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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2267518152479468 6.7832e-08  
a 2.395388234034711 9.7159e-09 au
q 1.852229603743767 1.6599e-07 au
i 2.141651077604407 5.9289e-06 deg
node 10.68722152135521 0.00013482 deg
peri 348.9102286572355 0.00013544 deg
M 109.1508001323161 1.2147e-05 deg
tp 2458789.930467861753
(2019-Nov-02.43046786)
4.4815e-05 TDB
period 1354.136033731269
3.71
8.2388e-06
2.256e-08
d
yr
n .2658521677530684 1.6175e-09 deg/d
Q 2.938546864325656 1.1919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      9538 days (26.11 yr)  
   first obs. used      1995-02-05  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:44:39  

Additional Information
 Earth MOID = .847277 au 
 Jupiter MOID = 2.51418 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 17.01   n/a MPCxxxxx  

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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