# Presentation: 129190

## MONTHLY STATUS REVIEW 

**MONTHLY STATUS REVIEW**** **
**EOS ICE, CLOUD & LAND ELEVATION**
** ****SATELLITE (ICESat) PROJECT**
**Code 425**
**UPN 227-6**
**   ****	****   ****Project Scientist:                          Dr. J. Zwally**** ****/**** ****971**
**	****   ****Project Manager:                          James Watzin**** ****/**** ****425**
**	****   ****DPM**** ****/**** ****Resources:                          Linda Greenslade**** ****/**** ****425**
**	****   ****Instrument Development:            Ron Follas**** ****/**** ****556**
**	****   ****Instrument Scientist:****	****	****       Dr. J. Abshire**** ****/**** ****924**
**	****   ****Ground System Development:    ESDIS**** ****/**** ****423**
**	****   ****Spacecraft Contractor:                 Ball**

**NOVEMBER 13, 2002**

## ICESat PROJECT SUMMARY

**G**
**G**
**G**
**G**

**G**

**R**

**Y**

**G**

**G**

**G**
**G**
**G**
**G**
**G**
**G**

**ICESat PROJECT SUMMARY**
**STATUS AS OF: 10/31/02**

_**LEGEND**_

**Good Shape**

**Minor Problem**

**Major Problem**

**Program Management**

**Subcontracts**

**Spacecraft I&T**

**Observatory I&T**

**Subsystems**

** ****Systems Engineering**

**R&D Budget**

**Procurement**

**Workforce**

**Travel**

**Launch Vehicle**

**Launch Site (VAFB)**

**Ground SYS**** ****/**** ****OPS (EOS)**

**GLAS**

**Technical         Cost          Schedule     Management        Overall**

** ****AUG   SEP   OCT**

**Spacecraft Bus:**

**Prime**

**Major Interfaces**

**Resources**

**Instruments**

**Business**

**Science**** ****/**** ****Operations**

**Summary Assessment**

**JPL GPS Receivers**

**GLAS**

**   ****AUG   SEP   OCT**

**    ****AUG  SEP  OCT**

**AUG   SEP    OCT**

** ****AUG    SEP    OCT**

** ****AUG  SEP   OCT**

**G**
**G**
**G**
**G**

**G**
**G**
**G**
**G**

**G**
**G**
**G**
**G**

**G**
**G**
**G**
**G**

**G**
**G**
**G**
**Y**

**G**

**G**

**G**

**G**

**G**
**G**
**G**
**G**
**G**
**G**

**G**
**G**
**G**
**G**
**G**
**G**

**G**

**Y**

**G**

**G**

**G**

**G**

**G**
**G**
**G**
**G**

**G**
**G**
**G**
**G**

**G**
**G**
**G**
**G**

## ICESat SIGNIFICANT PROGRESS

**ICESat SIGNIFICANT PROGRESS**

**ICESat Project****	****STATUS AS OF:10/31/02**

** **

**Observatory shipped to VAFB on October 22.  Post - ship testing is complete.**
**LRD delayed to no earlier than 12/19/02.**
**Operations rehearsals continuing.**

## IT SECURITY: NAC STATUS					STATUS AS OF: 10/31/02

## PROJECT RESERVES

**PROJECT RESERVES**

**ICESat Project****	****STATUS AS OF: 10/31/02**

**Cost:           ****	****Unliened**** ****/**** ****unencumbered reserves    =****	****    16.3%**
**                     ****in Cost-to-Complete****	****	****	****	**
**	****	****	****	****	**
**Schedule:****	**_**(Unscheduled Months)**_**	****=****	****0.05%**
**	**** ****Year until Launch ****	**
**	****	****	**
**Mass:****	**_**(Allocated-Estimated)%**_**	****=****	**_**1050 – 981**_**	****=****	****6.6%**
**	****Allowed****	****	****1050**
**Power:****	**_**(Allocated-Estimated)%**_**	****=****	**_**792 – 668**_**	****=****	**** 15.7%**
**	****Allocated****	****	****792**

## Slide 6

## ICESat SCHEDULE SLACK

**84**
** ****56**
** ****28**
** ****0**

**D**
**A**
**Y**
**S**

**ICESat SCHEDULE SLACK**

**ICESat Project****	****STATUS AS OF: 10/31/02**

**Mar       Apr      May      Jun      Jul      Aug      Sept      Oct      Nov      Dec 02**
**	****	****	****	****	****	****	****          ****LRD**

**Replan to 12/02 LRD**

**5 DAYS OF SLACK**
**FOR 12/19/02 LRD**

**ACCEPTED CODE M**
**REQUEST TO ADVANCE**
**LAUNCH 12/15/02**

## BACKUP

**ICESat**

## ICE, CLOUD, AND LAND ELEVATION SATELLITE

**ICE, CLOUD, AND LAND ELEVATION SATELLITE**
**(ICESat)**

_**Project Management**_**:****	****	****GSFC/Code 425**
_**Spacecraft**_**:****	****	****Ball Aerospace**
_**GLAS Instrument**_**:****	****	****In-House GSFC**
_**Ground System**_**:****	****	**
**        ****Control Center:****	****	****University of Colorado/LASP**
**        ****Ground Data Handling:****	****                   EOSDIS**
**        ****Science Data Processing: ****	****                   GSFC/Science Computing Facility**
**        ****Data Repository:****	****	****NSIDC**
_**Science Team**_**:****	****	****GSFC, UTX/Austin, UCA/San Diego, UWI/Madison, MIT, and ****	****	****EG&G                        **
_**Development Period**_**:****	****	****2/98 – 12/02**
_**Launch Readiness Date**_**:****	****                   12/19/02**
_**Launch Vehicle**_**: ****	****	****Boeing/Delta 7320, with DPAF**
_**Launch Site**_**:****	****	****Vandenburg AFB, CA**
_**Co-Manifest Partner**_**:****	****	****Cosmic Hot Interstellar Plasma Spectrometer (CHIPSat)**
_**Mission Objectives**_**:****	**
**        ****1.  Produce high accuracy and calibrated profiles of ice-sheet surface elevations over Greenland**
**             ****and Antarctica.**
**        ****2.  Produce calibrated profiles of global land and ocean surface elevations.**
**        ****3.  Produce calibrated vertical profiles of global cloud heights and vertical distributions of cloud **
**             ****and aerosol properties for the first time.**
**        ****4.  Map high accuracy ice-surface elevation changes over Greenland and Antarctica for the first **
**             ****time.**
**        ****5.  Characterize the seasonal variability of ice-sheet surface elevations over the mission lifetime.**
_**Website**_**:   http://icesat.gsfc.nasa.gov/**

**	****STATUS AS OF: 10/31/02**

## END OF MISSION PLAN DEVELOPMENT

**END OF MISSION PLAN DEVELOPMENT**
**COMPLETED**

_**Final Estimate**_**:  **
**	****Final Orbital Debris Generation report was approved by Headquarters on 4**** ****/**** ****9**** ****/**** ****01.  The total mission package included ICESat, CATSAT, DPAF, and launch vehicle.  Both ICESat and CATSAT meet the 8m****2**** guideline by significant margins.  ICESat is 3.9m****2**** and CATSAT 0.9m****2****.  ICESat will reenter in 15 years, which is well under the 25 year guideline.**
**	**
_**Disposal Option Assessment**_
**	**_**Controlled Reentry**_**:  Not practical - +240kg additional fuel and 6 months delay**
**	**_**Safe Orbit**_**:  Not feasible - same as re-entry**
**	**_**Shuttle Recovery**_**:  ICESat polar orbit not accessible to the shuttle; also spacecraft design not manned-flight rated**
**Expect no changes when CHIPSAT data becomes available**

**ICESat Project****	****STATUS AS OF: 10/31/02**

## PMC ACTION STATUS

**PMC ACTION STATUS**

_**Data**__** **__**/**__** **__**Source**_
**     ****NONE**

_**Status**_

**ICESat Project****	****STATUS AS OF: 10/31/02**

## ACRONYMS

**ACRONYMS**

**AFT - (GLAS aft optics)**
**AGS - Alaska Ground Station**
**ANT - Antenna**
**ARO - After Receipt of Order**
**ATP - Authority to Proceed**
**CCAS - Cape Canaveral Air Station**
**CEPT - Comprehensive Electrical Performance Test**
**CM - Center of Mass**
**CPT- Comprehensive Performance Test**
**CTU - Command and Telemetry Unit**
**DBC - Data Bus Coupler**
**DO- Delivery Order**
**DSU - Data Storage Unit**
**EAC - Estimate at Completion**
**E-BOX - Electronics Box (= MEU)**
**EDAC - Error Detection and Correction**
**EIC - Electrical Integration Complete**
**ENV - Environment or Environmental**
**EPS - Electrical Power Subsystem**
**FOR - Flight Operations Review**

**FOT - Flight Operations Team**
**FRR - Flight Readiness Review**
**FSW - Flight Software**
**FSWTB - Flight Software Test Bench**
**GOWG – Ground Operations Working Group**
**HRG - Hemispherical Resonating Gyro**
**HVPS - High Voltage Power Supply**
**IGS - ICESat Ground System**
**IIRR - Instrument Integration Readiness Review**
**IRU - Inertial Reference Units**
**ISF - Instrument Science Facility**
**I-SIPS - ICESat Science Investigator-Led Processing **
**IST - Instrument Star Tracker**
**ITOC - Instrument Test Operations Center**
**LASP - Laboratory for Atmospheric & Space Physics**
**LED- Light-Emitting Diode**
**LHP - Loop Heat Pipe **
**LPA - Laser Profiling Array**
**LRA - Laser Retro-Reflector Assembly**
**LRD - Launch Readiness Date**
**LRR - Launch Readiness Review**

**ICESat Project****	****STATUS AS OF: 10/31/02**

## ACRONYMS

**ACRONYMS**
**(CON’T)**

**LRS - Laser Reference System**
**LSM - Laser Steering Mechanism**
**MEU - Main Electronics Unit**
**MIC - Mechanical Integration Complete**
**MIWG - Mission Integration Working Group**
**MOC - Mission Operations Center**
**MOR - Mission Operations Review**
**MORD - Mission Operations Requirements Doc.**
**MOWG - Mission Operations Working Group**
**MPS - Multi-program Support**
**MRR - Mission Readiness Review**
**NADIR -Earth-facing side of spacecraft**
**NAC- National Agency Check**
**NGS - Norway Ground Station**
**NISN - NASA Integrated Services Network**
**NSIDC - National Snow and Ice Data Center**
**NTGSE - (Windows) NT Ground Support Equip**
**ORR - Operational Readiness Review**
**OTS - Optical Test Source**
**PDA - Power Distribution Assembly**

**PDU - Power Distribution Unit**
**PEC - Precise External Clock**
**PRA - Probabilistic Risk Assessment**
**RWA - Reaction Wheel Assembly**
**S**** ****/**** ****A - Solar Array**
**SADA -Solar Array Drive Assembly**
**SADE - Solar Array Drive Electronics**
**SCC - Spacecraft Control Computer**
**SEP - Spacecraft Electronics Package**
**SIPS -Science Investigator-Led Processing System**
**SIRU - Space Inertial Reference Unit**
**SLTC - Space Lidar Technical Center**
**SM - Safe Mode**
**SORD - Systems Operations Requirements Document**
**SPCM - Single Photon Counting Module**
**SRS- Stellar Reference System**
**TV - Thermal Vaccum**
**VCL- Verified Coupled Loads**

**ICESat Project****	****STATUS AS OF: 10/31/02**

## PROJECT OVERVIEW

_**SIGNIFICANT PROGRESS**_
_**ISSUES / CONCERNS**_

**G**

**PROJECT OVERVIEW**

**ICESat Project****	****STATUS AS OF: 10/31/02**

**Observatory shipped to VAFB on October 22.  Post- ship testing is complete.**
**LRD delayed to no earlier than 12/19/02.**
**Operations rehearsals continuing.**