Ephemerides of the major Neptunian satellites determined from earth-based astrometric and Voyager imaging observationsThe Voyager project used Neptunian satellite ephemerides to support both navigation and acquisition of scientific data. The development of postencounter ephemerides for the satellites Triton, Nereid, and 1989N1 is discussed. Primary results are the final set of model parameters which generate orbits that best fit both the earth-based satellite observations and data acquired by Voyager. The ephemerides are compared with those generated preencounter, and the accuracy of the final ephemerides is assessed. Mean orbital elements are also provided as a geometrical representation for the satellite orbits.
Document ID
19900065918
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jacobson, R. A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lewis, G. D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Owen, W. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Riedel, J. E. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Roth, D. C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Synnott, S. P. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)