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Micrometeoroid Impact Data, ASCII


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)

Time span: 1974-12-19 to 1980-01-02


This data set (74-097A-12B) is an ASCII version, converted by NSSDC from the originally-submitted data set "Micrometeoroid Impact Data" (74-097A-12A). The original data were written by a PDP/10, in a single binary file.

The file has 438 physical records. Of these, 203 records provide the time intervals when the experiment was active. The remaining 235 records (of 47 words each) describe the 235 micrometeoroid impact events that were registered. Each such record provides the impact time, the sensor number (0 for the ecliptic plane sensor, and 1 for the south sensor), velocity of impact, mass, density, mass-spectrum, and a number of derived orbital characteristics of the micrometeoroid.

Alternate Names


    • Space Physics: Zodiacal Light/Interplanet Dust
    • Planetary Science: Small Bodies


    • 74-097A-12B

    Additional Information



    Questions and comments about this data collection can be directed to: Dr. H. Kent Hills



    NameRoleOriginal AffiliationE-mail
    Dr. W. I. RimplerData ProviderMax-Planck-Institut fur Astronomie

    Selected References

    • Schmidt, K. D., and E. Gruen, The distribution of orbital elements of interplanetary dust in the inner solar system as detected by the Helios spaceprobe, Space Res., 19, 439-442, 1979. (Proc. of the Open Meet. of the Working Groups on Phys. Sci., Innsbruck, Austria, May 29-June 10, 1978).
    • Schmidt, K. D., and E. Gruen, Orbital elements of micrometeoroids detected by the Helios 1 space probe in the inner solar system, in Solid Particles in the Solar System, 321-324, I. Halliday, doi:10.1017/S0074180900066997, 1980.
    • Pailer, N., and E. Gruen, The penetration limit of thin films, Planet. Space Sci., 28, No. 3, 321-331, doi:10.1016/0032-0633(80)90021-5, 1980.
    • Gruen, E., et al., Orbital and physical characteristics of micrometeoroids in the inner solar system as observed by Helios 1, Planet. Space Sci., 28, No. 3, 333-349, doi:10.1016/0032-0633(80)90022-7, 1980.
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