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JPL Small-Body Database Browser
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185137 (2006 SG121)
Classification: Main-belt Asteroid          SPK-ID: 2185137
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438089074059725 5.0542e-08  
a 3.085988195993711 3.216e-08 au
q 2.642195605260127 1.5472e-07 au
i 14.74823065646017 5.5005e-06 deg
node 176.9217537456246 2.2498e-05 deg
peri 257.3022310918996 2.9299e-05 deg
M 149.8607038640274 1.931e-05 deg
tp 2458176.219387818990
(2018-Feb-26.71938782)
0.00010279 TDB
period 1980.112282499385
5.42
3.0953e-05
8.474e-08
d
yr
n .1818078717968418 2.842e-09 deg/d
Q 3.529780786727294 3.6785e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1996-01-19  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59254  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:57:54  

Additional Information
 Earth MOID = 1.70383 au 
 Jupiter MOID = 1.95078 au 
 T_jup = 3.160 
[ 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 15.4   n/a MPO385816  

185137 (2006 SG121)          Discovered 2006-Sep-18 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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