Author: Friedrich Horz
Publisher:
ISBN:
Category : Cosmic dust
Languages : en
Pages : 214
Book Description
Contains preliminary analyses of residues of hypervelocity projectiles that encountered gold substrates exposed by instrument A0187-1 on the Long Duration Exposure Facility (LDEF). The purpose of this catalog is to provide detailed evidence and criteria that may be used to arrive at specific particle types on a case-by-case basis and to group such particles into compositional classes.
Compositional Analysis and Classification of Projectile Residues in LDEF Impact Craters
Author: Friedrich Horz
Publisher:
ISBN:
Category : Cosmic dust
Languages : en
Pages : 214
Book Description
Contains preliminary analyses of residues of hypervelocity projectiles that encountered gold substrates exposed by instrument A0187-1 on the Long Duration Exposure Facility (LDEF). The purpose of this catalog is to provide detailed evidence and criteria that may be used to arrive at specific particle types on a case-by-case basis and to group such particles into compositional classes.
Publisher:
ISBN:
Category : Cosmic dust
Languages : en
Pages : 214
Book Description
Contains preliminary analyses of residues of hypervelocity projectiles that encountered gold substrates exposed by instrument A0187-1 on the Long Duration Exposure Facility (LDEF). The purpose of this catalog is to provide detailed evidence and criteria that may be used to arrive at specific particle types on a case-by-case basis and to group such particles into compositional classes.
Compositional Analysis and Classification of Projectile Residues in Ldef Impact Craters
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723544187
Category :
Languages : en
Pages : 214
Book Description
This catalog contains preliminary analyses of residues of hypervelocity projectiles that encountered gold substrates exposed by instrument A0187-1 on the Long Duration Exposure Facility (LDEF). This instrument was on LDEF's trailing edge where relative encounter speeds should be lowest for any non-spinning platform in low Earth orbit (LEO). Approximately 0.6 m(exp 2) of Au substrates yielded 198 impact craters greater than 20 micrometers in diameter. Some 30 percent of the craters were made by natural cosmic dust particles and some 15 percent by man-made objects. Some 50 percent of all features, however, have residues, if any, that are beyond the detection threshold of the SEM-EDXA method used. The purpose of this catalog is to provide detailed evidence and criteria that may be used to arrive at specific particle types on a case-by-case basis and to group such particles into compositional classes. Clearly this is a somewhat interpretative undertaking. For that reason, we encourage and solicit critique and comments from those interested in the systematic analysis of all impact features on LDEF. Horz, Friedrich and Bernhard, Ronald P. Johnson Space Center NASA-TM-104750, S-678, NAS 1.15:104750 ...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723544187
Category :
Languages : en
Pages : 214
Book Description
This catalog contains preliminary analyses of residues of hypervelocity projectiles that encountered gold substrates exposed by instrument A0187-1 on the Long Duration Exposure Facility (LDEF). This instrument was on LDEF's trailing edge where relative encounter speeds should be lowest for any non-spinning platform in low Earth orbit (LEO). Approximately 0.6 m(exp 2) of Au substrates yielded 198 impact craters greater than 20 micrometers in diameter. Some 30 percent of the craters were made by natural cosmic dust particles and some 15 percent by man-made objects. Some 50 percent of all features, however, have residues, if any, that are beyond the detection threshold of the SEM-EDXA method used. The purpose of this catalog is to provide detailed evidence and criteria that may be used to arrive at specific particle types on a case-by-case basis and to group such particles into compositional classes. Clearly this is a somewhat interpretative undertaking. For that reason, we encourage and solicit critique and comments from those interested in the systematic analysis of all impact features on LDEF. Horz, Friedrich and Bernhard, Ronald P. Johnson Space Center NASA-TM-104750, S-678, NAS 1.15:104750 ...
Compositional Analysis and Classification of Projectile Residues in LDEF Impact Craters
Author: Friedrich Hörz
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
LDEF Materials Results for Spacecraft Applications
Author:
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 566
Book Description
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 566
Book Description
LDEF
Author: Arlene S. Levine
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 564
Book Description
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 564
Book Description
LDEF: 69 Months in Space. Third Post-Retrieval Symposium, Part 1
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 564
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 564
Book Description
NASA Conference Publication
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 574
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 574
Book Description
Orbital Debris
Author: Committee on Space Debris
Publisher: National Academies Press
ISBN: 0309587166
Category : Science
Languages : en
Pages : 225
Book Description
Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Publisher: National Academies Press
ISBN: 0309587166
Category : Science
Languages : en
Pages : 225
Book Description
Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 518
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 518
Book Description
Penetration Experiments in Aluminum 1100 Targets Using Soda-lime Glass Projectiles
Author: Friedrich Hörz
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 338
Book Description
The cratering and penetration behavior of annealed aluminum 1100 targets, with thickness varied from several centimeters to ultra-thin foils less than 1 micrometer thick, were experimentally investigated using 3.2 mm diameter spherical soda-lime glass projectiles at velocities from 1 to 7 km/s.
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 338
Book Description
The cratering and penetration behavior of annealed aluminum 1100 targets, with thickness varied from several centimeters to ultra-thin foils less than 1 micrometer thick, were experimentally investigated using 3.2 mm diameter spherical soda-lime glass projectiles at velocities from 1 to 7 km/s.