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155432 (1997 SS2)
Classification: Main-belt Asteroid          SPK-ID: 2155432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2266611368844314 6.9346e-08  
a 2.395096991693972 1.0089e-08 au
q 1.852221584608135 1.6994e-07 au
i 2.14162263768578 6.1878e-06 deg
node 10.6934352793011 0.00013519 deg
peri 348.8785553350542 0.00013592 deg
M 56.01359317610055 1.2392e-05 deg
tp 2458789.843911039913
(2019-Nov-02.34391104)
4.6276e-05 TDB
period 1353.889078088792
3.71
8.5547e-06
2.342e-08
d
yr
n .2659006604205652 1.6801e-09 deg/d
Q 2.937972398779809 1.2376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      355  
   data-arc span      9046 days (24.77 yr)  
   first obs. used      1995-02-05  
   last obs. used      2019-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:10:17  

Additional Information
 Earth MOID = .848904 au 
 Jupiter MOID = 2.51382 au 
 T_jup = 3.493 
[ 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 16.9   n/a MPO396269  

155432 (1997 SS2)          Discovered 1997-Sep-25 by Wolf, M., Pravec, P. at Ondrejov
Reference: 20070502/Numbers.arcLast Updated: 2007-05-02

Alternate Designations
 1997 SS2 = 2003 FD97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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