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Atmospheric Density Values from Satellite Drag Measurements


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

Time span: 1959-02-23 to 1970-03-20


This microfiche data set of atmospheric density values, computed from the atmospheric drag on Vanguard 2, was prepared at NSSDC from the Smithsonian Astrophysical Observatory Special Reports numbered 100, 171, 326, and 348 (NSSDC TRF B10138, B05917, B10163, and 15428, respectively). These density values were computed for standard heights of 563 and 600 km. The data are primarily in tabular form. There are some summary graphs for comparing changes in density as a function of diurnal and semiannual temperature means, 10.7-cm solar flux, and daily geomagnetic index. The tabulated density values are listed chronologically. Some of the other parameters given are the observed rate of change of anomalistic period, the acceleration due to solar radiation pressure, the perigee height, and the nighttime temperature computed from the perigee value, using a Jacchia model of the diurnal temperature variation.

Alternate Names


    • Earth Science: Atmospheric Dynamics


    • 59-001A-02A

    Additional Information



    Questions and comments about this data collection can be directed to: Coordinated Request and User Support Office



    NameRoleOriginal AffiliationE-mail
    Dr. Luigi G. JacchiaData ProviderSmithsonian Astrophysical Observatory
    Dr. Jack W. SloweyGeneral ContactSmithsonian Astrophysical Observatory
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