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71817 (2000 UR12)
Classification: Main-belt Asteroid          SPK-ID: 2071817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05888932394998009 3.7173e-08  
a 2.315243782846347 1.0859e-08 au
q 2.17890064169513 8.6421e-08 au
i 6.725563385015588 6.3811e-06 deg
node 10.00034560752607 3.3165e-05 deg
peri 105.0590107332106 6.9483e-05 deg
M 128.8440793428594 5.8195e-05 deg
tp 2458539.972591339146
(2019-Feb-25.47259134)
0.00020835 TDB
period 1286.748044329873
3.52
9.0527e-06
2.478e-08
d
yr
n .2797750512125198 1.9683e-09 deg/d
Q 2.451586923997563 1.1498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      798  
   data-arc span      9323 days (25.52 yr)  
   first obs. used      1993-10-21  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:33:04  

Additional Information
 Earth MOID = 1.20619 au 
 Jupiter MOID = 2.58371 au 
 T_jup = 3.570 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456538.5 (2013-Sep-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05878963951263962 3.7437e-08  
q 2.179349507908218 8.7231e-08 au
tp 2455967.851820341615
(2012-Feb-10.35182034)
0.00021107 TDB
node 10.03397146539505 3.3174e-05 deg
peri 105.3952573717847 6.9325e-05 deg
i 6.725032341075425 6.3795e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      798  
   data-arc span      9323 days (25.52 yr)  
   first obs. used      1993-10-21  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:33:04  

Additional Information
 Jupiter MOID = 2.58371 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.401563711016306E-15 -3.242521303248967E-15 2.619583993457404E-12 -4.10881331315378E-15 7.733879078279905E-13 -1.380940987681639E-15
q -3.242521303248967E-15 7.609315822181106E-15 -6.547480195547584E-12 9.630366652214401E-15 -1.917458653957506E-12 3.144051936027317E-15
tp 2.619583993457404E-12 -6.547480195547584E-12 4.455101351670521E-8 -8.474009686728391E-11 1.285376484121024E-8 1.147703495616111E-11
node -4.10881331315378E-15 9.630366652214401E-15 -8.474009686728391E-11 1.100531318398003E-9 -1.11687762035817E-9 -7.824477051098812E-12
peri 7.733879078279905E-13 -1.917458653957506E-12 1.285376484121024E-8 -1.11687762035817E-9 4.805986075677526E-9 1.108971047049729E-11
i -1.380940987681639E-15 3.144051936027317E-15 1.147703495616111E-11 -7.824477051098812E-12 1.108971047049729E-11 4.069799629344362E-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 15.5   n/a MPO432271  

71817 (2000 UR12)          Discovered 2000-Oct-25 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 UR12 = 2002 ER40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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