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308426 (2005 SF139)
Classification: Main-belt Asteroid          SPK-ID: 2308426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626529870094005 6.6624e-08  
a 3.10912042221241 3.9967e-08 au
q 2.603412698567634 2.0816e-07 au
i 2.256803948155874 7.7567e-06 deg
node 83.45459947065906 0.00019718 deg
peri 344.6170520185752 0.00019944 deg
M 205.4281244300146 3.0397e-05 deg
tp 2459860.270852721371
(2022-Oct-07.77085272)
0.00017995 TDB
period 2002.418006757986
5.48
3.8611e-05
1.057e-07
d
yr
n .1797826421781224 3.4666e-09 deg/d
Q 3.614828145857187 4.6468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      6232 days (17.06 yr)  
   first obs. used      2002-03-10  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55385  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:46:19  

Additional Information
 Earth MOID = 1.6176 au 
 Jupiter MOID = 1.68605 au 
 T_jup = 3.198 
[ 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 16.6   n/a MPO437366  

308426 (2005 SF139)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 SF139 = 2006 WH160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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