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390239 (2012 XQ63)
Classification: Main-belt Asteroid          SPK-ID: 2390239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08792527735583686 6.0139e-08  
a 2.634741161240639 3.6629e-08 au
q 2.403080813877716 1.7248e-07 au
i 3.045806283611258 6.3442e-06 deg
node 183.3256282881083 9.9048e-05 deg
peri 6.427289786795422 0.00010431 deg
M 147.541149423169 3.745e-05 deg
tp 2458360.299479339565
(2018-Aug-29.79947934)
0.00015579 TDB
period 1562.087514831064
4.28
3.2575e-05
8.919e-08
d
yr
n .2304608394741143 4.8059e-09 deg/d
Q 2.866401508603562 3.9849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6201 days (16.98 yr)  
   first obs. used      2003-10-19  
   last obs. used      2020-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:42:38  

Additional Information
 Earth MOID = 1.40336 au 
 Jupiter MOID = 2.08928 au 
 T_jup = 3.391 
[ 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 17.0   n/a MPO437597  
rotation period rot_per 7.92 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]

390239 (2012 XQ63)          Discovered 2010-May-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 2012 XQ63 = 2010 JR173 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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