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JPL Small-Body Database Browser
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390057 (2012 UR87)
Classification: Main-belt Asteroid          SPK-ID: 2390057
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06077337943565549 8.0741e-08  
a 2.402462761309546 2.6418e-08 au
q 2.256456980336448 1.9209e-07 au
i 7.503499260048602 7.318e-06 deg
node 47.95042405107141 7.0282e-05 deg
peri 271.6610468216113 0.00010896 deg
M 350.140787515799 7.6067e-05 deg
tp 2458637.749731766832
(2019-Jun-03.24973177)
0.00028712 TDB
period 1360.139408451566
3.72
2.2434e-05
6.142e-08
d
yr
n .2646787511361336 4.3656e-09 deg/d
Q 2.548468542282644 2.8023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      6046 days (16.55 yr)  
   first obs. used      2003-04-09  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59618  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 12:57:32  

Additional Information
 Earth MOID = 1.25804 au 
 Jupiter MOID = 2.60669 au 
 T_jup = 3.511 
[ 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 17.6   n/a MPO440683  

390057 (2012 UR87)          Discovered 2007-Apr-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

Alternate Designations
 2012 UR87 = 2007 GO53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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