2,624 research outputs found

    Data analyses in connection with the national geodetic satellite program

    Get PDF
    Station Cartesian coordinates in SAO systems using Geos

    Use of altimetry data in a sampling-function approach to the geoid

    Get PDF
    Problems associated with using an altimetry sampling function approach to the geoid are examined. They include: (1) conventent mathematical representation of short-wavelength (eventually approximately 1 deg) features of the geoid or geopotential, (2) utilization of detailed data from only part of the globe (i.e., the oceans) (3) application of appropriate formalism to relate the sea-level equipotential below the atmospheric mass to the external potential above the atmosphere, (4) mathematical applicability of an adopted geopotential representation on the surface of the physical geoid

    Kohoutek, photometric photography experiment (S233)

    Get PDF
    The final results of the Skylab 4 experiment S233, Kohoutek photometric photography experiment, which undertook a series of visible light photographs suitable for photometry and for a photographic history of Comet Kohoutek are described. The experiment concept, the data reduction method, and the results obtained are discussed

    Data analyses in connection with the National Geodetic Satellite program Quarterly progress report, 1 Apr. - 30 Jun. 1968

    Get PDF
    Gravity field determination computer program for Standard Earth calculatio

    Geodetic research studies Final technical report

    Get PDF
    Geopotential surface measurement of ocean using altimeter dat

    Geodetic satellite results during 1967

    Get PDF
    Geodetic satellite photography, tracking, orbit calculations, and related studies for 196

    Guiding of Rydberg atoms in a high-gradient magnetic guide

    Full text link
    We study the guiding of 87^{87}Rb 59D5/2_{5/2} Rydberg atoms in a linear, high-gradient, two-wire magnetic guide. Time delayed microwave ionization and ion detection are used to probe the Rydberg atom motion. We observe guiding of Rydberg atoms over a period of 5 ms following excitation. The decay time of the guided atom signal is about five times that of the initial state. We attribute the lifetime increase to an initial phase of ll-changing collisions and thermally induced Rydberg-Rydberg transitions. Detailed simulations of Rydberg atom guiding reproduce most experimental observations and offer insight into the internal-state evolution

    Possible geopotential improvement from satellite altimetry

    Get PDF
    Possible geopotential improvement from satellite altimetr
    • …
    corecore