QUARTERLY IN POWER POINT

1
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
SEPTEMBER 10, 2002
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ICESat PROJECT SUMMARY STATUS AS OF 8/31/02
Major Interfaces
Resources
Prime
JUN JUL AUG
JUN JUL AUG
Spacecraft Bus
JUN JUL AUG
G G G G G G
G G G G G G
G G G G G G
Launch Vehicle
G G G G
G G G G
G G G G
G G G G
Y
Y
Program Management
G G G G
G G G G
Launch Site (VAFB)
Subcontracts
Ground SYS / OPS (EOS)
Systems Engineering
JPL GPS Receivers
Subsystems
Spacecraft IT
Observatory IT
Science / Operations
Instruments
Business
JUN JUL AUG
JUN JUL AUG
JUN JUL AUG
GLAS
G G G Y
G
G G G G
G G G G
G
G
Y
RD Budget
Y
G
GLAS
Procurement
Workforce
G
Travel
Summary Assessment
LEGEND
Technical Cost Schedule
Management Overall
G
Good Shape
G
G
G
G
G
Minor Problem
Y
R
Major Problem
3
SCIENCE PERFORMANCE ASSESSMENT ICESat
Project STATUS AS OF 8/31/02
DATE ESTAB COMPL 7/22 9/6

Y
PROBLEM/ISSUES PROGRAMMATIC
IMPACT ACTION
Altimetry error estimates exceed mission
objectives in some operational circumstances.
Degraded science products

• Brief Code Y on impacts to mission
• Optimize GLAS performance on- orbit
• Complete BAM development and qualification

• CURRENT STATUS
• Code Y briefing scheduled for Aug 6. Decision to
  proceed as-is and revisit after Observatory T/V.
• Observatory T/V tests identified to validate
  restricted temperature operations for GLAS.
• Observatory T/V complete. GLAS performance
  report published 9-3-02. HQ status mtg held
  9-6-02.

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LAUNCH VECHICLE SCHEDULE ICESat Project STATUS
AS OF 8/31/02
DATE ESTAB COMPL 8/7
8/21
Y
PROBLEM/ISSUES PROGRAMMATIC
IMPACT ACTION
Secondary payload (CHIPSAT) working a very tight
schedule to make Boeing/DELTA deliverables.
Launch delay
Establish milestones for decisions to slip launch
or de-manifest secondary payload. Verified
coupled loads (VCL) model due 9/2.

• CURRENT STATUS
• GSFC management briefed on potential issues.
• CHIPSat Vibration testing completed 8/31/02.
• Correlated model not yet delivered to Boeing.

5
IT SECURITY NAC STATUS STATUS AS OF
8/31/02
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ICESat SIGNIFICANT PROGRESS
ICESat Project STATUS AS OF 8/31/02

• SIGNIFICANT PROGRESS
• Observatory performance was excellent.
• - Observatory T/V successfully completed.
• - Boresight performance report issued
  immediately afterwards.
• Combined MOWG/GOWG conducted at VAFB on August
  27-28.
• Ball contract modification negotiations
  progressing well.
• ISSUES / CONCERNS
• Science team concerns re anticipated accuracy of
  altimetry measurements places potential lien
• on flight of the mission.
• Careful attention must be placed on CHIPSAT
  schedule performance to assure launch is not
• delayed.
• Ball position to test for MECO loads creates
  unnecessary technical risks for Observatory.
• Project and AETD working with BALL to resolve.
• It appears that an USAF Titan launch has taken
  the date (12/15) we desired. Now we follow this
• launch. The risk of a holiday delay has just
  increased dramatically.

7
PROJECT RESERVES
ICESat Project STATUS AS OF 8/31/02
Cost Unliened / unencumbered
reserves 11.5 in
Cost-to-Complete Schedule (Unscheduled
Months) 1.56 Year until Launch
Mass (Allocated-Estimated) 1050
981 6.6 Allowed 1050 Power (Allocated-Estim
ated) 792 668 15.7 Allocated 792

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ICESat SCHEDULE SLACK
ICESat Project STATUS AS OF 8/31/02
84 56 28 0
D A Y S
Replan to 12/02 LRD
ACCEPTED CODE M REQUEST TO ADVANCE LAUNCH TIL
12/15/02
Mar Apr May Jun Jul Aug
Sept Oct Nov Dec 02
LRD
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ICESat
BACKUP
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ICE, CLOUD, AND LAND ELEVATION SATELLITE (ICESat)
STATUS AS OF 8/31/02
Project Management GSFC/Code 425 Spacecraft Ba
ll 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
EGG 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/
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END OF MISSION PLAN DEVELOPMENT COMPLETED
ICESat Project STATUS AS OF 8/31/02
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 8m2 guideline by
significant margins. ICESat is 3.9m2 and CATSAT
0.9m2. 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
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PMC ACTION STATUS
ICESat Project STATUS AS OF 8/31/02
Action(s) T.Jones to prepare a summary chart of
the draft GSFC policy from the 7/23/02 Collision
Avoidance(COLA) presentation to the PMC.
Status
Data / Source 7/23/02 COLA PRESENTATION
Present to GPMC at 8/15/02 COLA Meeting. CLOSED
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UNDEFINITIZED CONTRACT ACTIONS ICESat Project

STATUS AS OF 08/31/02
TARGET DATE DEFINITIZATION CONTRACT
VALUE ISSUED DATE STATUS
Launch Delay - ICESat
Tech eval received on 7/19/02. In
negotiation expect award 9/30/02.
GLAS NAS5-99003 EG G
475K
5/17/02
8/30/02
Launch Delay- ICESat
GLAS NAS5-99004 UNIV. WI
Tech eval received on 7/18/02. In
negotiation expect award 9/30/02.
98K
5/17/02
8/30/02
GLAS NAS5-99005 UNIV. TEXAS
Tech eval received on 7/18/02. In
negotiation expect award 9/30/02.
2,028K
5/17/02
8/30/02
Launch Delay ICESat
GLAS NAS5-99006 UNIV.CA - SD
389K
5/17/02
8/30/02
Launch Delay - ICESat
Tech eval received on 6/12/02. In
negotiation expect award 9/30/02.
GLAS NAS5-99007 MIT
392K
5/17/02
8/30/02
Tech eval received on 5/29/02. In negotiation
expect award 9/30/02.
Launch Delay - ICESat
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ACRONYMS
ICESat Project STATUS AS OF 8/31/02
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
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ACRONYMS (CONT)
ICESat Project STATUS AS OF 8/31/02
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
LRS - Laser Reference System LSM - Laser Steering
Mechanism MECO- Main Engine Cut-Off 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
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PROJECT OVERVIEW
ICESat Project

STATUS AS OF 8/31/02
ICESat
G

• SIGNIFICANT PROGRESS
• Observatory performance was excellent.
• - Observatory T/V successfully completed.
• - Boresight performance report issued
  immediately afterwards.
• Combined MOWG/GOWG conducted at VAFB on August
  27-28.
• Ball contract modification negotiations
  progressing well.
• ISSUES / CONCERNS
• Science team concerns re anticipated accuracy of
  altimetry measurements places potential
• lien on flight of the mission.
• Careful attention must be placed on CHIPSAT
  schedule performance to assure launch is not
• delayed.
• Ball position to test for MECO loads creates
  unnecessary technical risks for Observatory.
• Project and AETD working with BALL to resolve.
• It appears that an USAF Titan launch has taken
  the date (12/15) we desired. Now we follow
• this launch. The risk of a holiday delay has
  just increased dramatically.