1 McMurdo Ground Station Workshop NPOESS Direct Readout March 10, 2004.

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Presentation transcript:

1 McMurdo Ground Station Workshop NPOESS Direct Readout March 10, 2004

2 DRL Roadmap to NPP and Beyond

3 Reliable and timely collection, delivery, and processing of quality environmental data NPOESS Program Schedule 2002 A&O Contract Award 2003 NPP Critical Design Review 2005 NPOESS Preliminary Design Review 2006 NPOESS Critical Design Review NPP Ground Readiness NPP Launch Field Terminal Technical Specification 2007 NPP HRD Demonstration 2010 NPOESS Ground Readiness NPOESS C-1 Launch NPOESS HRD/LRD Demonstration

4 You are here Direct Readout Software Production Schedule

5 NESDISAFWAFNMOCNAVO Space Segment C3 Segment Field Terminal Segment GPS CLAS S NPOESS Stored Mission Data Svalbard Primary T&C NPP SMD Svalbard Primary T&C NPP SMD TDRSS Residuals NPOESS Spacecraft Launch Support Segment Launch Support Segment NPP (1030) MMC at Suitland Flight Operations Team Enterprise Management Mission Management Satellite Operations Data Monitoring & Recovery White Sands Complex LEO & A Backup T&C White Sands Complex LEO & A Backup T&C TDRSS ADCS SARSAT HRD Field Terminal HRD Field Terminal LRD Field Terminal LRD Field Terminal Schriever MMC Contingency Operations Team SD S AD S Data Handling Node, Front End Processor One full set resides in each of the 4 Centrals 15 Globally Distributed Receptor Sites Interconnected by Commercial Fiber NPP Stored Mission Data Command and Telemetry Interface Data Processing Segment One full set resides in each of the 4 Centrals Data Mgt Infra Ingest Cal/Val Process Data Del Data Mgt Infra Ingest Cal/Val Process Data Del Data Mgt Infra Ingest Cal/Val Process Data Del Data Mgt Infra Ingest Cal/Val Process Data Del * Patent Pending * 5 Fully Integrated System Architecture for Optimal Mission Performance

Sense Phenomena2. Downlink Mission Data Monitor and Control Satellites and Ground Elements TOBSTOBS LATMLATM LCLLCL FO G LRNLRN T AT M T SK Y eijeij MMC (Suitland) Schriever MMC High Rate Data & Low Rate Data Direct Readout Terminals CONOPS Delivers Timely and Reliable Data

7 NPOESS / NPP Sensor Manifest NPOESS NPOESS NPOESS NPP VIIRS CMIS CrIS ATMS SESS GPSOS SS SARSAT ADCS ERBS OMPS VIIRS CMIS VIIRS CMIS SS SARSAT ADCS ALT TSIS VIIRS CrIS ATMS SS CrIS ATMS APS SARSAT CERES OMPS

8 Field Terminals are an integral part of NPOESS Space Vehicle 2 Stored Mission Data flow for Centrals, Science Users C3S DHN & FEP IDPS) Centrals C3S Sensors Bus Space Vehicle 1 IDPS Centrals Users Science Users SMD Field Terminals (LRD, HRD) Field Terminal Software HRD, LRD Data flow for Tactical Users Regional Users SARSAT, ADCS Terminals CONUS Gateways (4x) Deliver Data Products SMD LRD HRD Space Vehicle 3 Ground Receptor Ground Station Mission Management Center Deliver Data Products Space Vehicle 2 Stored Mission Data flow for Centrals, Science Users C3S DHN & FEP IDPS) Centrals Centrals C3S Sensors Bus Space Vehicle 1 IDPS Centrals Users Science Users SMD Field Terminals (LRD, HRD) Field Terminal Software Field Terminal Software HRD, LRD Data flow for Regional Users Users SARSAT, ADCS Terminals CONUS Gateways (4x) Deliver Data Products SMD LRD HRD Space Vehicle 3 Ground Receptor Ground Station Mission Management Center Deliver Data Products

9 Field Terminal Segment Architecture Signal Processing Subsystem (SPS) Mission Application Subsystem (MAS) Data Processor Element (DPE) NPOESS HRD or LRD NPP HRD FT Technical Specification Internet Mission Support Data Server Field Terminal Segment

10 NPOESS Field Terminal Proposed Link Parameters ParameterHigh Rate DataLow Rate Data Carrier Frequency7812 MHz1704 MHz Max Occupied 30.8 MHz12.0 MHz Bandwidth Channel Data Rate*40 Mbps11.64 Mbps Ground Aperture Size<= 2.0 meters1.0 meters Minimum Elevation Angle5.0 degrees5.0 degrees * Includes all CCSDS overhead, Reed-Solomon forward error correction, and convolutional encoding

11 EDRs with Key Performance Parameters VIIRS CMIS CrIS/ATMS OMPS SES GPSOS ERBS TSIS ALT APS NPOESS Stored Mission Data (SMD) Environmental Data Records (EDRs) Atm Vertical Moisture Profile Atm Vertical Temp Profile Imagery Sea Surface Temperature Sea Surface Winds Soil Moisture Active Fires Aerosol Particle Size Aerosol Refractive Index Albedo (Surface) Auroral Boundary Auroral Energy Deposition Auroral Imagery Cloud Base Height Cloud Cover/Layers Cloud Effective Particle Size Cloud Ice Water Path Cloud Liquid Water Cloud Optical Thickness Cloud Particle Size/Distribution Cloud Top Height Aerosol Optical Thickness Cloud Top Pressure Cloud Top Temperature Downward LW Radiance (Sfc) Downward SW Radiance(Sfc) Electric Field Electron Density Profile Energetic Ions Geomagnetic Field Ice Surface Temperature In-situ Plasma Fluctuations In-situ Plasma Temperature Ionospheric Scintillation Medium Energy Charged Particles Land Surface Temperature Net Heat Flux Net Solar Radiation (TOA) Neutral Density Profile Ocean Color/Chlorophyll Ocean Wave Characteristics Outgoing LW Radiation (TOA) Ozone; Total Column/Profile Precipitable Water Precipitation Type/Rate Pressure (Surface/Profile) Sea Ice Characterization Sea Surface Height/Topo. Snow Cover/Depth Solar Irradiance Supra-Thermal-Auroral Part. Surface Type Surface Wind Stress Suspended Matter Total Water Content Vegetation Index

12 EDRs with Key Performance Parameters VIIRS CMIS CrIS/ATMS OMPS SES GPSOS ERBS TSIS ALT APS NPOESS High Rate Data (HRD) Environmental Data Records (EDRs) Atm Vertical Moisture Profile Atm Vertical Temp Profile Imagery Sea Surface Temperature Sea Surface Winds Soil Moisture Active Fires Aerosol Particle Size Aerosol Refractive Index Albedo (Surface) Auroral Boundary Auroral Energy Deposition Auroral Imagery Cloud Base Height Cloud Cover/Layers Cloud Effective Particle Size Cloud Ice Water Path Cloud Liquid Water Cloud Optical Thickness Cloud Particle Size/Distribution Cloud Top Height Aerosol Optical Thickness Cloud Top Pressure Cloud Top Temperature Downward LW Radiance (Sfc) Downward SW Radiance(Sfc) Electric Field Electron Density Profile Energetic Ions Geomagnetic Field Ice Surface Temperature In-situ Plasma Fluctuations In-situ Plasma Temperature Ionospheric Scintillation Medium Energy Charged Particles Land Surface Temperature Net Heat Flux Net Solar Radiation (TOA) Neutral Density Profile Ocean Color/Chlorophyll Ocean Wave Characteristics Outgoing LW Radiation (TOA) Ozone; Total Column/Profile Precipitable Water Precipitation Type/Rate Pressure (Surface/Profile) Sea Ice Characterization Sea Surface Height/Topo. Snow Cover/Depth Solar Irradiance Supra-Thermal-Auroral Part. Surface Type Surface Wind Stress Suspended Matter Total Water Content Vegetation Index

13 EDRs with Key Performance Parameters VIIRS CMIS CrIS/ATMS OMPS SES GPSOS ERBS TSIS ALT APS NPOESS Low Rate Data (LRD) Environmental Data Records (EDRs) Atm Vertical Moisture Profile Atm Vertical Temp Profile Imagery Sea Surface Temperature Sea Surface Winds Soil Moisture Active Fires Aerosol Particle Size Aerosol Refractive Index Albedo (Surface) Auroral Boundary Auroral Energy Deposition Auroral Imagery Cloud Base Height Cloud Cover/Layers Cloud Effective Particle Size Cloud Ice Water Path Cloud Liquid Water Cloud Optical Thickness Cloud Particle Size/Distribution Cloud Top Height Aerosol Optical Thickness Cloud Top Pressure Cloud Top Temperature Downward LW Radiance (Sfc) Downward SW Radiance(Sfc) Electric Field Electron Density Profile Energetic Ions Geomagnetic Field Ice Surface Temperature In-situ Plasma Fluctuations In-situ Plasma Temperature Ionospheric Scintillation Medium Energy Charged Particles Land Surface Temperature Net Heat Flux Net Solar Radiation (TOA) Neutral Density Profile Ocean Color/Chlorophyll Ocean Wave Characteristics Outgoing LW Radiation (TOA) Ozone; Total Column/Profile Precipitable Water Precipitation Type/Rate Pressure (Surface/Profile) Sea Ice Characterization Sea Surface Height/Topo. Snow Cover/Depth Solar Irradiance Supra-Thermal-Auroral Part. Surface Type Surface Wind Stress Suspended Matter Total Water Content Vegetation Index

14 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 Total 27 Better 2 Below 155 Total 13 Better 1 Below 197 Total 17 Better 2 Below 70 Total 9 Better 0 Below 98 Total 11 Better 2 Below 149 Total 43 Better 2 Below Attributes better than TRD threshold Attributes at TRD threshold Attributes below TRD threshold Total attributes = attributes above, 724 at, 9 below threshold

15 LRD Performance Approaches Objective Levels 164 Total Attributes 121 Meet Objective Attributes at or above TRD objective Attributes between TRD threshold & objective No attributes are below TRD threshold High Priority EDRs (8)Lower Priority EDRs (15) Supporting EDRs (5) 72Total Attributes 41 Meet Objective 249Total Attributes 143 Meet Objective Total attributes = attributes above, 180 at, 0 below threshold

16 Our LRD Approach Balances Performance and Provides Flexibility Limited LRD Bandwidth 3.88 Mbps Programmable LRD downlink provides flexibility for the future Programmable LRD downlink provides flexibility for the future 1330 & CrIS CMIS VIIRS Selection of compression applied to selected VIIRS mission data for increased mission data throughput in downlink

17 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

18 Field Terminal Data Flow

19 All EDR Production Timing for Field Terminal Configurations 15 Minute Requirement (3 S/C over 3 ½ days)

20 Field Terminal Data Processor Element Software Design Open 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

21 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

22 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

23 Ancillary Data Downlink Graphical 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

24 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

25 NPOESS Points of Contact Field Terminal IPT John Overton: (301) Bill Munley: (301) Joe Mulligan: (301) John van de Wouw:(310) NPOESS Websites (electronic bulletin board)