Satellite Ephemeris File Release


Satellite Ephemeris: NEP081

Location: ssd.jpl.nasa.gov/pub/eph/satellites/nio/LINUX_PC/nep081.nio
Size(nio): 299073536 bytes

Enter SATEPHMERGE/13 27-Mar-2009 14:25: 7.912 linked 01-Apr-2008 09:16:24
Merge of back and forward
Integrated orbits - Fit to Earthbased and Voyager data
Ephemeris Version Number: 17
Timespan from JED  2378494.500(30-DEC-1799) to JED  2524594.500(02-JAN-2200)
File Epoch Julian Date: 2447830.50
Master Interval: 4.0000 Days
Equinox Reference Julian Date: 2451545.00
Planetary Ephemeris Number: DE-0421/LE-0421

Bodies on the File:

   Name     Number            GM             NDIV   NDEG   Model
   Triton     801    1.427598140725034E+03      1     15   SATORB
   Nereid     802    0.000000000000000E+00      1     10   SATORB
   Proteu     808    0.000000000000000E+00      8     15   SATORB
   Neptun     899    6.835099502439672E+06      1     10   SATORB
   System            6.836527100580397E+06

Additional Constants on the File:

  AU       1.495978706996262E+08   RADIUS   2.522500000000000E+04
  J802     3.408428530717952E-03   J804    -3.339891759006578E-05
  POLTIM   2.447763500000000E+06   ZACPL8   2.994608612607558E+02
  ZDEPL8   4.340481079071409E+01   DACPL8   0.000000000000000E+00
  DDEPL8   0.000000000000000E+00   WPL8     2.531800000000000E+02
  WDP8     5.363128492000000E+02   GM5      1.267127648000000E+08
  GM6      3.794058520000000E+07   GM7      5.794557000000000E+06
  GM10     1.327132332632381E+11


Chebyshev interpolation error:  1.000 meters

Release to: Horizons/NAIF                      Time: 27-Mar-2009 14:33:24

Preparer: R. A. Jacobson

Comments:
Ephemerides for the Neptunian satellites reported in
the Astronomical Journal (2009).  Orbits were fit to
all data through 2008.