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390203 (2012 XQ)
Classification: Main-belt Asteroid          SPK-ID: 2390203
[ 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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08832518877778772 5.2525e-08  
a 2.679383815189339 2.7998e-08 au
q 2.442726733904592 1.5137e-07 au
i 1.416364825441869 5.0601e-06 deg
node 267.4321218542251 0.00028198 deg
peri 155.0790069900086 0.00028594 deg
M 253.5779928993438 4.9134e-05 deg
tp 2459474.065183991569
(2021-Sep-16.56518399)		 0.00022315 TDB
period 1601.956877920166
4.39		 2.5109e-05
6.874e-08		 d
yr
n .2247251501971708 3.5223e-09 deg/d
Q 2.916040896474087 3.0471e-08 au
   Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      6183 days (16.93 yr)  
   first obs. used      2003-09-18  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:42:56  

Additional Information
 Earth MOID = 1.45581 au 
 Jupiter MOID = 2.32843 au 
 T_jup = 3.371 
[ 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 17.2   n/a MPO437597  

390203 (2012 XQ)          Discovered 2003-Sep-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

Alternate Designations
 2012 XQ = 2009 AN18 = 2012 US162 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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