# Presentation: 247965

## ICESat Science Investigator-Led Processing System

**MOWG III**
**David Hancock/NASA GSFC**
**Suneel Bhardwaj/Raytheon ITSS**
**January 30, 2002**
**GSFC****Greenbelt, Maryland**

## ICESAT/GLAS SCIENCE SOFTWARE DEVELOPMENT

**Dr. Bob Schutz, GLAS Science Team Leader****Dr. Jay Zwally, ICESat Project Scientist, GLAS Team Member****Mr. David Hancock, Science Software Development Manager****Ms. Anita Brenner, Deputy Science Software Development Manager**
**Mr. Suneel Bhardwaj, I-SIPS Operations Manager**
**Ms. Kristine Barbieri, SCF Operations Manager**

**ICESAT/GLAS ****SCIENCE SOFTWARE DEVELOPMENT**

##  SCIENCE TEAM/SCF FACILITIES 

**University of Texas - Dr. Bob Schutz, Science Team Leader **
**Goddard Space Flight Center /Ice Sheet - Dr. Jay Zwally, GLAS Project Scientist**
**Goddard Space Flight Center/Land - Dr. Jack Bufton**
**Goddard Space Flight Center/Atmosphere - Dr. James Spinhirne**
**Ohio State University - Dr. Robert Thomas**
**University of Washington – Dr. Ben Smith (Dr. Bentley)**
**Massachusetts Institute of Technology - Professor Thomas Herring**
**University of California San Diego - Professor Jean-Bernard Minster**

## I-SIPS BASIC DESCRIPTION

_**Performs**_**:**
**The I-SIPS processing performs the following functions:**
**ingest input data – level 0 and ancillary data**
**execute algorithms to create the GLAS level 1 and 2 data products and one level 3 product**
**assess data product for quality and content, and produce metadata**
**create browse products**
**create processing reports/log**
**deliver products to the GLAS SCF for science team distribution**
**deliver data products to the NSIDC DAAC**
**Perform reprocessing as required**
**Create quick-look data for science team**
**Receive Level 3 and 4 GLAS special data products produced by the science team**

## I-SIPS PROCESSING BASIC REQUIREMENTS

**Process 24 hours of GLAS instrument data into standard data products within 4 hours of receipt of all required inputs**
**Ability***** *****to***** *****distribute to the GLAS SCF Level 1 and Level 2 data products within 24 hours of receipt of Level 0 data (uses predict ancillary data) upon science team request**
**Distribute fully processed Level 1 and Level 2 data products to NSIDC within 14 days of receipt of Level 0 data and other required input data (after becoming operational and assuming proper ESDIS funding) **
**Support reprocessing requirements without delaying regular processing assuming proper funding**

## I-SIPS INTERFACES

## DOCUMENTShttp://glas.wff.nasa.gov

**	****I-SIPS  Master Documents*** ****Science Software Management Plan******Science Software Data Management Plan******Science Software Requirements Document******GSAS Software Architectural Design Document******GSAS Software Detailed Design Document******GLAS Standard Data Products Specification******I-SIPS(GSAS and SDMS) Software User's Guide/Operational Procedures Manual***

**DOCUMENTS****http://glas.wff.nasa.gov**

## ICESat SCF FUNCTIONS

**Receive standard data products from I-SIPS**
**Distribute selected standard data products or subsets of the same to Science Team (ST)**
**Provide ST with selective visualization and data selection capability **
**Provide science analysis tools**
**Provide product QA**
**Calculate and provide precision orbit and attitude information to I-SIPS**

## I-SIPS TYPICAL DAY MAIN EVENTS

**Ingest 4 sets of PDS **
**Produce Level 1A Products for current data**
**Ingest POD/PAD for day N**
**Produce Level 1B & 2 products for day N**
**Distribute created products to SCF**
**Create HDF products**
**Distribute QA’d products to NSIDC**
**Reprocess data based on updates(POD/PAD or Algorithm**

## OPERATIONS

**Autonomous Operation 7 days/week, 24 hours**
**Normal Manned Operation is 5 days/week, 12 hours**
**Available on-call.**
**Provide initial calibration period support as required**

## SOFTWARE MAINTENANCE

**Science Team**
**Submits written requests for  Science Algorithm changes to CCB**
**Modifies ATBDs to include all CCB accepted algorithm changes**
**Develops and tests new GLAS Science Algorithm Software modules in accordance with the ATBDs**
**Delivers  GLAS Science Algorithm Software (GSAS) to I-SIPS**
**I-SIPS (GSAS)**
**Receives GSAS software from the Science Team; installs and tests each new delivery**
**Installs new delivery into production system after CCB approval **
**Maintains history of software releases used in GLAS data product production**
**Delivers new s/w package to NSIDC for archive**
**I-SIPS (Schedule Data Management System (SDMS))**
**Submits written requests for SDMS modifications to CCB**
**Develops, installs, and tests new SDMS software**
**Maintains history of software release used in production mode**
**Gets CCB approval before using new release in production**

## DATA INGEST

**EDOS - Level 0 (PDS,EDS)**
**NSIDC- Meteorological Data**
**NSIDC - Level 0 by request**
**UTGLAS - POD/PAD (Orbit and attitude)**
**ICESat SCF - QA, Special Products**
**ISF- Time tag table, calibrations, event history**

## DATA DISTRIBUTION

**NSIDC - Standard and Special Data Products**
**UTGLAS - GPS/SRS**
**ICESat SCF - Standard Data Products,QA**
**ISF- Level 0 and 1 Products, QA**

## DAILY DATA VOLUME

**Ingest – 17.6 Gbytes**
**Distribute – 38.5 Gbytes**

## I-SIPS FACILITY CONFIGURATION

- Processing
- Server
- 1

- Processing
- Server 2
- (To be procured
-  in FY02)

- Database
- Server 2

- Database
- Server 1

- 30 TB
- Tape
- Library
- Archive 1

- 30 TB
- Tape
- Library
- Archive 2

- 1TB Fibre-Channel
- Disk Array
- Shared Access
- Data Server/
- Archer Cache

- LVD SCSI
- RAID DB
- Storage

- 1 TB Tape
- Library for
- Backups

- Instrument
- Support
- Facility (ISF)

- OperatorConsole

- OperatorConsole

- Gigabit Ethernet

- LVD SCSI
- RAID DB
- Storage

**Networked File Systems**

## I-SIPS STATUS

**Hardware**
**Database Storage (RAID) (2)**
**RAIDInc and Nstor 360GB LVD SCSI**
**Database Servers (2)**
**HP L2000 with (2) PA-8600 550MHz CPUs**
**2 GB RAM**
**Archive Tape Libraries (2)**
**StorageTek L700  690 slot, 1-20 drives, 27TB w/DLT 8000**
**Processing Servers (2)**
**HP N4000 with (4) PA-8600 550MHz CPUs **
**4GB RAM**
**Uninterruptible Power Supply (UPS)**

## I-SIPS STATUS

**All hardware currently procured and in place with the exception of processing server 2.**
**Processing server 2 will be procured and in place 6 months prior to launch.**
**SDMS**
**Software version 2.2**
**Tested data ingest, archival, and transfer to all participating sites during MOSS-5 test**
**Participated in MOSS-6 test, where above functionality was tested along with invoking of GSAS software**

## I-SIPS STATUS (cont.)

**GSAS**
**Software version 2.1**
**Successfully tested Science Team ATBD implementation using 25 hours of data**
**Participated in MOSS-6 test, to produce all Level 1 and 2 products (except for GLA03, GLA04, and GLA16)**

## I-SIPS STAFFING

**Operations Manager (1)**
** ****Suneel Bhardwaj****	**
**Database Administrator (1)**
**Michelle Johnson**
**Systems Administrator (1)****	**
**John Shepherd**
**SDMS Software Maintenance (1)**
**John Bay**
**Operators/QA Personnel (3)**
**To be filled starting Spring 2002**

## TRAINING

**Training procedure, methodology, and manuals currently being developed**

## CONFIGURATION MANAGEMENT

**GSAS software is under a commercial CM system (Clearcase)**
**SDMS software is under Revision Control System (RCS)**
**A Configuration Control Board (CCB) has been set up to approve any changes or fixes in software**

## SCHEDULE

**I-SIPS S/W CDR - Nov 1999**
**I-SIPS Version 1 S/W - July 2000**
**I-SIPS Facility Space available - Sept 2000**
**I-SIPS Version 1 S/W - Nov 2000 **
**I-SIPS H/W Installation (except Processing System 2)- Spring 2001**
**I-SIPS Version 2 S/W - Nov 2001**
**I-SIPS H/W Installation (Final) - June 2002 **
**I-SIPS Version 3 S/W - Aug 2002**
**I-SIPS and SCF ready for launch - Sept 2002**

## CONCERNS

**Consistency of EDOS data transfers**
**Visibility of EDOS available data**
**Speed of network connections between NASCOM and CNE**
**Factors out of our control (loss of power, cooling unit not working, status of network between building 22 and all other players)**

## ADDITIONAL INFORMATION

## INTERFACE REQUIREMENTS

**EDOS**
**PDS - Nominal three hours after available pass, Req 24 hours**
**EDS - Three hours after pass**
**Special request EDS -Three hours after pass**

## INTERFACE REQUIREMENTS (cont.)

**NSIDC**
**Standard Products - I-SIPS provides 14 days after receiving POD/PAD and QA**
**Special Products - I-SIPS provides 4 days after receipt**
**Reprocessed Data- I-SIPS provides after QA**
**Level 0 - NSIDC provides on request**

## INTERFACE REQUIREMENTS (cont.)

**UTGLAS**
**Per PDS period I-SIPS provides GPS,SRS, and selected S/C data within two hours of receiving**
**UTGLAS provides I-SIPS POD/PAD daily**
**UTGLAS provides I-SIPS Predict orbit daily**

##  ISF INTERFACE REQUIREMENTS (cont.)

**ISF **
**On request, I-SIPS provides immediate access to PDS, EDS, and S-Band after receiving it**
**I-SIPS provides summary data for trend analyses**
**ISF provides Event History log**
**ISF provides S-band data from MOC as required**

##  ISF INTERFACE REQUIREMENTS (cont.)

**SCF**
**ISIPS provides GLAS standard data products – level 1 and 2**
**ISIPS provides GLAS browse products**
**ISIPS provides Ancillary data by request**
**SCF sends Science QA flags to ISIPS**