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117287 (2004 TS221)
Classification: Main-belt Asteroid          SPK-ID: 2117287
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05062541121103266 4.3417e-08  
a 2.69054501823424 2.0431e-08 au
q 2.554335070304336 1.2496e-07 au
i 7.574994400964419 3.9514e-06 deg
node 105.4804424985458 3.9571e-05 deg
peri 198.3932961428799 6.6666e-05 deg
M 266.912483274818 5.423e-05 deg
tp 2459417.319247855859
(2021-Jul-21.81924786)		 0.00024214 TDB
period 1611.976927809876
4.41		 1.8361e-05
5.027e-08		 d
yr
n .2233282584814142 2.5439e-09 deg/d
Q 2.826754966164144 2.1466e-08 au
   Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      8115 days (22.22 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56374  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:19:50  

Additional Information
 Earth MOID = 1.53989 au 
 Jupiter MOID = 2.30175 au 
 T_jup = 3.358 
[ 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 15.43   n/a E2021B55  

117287 (2004 TS221)          Discovered 2004-Oct-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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