# Presentation: 199147

## NPOESS Preparatory Project (NPP) presentation to theCommittee on Earth Studies

** ****D S DeVito NASA/GSFC**
**February 7, 2000**

## Agenda

**Mission Overview****	****	****	****	****Daniel DeVito**
**Science****	****	****	****	****	****Robert Murphy**
**Interface Data Processing Segment ****	****	****Reggie Lawrence**
**Science Data Processing Segment****	****	****Joy Henegar**
**Direct Broadcast User System****	****	****	****Joy Henegar**
**Archive and Distribution Segment****	****	****Michael Crowe**

## Provide NASA with continuation of global change parameters after Terra and Aqua
atmospheric temperature and humidity sounding, sea surface temperature, land and ocean biological productivity, and cloud and aerosol properties 
Provide NPOESS with pre-operational, risk-reduction demonstration and validation for 3 of the 4 critical NPOESS instruments and algorithms, and ground processing
VIIRS, CrIS, ATMS

**Joint NASA/IPO flight of critical imager and sounding systems**

_**Schedule:**_

**1Q FY99**

**1Q FY02**

**1Q FY06**

**FY11**

- Operations

- Formulation

- Implementation

- Approval

- Launch

**Provide NASA with continuation of global change parameters after Terra and Aqua**
- atmospheric temperature and humidity sounding, sea surface temperature, land and ocean biological productivity, and cloud and aerosol properties
**Provide NPOESS with pre-operational, risk-reduction demonstration and validation for 3 of the 4 critical NPOESS instruments and algorithms, and ground processing**
- VIIRS, CrIS, ATMS

- Feas.

***NPP Mission Objectives***

## Mission Concept 

**User Community**

**Cmnd, Cntrl, Comm Segment**

***Manage Mission***
***Manage Satellite Operations***
***  ******- Plan mission events***
***  ******- Build command sequence***
***  ******- Perform Eng and Analysis***
***  ******- Analyze health and safety***
***  ******- Analyze flight dynamics***
***  ******- Maintain satellite database***
***  ******- Prepare & send satellite cmds***
***  ******- Simulate satellite***
***  ******- Maintain flight software***
***Route mission data***

**I/F Data Processing Segment**

***Schedule & manage resources***
***Ingest raw SMD telemetry***
***Process RDRs, SDRs, EDRs***
***Validate data records***
***Perform operations calibration proc***
***Provide data records to ADS & SDS***

**Archive & Dist Segment**

***Ingest & validate data records***
***Manage archive***
***Interface with users***
***Generate user products***
***Track user orders***
***Generate accounting reports***

**Science Data Segment**

***Schedule & manage resources***
***Ingest and validate RDRs***
***Process/Reprocess RDRs to Level 1B***
***Generate science data products***
***Perform science calibration proc***
***Provide science products to ADS***
***Calibration/Validation***

**Launch Support Segment**

***Launch vehicle***
***Launch support equipment***
***Real property installation equip***
***Launch facilities***

- Raw  SMD Telemetry

- RDRs, SDRs, EDRs

- RDRs

- Science Products

- RDRs, SDRs, EDRs

**Space Segment**

***Spacecraft***
***  ******- Control satellite***
***  ******- Support data collection***
***  ******- Provide NB communication***
***  ******- Provide WB communication***
***  ******- Thermal and electrical power***
***  ******- Provide failsafe protection***
***VIIRS***
***CrIS***
***ATMS***
***IOO (TBR)***
***Provide test support***

***VIIRS***
***CrIS***

***IOO (TBR)***

**NASA**
**IPO**
**NOAA**
**TBD**

## Mission Concept (cont.)

_**Accommodate Instruments:**_
- Visible Infrared Imaging Radiometer Suite (VIIRS)
- Cross-track Infrared Sounder (CrIS)
- Advanced Technology Microwave Sounder (ATMS)
_**Launch Readiness:**_**  12 / 2005**
_**Duration:**_**  5 years (consumables for 7.5 years, instruments designed for 7 year on-orbit life with 7 year shelf life)**
_**Orbit:**_**  833 +/- 17 km polar sun-synchronous, 10:30 a.m. +/- 10 minute nodal crossing time, descending**
_**Ground Track Repeat:**_**  +/- 20 km, repeat cycle less than 20 days**
_**Pixel Geo-location Knowledge:**_**  200m, 3 sigma, at nadir (post-processed)**
_**Calibration Maneuver:**_**  Attitude slew for deep space and lunar views by VIIRS**
_**Stored Mission Data Return**_**:  Direct-to-ground to polar ground stations**
_**High Rate Data Broadcast:**_**  Real-time X-band direct broadcast of all instrument data**
_**Operational Data Handling**_**:  Environmental Data Record (EDR) delivery within 3 hours of acquisition to Centrals (goal)**
_**Science Processing**_**:   Provide science product processing and reprocessing**
_**Archive and Distribution**_**:  Long term access of products to the climate / global change community**

## NPP as a “Bridging Mission”

- Nodal Crossing Times

**NPP**

## Visible Infrared Imaging Radiometer Suite (VIIRS)

- Notes:  Above allocations are envelopes.  Resource allocations used in Feasibility Study will be updated based upon technical characteristics of down-selected instrument.

_**Purpose:**_**  Global observations of land, ocean, and atmosphere parameters at high temporal resolution (~ daily)**
_**Status:**_**  IPO procurement, Phase B (ITT and Raytheon) with Phase C/D down-select in September ‘00**
_**NPP Delivery:**_**  Assumed 9/1/04.**
_**Approach:**_**  Multispectral (visible through long-wave thermal ) scanning radiometer**
_**Swath width:**_**  3000 km**
_**Predecessor Instruments:**_**  AVHRR, OLS, MODIS, Seawifs**

_**NPOES Weight Allocation:**_**  200 kg**
_**NPOES Power Allocation:**_**  300 W orbital average **
_**NPOES Data Rate Allocation:**_**  8 Mbps orbital average, 10.5 Mbps peak (compressed) (CCSDS packetized)**
_**NPOES Volume Allocation:**_**  65 x 129 x 138 cm (nadir x velocity x anti-solar)**
_**NPP Spacecraft Contingency:**_**  30kg, 45 W orbital average**
_**Interface:**_**  Assume 3-point kinematic mount, single high-rate data interface**

## Cross-track Infrared Sounder (CrIS)

_**Purpose:**_**  In conjunction with ATMS, global observations of temperature and moisture profiles at high temporal resolution (~ daily).**
_**Status:**_**  IPO procurement, Down-Select to ITT completed Oct ’99.**
_**NPP Delivery**_**:  Assume 4/1/04.**
_**Approach:**_**  Michelson interferometer sounder covering 3.5 to 16 um**
_**Swath width:**_**  2200 km**
_**Predecessor Instruments:**_**  HIRS, AIRS, IASI**

_**NPOESS Weight Allocation:**_**  81 kg**
_**NPOESS Power Allocation:**_**  91 W orbital average **
_**NPOESS Data Rate Allocation:**_**  1.5 Mbps orbital average, 1.5 Mbps peak (compressed) (CCSDS packetized)**
_**NPOESS Volume Allocation:**_**  40 x 61 x 40 (nadir x velocity x anti-solar) **
_**NPP Spacecraft Contingency:**_**  10 kg, 12 W orbital average**
_**Co-registration:**_**  with ATMS**
_**Interface:**_**  Assume 3-point kinematic mount, single high-rate data interface**

## Advanced Technology Microwave Sounder (ATMS)

- Notes:  Above allocations are envelopes.  Mass, power, and volume are based on ATMS Feasibility Study baseline configuration.

_**Purpose:**_**  In conjunction with CrIS, global observations of temperature and moisture profiles at high temporal resolution (~ daily).**
_**Status:**_**  NASA procurement, Formulation Phase contracts awarded Nov ’99 to Aerojet and Ball. **
_**NPP Delivery:**_**  Assumed 9/29/04.**
_**Approach:**_**  Scanning passive microwave total power radiometer**
_**Swath width:**_**  2300 km**
_**Predecessor Instruments:**_**  AMSU A1 / A2, MHS**

_**NPOESS Weight Allocation:**_**  66 kg**
_**NPOESS Power Allocation:**_**  85 W orbital average **
_**NPOESS Data Rate Allocation:**_**  0.05 Mbps orbital average, 0.05 Mbps peak (CCSDS packetized)**
_**NPOESS Volume Allocation:**_**  60 x 70 x 40 (nadir x velocity x anti-solar) **
_**NPP Spacecraft Contingency:**_**  10 kg, 13 W orbital average**
_**Co-registration:**_**  with CrIS**
_**Interface:**_**  Assume 3-point kinematic mount, single data interface**

**Notes:**
Chart 1

ATMS requirements and technical overview for each option.  Status of agreements with regard to the requirements (i.e., IPO and NASA).

Chart 2

Cost estimate basis and result for each option with the following information:

Development + first unit total cost in $FY99 (broken into Phase A/B (so-called Formulation) and Phase C/D (so-called Implementation)), and RY run-out and profile (for the same break-out)).  The break-out is because HQ increasingly is desiring to show Implementation-phase $ as the cost of missions.

Procurement and development key milestones.

Chart 3 (back-up)

Comparitive analysis of current ATMS requirements and cost versus the final IMAS work (i.e., Vicki’s report).  This is essential because those are the last numbers HQ officially was given, and we need to have the basis for any differences.

## Integrated Formulation Team

**IPO***
- Joint program management responsibilities with NASA
- VIIRS development and first unit – augmented to meet science requirements
- CrIS development and first unit
- Ground segments
- Stored mission data receive stations, primary and backup command & control, data retrieval and distribution, prototype operational data processing, prototype operational cal/val
- Ground segment integration
- Mission operations (after launch and early orbit checkout by NASA)
**NASA***
- Joint program management responsibilities with IPO
- Mission systems engineering, integration, and test
- Launch vehicle and launch activities
- Spacecraft and space segment integration
- ATMS development and first unit
- Selected ground system capabilities
- Rate buffers for ground stations, science processing/re-processing and science cal/val processing.
- Participate with IPO and NOAA in science level cal/val activities for NPP
**NCDC**
- Long term access to NPP data
- * As described in the NPP Initial Implementation Agreement (signed Dec. ’99)

## Status

- Initial Implementation Plan (IIA) signed Nov. ‘99
- IPO awarded NPOESS Program Definition and Risk Reduction (PDRR) contracts to Lockheed Martin and TRW
- NASA awarded ATMS formulation phase contracts to Ball Aerospace and Aerojet
- Project Formulation Plan in final review by NASA HQ, GSFC and IPO
- Mission System Requirements Review scheduled for March 28-30
- Mission System and Operations Concept available
- Level 2 Requirements available late February
- Initiated work on draft Science Plan and Calibration Plan
- Interim Science Panel meeting held January 18,19
- Integrated Mission Design Center study held in November to analyze key trades

## CES Notional Data Management System

## Mission Requirements Mapping

- Centrals

- IDPS

- SDS

- C3S

- IDPS

- SDS

- ADS

## Transition of Systematic Measurements(EOS NPP  NPOESS)

- Measurements:
- Instruments:
- Algorithms:
- Processing:
- Archive &
- Distribution:
- Standards:

- NPP Era

- 14/24 EOS Measurements
- VIIRS, CrIS, ATMS
- _EDRs_
- IPO funded; Instrument/TSPR contractor teams with OAT oversight
- _Level 1, selected CDRs_
- NASA funded (via AO process)
- _EDRs_	_CDRs_
- IDPS (IPO)	SDS (NASA)
- Mid Term: NOAA (TBR)
- Long Term: NOAA (TBR)
- IPO/NASA/NOAA led

- NPOESS Era

- 14/24 EOS Measurements
- VIIRS, CrIS, ATMS, TSIM, CERES , CMIS, OMPS, GPSOS
- _EDRs_
- IPO funded; Instrument/TSPR contractor teams with OAT oversight
- _Level 1, selected CDRs_
- TBD
- _EDRs_	_CDRs_
- IDPS (IPO)	TBD
- Mid Term: NOAA (TBR)
- Long Term: NOAA (TBR)
- IPO/NOAA led

- EOS Era

- 24/24 EOS Measurements
- MODIS , AIRS, AMSU , HSB, ACRIM, TSIM, SOLSTICE , CERES, HIRDLS, MLS , AMSR, TOMS, OMI, EOSP, SeaWiFS, ASTER, ETM+
- NASA funded, PI led
- teams
- EOSDIS / PI Processing
- (NASA)
- Mid Term: EOSIDS
- Long Term: NOAA (TBR)
- NASA led

## Points Raised at Previous CES Meeting

**Science Related**
- Programmatic
- Strategy for AO process/ science team selection
- Visibility / insight from broader community
- "What short-term investments can be made to improve the suitability of NPP data for climate research?"
- Science products
- Identification and prioritization
- Continuity with current and future programs
- Science quality vs. EDR (operational) level quality
- Experimental (new) science products
**Data System**
- Roles and responsibilities
- Requirements driven by user scenario
- Timing (mission objectives, implementation schedule)
- System architecture / capabilities
- Processing/reprocessing
- Archive (science production and LTA)
- QC/QA

## Points Raised at Previous CES Meeting (cont.)

**Process for establishing science processing**
- Level 1B processing/reprocessing
- Higher level products (AO process); algorithm development
**Long Term Access**
- Data / metadata / documentation should be archived
- Data accessibility (off-line, near-line, on-line)
- Data migration
- Cost of Fulfilling a User Request (COFUR)
- Architecture – user communities are driver (science and non-science)
- User Profile
**Calibration and Validation**
- Calibration and characterization of each sensor, radiance, algorithm and product
- Operational / science roles and responsibilities
- Use of vicarious cal events / data.

## Key Formulation Milestones (Backup)

- Mission System Requirements Review (MSRR) – March 28-30
- System and Operations Concept
- Level 2 Requirements
- Others
- Mission System Design Review (MSDR) – February 2001
- Architecture Description Document
- Science Plan and Cal/Val Plans
- Segment Concepts and Requirements
- Project Implementation Plan
- Others
- Final Implementation Agreement (FIA) – June 2001
- Mission Preliminary Design Review (MPDR) – December 2001
- Mission Confirmation Review (MCR) – December 2001