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JPL Small-Body Database Browser
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390260 (2012 XU131)
Classification: Main-belt Asteroid          SPK-ID: 2390260
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051014019093945 8.7549e-08  
a 2.565601187441549 4.4863e-08 au
q 2.295952905901035 2.0617e-07 au
i 4.529168673035985 7.3521e-06 deg
node 114.7590789216477 9.752e-05 deg
peri 238.7039573267546 0.00010644 deg
M 270.0253580903081 4.6871e-05 deg
tp 2458975.645528993482
(2020-May-06.14552899)
0.00019979 TDB
period 1501.005033987314
4.11
3.9371e-05
1.078e-07
d
yr
n .2398393022331747 6.2909e-09 deg/d
Q 2.835249468982063 4.9578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5350 days (14.65 yr)  
   first obs. used      2003-07-25  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53903  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:59:05  

Additional Information
 Earth MOID = 1.29335 au 
 Jupiter MOID = 2.55745 au 
 T_jup = 3.420 
[ 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 16.8   n/a MPO472011  
rotation period rot_per 1.78 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. 237, A19.]

390260 (2012 XU131)          Discovered 2008-Dec-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

Alternate Designations
 2012 XU131 = 2008 XJ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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