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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 
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Orbital Elements at Epoch 2456920.5 (2014-Sep-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2240829198920201 5.0976e-08  
q 1.764448203273558 1.1733e-07 au
tp 2456988.185206072363
(2014-Nov-26.68520607)
4.4032e-05 TDB
node 224.1392475199513 1.3195e-05 deg
peri 169.9437059033558 1.8184e-05 deg
i 25.08473222131667 6.041e-06 deg
  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
 Jupiter MOID = 2.64881 au 
 T_jup = 3.455 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.598597747521352E-15 -5.953615920990826E-15 -1.713517115019699E-13 2.690521477280268E-14 -1.025060178858601E-13 1.174190453633575E-14
q -5.953615920990826E-15 1.376521223703715E-14 5.213951026524806E-13 -6.477141245883286E-14 2.657460061476184E-13 -2.636188078483062E-14
tp -1.713517115019699E-13 5.213951026524806E-13 1.938829982447691E-9 -2.135923219448265E-11 5.772479807765786E-10 -7.288564602609277E-12
node 2.690521477280268E-14 -6.477141245883286E-14 -2.135923219448265E-11 1.740959776868647E-10 -1.624726660590035E-10 -1.621561419548794E-12
peri -1.025060178858601E-13 2.657460061476184E-13 5.772479807765786E-10 -1.624726660590035E-10 3.306604113798114E-10 -7.802225011120861E-13
i 1.174190453633575E-14 -2.636188078483062E-14 -7.288564602609277E-12 -1.621561419548794E-12 -7.802225011120861E-13 3.649394319542863E-11

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

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