NEAR orbital elements

Dale Ireland (direland@drdale.com)
Mon, 25 Jan 1999 20:49:27 -0800

For those interested in ploting the position of the NEAR space craft

Orbital elements for NEAR
Epoch:  UTC: 1999/01/20  17:00:00.000000
A.1 Full Julian Date: 2451199.2086925272
Coordinate frame: Sun-centered Mean-of-J2000.0 Ecliptic
Spacecraft ____________________________________________________
Cartesian Elements:              Spherical Elements:
  X: 226292506.727       km             R: 257372783.56212724 km
  Y: -120548410.58392132 km       Right Asc: 331.95530005906964 deg
  Z: 22372568.547633992  km     Declination: 4.9868272240303648 deg
Vx: 6.7300889553836784  km/s           V: 20.567075466991972 km/s
Vy: 19.179999559541936  km/s       Azimuth: 80.416855637945152 deg
Vz: 3.1365766073119888  km/s     Vert. FPA: 97.806324944417248 deg
                                Right Asc V: 70.664487817566312 deg
                              Declination V: 8.772108227871376  deg
Keplerian Elements:
  a: 218176154.35330396  km       Ecc. Anom: 216.63919301413524 deg
  e: 0.223895522219149            Mean Anom: 224.29476882772024 deg
  i: 10.792249662567036  deg      Long Peri: 122.8326469256289  deg
  N: 304.71305317173192  deg (longitude of node)
  w: 178.1195937538974   deg (argument of perihelion)
TA: 209.54093225193748  deg (true anomaly at epoch)

                      Arg. Lat: 27.6605260058344        deg
                     True Long: 332.37357917756652      deg
           Radius at perifocus: 169327490.33860532      km
         Velocity at perifocus: 30.971643669557424      km/s
            Radius at apofocus: 267024818.36800264      km
          Velocity at apofocus: 19.639937314741144      km/s
                   Mean motion: 0.00038861429868532832  deg/min
                        Period: 643.31137800575848      days
                        Period: 15439.473072138204      hours
                        Period: 926368.38432829216      minutes

Dale Ireland
Astronomy Page http://www.drdale.com
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