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(2012 SS57)
Classification: Main-belt Asteroid          SPK-ID: 3247067
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078151565825322 8.7551e-08  
a 2.609528966531061 3.0464e-08 au
q 2.067229295744756 2.4534e-07 au
i 5.271281957543225 7.1488e-06 deg
node 194.2527483559624 5.6355e-05 deg
peri 168.2901585922926 5.8198e-05 deg
M 308.5589976972885 1.4728e-05 deg
tp 2459220.513095350304
(2021-Jan-06.01309535)
6.5219e-05 TDB
period 1539.719499632193
4.22
2.6963e-05
7.382e-08
d
yr
n .2338088204286537 4.0943e-09 deg/d
Q 3.151828637317367 3.6795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      10492 days (28.73 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-01 23:57:23  

Additional Information
 Earth MOID = 1.06518 au 
 Jupiter MOID = 2.3124 au 
 T_jup = 3.374 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a E2016-UC0  

Alternate Designations
 2012 SS57 = 1991 TD16 = 2008 UJ188 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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