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390685 (2002 UR44)
Classification: Main-belt Asteroid          SPK-ID: 2390685
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2611418223565325 7.2575e-08  
a 2.682992187875248 2.376e-08 au
q 1.982350718565166 2.0231e-07 au
i 12.3154440586076 7.291e-06 deg
node 211.0529438980881 2.7304e-05 deg
peri 141.7569647894635 3.0333e-05 deg
M 21.81320527695593 1.1036e-05 deg
tp 2458903.237702374707
(2020-Feb-23.73770237)
4.8606e-05 TDB
period 1605.194041890572
4.39
2.1323e-05
5.838e-08
d
yr
n .2242719513062718 2.9791e-09 deg/d
Q 3.383633657185331 2.9965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6620 days (18.12 yr)  
   first obs. used      2001-05-25  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .541  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:07:16  

Additional Information
 Earth MOID = .994294 au 
 Jupiter MOID = 2.1585 au 
 T_jup = 3.294 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO476839  

390685 (2002 UR44)          Discovered 2002-Oct-04 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

Alternate Designations
 2002 UR44 = 2011 WB114 = 2011 WG100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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