Screws 9 and 23 from Surveyor 3 were examined with a scanning electron microscope for micrometeorite impact features. Six craters on one of the screws appear to be low velocity impact craters, and a flux for about 0.12 sq cm was calculated to be 0.005/sq m/sec for particle diameter or = 1 micron. Two interpretations are considered: (1) The impacts were produced by interplanetary particles and the flux indicates that deviation from the normal distribution exists only for particles below 1 micron in diameter. (2) Most of the craters were produced by secondary lunar debris, and the flux represents the upper limit for interplanetary particles.


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    Titel :

    Microcrater investigations on Surveyor 3 material


    Beteiligte:
    Schneider, E. J. (Autor:in) / Neukum, G. (Autor:in) / Mehl, A. (Autor:in) / Fechtig, H. (Autor:in)


    Erscheinungsdatum :

    01.01.1972


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Microcrater populations on Apollo 17 rocks

    Schneider, E. / Hoerz, F. | NTRS | 1974


    The development of microcrater populations on lunar rocks

    Hartung, J. B. / Hoerz, F. / Aitken, F. K. et al. | NTRS | 1973


    Eureca's Hypervelocity Impact Score: Microcrater Flux Decreases But the Large Crater Flux Increases in Specific Directions

    McDonnell, J. A. M. / Lunar and Planetary Institute| National Aeronautics and Space Administration| Universities Space Research Association | British Library Conference Proceedings | 1994


    Unmanned surveyor

    BAER WAYNE GRAF / NASH TIMOTHY JAMES | Europäisches Patentamt | 2019

    Freier Zugriff

    NEO Surveyor

    Randolph, Thomas M. | NTRS | 2011