41,931 to 41,940 of 42,335 Results
Feb 1, 1993
Fishbein, E. F.; Elson, L. S.; Froidevaux, L.; Manney, G. L.; Read, W. G.; Waters, J. W.; Zurek, R. W., 1993, "MLS Observations of Stratospheric Waves in Temparature and O3 During the 1992 Southern Winter", https://hdl.handle.net/2014/34966, USA, JPL Open Repository
The Microwave Limb Sounder observed waves in stratospheric temperature and 03 during the 1992 southern winter. |
Feb 1, 1993
Kahn, R. D.; Thurman, S. W.; Edwards, C. D., 1993, "In-Situ Radio-Metric Tracking to Support Navigation for Interplanetary Missions with Multiple Spacecraft", https://hdl.handle.net/2014/34931, Pasadena, California, USA, JPL Open Repository
Doppler and ranging measurements between spacecraft can be obtained only when the ratio of the total received signal power to noise power density at the receiving spacecraft is sufficiently large that reliable signal detection can be achieved within a reasonable time period. |
Feb 1, 1993
Folkner, W.M.; McElrath, T.P., 1993, "Determination of Radio-Frame Position for Earth and Jupiter from Ulysses Encounter Tracking", https://hdl.handle.net/2014/34917, ['AAS/AIAA Space Flight Mechanics', 'Pasadena, CA'], JPL Open Repository
Radio metric tracking data acquired from the Ulysses spacecraft about its encounter with Jupiter in February 1992 allow an accurate measurement of some components of the orbital elements describing the positions of the Earth and Jupiter with respect to extragalactic radio sources... |
Feb 1, 1993
Vaughan, David H.; Rodgers, Arthur H., 1993, "Development of the Second Generation Wide Field Planetary Camera for Hubble Space Telescope", https://hdl.handle.net/2014/34898, USA, JPL Open Repository
No abstract provided |
Feb 1, 1993
Jamnejad, V.; Cwik, T.; Resch, G., 1993, "Cost and Reliability Study for a Large Array of Small Reflector Antennas for JPL/NASA Deep Space Network (DSN)", https://hdl.handle.net/2014/34761, ['IEEE Aerospace Applications Conference', 'Steamboat, Colorado'], JPL Open Repository
A study is performed to estimate the cost of an array of small aperture reflector antennas to be used instead or in conjunction with the current large reflector antennas of the JPL/NASA Deep Space Network (DSN), for servicing present and future NASA missions which involve smaller... |
Feb 1, 1993
Fijany, Amir, 1993, "Fast Time and Space Parallel Algorithms for Solution of Parabolic Partial Differential Equations", https://hdl.handle.net/2014/34955, USA, JPL Open Repository
In this paper, fast time- and Space -Parallel agorithms for solution of linear parabolic PDEs are developed. It is shown that the seemingly strictly serial iterations of the time-stepping procedure for solution of the problem can be completed decoupled. |
Jan 31, 1993
Eldred, D.B.; Gibson, J.S.; Li, Wu-Jeng, 1993, "Identification and Active Disturbance Rejection for the JPL Phase B Test Bed", https://hdl.handle.net/2014/34990, Albuquerque, New Mexico, USA, JPL Open Repository
Active disturbance rejection to minimize optical path length error is illustrated by experimental results from the JPL Phase B Test Bed, which incorporates an interferometric sensor and a controllable trolley mounted on a flexible truss structure. The controller actively isolates... |
Jan 30, 1993
Fanson, J.; Ealey, M., 1993, "Articulating Fold Mirror for the Wide-Field/Planetary Camera II", https://hdl.handle.net/2014/34932, Albuquerque, New Mexico, USA, JPL Open Repository
The Articulating Fold Mirror (AFM) is a space qualified, ultraviolet compatible device that incorporates many advanced features including a highly lightweighted mirror and electrostrictive solid state actuators that provide precise and repeatable open loop performance. The design... |
Jan 30, 1993
Kuo, C-P.; Glaser, R.; Garba, J., 1993, "Coldfinger Motion Suppression Using a Ceramic Applique", https://hdl.handle.net/2014/34800, ['SPIE Conference', 'Albuquerque, New Mexico, USA'], JPL Open Repository
The development of a ceramic applique for the vibration suppression of a cryocooler coldfinger is a part of technology demonstration flight experiment. |
Jan 27, 1993
Pike, W.; George, T.; Fathauer, R.; Ksendzov, A.; Vasquez, R., 1993, "Microstructure and Light-Emission in Stain-Etched Si subscript xGe subscript 1-x Alloys", https://hdl.handle.net/2014/34853, Williamsburg, Virginia, USA, JPL Open Repository
|