NPOESS Preparatory Project Overview

1
NPOESS Preparatory Project Overview

• Kenneth Schwer
• NASA NPP Project Manager
• James Valenti
• IPO NPP Project Manager (Acting)
• October, 2005

2
Agenda

• NPP Origins
• Roles and Responsibilities
• Mission Segments
• Developers
• Data Products
• Spacecraft and Instruments
• Mission Level 1 Schedule

3
NPP Origins

• NPP is a joint partnership between NASAs Science
  Mission Directorate (formerly the Office of Earth
  Sciences (OES)) and the NPOESS Integrated Program
  Office (IPO) initiated in 1998
• Feasibility study began in November 1998
• Formulation began in November 1999
• NASA Confirmation Review completed in November
  2003
• The partnership provides both organizations with
  considerable cost savings while achieving their
  key program objectives
• To provide NASA with continuation of a group of
  global change observations initiated by the Earth
  Observing System (EOS) TERRA, AQUA, and Aura
  missions
• To provide the NPOESS operational community with
  pre-operational risk reduction demonstration and
  validation for selected NPOESS instruments, and
  algorithms, as well as the ground system

4
NPP Roles / Responsibilities

• IPO
• Joint Program Management
• VIIRS Instrument
• CrIS Instrument
• OMPS Instrument
• Command, Communications, Control Segment (C3S)
• Interface Data Processing Segment (IDPS)
• Mission Operations

• NASA
• Joint Program Management
• Mission systems engineering, integration, and
  test
• ATMS Instrument
• Spacecraft and integration
• Launch vehicle and associated activities
• Science Data Segment (SDS)

• NOAA / NESDIS
• Archive Distribution Segment (ADS)

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Mission Segments and Responsibilities
Space Segment
6
System Context
NPP Mission System
Environment
Application Processing Systems (Centrals)
NPP
External Interface
GPS Navigational Signal
Radiances
MSO - 6
7
Space Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Spacecraft
Instruments
Ground Support Equipment

• Satellite Control
• Data Collection
• Narrow Band Comm
• Wide Band Comm

• Thermal Management
• Electrical Power
• Failsafe Protection

• VIIRS
• CrIS

• ATMS
• OMPS

• S/C
• Sensor

MSO - 7
8
Command, Control Communication Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Manage Mission
Manage Satellite Operations

• Plan mission events
• Build Command Seq
• Maintain Satellite DBs

• Monitor Control Satellite
• Prepare Send Commands
• Perform Eng Analysis

• Analyze Flight Dynamics
• Simulate Satellite
• Maintain Flight S/W

• Mission guidance
• External reporting

MSO - 8
9
Command, Control Communication Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Space / Ground Comm
Data Routing Retrieval

• Receive SMD
• Preprocess Downlinked data
• Rate buffer pre-processed data
• Compare received vs. transferred

• Provide inter-segment comm
• Provide intra-segment comm
• for C3S and IDPS

• Control ground comm
• Position antenna
• Uplink satellite loads
• Receive telemetry

MSO - 9
10
Interface Data Processing Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Interface Data Processing Segment

• Perform operational cal processing
• Provide data to Centrals
• Provide data records to ADS SDS

• Manage internal resources
• Ingest pre-processed SMD
• Process RDRs, SDRs, EDRs

MSO - 10
11
Science Data Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Science Data Segment

• Prototype future ESE data systems
• Assess EDRs for climate research
• Recommend improvements to algorithms and
  calibration

MSO - 11
12
Archive Distribution Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Archive Distribution Segment

• Ingest and validate data records
• Manage archive
• Service user requests

• Process orders
• Handle billing and accounting
• Distribute products

MSO - 12
13
Launch Support Segment
Space Segment
Launch Support Segment (LSS)
Command, Control Communication Segment (C3S)
Interface Data Processing Segment (IDPS)
Science Data Segment (SDS)
Archive Distribution Segment (ADS)
Launch Support Segment

• Launch Vehicle (Delta II 7920)
• Launch Pad
• Launch Support
• Payload Processing

MSO - 13
14
NPP Developers
15
NPOESS and NPP Mission Deliverables Are Data
Products

• Raw Data Records (RDRs)
• Similar to Level 1A for CEOS/NASA
• 150 giga bytes per day (similar to Terra or
  Aqua)
• Sensor Data Records (SDRs)
• Similar to CEOS/NASA Level 1B

• Environmental Data Records (EDRs)
• Similar to CEOS/NASA Level 2
• NPP Provides 25 of 55 NPOESS EDRs

12 Mbps
3 Mbps
CrIS/ATMS
APS
VIIRS
CMIS
SESS/ AURORA
ERBS
TSIS
ALT
OMPS
Fly on NPP
Fly on NPOESS
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NPP Data Product Definitions
S
3
Comm
Comm
Comm
\ Data Store
C
Receiver
Processing
Xmitter
CCSDS Level
SPACE SEGMENT
CCSDS (mux, code, frame)
Packetization
IDPS
RDR
Production
RDR Level
Compression
SENSORS
Anc.
Sensor
OTHER
SUBSYSTEMS
A/D Conversion
Data
SDR
Production
Cal.
Source
SDR Level
TDR
ENVIRONMENTAL
EDR
SOURCE
Production
EDR Level
COMPONENTS
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NPP System Architecture
GPS
TDRSS
WSC LEO A Backup TC
NESDIS Central
AFWA Central
Science Data Segment
Land PEATE
I/F Data Proc Segment
Command, Cntrl CommSegment
Ocean PEATE
SD3E
Data Del
Data Del
Ozone PEATE
GSE - Svalbard Primary TC NPP SMD
DQM
ITSE
Process
Process
Infra
Infra
Atmos PEATE
NICSE
Data Mgt
Data Mgt
Ingest
Ingest
Sounder PEATE
Archive Dist Segment
Ingest

• Mission Mgmt Center - Suitland
• Flight Operations Team
• Enterprise Management
• Mission Management
• Satellite Operations
• Data Monitoring Recovery

Archive Interchange
Datastore
Data Handling Node
Inventory
RoboticStorage
Archiver
Data Routing Retrieval
NPP Mission Data
Command and Telemetry
Key
Climate User Community
MSO - 20
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Space Segment Elements

• Space Segment is comprised of six elements
• Spacecraft
• VIIRS
• CrIS
• ATMS
• OMPS
• Ground Support Equipment

22
BCP-2000 Spacecraft for NPP

• BCP2000 used for
• Digital Globe's
• QuikBIRD (9/01)
• NASAs
• QuikSCAT (6/99)
• ICESat (1/03)
• Cloudsat (9/05)
• 5 year lifetime (Ps 0.87)
• Two MIL-STD-1553 data busses (SC PL)
• NPP Modifications
• Mission Mass 2270 kg
• SC Mass 1504 kg
• Max Payload Mass available 766 kg
• Mission Power (EOL) 2441W
• SC Power 1494 W
• Max Payload Power available 723 W
• IEEE-1394 data bus (PL)
• Two-battery power system

23
BCP-2000 Spacecraft for NPP

• Most SC components on the Zenith deck
• 3-panel solar array wing assembly
• Triple-junction Ga-As/Ga-In-P/Ge solar cells
• 22 IPV, 85 A-Hr batteries
• Prop module, RF comm, RWAs, TARAs,
• Torque Rods mounted internally
• Position knowledge to /-75 m/axis (3 sigma)
• Pointing control /-523.8 urad/axis (3 sigma)
• Pointing knowledge /-101.8 urad/axis (3 sigma)
• 268 Gb EOL science data storage (3.5 orbits)
• TC and GPS antennas on Zenith deck
• TC, HRD, SMD antennas on Nadir deck
• Heat pipe interface for ATMS
• VIIRS mounting coupled to bus star trackers
• Two sets of four 22N thrusters

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NPP Nadir Deck View

• Instruments lined up along cold facing panel

• Nadir facing antennas
• TC
• HRD
• SMD

CrIS and VIIRS cyro-radiators FOV to cold space
on cold facing side
VIIRS
CrIS
ATMS and VIIRS EM heat pipe radiators mounted to
cold facing panel
ATMS
OMPS
25
NPP Zenith Deck View

• Majority of S/C components are mounted on zenith
  deck

RF Comm boxes, RWAs, TARAS and Torquerods are
mounted internally
3-panel solar array wing assembly

• Zenith facing antennas
• TC to TDRSS
• GPS

Propulsion module Launch vehicle interface
26
ATMS/OMPS EDUs Integrated
OMPS BBMEB
OMPS pattern Generation Test equipment
ATMS EDU (w/ cover installed) Mounted to
heat-pipe assembly
Install VIIRS here
Install CrIS here
27
Visible Infrared Imaging Radiometer Suite

• VIIRS
• Continuous Cross-track scanner
• 22 spectral bands
• VisNIR, DNB, SWMIR, LWIR
• Heritage from MODIS on EOS Terra/Aqua
• Supplier Santa Barbara Remote Sensing (Raytheon)
• Key Subcontractors (NPOESS)
• Rotating Telescope - AXSYS
• FPAs, Raytheon Vision Systems
• Scan motor/encoder -BEI
• VIIRS Engineering Development Unit (EDU) is now
  in test
• VIIRS FU1 is being developed for NPP

28
VIIRS Products

• 21 of 22 VIIRS Bands are located in Atmospheric
  Windows
• VIIRS measures Earth surface and
  atmospheric/cloud radiance

• EDRs
• Imagery
• Sea Surface Temperature
• Soil Moisture
• Aerosols (3)
• Cloud Properties (7)
• Surface Albedo
• Land Surface Temperature
• Vegetation Index
• Snow Cover
• Land Surface Type
• Active Fires (ARP only)
• Ice Surface Temperature
• Net Heat Flux
• Ocean Color/Chlorophyll
• Sea Ice Characterization

Thermal emission region
Solar reflection region
RDRs
EDR Algorithms
SDRs (calibrated, geo-located radiance)
SDR Algorithms
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Cross-Track Infrared Sounder

• The Cross-track Infrared Sounder (CrIS) is a key
  sensor
• Fourier Transform Spectrometer providing high
  resolution IR spectra
• Fields of Regard each 3 x 3 FOVs
• Photovoltaic Detectors in all 3 bands
• 4-Stage Passive Detector Cooler
• 14 km nadir spatial resolution
• 2200 km swath width
• On-board internal calibration target
• Science pioneer AIRS on EOS Aqua
• Supplier ITT Industries
• Key subcontractors
• ABB Bomem, Interferometer, ICT SDR algorithm
• DRS, detectors
• AER, EDR algorithm

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CrIS Scanning Track
31
Advanced Technology Microwave Sounder

• 22-channels (23.8 GHz 183.3 GHz),
  functional-equivalent follow-on to AMSU-A and
  MHS, with improved sampling and coverage
• Total-power, two-point external calibration, self
  calibrated
• Continuous cross-track scanning, with torque
  momentum compensation
• Orbits 833 km (NPOESS) 824 km (NPP)
  sun-synchronous
• Four modes Off/Survival, Safe Hold, Diagnostic,
  Operational
• Software upload capability none required
• Built-in diagnostics capability
• In Operational Mode, operate continuously without
  additional commands
• Thermal control by spacecraft cold plate

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ATMS SCANNING TRACK
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Ozone Mapping Profiler Suite

• Provides Ozone Total-Column and Profile
  measurements
• Enables calculations of corresponding EDR
• Comprises 3 subsystems
• Nadir Sensor, Limb Sensor, Main Electronic Boxes
  (MEB)
• Sensors use identical FPAs
• Nadir Sensor comprises 2 co-boresighted
  spectrometers
• Nadir Total-Column (300 to 380 nm)
• Based on TOMS heritage
• 2800 km cross-track swath (110 FOV)
• Divided in 35 bins (50 km at nadir)
• Nadir Profile (250 to 310 nm)
• Based on SBUV2 heritage
• 250 km x 250 km cell

• Limb Sensor measurements are made through 3
  aft-viewing slits
• 1.95 degrees FOV
• 290 to 1000 nm spectral range
• 1 km sampling interval
• Boresight at 27.3 from velocity vector to look
  at Earth limb

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OMPS Scanning Track
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NPOESS Preparatory Project (NPP) Level 1 Joint
Master Schedule
DRAFT
Replan Underway
Status as of 7/31/05
2007
2008
2002
2003
2004
2005
2006
Calendar Year
Q4
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Launch
Launch
Pre-MOR
ORR
FIA
CRITICAL MILESTONES
MPDR
EMD
MCR
MOR
MCDR
4/08
Awd
NRA
10/06
MRR
SPACE SEGMENT
EM (FU1) Avail.
VIIRS FU1
CDR
EDU Del.
EDU
FU1
3/07
VIIRS Instrument (IPO)
PSR
CrIS FU1
CDR
EDU Del.
FU1
EDU2
Sys DDR
6/06
CrIS Instrument (IPO)
PSR
PER
CDR
EDU
ATMS PFM 9/05
ATMS Instrument (NASA)
PSR
EDU Test Complete
OMPS FM
ATP
CDR
7/06
OMPS Instrument (IPO)
PSR
CDR
Launch
ORR
RFO
Awd
Lnch
Bus/IRR
PER
IIRR 2
S/C Development (NASA)
4/08
9/05
PSR
S/C
LV
ICD
LRD
LRD
ATP
ICD
NLS
LAUNCH SUPPORT SEGMENT (NASA)
Awd
Ready
LV
Ground Ready 11/06
B1.2
CDA
EMD
PDR
RFP
B1.1
B1.4
B1.3
B1.4
Ops
COMMAND, CONTROL COMM SEGMENT (IPO)
Awd
EMD
Ground Ready 11/06
B1.3
CDA
B1.2
EMD
PDR
RFP
B1.4
B1.4
Ops
INTERFACE DATA PROCESSING SEGMENT (IPO)
EMD
Awd
B1.1
ATP
SDS
SCIENCE DATA SEGMENT (NASA)
Ready
Rel.
Rel.
Rel.
Rel.
Rel.
Rel.
Rel.
Lnch Ver. 10/06
Rel.
ARCHIVE DISTRIBUTION SEGMENT (NESDIS)
1.0
3.0
4.0
4.1
4.2
0.0
2.0/2.1
4.0
4.3
NCT1
NCT3
NCT4
NCT2a
NCT2b
ORT
MISSION SYSTEM INTEGRATION (NASA)