Loading...
Please wait, while we are loading the content...
Similar Documents
Deriving the velocity distribution of meteoroids from the measured meteoroid impact directionality on the various ldef surfaces
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zook, Herbert A. |
| Copyright Year | 1992 |
| Description | Because of spacecraft orbital motion about the Earth, a much higher flux of meteoroids is expected to strike spacecraft surfaces that face in the direction of spacecraft motion (apex direction) than would strike apex facing or trailing edge surfaces. Impact velocities are also higher on apex facing surfaces compared to antapex facing surfaces which futher increases the apex/antapex ratio of spatial density of impact craters of a given size. Measurements of the areal densities of impact craters on the different LDEF surfaces should give important clues about the velocity distribution, and therefore the origins, of meteoroids. Preliminary results appear to support the meteoroid velocity distributions derived by Erickson and by Kessler, which would lead to a mean impact velocity on the LDEF spacecraft of about 19 km/s. |
| File Size | 574370 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920014079 |
| Archival Resource Key | ark:/13960/t41s1qf4z |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Meteorite Collisions Craters Meteoroid Concentration Trailing Edges Orbits Velocity Distribution Meteoroids Long Duration Exposure Facility Spacecraft Motion Hypervelocity Impact Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
