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212617 (2006 SJ399)
Classification: Main-belt Asteroid          SPK-ID: 2212617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1658306804751068 5.6381e-08  
a 2.628679338598383 2.3132e-08 au
q 2.192763655127759 1.4919e-07 au
i 2.814340087048938 5.7019e-06 deg
node 62.05941281666115 0.00012011 deg
peri 222.8139009958151 0.00012122 deg
M 146.9290404560794 1.7348e-05 deg
tp 2458365.154459598808
(2018-Sep-03.65445960)
7.144e-05 TDB
period 1556.699709155183
4.26
2.0548e-05
5.626e-08
d
yr
n .2312584745039691 3.0526e-09 deg/d
Q 3.064595022069006 2.6968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      5760 days (15.77 yr)  
   first obs. used      2004-01-19  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:46:25  

Additional Information
 Earth MOID = 1.17736 au 
 Jupiter MOID = 2.08917 au 
 T_jup = 3.380 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457059.5 (2015-Feb-06.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1667619784603715 5.6117e-08  
q 2.189714486587335 1.4858e-07 au
tp 2456810.524351329606
(2014-Jun-02.02435133)
6.6309e-05 TDB
node 62.06791878492559 0.00012018 deg
peri 223.0873913115188 0.00012129 deg
i 2.814662746960587 5.6987e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      5760 days (15.77 yr)  
   first obs. used      2004-01-19  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:46:25  

Additional Information
 Jupiter MOID = 2.08917 au 
 T_jup = 3.380 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.149169352705561E-15 -8.267665007732033E-15 4.962027452182888E-15 2.961337592900307E-14 -9.454086630540517E-14 -2.707135800458104E-15
q -8.267665007732033E-15 2.207746687849069E-14 1.009318834507425E-13 -8.159458699221246E-14 2.90943325574498E-13 7.508092038076668E-15
tp 4.962027452182888E-15 1.009318834507425E-13 4.396918940513382E-9 -9.580773839168437E-12 1.116371045962698E-9 -3.810875526887932E-13
node 2.961337592900307E-14 -8.159458699221246E-14 -9.580773839168437E-12 1.444362658315709E-8 -1.44284764037205E-8 1.170478831932018E-10
peri -9.454086630540517E-14 2.90943325574498E-13 1.116371045962698E-9 -1.44284764037205E-8 1.471050453086831E-8 -1.169495642772606E-10
i -2.707135800458104E-15 7.508092038076668E-15 -3.810875526887932E-13 1.170478831932018E-10 -1.169495642772606E-10 3.24751473468711E-11

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 MPO454526  

212617 (2006 SJ399)          Discovered 2006-Sep-17 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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