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4865 Sor (1988 UJ)
Classification: Main-belt Asteroid          SPK-ID: 2004865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06167240931551927 2.1201e-08  
a 3.047361363071512 1.4057e-08 au
q 2.859423245755867 6.9043e-08 au
i 10.09664748241707 5.6454e-07 deg
node 43.2345608987109 2.0945e-06 deg
peri 68.75365759724833 1.176e-05 deg
M 306.307715575259 8.5787e-06 deg
tp 2459490.296905425908
(2021-Oct-02.79690543)
4.5939e-05 TDB
period 1943.051726539203
5.32
1.3444e-05
3.681e-08
d
yr
n .1852755616759627 1.282e-09 deg/d
Q 3.235299480387157 1.4924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2345  
   data-arc span      15859 days (43.42 yr)  
   first obs. used      1977-10-08  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:52:31  

Additional Information
 Earth MOID = 1.89526 au 
 Jupiter MOID = 1.89015 au 
 T_jup = 3.211 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.51   n/a MPCxxxxx  

4865 Sor (1988 UJ)          Discovered 1988-Oct-18 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 UJ = 1977 TZ5 = 1990 BB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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