pressure- Standard Pressure Levels- Wind Speed, Wind Direction- Precipitable Water

• For SESS EDR production- Effective Sunspot Number and Global Geomagnetic Kp

NPOESS Mission Support Data Server, accessible via Internet• Contains full set of Official Ancillary data• Contains full set of NPOESS Auxiliary data• Contains System status bulletins• Satellite vector information for antenna pointing and signal acquisition

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Ancillary Data DownlinkGraphical Representations

• 16 points spaced 200 kilometers apart at right angles to the ground track

• Completely covers the area viewed by all sensors

• Successive lines 200 kilometers apart

• Each line transmitted twice to ensure receipt by the ground

Path of the satellite

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What is NPOESS planning?

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

NPOESS to deliver data to users world-wide in accordance with U.S. National data policy• Mission data downlinked around the world at no cost to receivers• Data encryption/data denial capability exists for U.S. National defense

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

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NPOESS Points of Contact

Field Terminal IPT • John Overton: (301) 713-4747• Bill Munley: (301) 713-4782• Joe Mulligan: (301) 713-4803• John van de Wouw: (310) 812-0800

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

mcmurdo ground station workshop npoess direct readout march 10, 2004

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