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392974 (2012 XK40)
Classification: Main-belt Asteroid          SPK-ID: 2392974
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07571480962122422 7.7117e-08  
a 2.618546736494884 4.002e-08 au
q 2.420283968856896 2.1354e-07 au
i 1.9573157321533 6.344e-06 deg
node 262.6106490738514 0.00027325 deg
peri 318.7359145630942 0.00027838 deg
M 137.3411877983346 5.4257e-05 deg
tp 2458410.044435557704
(2018-Oct-18.54443556)
0.00023229 TDB
period 1547.707622212688
4.24
3.5481e-05
9.714e-08
d
yr
n .2326020721441716 5.3324e-09 deg/d
Q 2.816809504132872 4.305e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      5765 days (15.78 yr)  
   first obs. used      2003-09-22  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55394  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:23  

Additional Information
 Earth MOID = 1.41208 au 
 Jupiter MOID = 2.15989 au 
 T_jup = 3.401 
[ 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 16.8   n/a MPO437609  

392974 (2012 XK40)          Discovered 2007-Oct-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 XK40 = 2011 SG94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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