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JPL Small-Body Database Browser
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347408 (2012 SJ31)
Classification: Main-belt Asteroid          SPK-ID: 2347408
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037624808374336 4.7199e-08  
a 2.410825163032698 1.7883e-08 au
q 1.919589446947846 1.1757e-07 au
i .2340463637107649 7.2322e-06 deg
node 261.1106269201808 0.0016326 deg
peri 64.90309636689872 0.0016327 deg
M 44.38099623070945 2.1984e-05 deg
tp 2458831.945036263753
(2019-Dec-14.44503626)
8.2722e-05 TDB
period 1367.247067407235
3.74
1.5213e-05
4.165e-08
d
yr
n .2633028137940586 2.9297e-09 deg/d
Q 2.902060879117552 2.1527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      7947 days (21.76 yr)  
   first obs. used      1997-10-03  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67638  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:33:32  

Additional Information
 Earth MOID = .907824 au 
 Jupiter MOID = 2.4361 au 
 T_jup = 3.491 
[ 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 17.6   n/a MPO434189  

347408 (2012 SJ31)          Discovered 2008-Jun-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2012 SJ31 = 2007 ER7 = 2008 OL6 = 2011 GL50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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