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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1042089575582852 4.0705e-08  
a 2.769295886441831 1.5387e-08 au
q 2.48071044894528 1.1117e-07 au
i 3.288483446369039 4.5503e-06 deg
node 332.7034748550056 6.8198e-05 deg
peri 69.94351619322501 7.2305e-05 deg
M 85.79621660237197 2.2148e-05 deg
tp 2458799.339555414778
(2019-Nov-11.83955541)
0.00010331 TDB
period 1683.264901061932
4.61
1.4029e-05
3.841e-08
d
yr
n .2138700805636026 1.7825e-09 deg/d
Q 3.057881323938381 1.6991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      540  
   data-arc span      7546 days (20.66 yr)  
   first obs. used      2000-08-02  
   last obs. used      2021-03-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54337  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:50  

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 ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.09   n/a MPCxxxxx  

187220 (2005 SX129)          Discovered 2005-Sep-29 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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