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During its cruise phase, prior to encountering Jupiter, the Cosmic Dust Analyser (CDA) onboard the Cassini spacecraft returned time of flight mass spectra (TOF MS) of two interplanetary dust particles. Both particles were found to be iron-rich, with possible traces of hydrogen, carbon, nickel, chromium, manganese, titanium, vanadium and minor silicates. Carbon, hydrogen, oxygen and potassium are also...
Data from satellite impact experiments and the scanning of recovered spacecraft surfaces and solar cells offer an extended time base for examining, using a consistent methodology, microparticle fluxes at low Earth orbital (LEO) altitudes. Revised estimates of the ratio of natural micrometeorites to space debris at micrometer dimensions at ~500 km altitude show that the debris population is not as...
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