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308894 (2006 SA168)
Classification: Main-belt Asteroid          SPK-ID: 2308894
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04277492862925725 7.6264e-08  
a 2.755728744017012 3.7256e-08 au
q 2.637852643670092 2.2387e-07 au
i 6.183437269449338 1.1124e-05 deg
node 347.3530564616308 6.9624e-05 deg
peri 60.16349815443974 0.00016481 deg
M 315.8737247122427 0.00014774 deg
tp 2459205.308461636923
(2020-Dec-21.80846164)
0.00068685 TDB
period 1670.910261708598
4.57
3.3885e-05
9.277e-08
d
yr
n .2154514268359811 4.3692e-09 deg/d
Q 2.873604844363933 3.8849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      7947 days (21.76 yr)  
   first obs. used      1997-09-29  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:20:25  

Additional Information
 Earth MOID = 1.65246 au 
 Jupiter MOID = 2.28368 au 
 T_jup = 3.334 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456787.5 (2014-May-10.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04431758103455938 7.8588e-08  
q 2.634467038950375 2.3122e-07 au
tp 2457518.664636270193
(2016-May-10.16463627)
0.00064321 TDB
node 347.5551718234887 6.9542e-05 deg
peri 56.93954635598092 0.0001581 deg
i 6.187671101177356 1.1128e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      7947 days (21.76 yr)  
   first obs. used      1997-09-29  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:20:25  

Additional Information
 Jupiter MOID = 2.28368 au 
 T_jup = 3.334 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.176122080015385E-15 -1.797511735910018E-14 -1.85042868949242E-11 7.002767698500107E-14 -3.955875352548258E-12 -7.363668614203468E-15
q -1.797511735910018E-14 5.346475922410932E-14 5.697093151955687E-11 -2.127770116881117E-13 1.209206793044963E-11 2.387860894451398E-14
tp -1.85042868949242E-11 5.697093151955687E-11 4.137167070728061E-7 -6.891248163268894E-10 9.134458759166129E-8 4.133138307097113E-11
node 7.002767698500107E-14 -2.127770116881117E-13 -6.891248163268894E-10 4.83614327761701E-9 -4.955376263921773E-9 -7.073337779099988E-12
peri -3.955875352548258E-12 1.209206793044963E-11 9.134458759166129E-8 -4.955376263921773E-9 2.499710639394682E-8 1.586426847553811E-11
i -7.363668614203468E-15 2.387860894451398E-14 4.133138307097113E-11 -7.073337779099988E-12 1.586426847553811E-11 1.238381233019774E-10

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 17.0   n/a MPO476380  

308894 (2006 SA168)          Discovered 2006-Sep-25 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2006 SA168 = 2004 EJ99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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