Mathematics – Logic
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ldef.symp..303m&link_type=abstract
In NASA. Langley Research Center, LDEF: 69 Months in Space. Second Post-Retrieval Symposium, Part 2 p 303-312 (SEE N93-29354 11-
Mathematics
Logic
Cosmic Dust, Foils (Materials), Hypervelocity Impact, Long Duration Exposure Facility, Micrometeoroids, Size Distribution, Space Debris, Craters, French Space Program, Interplanetary Dust, Payloads
Scientific paper
Two experiments within the French Cooperative Payload (FRECOPA) and devoted to the detection of cosmic dust were flown on the Long Duration Exposure Facility (LDEF). A variety of sensors and collecting devices have made possible the study of impact processes on dedicated sensors and on materials of technological interest. Examination of hypervelocity impact features on these experiments gives valuable information on the size distribution and nature of interplanetary dust particles in low-Earth orbit (LEO), within the 0.5-300 micrometer size range. However no crater smaller than 1.5 microns has been observed, thus suggesting a cut-off in the near Earth particle distribution. Chemical investigation of craters by EDX clearly shows evidence of elements (Na, Mg, Si, S, Ca, and Fe) consistent with cosmic origin. However, remnants of orbital debris have been found in a few craters; this can be the result of particles in eccentric orbits about the Earth and of the 8 deg offset in the orientation of LDEF. Crater size distribution is compared with results from other dust experiments flown on LDEF and with current models. Possible origin and orbital evolution of micrometeoroids is discussed. Use of thin foil detectors for the chemical study of particle remnants looks promising for future experiments.
No associations
LandOfFree
Micrometeoroids and debris on LDEF does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Micrometeoroids and debris on LDEF, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Micrometeoroids and debris on LDEF will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1373409