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JPL Small-Body Database Browser
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65870 (1997 UK9)
Classification: Main-belt Asteroid          SPK-ID: 2065870
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248208695445333 5.1083e-08  
a 2.273524381594345 1.4339e-08 au
q 1.762388653193607 1.1768e-07 au
i 25.10256873502028 6.0432e-06 deg
node 224.0857181715785 1.3185e-05 deg
peri 169.966107860226 1.8134e-05 deg
M 218.5324914462048 1.5017e-05 deg
tp 2459492.541864096679
(2021-Oct-05.04186410)
5.514e-05 TDB
period 1252.125473090142
3.43
1.1845e-05
3.243e-08
d
yr
n .2875111222771866 2.7199e-09 deg/d
Q 2.784660109995083 1.7562e-08 au
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      10698 days (29.29 yr)  
   first obs. used      1990-10-14  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:47:17  

Additional Information
 Earth MOID = .773397 au 
 Jupiter MOID = 2.64881 au 
 T_jup = 3.455 
[ 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 15.4   n/a MPO417280  

65870 (1997 UK9)          Discovered 1997-Oct-30 by NEAT at Haleakala
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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