# Presentation: 199134

## 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**

**April 9, 2002**

## ICESat PROJECT SUMMARY

**G**

**Y**

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

**R**
**G**
**G**
**G**

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

**R**
**G**
**G**
**G**

**R**

**Y**

**G**

**G**

**Y**

**G**

**G**

**G**

**Y**

**Y**

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

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

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

**ICESat PROJECT SUMMARY**
**STATUS AS OF:  3/31/**** ****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**

** ****JAN  FEB    MAR**

**Spacecraft Bus:**

**Prime**

**Major Interfaces**

**Resources**

**Instruments**

**Business**

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

**Summary Assessment**

**R**
**G**
**G**
**G**

**Y**

**JPL GPS Receivers**

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

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

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

**GLAS**

** ****JAN  FEB    MAR**

** ****JAN   FEB    MAR**

** ****JAN   FEB    MAR**

** ****JAN    FEB   MAR**

**  ****JAN   FEB   MAR**

**R**
**G**
**G**
**G**

**Y**

## SCHEDULE

**G**

**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**

**CURRENT STATUS**
**GLAS on proposed re-plan schedule for June 17 delivery and subsequent 12/16 LRD.  Schedule to be presented to HQ**** ****/**** ****Code Y in mid-March.**
_**Launch manifest indicates NET 12/19/02 LRD**_
_**GLAS remains on schedule for June 17 delivery.  Code Y PMC rescheduled for May 3.  CLOSED**_

**SCHEDULE**
**ICESat Project****	****STATUS AS OF:   3/31/02**

**       ****PROBLEM**** ****/**** ****ISSUES          PROGRAMMATIC IMPACT                        ACTION**

**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.**

**          ****DATE**
**   ****ESTAB  COMPL**
**  ****10**** ****/**** ****15     11**** ****/**** ****1**
**      ****Closed**
**   ****10**** ****/**** ****15   11**** ****/**** ****30**
**  ****Test removed**
**   ****issue closed**
**   ****11**** ****/**** ****15  1**** ****/**** ****30**
**       ****Closed**
**   ****11/15    2/15**
**     ****Complete**

## GLAS I&T PROBLEMS IN WORK

**Y**

**GLAS boresite stability does not meet mission performance requirements**** **

**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.**
**Plan in place to validate; requires completion of environmental test program.**

**GLAS I&T PROBLEMS IN WORK**
**OPTICAL PATH**
**ICESat Project****	****STATUS AS OF:   3/31/02**

**       ****PROBLEM/ISSUES            PROGRAMMATIC IMPACT                        ACTION**

**          ****DATE**
**   ****ESTAB  COMPL**
**    ****11/30    6/15**
**      **

**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.**

## GLAS I&T PROBLEMS IN WORK

**Intermittent energy monitor on green laser**

**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.**
**Software fix to be validated in T**** ****/**** ****V testing**

**GLAS I&T PROBLEMS IN WORK**
**LIDAR OPERATION**
**ICESat Project****	****STATUS AS OF:   3/31/02**

**       ****PROBLEM/ISSUES            PROGRAMMATIC IMPACT                        ACTION**

**          ****DATE**
**   ****ESTAB  COMPL**
**   ****12/17    6/15**
**     **

**Y**

**Potential compromise on Etalon operation and data reduction**

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

## COST

**Y**

**CURRENT STATUS**
**Schedule and cost requirements ready to be presented to HQ**** ****/**** ****Code Y in mid-March.**
_**Code Y PMC rescheduled for May 3.**_
_**Working with Code Y to determine plan for providing additional mission funding.  Plan may require substantial FY02 carryover and FY03 emergency operating plan submittal.**_

**COST**
**ICESat Project****	****STATUS AS OF:   3/31/02**

**       ****PROBLEM**** ****/**** ****ISSUES          PROGRAMMATIC IMPACT                        ACTION**

**          ****DATE**
**   ****ESTAB  COMPL**
**    ****7/**** ****01    11/15**
**     ****Complete**
**  ****11**** ****/**** ****01    2/28**
**     ****Complete**
**    **_**4/02**_**      **_**6/02**_

**Cannot meet late 2002 LRD without additional funding.**
**Potential additional cost and schedule impact to late 2002 LRD**

**ICESat is unfunded beyond 5**** ****/**** ****31**** ****/**** ****02**
**Cost**** ****/**** ****schedule impact of SN001 Laser and other anomalies**

**Present overguide requirements to Code Y.**
**Generate cost**** ****/**** ****schedule impacts**
_**Pursue budget approval through POP-02 process.**_

## PMC ACTION STATUS

_**NONE**_

**PMC ACTION STATUS**

_**Data**__** **__**/**__** **__**Source**_

_**Status**_

**ICESat Project****	****STATUS AS OF:   3/31/02**

## IT SECURITY

**	****Management****	****IT Security****	****Contingency****	****Agency****	****Number****	****Authorization**
_**Element**_**	**_**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.**

**IT SECURITY**

**ICESat Project****	****STATUS AS OF:   3/31/02**

## ICESat SIGNIFICANT PROGRESS

**ICESat SIGNIFICANT PROGRESS**

**ICESat Project****	****STATUS AS OF:   3/31/02**

**THE GLAS INSTRUMENT IS FULLY INTEGRATED.**
**GLAS HAS SUCCESSFULLY COMPLETED ACOUSTICS**
**GLAS VIBRATION TESTING IS UNDERWAY – TWO AXES SUCCESSFULLY COMPLETED**
**INITIATED A RISK MITIGATION EFFORT TO DEVELOP CORRECTIVE OPTICS DEVICE FOR USE IF THE GLAS BORESITE PERFORMANCE PROVES TO BE UNACCEPTABLE**
**INSTALLATION OF HEATERS ON UPPER DECK OF THE SPACECRAFT IS COMPLETE.  LIMITED FUNCTIONAL TESTING IS UNDERWAY; FULL FUNCTIONAL TESTING WILL TAKE PLACE IMMEDIATELY BEFORE GLAS DELIVERS.**
**CONDUCTED A EEE PARTS AUDIT ON THE SPACECRAFT – BALL HAS HANDLED RESIDUAL PARTS PROBLEMS VERY WELL.**

## GLAS ENROUTE TO ACOUSTICS (4/2/02)

**GLAS ENROUTE TO ACOUSTICS (4/2/02)**

## VIBRATION TESTING

**VIBRATION TESTING**
**(4/5-9/02)**

## Slide 12

## ICESat SCHEDULE SLACK

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

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

**ICESat SCHEDULE SLACK**

**ICESat Project****	****STATUS AS OF:   4/9/02**

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

**Replan to 12/02 LRD**

## BACKUP

## 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:   2/28/02**

## ICESat PROJECT

**ICESat PROJECT**
**OUTSTANDING PROPOSALS STATUS**

_**Contract Number**_**:  NONE**
_**Contractor**_**:  **
_**Technical Officer**_**:  **
_**Contract Officer**__** **__**/**__** **__**Specialist**_**:  **
_**Type Action**_**:  **
_**In-house Estimate**_**:  **
_**Proposed Value**_**:  **
_**Proposal Date**_**:  **
_**Technical Completion**_
**	****Plan:  **
**	****Actual:  **
_**Award Date**_
**	****Plan:  **
**	****Actual:  **

**ICESat Project****	****STATUS AS OF:   3/31/02**

## 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**
**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**

**ICESat Project****	****STATUS AS OF:   3/31/02**

## ACRONYMS

**ACRONYMS**

**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**

**ICESat Project****	****STATUS AS OF:   3/31/02**

## PROJECT OVERVIEW

**Y**

**PROJECT OVERVIEW**

**ICESat**
_**SIGNIFICANT PROGRESS**_
**THE GLAS INSTRUMENT IS FULLY INTEGRATED**
**GLAS HAS SUCCESSFULLY COMPLETED ACOUSTICS**
**GLAS VIBRATION TESTING IS UNDERWAY – TWO AXES SUCCESSFULLY COMPLETED**
**INITIATED A RISK MITIGATION EFFORT TO DEVELOP CORRECTIVE OPTICS DEVICE FOR USE IF THE GLAS BORESITE PERFORMANCE PROVES TO BE UNACCEPTABLE**
**INSTALLATION OF HEATERS ON UPPER DECK OF THE SPACECRAFT IS COMPLETE.  LIMITED FUNCTIONAL TESTING IS UNDERWAY; FULL FUNCTIONAL TESTING WILL TAKE PLACE IMMEDIATELY BEFORE GLAS DELIVERS**
**CONDUCTED A EEE PARTS AUDIT ON THE SPACECRAFT – BALL HAS HANDLED RESIDUAL PARTS PROBLEMS VERY WELL**
_**ISSUES / CONCERNS**_
**NO NEW ISSUES**

**ICESat Project****	****STATUS AS OF:   3/31/02**