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JPL Small-Body Database Browser
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390266 (2012 XD138)
Classification: Main-belt Asteroid          SPK-ID: 2390266
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04547407589607813 1.1906e-07  
a 2.849464579720532 5.4315e-08 au
q 2.719887811159134 3.2977e-07 au
i 11.06293891397625 9.3642e-06 deg
node 250.6536943983186 5.915e-05 deg
peri 322.2484238987143 0.00014016 deg
M 344.1584597474745 0.00012593 deg
tp 2458677.810454343046
(2019-Jul-13.31045434)
0.00061352 TDB
period 1756.884944256572
4.81
5.0233e-05
1.375e-07
d
yr
n .2049081251318563 5.8587e-09 deg/d
Q 2.97904134828193 5.6785e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6466 days (17.70 yr)  
   first obs. used      2001-08-17  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:29:14  

Additional Information
 Earth MOID = 1.71868 au 
 Jupiter MOID = 2.05258 au 
 T_jup = 3.277 
[ 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 15.7   n/a MPO292074  

390266 (2012 XD138)          Discovered 2007-Oct-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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