MONTHLY STATUS REVIEW

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 Deputy Project Manager
Gregory Smith / 425 DPM / Resources
Linda Greenslade / 425
Instrument Development Dr. J. Abshire
/ 924 Ground System Development ESDIS /
423 Spacecraft Contractor
Ball
February 12, 2002
2
ICESat PROJECT SUMMARY STATUS AS OF 1/31/02
Major Interfaces
Resources
Prime
NOV DEC JAN
NOV DEC JAN
Spacecraft Bus
NOV DEC JAN
R 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
R G G G
R G G G
G G G G G G
Program Management
Launch Site (VAFB)
Subcontracts
Ground SYS / OPS (EOS)
Systems Engineering
JPL GPS Receivers
Subsystems
Spacecraft IT
Observatory IT
Science / Operations
Instruments
Business
NOV DEC JAN
NOV DEC JAN
NOV DEC JAN
GLAS
Y
Y
Y
R G G G
R G G G
R G G G
RD Budget
G
GLAS
G
G
Procurement
Workforce
Travel
Summary Assessment
LEGEND
Technical Cost Schedule
Overall
Good Shape
G
R
Y
R
R
Minor Problem
Y
Major Problem
R
3
ICESat SIGNIFICANT PROGRESS
STATUS AS OF 1/31/02

• COMPLETED A SERIES OF GLAS FUNCTIONAL TESTS WHICH
  WILL PROVIDE A BASIS FOR THE COMPREHENSIVE
  PERFORMANCE TEST
• COMPLETED A SERIES OF GLAS FUNCTIONAL TESTS WHICH
  WILL PROVIDE A BASIS FOR THE COMPREHENSIVE
  PERFORMANCE TEST.
• GLAS EMI TESTING BEGAN ON 2 / 1 / 02
• LASER (SN 001) OPTICAL REWORK COMPLETED.
  CURRENTLY BEING CHARACTERIZED IN THERMAL VACUUM.
  RESULTS TO DATE ARE NOMINAL.
• LASER (SN 005) ELECTRONICS BOARD RETURNED TO
  VENDOR TO BE READIED FOR INSTALLATION IN LASER
  (SN 003)
• MISSION OPERATIONS WORKING GROUP MEETING HELD ON
  1 / 30 / 02. NO MAJOR ISSUES SURFACED. TESTING
  PROCEEDING AS PLANNED.

4
SCHEDULE STATUS AS OF 1/31/02
DATE ESTAB COMPL 10 / 15 11
/ 1 Complete 10 / 15 11 / 30 Test
removed issue closed 11 / 15 1 / 30
Closed 11/15 2/15
PROBLEM / ISSUES PROGRAMMATIC
IMPACT ACTION
R

• Codes 400 and 500 are discussing ways to contain
  this problem
• Expedite thermal performance evaluation of
  optical system
• Conduct overall ICESat development and personnel
  assessment.
• Develop revised mission schedule

• Latest GLAS completion schedule causes impact to
  LRD.

• GLAS component rework cycles continue to erode
  GLAS integration and test schedule longer GLAS
  integration effort needed
• GLAS CPT only partially completed. Some problems
  under investigation. Instrument scientists
  struggling to interpret the data.

• CURRENT STATUS
• Working hard to preserve October-December 2002
  LRD.
• Developed new GLAS IT schedule that includes
  laser rework and early EMI test resulting in
  minimal schedule impact. Aggressively working
  all IT issues. Optimizing remaining mission
  schedule.

5
GLAS IT PROBLEMS IN
WORK LASERS STATUS AS OF 1/31/02
DATE ESTAB COMPL 11/29
2/15 1/28 3/15
PROBLEM/ISSUES PROGRAMMATIC
IMPACT ACTION
R
Laser S/N 001 failed during instrument
integration operations

• Loss of 1/3 of instrument lifetime.
• Initial estimate is 2-3 month impact to GLAS
  integration and delivery schedule

Replace amplifier stage. Replace electronics
board in all 3 lasers

• CURRENT STATUS
• Fault traced to a failed amplifier diode array
  assembly, amplifier module replaced.
• Subsequent capacitor failure during vibration
  test revealed deficient design of electronics
  board. Design modification options in
  development.
• Decision made to replace existing board in each
  laser with new boards.

6
GLAS IT PROBLEMS IN
WORK OPTICAL PATH STATUS AS OF 1/31/02
DATE ESTAB COMPL 11/30 2/28
PROBLEM/ISSUES PROGRAMMATIC
IMPACT ACTION
R
GLAS bore sight stability does not meet mission
performance requirements
Fundamental measurements may be compromised if
behavior persists on orbit.

• Hold mini-peer review on calibration results
• Get AETD and systems involvement in development
  of troubleshooting plan.

• CURRENT STATUS
• Peer Review held
• Retest conducted preliminary results look
  favorable with major errors traceable to set-up
  issues. Detailed data analysis results look
  promising.
• Additional analysis initiated on the telescope
  assembly.
• Test plan defined.

7
GLAS IT PROBLEMS IN
WORK LIDAR OPERATION STATUS AS OF 1/31/02
DATE ESTAB COMPL 12/17 2/15
PROBLEM/ISSUES PROGRAMMATIC
IMPACT ACTION
Y
Intermittent energy monitor on green laser
Potential compromise on Etalon operation and data
reduction

• Investigate root cause
• Investigate alternate means for Etalon operation
  and data reduction

• CURRENT STATUS
• Several troubleshooting tests conducted,
  inconclusive results.
• Alternate Etalon operation algorithms in
  development.
• Problem understood and board modification
  solution verified on the engineering model board.
  Alternative (baseline) software approaches being
  investigated and validated.

8
PMC ACTION STATUS
STATUS AS OF 1/31/02
Action(s) NONE
Data / Source
Status
9
REBASELINED ICESat PROJECT SCHEDULE February
12, 2002 J. Watzin
10
ASSESSMENT PERIOD SUMMARY (11 / 15 / 01 2 / 15
/ 02)

• REVIEWED GSFC TEAM
• MADE SEVERAL PERSONNEL CHANGES TO STRENGTHEN
  TECHNICAL DEPTH AND IMPROVE COMMUNICATION
• FOUND A HIGHLY MOTIVATED AND TECHNICALLY
  COMPETENT INSTRUMENT TEAM THAT WAS FUNCTIONING
  SOMEWHAT UNEVENLY
• CUTTING EDGE INSTRUMENT SYSTEM
• HIGH TURNOVER IN PERSONNEL
• INEXPERIENCED PERSONNEL, LITTLE MENTORING
• LOST EXPERTS IN HIGH-RISK TECHNOLOGIES
• DELETION OF ETU EFFORT
• UNNECESSARY ORGANIZATIONAL BARRIERS

11
ASSESSMENT PERIOD SUMMARY (11 / 15 / 01 2 / 15
/ 02) - continued

• WEATHERED MULTIPLE, MAJOR HARDWARE FAILURES ON
  GLAS
• LASER S / N 1 AMPLIFIER BLOW-OUT
• LASER S / N 3 DOUBLER HEATER CONTROLLER COUNTER
  FAILURE
• SPCM 3 FAILURE
• INTERMITTENT ENERGY MONITOR ON GREEN LASER
• MECHANICAL FAILURE IN LASER POWER SUPPLY
• ADDRESSED SIGNIFICANT GLAS TECHNICAL ISSUES
• UNCERTAIN BORE-SITE ALIGNMENT
• PARTIALLY DEFINED TEST PROGRAM
• REVIEWED BALL SPACECRAFT STATUS GOOD SHAPE
• REVIEWED LASP OPERATIONAL STATUS GOOD SHAPE

12
RECENT ACCOMPLISHMENTS

• GLAS INSTRUMENT INTEGRATED (WITH LIENS)
• SIGNIFICANT PROGRESS IN UNDERSTANDING THE GLAS
  BORE-SITE ISSUE
• SOLUTIONS DEVELOPED FOR ALL MAJOR GLAS HARDWARE
  FAILURES
• CORE CPT TESTS RUN
• EMI TESTING IN-WORK
• SHIFTED TO A DYNAMIC SCHEDULING APPROACH THAT
  HAS MAINTAINED DEVELOPMENT PROGRESS DESPITE MAJOR
  PROBLEMS

13
REBASELINE CONSIDERATIONS

• SIGNIFICANT UNCERTAINTY STILL CLOUDS THE DELIVERY
  HORIZON FOR GLAS INSTRUMENT
• ALL THREE GLAS LASERS STILL REQUIRE REWORK
• INSTRUMENT FUNCTIONAL AND PERFORMANCE TEST
  BASELINE IS NOT YET COMPLETE NOR UNENCUMBERED
  FROM ANOMALIES
• HIGHEST RISK ENVIRONMENTAL TESTS (VIBRATION,
  ACOUSTICS, T / V) REMAIN TO BE DONE
• ADEQUATE BORE-SITE STABILITY HAS NOT YET BEEN
  DEMONSTRATED

14
REBASELINE CONSIDERATIONS (continued)

• DYNAMIC SCHEDULING IS THE ONLY WAY TO MAINTAIN
  MAXIMUM PACE TOWARDS LAUNCH
• RUN-OUT SCHEDULE AFTER GLAS DELIVERY HAS BEEN
  OPTIMIZED
• RECOVERED 7 WEEKS
• DELTA 18-MONTH MAXIMUM DELAY CLAUSE EXPIRES 12
  / 31 / 02
• COMPENSATION FOR ADDITIONAL DELAYS MUST BE
  NEGOTIATED

15
PROPOSED REBASLINE

• 6 / 17 / 02 GLAS DELIVERY TO BALL
• 10 / 14 / 02 OBSERVATORY ARRIVAL AT VAFB
• 12 / 16 / 02 ICESat LAUNCH (NET)
• WEEKENDS (11 SUNDAYS) ONLY REMAINING RESERVE IN
  GLAS SCHEDULE WORKING TO IDENTIFY OTHER
  OPPORTUNITIES
• 2-WEEK RESERVE IN BALL SCHEDULE
• NOMINAL DELTA FLOW BACKED BY RECENT BALL
  QUICKBIRD EXPERIENCE

16
RECOMMENDATION

• BASELINE THE PROPOSED SCHEDULE
• WITH RECOGNITION OF ITS AGGRESSIVE NATURE
• WITH ACCEPTANCE OF THE NECESSITY OF NEAR-TERM
  MILESTONE TO BEST MANAGE THE SITUATION
• WITH EXPECTATION THAT IT BE RE-EVALUATED AT THE
  TIME OF INSTRUMENT DELIVERY
• FISCAL IMPACTS (COMPARED TO NOVEMBER 2001 REPLAN)
• ON-TIME DELIVERY RESULTS IN 0.8M INCREASE IN
  MISSION TOTAL COST
• 3.5M REDUCTION IN FY 02
• 4.3M INCREASE IN FY 03
• FURTHER DELAY IN GLAS DELIVERY RESULTS IN
  ADDITIONAL INCREMENTAL INCREASE TO MISSION TOTAL
  COST
• 3.3M / MONTH INCREASE IN FY 03

17
BACK UP
18
SPACECRAFT FLIGHT HARDWARE STATUS ICESat PROJECT


STATUS AS OF 1/31/02
EPS
CDH
3
4
PCU
ARRAY PANELS
SCC
SEP
PEC
DBC
PDA
TEST BATT
CTU
SSR
SADA
SADE
MIC
ENV
MIC
EIC
FUNCT
EIC
ENV
FUNCT
1
COMM
2
OTHER
ACS SENSORS
X-BAND XPNDR
S-BAND XPNDR
FLIGHT BATT
FSW
FSWTB
RF FILTER
GPS
ZENITH ANT
NADIR ANT
THRML RAD
FLT PAF
PROP MOD
MIC
ENV
FUNCT
EIC
STAR TRKR
FLT SIRU
ACS / ACTUATORS
PAF
STRUCT
SUN SENSORS
TORQR RODS
RWA
HRNSS
LRA
SUN SENSORS
MIC
EIC
ENV
FUNCT
Legend
SUN SENSORS (G) (G) (G) (G)
GSE
No Problems Minor Problems Major
Problems Complete/Delivered Integration
Complete GLAS Mounting
ITOC (GSFC)
ETM GPS
GLAS SIM
EM IST/LRS
CTV
MAGNETOMETERS
EIC
MIC

• Lost lock once during test thermal sensitivity
  under investigation
• Possible VIA problem on PWBs - spare boards in
  analysis at GSFC
• Adding ability to reset stuck DSU during
  planned thermal rework
• Adding thermal control circuits for more stable
  GLAS interface

FUNCT
ENV
(G)
19
INSTRUMENT STATUS ICESat Project


Status as of 1/31/02
RECEIVER SYSTEM
TRANSMITTER SYSTEM
STELLAR REFERENCE SYSTEM
TELESCOPE
LASER REF TELESCOPE
ROSI STAR TRACKER
COLLIMATED REF SOURCE
HARNESSING
LASER
LASER
LASER
ALTIMETRY TOWER
LASER PROFILING ARRAY
GYRO
LATERAL TRANSFER RETROs
LASER REF SENSOR
L S M
TRANSMIT OPTICS
L S M
LIDAR SYSTEM
FIBER OPTIC SYSTEM
THERMAL CONTROL SYSTEM
CONSTANT CONDUCT HEAT PIPES
LOOP HEAT PIPES/ RADIATORS
LASER (816nm) OTS
LED (532nm) OTS
ETALON
BEAM-SPLITTER ASSY
HEATERS/ INSTRUMENTATION
BLANKETING
SPCMs
LBSM
FIBER OPTICS
GROUND TEST PICKOFF ASSY
Legend
BENCH CHECKOUT EQUIPMENT
ELECTRONICS
TARGETS - MAIN/MINI/SRS
TEST SYSTEMS - ALTIMETER/LIDAR/ GPS
No Problems
MAIN ELECT UNIT
HIGH VOLTAGE PWR SUPPLY
Minor Problems
POWER DISTRIB UNIT
HARNESSING
Major Problems
CONTROL- LERS
WORK- STATIONS
NTGSE
20
IT SECURITY
STATUS AS OF 1/31/02
Risk National Management IT
Security Contingency Agency Number Authorization E
lement Plan Plan Plan Check People To
Proceed Ball / LASP Complete Complete Complete To
Center 22 Pending Security ISIPS /
ISF Final Pending Final Pending Final Pending To
be 18 N / A (GSFC Bldg 22)
Re-assessed Number increased significantly due
to changes in IT security requirement to include
data handling personnel. Forms have been
submitted and fingerprinting is in progress.
21
GSFC
ICESat MASTER SCHEDULE
APPVL RESP
C. SCOLESE
Status As Of
1/31/02
ACCOMP RESP
J. DEZIO
99
00
01
02
C
PROJECT/ELEMENT
4
Y
1
2
3
PER
LRD
FOR
PSR
LRR
MOR
REVIEWS
Time Now
MRR
FRR
SPACECRAFT
UNDER REVIEW
Avionics and Harness In-House
BALL AEROSPACE
Procure.s, Fab, Assy, Test
ACDS Prop
S/As
Ctrl Computers
PWR
CDH COM
Struct.
S/S Deliveries
Subsystem IT
2 Weeks Reserve
Bus Qual w/Instr Mass Model and Elec I/F C/O
w/Simulators
GLAS IT
Environmental Testing
LRD 10/31
Box, Pack, and Ship
CDR
Drill
Flt
GLAS INSTRUMENT
Flt Lasers 2 3
Launch Operations
Template
1
Flt Laser
Tele
GSFC CODE 900
(Proposed)
3
Slip Delv to 4/30
Fabrication
PER 12/15
Assy Test
Review ATBDs
Original GLAS Delv.
1 week reserve
Oral
SIPS Version 3
Version 1
Beta Version
Final
SCF Launch Ready
SIPS Version 1
Reviews
SIPS H/W
SIPS CDR
ATBDs
SIPS Version 2
Report
SCIENCE/ISIPS GSFC CODE 900
ORR
Design/Development/Integrate/Test
FDS PDR
Cmd/Tlm Test
Vac Test
CTV
Sim Dress Rehearsals
MOR
Award
CONTROL CENTER/FOT BALL AEROSPACE
FOT Training
Design/Development/Integrate/Test
Final IGS Test Plan
E-T-E Test
Draft IGS Test Plan
Final MORD
30 Day C/O
GRD ORR
EDOS
AGSNGS
ISF
MOWG 2
NSIDC
ESDIS GROUND SYSTEM OPERATIONS
Development
GLAS C/O
LOX Tanks (C)
LOX Tanks (S)
DPAF (C)
S/C Fit Check
Award
DPAF Assy/Mfgr (S)
Delv
LAUNCH VEHICLE DELTA 7320
Manufacturing , Assembly, and Test
Delivery and Launch Operations
CCAS DMCO
Fuel Tanks (S)
Complete 2nd Stage
Start 2nd Stage
Fuel Tanks (C)
22
SCHEDULE SLACK OVERVIEW
STATUS AS OF 1/31/02
CONTRACT/
DELIVERY CURRENT SOURCE DATE ESTIMATE SLACK G
LAS INSTRUMENT CODE 500 S/C BUS BALL
OBSERVATORY IT BALL AND
LAUNCH NOTES SCHEDULE UNDER REVIEW
23
SCHEDULE SLACK HISTORY
STATUS AS OF 1/31/02
SCHEDULE UNDER REVIEW
12 8 4 0
11 WEEKS TOTAL PROGRAM
4 WEEKS TO GLAS FOR IT COMPONENT PROBLEM
RESOLUTION
W E E K S
REWORK OF HEAT PIPES, SPCMS, LASER ADJUSTMENT
AND DC / DC CONVERTERS
LATE SRS AND OTHER COMPONENT DELIVERIES TO IT
ASSUMES GLAS DELIVERY DATE OF 12/1/01 AND 6/1/02
LRD
LRD CHANGE TO 12 / 15 / 01
INSTALLATION OF INVAR COUNTER WEIGHTS ON LSMS
REPLACED DAMAGED HOP EVALUATED TURNING MIRROR
SCRATCH REPEATED WORKMANSHIP VIBRATION OF LSM-2
FLIGHT E-BOX INDUCTOR REPAIR
GLAS AETD SCHEDULE REBASELINE AND PROPOSED
10/31/02 LRD
OPTICAL STABILITY AND E-BOX REWORK
12/15/01 LRD
10/31/02 LRD PROPOSED
6/01 LRD
-4 WEEKS SLACK
4/00 1/01 1/02
1/03
24
TREND ANALYSIS
STATUS AS OF 1/31/02

SCHEDULE UNDER REVIEW


25
END OF MISSION PLAN DEVELOPMENT COMPLETED
STATUS AS OF 1/31/02
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
26
ACRONYMS
STATUS AS OF 1/31/02
AFT - (GLAS aft optics) AGS - Alaska Ground
Station ANT - Antenna ARO - After Receipt of
Order ATP - Authority to Proceed CCAS Cape
Canaveral Air Station 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 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 LRS - Laser Reference System
27
ACRONYMS
STATUS AS OF 1/31/02
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 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
28
PROJECT OVERVIEW
STATUS AS OF 1/31/02

• ICESat
• SIGNIFICANT PROGRESS
• COMPLETED A SERIES OF GLAS FUNCTIONAL TESTS WHICH
  WILL PROVIDE A BASIS FOR THE COMPREHENSIVE
  PERFORMANCE TEST
• COMPLETED A SERIES OF GLAS FUNCTIONAL TESTS WHICH
  WILL PROVIDE A BASIS FOR THE COMPREHENSIVE
  PERFORMANCE TEST
• GLAS EMI TESTING BEGAN ON 2 / 1 / 02
• LASER (SN 001) OPTICAL REWORK COMPLETED.
  CURRENTLY BEING CHARACTERIZED IN THERMAL VACUUM.
  RESULTS TO DATE ARE NOMINAL.
• MISSION OPERATIONS WORKING GROUP MEETING HELD ON
  1 / 30 / 02. NO MAJOR ISSUES SURFACED. TESTING
  PROCEEDING AS PLANNED.
• ISSUES / CONCERNS
• GLAS HARDWARE FAILURES AND ANOMALIES HAVE
  IMPACTED SCHEDULE AND REPRESENT SIGNIFICANT LIENS
  ON THE FLIGHT SYSTEM HOWEVER, TEAM IS WORKING
  HARD TO PRESERVE OCTOBER-DECEMBER 2002 LRD.

R