Satellite Ephemeris File Release Satellite Ephemeris: NEP050 Location: ssd.jpl.nasa.gov/pub/eph/satellites/nio/LINUX_PC/nep050.nio Size(nio): 208712704 bytes Enter SATEPHGEN/17 31-Mar-2007 10:55:37.345 linked 02-Jan-2007 11:45:40 Voyager, HST, and Astrometric data solution - NEP050 Ephemeris Version Number: 17 Timespan from JED 2447684.500(07-JUN-1989) to JED 2469440.500(30-DEC-2048) File Epoch Julian Date: 2447757.00 Master Interval: 4.0000 Days Equinox Reference Julian Date: 2451545.00 Planetary Ephemeris Number: DE-0405/LE-0405 Bodies on the File: Name Number GM NDIV NDEG Model Naiad 803 0.000000000000000E+00 8 15 ROCKS Thalas 804 0.000000000000000E+00 8 15 ROCKS Despin 805 0.000000000000000E+00 8 15 ROCKS Galate 806 0.000000000000000E+00 8 15 ROCKS Lariss 807 0.000000000000000E+00 8 15 ROCKS Proteu 808 0.000000000000000E+00 8 15 ROCKS Neptun 899 6.835107010942784E+06 1 10 CHEBY System 6.836534878891925E+06 Additional Constants on the File: AU 1.495978706094335E+08 RADIUS 2.522500000000000E+04 J802 3.410000000000000E-03 J803 0.000000000000000E+00 J804 -3.500000000000000E-05 POLTIM 2.447763500000000E+06 ZACPL8 2.992700000000000E+02 ZDEPL8 4.295000000000000E+01 DACPL8 6.263300000000001E-01 DDEPL8 -6.052000000000000E-02 WPL8 2.531800000000000E+02 WDP8 5.363128492000000E+02 RAREF8 2.989525829488086E+02 DEREF8 4.331345012848936E+01 ZPRPL8 5.231800995129119E+01 GM1300 1.328836807306296E+11 801GM 1.427867949141134E+03 802GM 0.000000000000000E+00 Chebyshev interpolation error: 250 meters Release to: Horizons/NAIF Time: 31-Mar-2007 10:59: 8 Preparer: R. A. Jacobson Comments: Extension of original NEP050 ephemeris for Neptune inner satellites. Chebyshev file required because the extended rock model is not universially implemented.