# Presentation: 852409

##  NASA Resources for Algorithm Test and Evaluation:What NASA can do for you. 

** ****NASA Resources for Algorithm Test and Evaluation:****What NASA can do for you. **

**Pete Kealy**
**Nov 4-6, 2003 **

## Section Overview

**	****Outline the assets available to the NPP Science Team to help in the NRA tasks (Algorithm Analysis, Opscon, Cal/val and sensor/algorithm advice)**
**What documentation and S/W is available?**
** ****Opscons, ATBDs, architectures, Detailed Design Documents, S/W versions, Test Data Sets, System Verification Reports, etc**
**When are these available and updated?**
**Significant ATBD, characterization, calibration and verification milestones for the NPP Science team over the next 3 years until launch**
**How can NASA technology insertion occur?**
**NASA-GSFC NPP assets**
**NPP1: NASA’s computing facility for NPP**
**NEXT: NPOESS data EXchange **
**NGST assets**
**Integrated Weather Products Test Bed (IWPTB) Test Data Sets (TDS) **

## Operations Concepts Relevant to the NPP Science Team

- NPP Calibration Maneuvers

- LTM: how the LTM facility works for Climate Data Record support

- ASC: how changes can be made to the operational algorithms

- How the system handles sensor degradation or loss of ancillary data

- ISF: Satellite, sensor and algorithm maintenance

- Status as of 24OCT03

## VIIRS Algorithm Documentation Tree

**System**
**Specification**

**Sensor**
**Specification**

**Module**
**S/W Architecture**
**RDR to SDR**

**Module level**
**ICD**

**Data**
**Dictionary**

**Unit Detailed **
**Design Unit 1**

**Unit Detailed **
**Design Unit N**

**Context**
**S/W Architecture**

**ATBD**

**ATBD**

**ATBD**

**ATBD**

**ATBD**

**Module**
**S/W Architecture**
**Temperature**

**Module**
**S/W Architecture**
**Land**

**Module**
**S/W Architecture**
**LUTs**

**VIIRS**
**ICD**

****

## CRiS ATBDs Include ATMS Processing

**SDRs**

**Extensively documented through the Algorithm Theoretical Basis Document (ATBD) and Science Code Document (SCD).**
**Complete explanation of theoretical basis**
**Full description of algorithm and all subroutines**
**Tutorial on Algorithm operation and modes**
**Examples of algorithm operation and results**
**ATMS calibrated radiances ATBD supplied by ATMS team**

## OMPS ATBDs

**Each OMPS ATBD contains top level SDR (level 1b) information**
**Additional SDR information found in engineering documents:**
**SER: IN0092CCD-007A**

## Algorithm Delivery Schedules

**ATBDs and associated research grade code are delivered at or around the sensor Critical Design Review (CDR) milestone**
**VIIRS March 02**
**CRiS August 03**
**OMPS March 03**
**“****CDR-level” deliveries mark handover to NGST System Engineering function**
**VIIRS October 02**
**CRiS October 03**
**OMPS October 03**
**ATMS SDR December 03**
**Further updates are scheduled as required under NGST leadership**
**Detailed ATBD delivery schedules are available to the NPP Science Team**
**Research grade code delivered for operational conversion**
**Documentation and S/W hosted on NEXT system**

## NPP/NPOESS Integrated Schedule

## Pre-Launch Characterization and Algorithm Verification Flow Defined

## NPP Science Algorithm Drop Schedule(Proposed New Drop Dates)

## NASA Technology Insertion

**Algorithm related technology insertion occurs as part of the NPP Science team participation in the development program**
**As maturity increases greater use of the Algorithm Support Capability (ASC) within the operational processing environment**

**OATs**

**IPTs**

**SSPR**

**NASA PSG**

**NST**

**IPO**

## NASA and NGST Assets

**NPP1 **
**Outline capabilities of NPP1**
**Invite NPP Science Team (NST) feedback on their anticipated use of NPP1**
**NPP data Exchange Toolkit**
**Northrop Grumman Space Technology Integrated Weather Products Test Bed Test Data Sets (NGST’s IWPTB TDS) inventory for potential re-use by NPP Science Team.**

**NASA hopes to maximize the NST’s use of NPP1 **
**and re-use of NGST derived TDS**

## Purposes of the NPP1 System

** **
**To provide NST a Test Data Set (TDS) repository**
**Leveraging NGST’s NPOESS  Integrated Weather Test Bed (IWPTB) Database**
**Hosting common TDS created and used by several team members**
**To provide some necessary toolkits, such as orbit simulation, subsetting, reprojection, and visualization tools, etc.**
**To provide NPP science S/W and related documents (in coordination with the NEXT system)**
**To provide NPP science team a platform to test the scientific algorithms and data systems **
**Capability to make comparisons to MODIS processing**

## Description of NPP1 System

**  ****1 SGI Origin 3200, 8 R12K cpu, 4GB memory**
**16 SGI 1100 dual processors (700Mhz P3) **
**10 RAIDKing (80GB*6+P+S), 480GB each**
**6 RAIDKings attached by Fibre Channel bridges **
**NPP to add 1 more Fibre Channel bridge to attach 3 more RAIDKings**
**1 RAIDKing chassis kept as a spare**
**Sybase software – need to install before setting up a production instance of MODAPS**

## NPP System Infrastructure

**NPP System Infrastructure**

## How the System is Configured

**System was originally purchased to be used like MODAPS in running large tests**
**In a typical MODAPS configuration,  we’d have 1 SGI 1100 running the database, the SGI 3200 handling all PGEs (primarily Level 3 products) and the other SGI 1100s used in production for Level 2 through Daily PGEs**
**The system can be re-configured to best serve the NPP Science Team needs**

## Questions for NPP Science Team

**Computing requirements **
**Will you be an NPP1 user? **
**Processing**
**Storage**
**Software and Radiative Transfer Models**
**Toolkits**
**Volume (estimate data usage through NPP1)**
**Sources of data to be used in your project**
**Already in existence**
**To be bought**
**To be generated (synthetic simulated data)**
**Assumed provided by NASA**
**Use of NPOESS Test Data Sets (Northrop Grumman supplied)**
**Core TDS that can be shared within NPP Science Team**
**Future NPP1 requirements**
**What would make NPP1 more useful for your project?**

## NPOESS Preparatory Project (NPP)data EXchange Toolkit (NEXT)

**The NEXT serves as the NPP pre-fight repository of Government held data for distribution to the NPP Government user teams (NASA, NOAA/NESDIS, AFWA)**
**Supports the pre-launch scientific characterization and calibration for the ATMS, CrIS, VIIRS, and OMPS Engineering Development Units (EDUs) and Flight Units**
**Serves as a repository for NPP instrument algorithms (SDRs, EDRs) and support files (ancillary data, LUTs, etc.)**
**Provides the ability to receive, catalog, store and distribute data and algorithms to authorized users**
**The NEXT system is under development and the information provided here represents our current plans and status**

## NEXT Overview

**Sensor Vendors**

- Gov’t
- User
- Teams

**Sensor Test Data Sets****1**

- NGST

**Verified Algorithms**
**“****Quicklook” Algorithms**
**Algo. Test Data**
**Supporting Data**
**     ****-  Ancillary, LUTs, ...**

**Apple Xserves**

**npp-next.aero.org**
**El Segundo**

**GSFC**

**DSS**

**(ftp or Physical Media)**

**(ftp or Physical Media)**

**(ftp or Physical Media)**

**(ftp)**

**(1)  Sensor Test Data Sets == Sensor Test Data, **
**Sensor Test Metadata, and Documentation (Electronic)**

**Algorithms, etc.**

**(ftp)**

**Sensor Test Data Sets****1**

**Sensor Test Data Sets****1**

**Sensor Test Data Sets****1**
**(ftp)**

**Subscription and **
**Ad Hoc Requests**

**Electronic or Physical Media**
**    **** ****- DVD, CD, or 4mm tape**

**Electronic Only**

## Access Privileges 

**Users are assigned to one or more of the following groups by the NASA/IPO Gatekeepers**
**Algorithms**
**ATMS**
**CrIS**
**OMPS**
**VIIRS**
**Users will not have access to data outside of their assigned groups**

## Current Contents

**Test data:**
**CrIS EDU2 Test Data**
**Feb and Mar 2003**
**Algorithms**
**NGST Drops**
**Verified**
**1.0, 2.1, 2.2, 2.3**
**Quicklook**
**OMPS**
**Jun 2003**
**VIIRS**
**Mar 2003****	**

## New User Account Access	

**Accounts must be approved by both Aerospace and one of the sponsoring organizations (IPO or NASA)**
**Users must complete two forms, one for IPO or NASA and one for Aerospace**
**New User Account forms can be obtained from the gatekeepers**
**The gatekeepers for IPO and NASA are:**
**NASA POC**
**Bruce Guenther (Code 920)**
**Ph:  301-614-6856**
**Email:  Bruce.W.Guenther.1@gsfc.nasa.gov**
**IPO POC**
**Narinder Chauhan**
**Ph: 301-713-4759**
**Email:  Narinder.Chauhan@noaa.gov**

## Integrated Weather Products Test Bed (IWPTB) Test Data Sets (TDS) Inventory

**Merit Shoucri has full inventory of TDS available from NGST**
**How these TDS were developed is described briefly in Merit’s section**

- Summary of TDS
- Inventory here

## Section Summary

**Centralized capabilities exist for use by NST**
**NPP1 computing facility at GSFC**
**NEXT algorithm and characterization host**
**Test Data Sets from NGST, common TDS from NST members**
**Testing shared TDS will facilitate comparison within the NST and with our industry partners**
**NASA encourages the use of NPP1, NEXT and shared TDS**
**Very large amount of documentation and software is available**
**Project Science Group will try to provide enough but not too much of it**
**NPP Algorithm Implementation Team solicit your feedback on your potential or planned use of these assets**