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JPL Small-Body Database Browser
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392742 (2012 SS31)
Classification: Main-belt Asteroid          SPK-ID: 2392742
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .08510476483588736 6.2561e-08  
a 2.591726767305734 3.823e-08 au
q 2.371158470255305 1.5291e-07 au
i 4.893953645587679 6.6611e-06 deg
node 136.0832867089482 9.4087e-05 deg
peri 305.388321594627 0.00010868 deg
M 157.5810882788009 5.6124e-05 deg
tp 2457933.410902662617
(2017-Jun-28.91090266)
0.00023005 TDB
period 1523.990458909433
4.17
3.372e-05
9.232e-08
d
yr
n .2362219513221991 5.2266e-09 deg/d
Q 2.812295064356164 4.1483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      5765 days (15.78 yr)  
   first obs. used      2003-08-26  
   last obs. used      2019-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64139  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:10  

Additional Information
 Earth MOID = 1.39106 au 
 Jupiter MOID = 2.35313 au 
 T_jup = 3.409 
[ 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 17.4   n/a MPO437608  
diameter diameter 1.899 km 0.458 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392742 (2012 SS31)          Discovered 2008-Oct-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 SS31 = 2010 FR22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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