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46655 (1995 UR9)
Classification: Main-belt Asteroid          SPK-ID: 2046655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044158073074136 3.7937e-08  
a 2.388947386994086 8.7472e-09 au
q 2.139503516966163 8.9511e-08 au
i 5.065279389210342 4.3796e-06 deg
node 205.3866232905652 3.4832e-05 deg
peri 34.41772972212715 3.9741e-05 deg
M 57.71495553565249 1.715e-05 deg
tp 2458984.280843257469
(2020-May-14.78084326)
6.4628e-05 TDB
period 1348.678097468641
3.69
7.4074e-06
2.028e-08
d
yr
n .2669280391486231 1.4661e-09 deg/d
Q 2.638391257022011 9.6606e-09 au
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      9150 days (25.05 yr)  
   first obs. used      1995-08-22  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54772  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:51:20  

Additional Information
 Earth MOID = 1.1283 au 
 Jupiter MOID = 2.3578 au 
 T_jup = 3.521 
[ 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 16.12   n/a E2021B10  

46655 (1995 UR9)          Discovered 1995-Oct-16 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 UR9 = 1999 VK146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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