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JPL Small-Body Database Browser
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312820 (2011 SG31)
Classification: Outer Main-belt Asteroid          SPK-ID: 2312820
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583274360522335 6.8368e-08  
a 3.919946902267943 7.3507e-08 au
q 3.299311759770965 3.0072e-07 au
i 4.962283931268352 7.8853e-06 deg
node 175.8499612521865 7.3521e-05 deg
peri 225.6184654916659 7.74e-05 deg
M 307.65906368352 2.3898e-05 deg
tp 2459012.652264130935
(2020-Jun-12.15226413)
0.00019373 TDB
period 2834.775713410755
7.76
7.9737e-05
2.183e-07
d
yr
n .1269941739294972 3.5721e-09 deg/d
Q 4.540582044764922 8.5145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      5496 days (15.05 yr)  
   first obs. used      2004-10-09  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58877  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:05  

Additional Information
 Earth MOID = 2.30968 au 
 Jupiter MOID = .909144 au 
 T_jup = 3.035 
[ 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 15.1   n/a MPO418616  

312820 (2011 SG31)          Discovered 2005-Dec-27 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 SG31 = 2005 YP160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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