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1983 Bok (1975 LB)
Classification: Main-belt Asteroid          SPK-ID: 2001983
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09827128161386965 5.905e-08  
a 2.621739279388162 1.9114e-08 AU
q 2.364097600345264 1.5144e-07 AU
i 9.407368379284573 6.4164e-06 deg
node 23.5988658747525 3.353e-05 deg
peri 345.4667000186669 4.4342e-05 deg
M 343.1747542837904 3.1712e-05 deg
tp 2456872.967218586211
(2014-Aug-03.46721859)
0.000137 JED
period 1550.538941960427
4.25
1.6956e-05
4.642e-08
d
yr
n .2321773354139905 2.539e-09 deg/d
Q 2.87938095843106 2.0992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      22589 days (61.85 yr)  
   first obs. used      1950-09-13  
   last obs. used      2012-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57508  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:20:04  

Additional Information
 Earth MOID = 1.36388 AU 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO234851  

1983 Bok (1975 LB)          Discovered 1975-Jun-09 by Roemer, E. at Tucson
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 LB = 1950 RV = 1963 UJ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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