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437097 (2012 UR91)
Classification: Main-belt Asteroid          SPK-ID: 2437097
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1472998351142283 7.184e-08  
a 3.165457592075978 7.5643e-08 au
q 2.699186210702105 2.4224e-07 au
i 7.874535466059805 1.2863e-05 deg
node 24.56990922879455 5.8691e-05 deg
peri 86.78452284333657 8.2677e-05 deg
M 54.89462442035627 4.9282e-05 deg
tp 2458686.824576091003
(2019-Jul-22.32457609)
0.00028513 TDB
period 2057.089447274989
5.63
7.3736e-05
2.019e-07
d
yr
n .1750045436657552 6.273e-09 deg/d
Q 3.631728973449852 8.6786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      3998 days (10.95 yr)  
   first obs. used      2009-02-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63129  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:07:49  

Additional Information
 Earth MOID = 1.73032 au 
 Jupiter MOID = 1.5589 au 
 T_jup = 3.172 
[ 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 16.7   n/a MPO419192  

437097 (2012 UR91)          Discovered 2009-Feb-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

[ show close-approach data ]
Alternate Designations
 2012 UR91 = 2009 DW33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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