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187220 (2005 SX129)
Classification: Main-belt Asteroid          SPK-ID: 2187220
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1042089584129851 4.0939e-08  
a 2.769295885953531 1.5581e-08 au
q 2.480710446140949 1.1208e-07 au
i 3.288483455885154 4.5507e-06 deg
node 332.7034759109967 6.9639e-05 deg
peri 69.94351567292804 7.3727e-05 deg
M 85.79621628768938 2.2206e-05 deg
tp 2458799.339556992254
(2019-Nov-11.83955699)		 0.00010362 TDB
period 1683.264900616726
4.61		 1.4206e-05
3.889e-08		 d
yr
n .213870080620169 1.805e-09 deg/d
Q 3.057881325766114 1.7205e-08 au
   Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      7520 days (20.59 yr)  
   first obs. used      2000-08-02  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:30  

Additional Information
 Earth MOID = 1.49053 au 
 Jupiter MOID = 2.30821 au 
 T_jup = 3.328 
[ 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 16.0   n/a MPO454289  

187220 (2005 SX129)          Discovered 2005-Sep-29 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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