42,161 to 42,170 of 42,320 Results
Jan 1, 1993
Weissman, P., 1993, "The Discovery of 1992 QB subscript 1", https://hdl.handle.net/2014/35343, JPL Open Repository
This paper describes the discovery of QB subscript 1, which is in an orbit beyond Pluto. |
Jan 1, 1993
Krisher, T.P., 1993, "Letter to the Editor on Robert Yaes's Letter", https://hdl.handle.net/2014/35493, Physics Today, JPL Open Repository
In his letter on page 13 of the March 1993 issue, Robert Yaes raised the question of whether the existence of the cosmic microwave background (CMB), now observed so precisely with COBE, is compatible with the principle of relativity: The laws by which the states of physical syste... |
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... |
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. |
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. |
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. |
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. |
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 |
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. |
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... |