Unaccelerated Geocentric Velocities and Influx Rates of Sporadic Photographic Meteors

Unaccelerated Geocentric Velocities and Influx Rates of Sporadic Photographic Meteors PDF Author: C. D. Miller
Publisher:
ISBN:
Category : Meteors
Languages : en
Pages : 68

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Unaccelerated Geocentric Velocities and Influx Rates of Sporadic Photographic Meteors

Unaccelerated Geocentric Velocities and Influx Rates of Sporadic Photographic Meteors PDF Author: C. D. Miller
Publisher:
ISBN:
Category : Meteors
Languages : en
Pages : 68

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Unaccelerated Geocentric Velocities and Influx Rates of Sporadic Photographic Meteors

Unaccelerated Geocentric Velocities and Influx Rates of Sporadic Photographic Meteors PDF Author: C. D. Miller
Publisher:
ISBN:
Category : Meteors
Languages : en
Pages : 59

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Empirical Analysis of Unaccelerated Velocity and Mass Distributions of Photographic Meteors

Empirical Analysis of Unaccelerated Velocity and Mass Distributions of Photographic Meteors PDF Author: Cearcy D. Miller
Publisher:
ISBN:
Category : Atmosphere
Languages : en
Pages : 68

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An empirical analysis was performed on data for 2000 sporadic meteors. A bimodal log-normal equation was found for unaccelerated velocity distribution, by empirical curve fitting to match observed velocity distributions for meteoroids within 10 ranges of mass with due regard to failure of observation of faint meteors. An exponent of -1.34 was confirmed in the equation for cumulative influx rate of meteoroids relative to mass. An exponent of -3.87 was established for meteoroid velocity relative to Earth's atmosphere as used in an earlier weighting factor for correction of biasing effects of velocity and mass. Earlier theoretical results were closely approximated.

NASA Technical Note

NASA Technical Note PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1004

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Necessary Thickness of Randomly Oriented Armor for Meteoroid Protection

Necessary Thickness of Randomly Oriented Armor for Meteoroid Protection PDF Author: C. D. Miller
Publisher:
ISBN:
Category : Armor
Languages : en
Pages : 52

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Book Description
Determination of armor thickness necessary for meteoroid protection.

Meteoroid Hazard Evaluation for Simple Structures with Various Orientations

Meteoroid Hazard Evaluation for Simple Structures with Various Orientations PDF Author: Cearoy D. Miller
Publisher:
ISBN:
Category : Armor
Languages : en
Pages : 76

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A statistical analysis was performed with use of Smithsonian Astrophysical Observatory's data on photographic meteors with use of weighting factors developed at Lewis Research Center for correction of various biases involved in meteor photography. The analysis used an armor damage criterion supplied by Ames Research Center. Although the analysis was restricted to Earth's orbit about Sun, implications are discussed regarding total population of meteoroids throughout the solar system. In Earth's orbit about the Sun, advantage was found for cylindrical armor extending in the solar direction and a plane sheet alined normal to apex of Earth movement.

Monthly Catalog of United States Government Publications, Cumulative Index

Monthly Catalog of United States Government Publications, Cumulative Index PDF Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504

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Manned Operations for the Apollo Lunar Module in a Simulated Space Environment

Manned Operations for the Apollo Lunar Module in a Simulated Space Environment PDF Author: O. L. Pearson
Publisher:
ISBN:
Category : Extravehicular space suits
Languages : en
Pages : 920

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Book Description
Simulated space environment performance tests of Apollo lunar module in thermal vacuum environment.

A Selected Listing of NASA Scientific and Technical Reports

A Selected Listing of NASA Scientific and Technical Reports PDF Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 962

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NASA Scientific and Technical Reports

NASA Scientific and Technical Reports PDF Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 966

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