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JPL Small-Body Database Browser
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173800 (2001 SS218)
Classification: Main-belt Asteroid          SPK-ID: 2173800
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260254874993146 5.5382e-08  
a 2.873218402948972 2.5253e-08 au
q 2.511119653025326 1.6859e-07 au
i 2.526140798772844 7.2981e-06 deg
node 30.58517491559347 0.00012789 deg
peri 291.1041168257887 0.00013114 deg
M 252.1089705901533 3.108e-05 deg
tp 2459133.631350891335
(2020-Oct-11.13135089)
0.00015715 TDB
period 1778.899389232858
4.87
2.3453e-05
6.421e-08
d
yr
n .2023723219980688 2.668e-09 deg/d
Q 3.235317152872619 2.8436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      8264 days (22.63 yr)  
   first obs. used      1996-09-15  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57862  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:06:28  

Additional Information
 Earth MOID = 1.49908 au 
 Jupiter MOID = 2.06106 au 
 T_jup = 3.284 
[ 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 15.7   n/a MPO396382  

173800 (2001 SS218)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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