NPOESS Preparatory Project NPP Overview

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NPOESS Preparatory Project (NPP)Overview
March 29, 2008
Daniel DeVito NASA / NPP Deputy Project Manager
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NPP Mission Overview
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NPP Origins

• NPP is a joint partnership between NASAs Science
  Mission Directorate 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

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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
• CERES 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
NPP cost is more than 1.5B Mission with about a
50/50 split between NASA IPO.
Space Segment
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NPP Developers
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Mission Data Products

• NPP (and later the NPOESS Space Segment) will
  produce sensor data for processing by the NPOESS
  Interface Data Processing Segment (IDPS)
• The IDPS will produce Environmental Data Records
  (EDRs) of geophysical products in an operational
  environment while minimizing data latency
• NASA, NOAA, and other agencies will leverage the
  operational EDRs in performing climate research
• ADS will archive the IDPS xDRs (RDRs, SDRs, EDRs)
• SDS is intended to be a research tool in support
  of NASAs efforts

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Payload Complement Comparison
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NPP Mission 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 - 10
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NPP In-Situ Ground System (NISGS)

• Meet the derived mission requirements for
  Direct Broadcast
• Provide for a NASA NPP direct readout
  capability, continuing the legacy of
• EOS Terra and Aqua
• Enable access, processing and utility of NPP
  instrument direct
• broadcast data by the direct readout community
• Promotes data sharing, collaboration, regional
  science applications
• Standardization of methods and data formats for
  real-time applications
• NISGS is NPPs mission contribution to the
  IPOs Field Terminal MOA
• NPP In-Situ Front-End System (NISFES)
• NPP In-Situ Data System (NISDS)
• Science Processing Algorithm (SPA)
• SPA wrapper provides for standardized science
  algorithm command
• and execution interface
• Each SPA would function standalone
• Visualization/Analysis tools
• Legacy science algorithms, NPP SDRs and select
  EDRs

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NPP Space Segment Overview
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Space Segment
GPS
TDRSS
Space Segment
NPP
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
Launch SupportSegment
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 - 13
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Space Segment Elements

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

CERES recently added to NPP mission
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NPP Space Segment Key Requirements

• Orbit 824 km, sun-synch (i98.7 deg), 130 pm
  Ascending Node
• S-band Command and Telemetry
• Ground (Svalbard)
• Uplink 2 128 kbps
• Downlink 1, 4, 16, 32 kbps real-time TLM
• 512 kbps playback TLM
• TDRSS
• Uplink 0.125 1 kbps
• Downlink 1, 4, 16 kbps real-time TLM
• Uplink encryption
• Caribou
• X-band 300 Mbps Stored Mission Data (SMD)
  downlink
• SSR has SMD storage capacity for 3.5 orbits (343
  Gbit)
• Simultaneous playback while recording SMD
• X-band 15 Mbps High Rate Data (HRD) direct
  broadcast of mission data

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NPP Space Segment Key Requirements

• Support 5 instrument payload suite
• ATMS, CERES, OMPS (1553 data interface)
• CrIS VIIRS (1394 data interface)
• Support instrument power, mass and FOV
  requirements
• Provide required discrete command and telemetry
  interfaces
• (pulse commands, TOD pulse, thermistors, bilevel
  status)
• Controlled Reentry
• Enhanced propulsion module (320 kg propellant)
• 2 sets of 4 thrusters (pri/red sets)
• MELV launch vehicle compatible
• Boeing Delta-II (7920-10 configuration)
• 4-point launch vehicle interface (6915 PAF)

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Visible/Infrared Imager/Radiometer Suite (VIIRS)

• Multispectral, cross-track-scanning, imaging
  instrument
• 22 spectral bands 0.4 12.5 mm
• Single 20 cm diameter, rotating, all-reflective
  telescope
• Day-Night Band, VisNIR, S/MWIR, LWIR Focal
  Plane Assemblies
• Solar reflective and IR emissive on-board
  calibration sources
• Heritage MODIS on EOS Terra and Aqua

z
z
85 cm
y
y
141 cm
134 cm
x
x
Margins
Colorado, March 20, 2003 MODIS - Terra
Colorado, March 13, 2003 MODIS - Terra
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Cross-track Infrared Sounder (CrIS)

• Fourier Transform Spectrometer providing high
  resolution IR spectra
• Fields of Regard each 3 x 3 FOVs
• 14 km nadir spatial resolution
• 2200 km swath width
• On-board internal calibration target
• Heritage AIRS on EOS Aqua

z
y
72 cm
95 cm
x
80 cm
Margins
Hurricane Isabel, September 18, 2003 AIRS - Aqua
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Advanced Technology Microwave Sounder (ATMS)

• Develop and build EDU and PFM radiometers with 22
  channels (23 to 183 GHz)
• Heritage AMSU-A1, AMSU-A2, MHS

z
60 cm
y
70 cm
x
40 cm
Margins
Hurricane Isabel, September 18, 2003 AIRS/AMSU -
Aqua
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Ozone Mapping Profiler Suite (OMPS)

• OMPS consists of three spectrometers
• Nadir Total Column Spectrometer based on TOMS
  heritage, covers a 2800km cross-track swath
• Nadir Profile Spectrometer provides heritage
  SBUV/2 performance over (250km)2 cell
• Limb Sensor provides 1 km vertical sampling along
  3 slits enabling ozone profile retrieval
• Heritage TOMS and SBUV

z
z
x
35 cm
37 cm
x
66 cm
54 cm
y
25 cm
56 cm
y
Main Electronics Box
Nadir Sensor
Limb Sensor
Margins
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Clouds and the Earths Radiant Energy System
(CERES)

• CERES scanning radiometer measuring three
  spectral bands at TOA
• Total (0.3 to gt50 ?m)
• Shortwave (0.3 to 5.0 ?m)
• Longwave Bandpass (8 to 12 ?m)
• Operations, Data Processing, Products, and
  Science are a continuation of experience
  developed on
• TRMM (1) EOS Terra (2), EOS Aqua (2)

Margins
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NPP Satellite - Nadir Deck View

• Nadir facing antennas
• TC
• HRD
• SMD

• Instruments lined up along cold facing panel

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
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NPPProp. Module Integration
NPP into chamber for OTT
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NPP Satellite - 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
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NPP Programmatics
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Nature of Program

• Peer-to-Peer Partnership
• NASA / IPO / NOAA
• Shared Risk
• Agency-centric vulnerabilities
• Shared Control
• Joint Project Management
• Joint award fee representation
• Joint Oversight
• Tri-Agency (NOAA, NASA and DoD) Steering
  Committee
• Executive Committee (EXCOM)
• No Exchange of Funds
• Each partner will contribute mission components
  in-kind

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Mission Review History (1)

• Mission System Requirements Review (MSRR) 3/00
• ATMS Preliminary Design Review (PDR) 7/00
• SDS System Requirements Review (SRR) 2/01
• VIIRS Critical Design Review (CDR) 3/01
• Spacecraft Preliminary Design Review (PDR) 1/02
• ATMS Critical Design Review (CDR) 5/02
• Spacecraft Baseline Design Review (BDR) 12/02
• Independent Mission Preliminary Design Review
  (IMPDR) 1/03
• OMPS Critical Design Review (CDR) 3/03
• Spacecraft Critical Design Review (CDR) 6/03
• CrIS Critical Design Review (CDR) 8/03
• Mission Critical Design Review (MCDR) 10/03
• Pre-Mission Operations Review (Pre-MOR) 8/05
• ATMS PFM Pre-Ship Review (PSR) 9/05

Reviews conducted by standing independent review
teams
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Mission Review History (2)

• Post Risk Reduction Phase Hardware Review (L-26m)
• CrIS FU1 Pre-Ship Review (PSR) 5/08
• OMPS FU1 Pre-Ship Review (PSR) 8/08
• Mission Operations Review (MOR) (L-18m)
• Mission Test Readiness Review (MTRR) (L-13m)
• VIIRS FU1 Pre-Ship Review (PSR) 3/10
• Satellite Pre-Environmental Review (PER) (L-10m)
• Operational Readiness Review (ORR) (L-5m)
• Satellite Pre-ship Review (SPSR) (L-3m)
• Mission Readiness Review (MRR) (L-2m)
• Flight Readiness Review (FRR) (L-1/2w)
• Launch Readiness Review (LRR) (L-1/2d)
• Operations Hand-over Review (OHR) (L3m)
• Mission Transfer Review (MTR) (L6m)

Reviews conducted by standing independent review
teams
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NPOESS Preparatory Project (NPP) Level 1 Joint
Master Schedule
Source Data NPP Schedule to Launch 2/5/08 IPO
Input as of 2/11/08
STATUS AS OF 2/11/08