Micrometeorite Measurements from the Midas II Satellite (1960)

Item

Title
Micrometeorite Measurements from the Midas II Satellite (1960)
Date
1961
Index Abstract
Coming Soon
Photo Quality
Not Needed
Report Number
AFCRL 1053
Creator
Soberman, R. K.
Lucca, L. Della
Corporate Author
Air Force Cambridge Research Laboratories
Laboratory
Photochemistry Laboratory
Extent
15
Identifier
AD0268556
Distribution Classification
1
DoD Project
7667
DoD Task
76046
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Date Modified
Scanned by request 9/22/2008 submitted by United States Air Force (Government Agency - Domestic)
Abstract
Five micrometeorite sensing devices were carried on board the Midas II (1960 ?1) satellite which was launced into an approximately 500-km circular equatorial orbit on 24 May 1960. The five devices consisted of three acoustic detectors and two wire-grid detectors. Data were obtained for four partial orbits. These data were recorded in real time. There were no breaks in the wire grids which could record impacts of particles larger than 10 microns. Sixty-seven impacts were recorded on the acoustic detectors which had a momentum threshold of 3x10^-4 gm cm sec^-1 and a total area of 0.0686 square meters. Thes results indicate a flux pf 0.25 m^-2sec^-1 of particles 5 microns in diameter or larger if one assumes a mean velocity of 15 km sec^-1 and a density of 3 gm cm^-3 for the particles. The discrepancy between acoustic and wire-grid data will be discussed. These results will be compared with those obtained from other stellite measurements.
Report Availability
Full text available
Date Issued
1961-11
Provenance
IIT
Type
report
Format
1 online resource
Media
AFCRL1053.pdf

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