International Project Management: The Cassini-Huygens Mission · 2019-01-13 · International...
Transcript of International Project Management: The Cassini-Huygens Mission · 2019-01-13 · International...
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International Project Management:
The Cassini-Huygens Mission
NASA Case Study
NASA Academy of Program/Project & Engineering Leadership
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How would you explore the moons of Saturn?
(watch a video: http://saturn.jpl.nasa.gov/video/videodetails/?videoID=19)
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Cassini-Huygens
U.S. - European mission to explore Saturn
NASA and Italian Space Agency: Cassini spacecraft
European Space Agency: Huygens probe
Launched October 1997
6.7 year voyage to Saturn
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Cassini and HuygensCassini
• Delivered Huygens probe to Titan
• Remained in orbit around Saturn for detailed studies of the planet, its rings and satellites (moons)
Huygens• Released by Cassini to
land on surface of Saturn’s moon Titan
• Investigated characteristics of Titan’s atmosphere and surface
Cassini
Saturn
Titan
Huygens
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Cassini-Huygens: the Complex Project Environment
Complex Project-Based Organization
Functional Organization
Problems Novel Routine
Technology New/invented Improved/more efficientTeam Global, multidisciplinary Local, homogeneousCost Life cycle UnitSchedule Project completion Productivity rate
Customer Involved at inception Involved at point of saleSurvival skill Adaptation Control/stability
Discussion point: does this model describe Cassini-Huygens?
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http://appel.nasa.gov (adapted from Vern Weyers, 2006)
Budget• Congressional appropriations• Changing agency
constraints and priorities
Schedule• Launch windows• Science/operational
requirements
Contractualfederal regulations
Sustained commitment• Administration• Congress• Public• Partners - academia, international, industry
Technological readinessOne-of-a-kind systems
Interfaces/systems engineering
Software
Unique testfacilities & eqpt.
Harsh environment
Long operational lifetimes
High performance requirements
It has to work the first time
Defining Project Complexity at NASA
PROGRAMMATIC TECHNICAL
PEOPLE
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Journey to Saturn included “gravity assists” (slingshot acceleration effects) from Venus, Earth and Jupiter -incredibly precise timing
Cassini orbiter would “insert”Huygens probe in orbit of Titan (one of Saturn’s moons)
Complex communications among Cassini, Huygens, Deep Space Network, and ground system
Technical Complexity: Zero Room for Error
Huygens descent to surface of Titan
Cassini trajectory to Saturn
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Italian Space Agency ESA
Cassini high-gain antenna; radio subsystemequipment
Organizational Complexity
NASA
Cassini orbiter; launch vehicleand associatedintegration & test
Huygens probeand associatedcommunications equipment on Cassini orbiter
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Case Study: International Collaboration
1998: New project manager 8 months after launch
Challenge #1Adding scientific activities during multi-year “cruise” to Saturn
Pressure from scientists - planetary fly-bys posed unique opportunityProject could “exercise” systems before SaturnExisting agreements: no additional budget or scheduleMulti-party negotiations with international science team
Solution: Science was added at no cost to the mission
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Case Study: International CollaborationChallenge #2
Adding full test of data communications system between Cassini and Huygens
Some key stakeholders considered test unnecessary
Test result: failure in telemetry systemSignificant data from Huygens about Saturn’s moon Titan would be lost
Solution: Required changing Cassini’s trajectory as it entered orbit around Titan
Major technical challengeUsed much of Cassini’s fuel reserve
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Case Study: International Collaboration
Challenge #2a: Regulations prohibited exchange offunds between NASA and ESA to solve the datacommunications problem
Solution: Instead of funds, ESA sent engineers to theJet Propulsion Lab to work with the NASA team there
ESA engineers encounter Cassini team of 200+, more complex and time-consuming processesLanguage barriers with ESA’s non-English native speakersITAR and post-9/11 security environment in U.S.
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Outcome: Mission Success
A close encounter with Titan
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"It is difficult to say what is impossible, for the dream of yesterday
is the hope of today and the reality of tomorrow.”
- Robert Goddard
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