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42,161 to 42,170 of 42,318 Results
Improved Ephemerides of Pluto
Jan 1, 1993
Standish, E., 1993, "Improved Ephemerides of Pluto", https://hdl.handle.net/2014/35648, UNKNOWN, JPL Open Repository
The history of the Pluto ephemerides created at JPL is given. The uncertainties of present and possible future ephemerides are illustrated, and it is shown how rapidly the error grows for any present-day ephemeris of Pluto which is extrapolated into the future - tens of thousands...
Detection of Stellar Variability in the Central Parsec of the Galaxy
Jan 1, 1993
Tamura, M.; Werner, M.; Becklin, E.; Phinney, E., 1993, "Detection of Stellar Variability in the Central Parsec of the Galaxy", https://hdl.handle.net/2014/35617, JPL Open Repository
This paper describes the results of a search for time variability of stars in the central 1 pc region of the galaxy through K-band imaging and photometry.
The Impactor Flux in the Pluto-Charon System
Jan 1, 1993
Weissman, P.; Stern, S., 1993, "The Impactor Flux in the Pluto-Charon System", https://hdl.handle.net/2014/35787, JPL Open Repository
This paper presents estimations of the current impact rates of comets on Pluto and Charon.
Thermal Imbalance Force Modeling for GPS Satellites Using the Finite Element Method
Jan 1, 1993
Vigue, Y.; Schutz, B.; Abusali, P., 1993, "Thermal Imbalance Force Modeling for GPS Satellites Using the Finite Element Method", https://hdl.handle.net/2014/35893, JPL Open Repository
This paper presents methods of analyzing the perturbation due to thermal radiation and determining its effects on the long term orbital behavior of GPS satellites.
Fabrication and Characterization of Planar Integrated Schottky Devices for Very High Frequency Mixers
Jan 1, 1993
Mehdi, I.; Siegel, P.; Mazed, M., 1993, "Fabrication and Characterization of Planar Integrated Schottky Devices for Very High Frequency Mixers", https://hdl.handle.net/2014/35930, UNKNOWN, JPL Open Repository
Many millimeter-wave mixers and frequency multipliers today still employ a whisker contacted Schottky diode as the nonlinear device.
The Landers Earthquake, 28 June 1992: Seeing Calfornia Move with GPS Satellites
Jan 1, 1993
Blewitt, G.; Bock, Y., 1993, "The Landers Earthquake, 28 June 1992: Seeing Calfornia Move with GPS Satellites", https://hdl.handle.net/2014/36456, n/a, JPL Open Repository
Imperceptible to human senses, California continues to deform every day at a rate comparable to the growth of fingernails. Convection in the mantle under the Earth's solid crust forces continental-size
An Algorithm for State-Space Frequency Domain Identification Without Windowing Distrtions
Jan 1, 1993
Bayard, D. S., 1993, "An Algorithm for State-Space Frequency Domain Identification Without Windowing Distrtions", https://hdl.handle.net/2014/36637, UNKNOWN, JPL Open Repository
An algorithm is presented for identifying state space models from frequency domain data. The main advantage of this approach is that it avoids windowing distortions associated with other frequency domain methods.
Frequency Swept Diode-pumped Single Frequency TM,Ho:YLiF Laser for spaceborne Doppler Lidar
Jan 1, 1993
McGuckin, B.T.; Menzies, R.T.; C.Esproles, 1993, "Frequency Swept Diode-pumped Single Frequency TM,Ho:YLiF Laser for spaceborne Doppler Lidar", https://hdl.handle.net/2014/36562, Anaheim, California, USA, JPL Open Repository
Optical heterodyne experiments involving the photomixing of two single frequency, deode-pumped thulium holmium yttrium lithium flouride lasers are described. Operated in external frquency stabilization loops, the lasers exhibit 1MHz short term stability, and are photomixed and of...
Retrieval of Surface Directional Reflectance and Hemispherical Albedo Using Multi-angle Measurements, I. Ground Level Observations
Jan 1, 1993
Martonchik, J. V., 1993, "Retrieval of Surface Directional Reflectance and Hemispherical Albedo Using Multi-angle Measurements, I. Ground Level Observations", https://hdl.handle.net/2014/36612, UNKNOWN, JPL Open Repository
Knowledge of the directional reflectance properties of natural surfaces such as soils and vegetation canopies is essential for classification studies and canopy model inversions. Atmospheric correction schemes, using various levels of approximation, are described to retrieve surf...
Compact Disc Write Once (CD-WO)
Jan 1, 1993
Hyon, J., 1993, "Compact Disc Write Once (CD-WO)", https://hdl.handle.net/2014/36499, BYTE Magazine, JPL Open Repository
Compact Disc - Read Only Memory (CD-ROM) has fulfilled its promise of becoming a dominant data storage and distribution media of the 90's.
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