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31145 (1997 UK)
Classification: Main-belt Asteroid          SPK-ID: 2031145
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01914090990370286 5.8622e-08  
a 2.467287152835627 1.1613e-08 au
q 2.420061031736636 1.3716e-07 au
i .3814559105758884 4.1886e-06 deg
node 218.1110325472345 0.00058168 deg
peri 351.1421837804078 0.0005906 deg
M 107.6352787182312 0.00010068 deg
tp 2458577.266425916432
(2019-Apr-03.76642592)
0.00039675 TDB
period 1415.55899222359
3.88
9.9943e-06
2.736e-08
d
yr
n .2543164940335722 1.7956e-09 deg/d
Q 2.514513273934617 1.1836e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1283  
   data-arc span      9897 days (27.10 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:02:39  

Additional Information
 Earth MOID = 1.41287 au 
 Jupiter MOID = 2.44347 au 
 T_jup = 3.486 
[ 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 15.3   n/a MPO474163  

31145 (1997 UK)          Discovered 1997-Oct-19 by Klet at Klet
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 UK = 1993 RL15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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