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187490 (2006 SJ212)
Classification: Inner Main-belt Asteroid          SPK-ID: 2187490
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08280906083180861 3.7514e-08  
a 1.907393704224694 7.9391e-09 au
q 1.749444222941342 7.0412e-08 au
i 20.50366570133993 6.1344e-06 deg
node 209.1661165099301 1.0593e-05 deg
peri 84.06921279426035 5.2149e-05 deg
M 219.701908942517 4.5955e-05 deg
tp 2459575.480086775583
(2021-Dec-26.98008678)
0.00012195 TDB
period 962.1858018289103
2.63
6.0073e-06
1.645e-08
d
yr
n .3741481108074103 2.3359e-09 deg/d
Q 2.065343185508045 8.5965e-09 au
  Orbit Determination Parameters
   # obs. used (total)      516  
   data-arc span      8127 days (22.25 yr)  
   first obs. used      1998-10-18  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:56:49  

Additional Information
 Earth MOID = .82828 au 
 Jupiter MOID = 3.03884 au 
 T_jup = 3.858 
[ 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 17.1   n/a MPO427139  

187490 (2006 SJ212)          Discovered 2006-Sep-26 by Spacewatch at Kitt Peak
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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