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1. How could such a mistake have occurred between the two teams? 2. What does the mistake suggest abouut the degree of interaction and coordination between the  teams? 3. How might this problem have been prevented?

1. How could such a mistake have occurred between the two teams? 2. What does the mistake suggest abouut the degree of interaction and coordination between the  teams? 3. How might this problem have been prevented?

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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1. How could such a mistake have occurred between the two teams?

2. What does the mistake suggest abouut the degree of interaction and coordination between the  teams?

3. How might this problem have been prevented? 

**Case 17.2: Mars Climate Orbiter Spacecraft** NASA designed the Mars Climate Orbiter spacecraft to collect data about Mars’ atmospheric conditions and serve as a data relay station. Instruments aboard the Orbiter would provide detailed information about the temperature, dust, water vapor, and carbon dioxide in Mars’ atmosphere for approximately 2 Earth years. The Orbiter would also provide a relay point for data transmissions to and from spacecraft on the surface of Mars for up to 5 years. Nine months after launch, the Orbiter arrived in the vicinity of Mars and fired its main engine to go into orbit around the planet. Everything looked normal as it passed behind Mars as seen from the Earth. After that, the Orbiter was never heard from again; presumably, it had crashed into the planet. Paraphrasing project manager Richard Cook, “We had planned to approach the planet at an altitude of about 150 kilometers, but upon review of data leading up to the arrival, we saw indications that the approach altitude was much lower, about 60 kilometers. We believe the minimum survivable altitude for the spacecraft would have been 85 kilometers.” Later, an internal peer review attributed the $280 million mission loss to an error in the information passed between the two teams responsible for the Orbiter’s operations, the spacecraft team in Colorado and the mission navigation team in California. In communicating back and forth, one team had used imperial units (feet, pounds), the other had used metric units (meters, grams). Without knowing it, the two teams were using different measurement systems for information critical for maneuvering the spacecraft into proper Mars orbit.
Transcribed Image Text:**Case 17.2: Mars Climate Orbiter Spacecraft** NASA designed the Mars Climate Orbiter spacecraft to collect data about Mars’ atmospheric conditions and serve as a data relay station. Instruments aboard the Orbiter would provide detailed information about the temperature, dust, water vapor, and carbon dioxide in Mars’ atmosphere for approximately 2 Earth years. The Orbiter would also provide a relay point for data transmissions to and from spacecraft on the surface of Mars for up to 5 years. Nine months after launch, the Orbiter arrived in the vicinity of Mars and fired its main engine to go into orbit around the planet. Everything looked normal as it passed behind Mars as seen from the Earth. After that, the Orbiter was never heard from again; presumably, it had crashed into the planet. Paraphrasing project manager Richard Cook, “We had planned to approach the planet at an altitude of about 150 kilometers, but upon review of data leading up to the arrival, we saw indications that the approach altitude was much lower, about 60 kilometers. We believe the minimum survivable altitude for the spacecraft would have been 85 kilometers.” Later, an internal peer review attributed the $280 million mission loss to an error in the information passed between the two teams responsible for the Orbiter’s operations, the spacecraft team in Colorado and the mission navigation team in California. In communicating back and forth, one team had used imperial units (feet, pounds), the other had used metric units (meters, grams). Without knowing it, the two teams were using different measurement systems for information critical for maneuvering the spacecraft into proper Mars orbit.
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