2,648 research outputs found
Data analyses in connection with the national geodetic satellite program
Station Cartesian coordinates in SAO systems using Geos
Use of altimetry data in a sampling-function approach to the geoid
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)
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
Gravity field determination computer program for Standard Earth calculatio
Geodetic research studies Final technical report
Geopotential surface measurement of ocean using altimeter dat
Geodetic satellite results during 1967
Geodetic satellite photography, tracking, orbit calculations, and related studies for 196
Guiding of Rydberg atoms in a high-gradient magnetic guide
We study the guiding of Rb 59D 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 -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
Possible geopotential improvement from satellite altimetr
The procurement and evaluation of a prototype laser satellite-tracking system Final report, 1 Jan. 1967 - 30 Sep. 1968
Pulsed ruby laser satellite tracking syste
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