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Test of CCD Precision Limits for Differential Photometry

W. J., Borucki E. W., Dunham M. Z., Wei L. B., Robinson C. H., Ford A. F., Granados

Results of tests to demonstrate the very high differential-photometric stability of CCD light sensors are presented. The measurements reported here demonstrate that in a controlled laboratory environment, a front-illuminated CCD can provide differential-photometric measurements with reproducible precision approaching one part in 105. Practical limi...

Supporting Research and Technology Activities for a Microwave Observing Program to Search for Extraterrestrial Intellige...

Jill, Tarter Peter, Backus

Curriculum materials based on the search for extraterrestrial intelligence (SETI) were developed for grades 3 through 9 science classes. The project was supported in part by NASA. Six teacher s guides, plus ancillary visuals, addressing topics in astronomy, biology, chemistry, geosciences, and physics as well as mathematics, social sciences, and la...

Integration of planetary protection activities

Margaret S., Race

For decades, NASA has been concerned about the protection of planets and other solar system bodies from biological contamination. Its policies regarding biological contamination control for outbound and inbound planetary spacecraft have evolved to focus on three important areas: (1) the preservation of celestial objects and the space environment; (...

Jet-like features near the Nucleus of Chiron

J. L., Elliot C. B., Olkin E. W., Dunham C. H., Ford D. K., Gilmore D., Kurtz D., Lazzaro D. M., Rank P., Temi R. M., Bandyopadhyay ...

Considered as a comet, the object 2060 Chiron is unusual in two respects: it exhibits outbursts at very large distances from the Sun, and its nucleus is much larger than that of any other known comet. It is, however, similar in size to the recently discovered Kuiper-belt objects - a population of objects with orbits beyond Neptune, which are a poss...

The Telecommunications and Data Acquisition Report.

This report contains information concerning the science and technology of Central Eurasia s space technology. Specific topics include: (1) manned mission highlights, (2) space sciences, (3) interplanetary sciences, (4) space engineering, (5) space applications, (6) space policy, administration, and (7) life sciences.

Research and Technology, 1990.

Selected research and technology activities at Ames Research Center, including the Moffett Field site and the Dryden Flight Research Facility, are summarized. These accomplishments exemplify the Center s varied and highly productive research efforts for 1990. The activities addressed are under the directories of: (1) aerospace systems which contain...

Photon Sail History, Engineering, and Mission Analysis.

Gundersen, M. A.

During the last year the major activity of the Communicating Science and Engineering project involved the third workshop (Catalyst Workshop) planned through the American Film Institute with the participation of colleagues in the industry, and with assistance from media experts at the National Academy. This workshop had the goals of (1) providing ...

Tracking and Data Acquisition System for the 1990 S. Volume 8: TDAS Frequency Planning.

Renzetti, N. A.

No abstract available.

Basic Research in the Mission Agencies: Agency Perspectives on the Conduct and Support of Basic Research.

Murray, G. E. Hahn, T. M. Cooke, L. M. Hueg, W. F.

Major advances in our understanding of the Universe over the history of astronomy have often arisen from dramatic improvements in our ability to observe the sky to greater depth, in previously unexplored wavebands, with higher precision, or with improved spatial, spectral, or temporal resolution. Aided by rapid progress in information technology, c...

Astronautics and Aeronautics, 1985: A Chronology.

Freitas, R. A. Gilbreath, W. P.

No abstract available.

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