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JPL Small-Body Database Browser
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392981 (2012 XU49)
Classification: Main-belt Asteroid          SPK-ID: 2392981
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1303343632738707 6.5705e-08  
a 2.780680474460523 8.3518e-08 au
q 2.418262255353626 2.075e-07 au
i 11.09669044467168 6.8831e-06 deg
node 86.52753648500027 4.8442e-05 deg
peri 232.3262855048523 6.9063e-05 deg
M 231.2931648440409 4.111e-05 deg
tp 2459206.013971533479
(2020-Dec-22.51397153)
0.00018386 TDB
period 1693.655426208805
4.64
7.6304e-05
2.089e-07
d
yr
n .2125579940459606 9.5763e-09 deg/d
Q 3.14309869356742 9.4404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      7407 days (20.28 yr)  
   first obs. used      1998-12-22  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56302  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:57:25  

Additional Information
 Earth MOID = 1.42161 au 
 Jupiter MOID = 2.14186 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 16.2   n/a MPO434458  

392981 (2012 XU49)          Discovered 2009-Jan-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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