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JPL Small-Body Database Browser
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117261 (2004 SS57)
Classification: Main-belt Asteroid          SPK-ID: 2117261
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1303047519623541 5.9061e-08  
a 3.109323036427152 2.9856e-08 au
q 2.704163469394678 1.7751e-07 au
i 16.06685180195178 6.6475e-06 deg
node 214.3634926666554 1.7951e-05 deg
peri 190.6860005799954 2.7489e-05 deg
M 230.287904505222 2.0317e-05 deg
tp 2459322.064516392235
(2021-Apr-17.56451639)
0.00011597 TDB
period 2002.613749399049
5.48
2.8844e-05
7.897e-08
d
yr
n .1797650695787094 2.5892e-09 deg/d
Q 3.514482603459625 3.3747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      9005 days (24.65 yr)  
   first obs. used      1993-10-09  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53257  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:07:03  

Additional Information
 Earth MOID = 1.71366 au 
 Jupiter MOID = 1.90783 au 
 T_jup = 3.146 
[ 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 14.7   n/a MPO417610  

117261 (2004 SS57)          Discovered 2004-Sep-16 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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