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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01936638993264244 5.8662e-08  
a 2.466322907918141 1.1351e-08 au
q 2.41855913678359 1.3738e-07 au
i .3815632080308582 4.1822e-06 deg
node 218.088196631589 0.0005737 deg
peri 350.1766801402237 0.00058193 deg
M 159.5096362795166 9.6182e-05 deg
tp 2458573.658478567101
(2019-Mar-31.15847857)
0.00037906 TDB
period 1414.72924758228
3.87
9.7667e-06
2.674e-08
d
yr
n .2544656517246864 1.7567e-09 deg/d
Q 2.514086679052692 1.1571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1314  
   data-arc span      9981 days (27.33 yr)  
   first obs. used      1993-09-15  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50781  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:42:04  

Additional Information
 Earth MOID = 1.41046 au 
 Jupiter MOID = 2.44262 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 15.31   n/a E2021B10  

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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