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385073 (2012 UA81)
Classification: Main-belt Asteroid          SPK-ID: 2385073
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03329998073384037 5.7438e-08  
a 2.749677618606671 3.7513e-08 au
q 2.658113406882797 1.64e-07 au
i 1.55885962930978 9.296e-06 deg
node 242.1692474896611 0.00020764 deg
peri 288.62695005463 0.00024688 deg
M 147.8844521422698 0.00013189 deg
tp 2458516.366100154445
(2019-Feb-01.86610015)
0.00061184 TDB
period 1665.40971938999
4.56
3.4081e-05
9.331e-08
d
yr
n .2161630233140837 4.4236e-09 deg/d
Q 2.841241830330545 3.8762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      6548 days (17.93 yr)  
   first obs. used      2001-04-30  
   last obs. used      2019-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56844  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:03:59  

Additional Information
 Earth MOID = 1.66285 au 
 Jupiter MOID = 2.12417 au 
 T_jup = 3.345 
[ 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 17.1   n/a MPO434393  

385073 (2012 UA81)          Discovered 2008-Nov-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21

Alternate Designations
 2012 UA81 = 2010 GF137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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