The Role of Small Satellites in NASA and NOAA Earth Observation Programs (2000) / Chapter Skim
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7 Opportunities and Challenges in Managing Small Satellite Systems
7 Opportunities and Challenges in Managing Small Satellite Systems
Pages 51-57
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From page 51... ...
produced over 5,000 pages of material at a cost of several person-years of efforts TRW estimates that the Critical Design Review for the Total Ozone Mapping Sensor, now in orbit as part of the Earth Probes program, required 10 person-years of effort. A lower cost approach is to reduce the required paperwork to sufficient information to allow a knowledgeable engineer or manager to evaluate progress and risks.
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From page 52... ...
Reduced government oversight may substantially increase the risk of failure by not providing an outside viewpoint during the development process. Shorter development times (and perhaps lower profit margins)
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From page 53... ...
Management of Programmatic Risks Desirable characteristics of small satellite missions, such as more rapid development schedules and lower costs, are also associated with an increased likelihood of mission failure. Understanding, mitigating, and responding to the risk of failure are thus central issues in small satellite programs.
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From page 54... ...
For example, Microwave Monolithic Integrated Circuit technology, developed as an offshoot of various Department of Defense programs to improve millimeter-wave radar, is now being incorporated in the EOS Microwave Limb Scanner. Unless there is a continual research and development activity that can provide such new technologies, this source will eventually run dry, as the small missions typically extract these new developments but do not replenish them.
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From page 55... ...
may be needed to reduce the overall costs of a constellation approach, such as data assembly to provide global observation from narrow swath sensors or compressing of downlinked data streams. Adoption of a constellation approach for an Earth observation mission will require a far different management and budgeting structure within NASA than that currently in place.
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From page 56... ...
The community must be willing to streamline its proposal development and review procedures. Operational observing systems such as NPOESS will play an increasingly important role in Earth system research along with the traditional NASA research missions, and the research community must evaluate the full spectrum of Earth remote sensing missions in the context of a coherent observing strategy.
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From page 57... ...
Washington, D.C.: Central Intelligence Agency History Staff. Available through the National Technical Information Service.
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