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249896 (2001 SK4)
Classification: Main-belt Asteroid          SPK-ID: 2249896
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2342691174651583 9.2022e-08  
a 2.733917785923923 1.1267e-08 au
q 2.093445278993226 2.5378e-07 au
i 10.06647556037836 8.8301e-06 deg
node 171.3821762147761 2.5693e-05 deg
peri 204.6001511019591 2.8144e-05 deg
M 45.81811211457546 8.977e-06 deg
tp 2458790.358759206205
(2019-Nov-02.85875921)
4.095e-05 TDB
period 1651.11226094583
4.52
1.0207e-05
2.795e-08
d
yr
n .2180348414309371 1.3478e-09 deg/d
Q 3.37439029285462 1.3906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:17  

Additional Information
 Earth MOID = 1.09844 au 
 Jupiter MOID = 2.09767 au 
 T_jup = 3.291 
[ 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 16.2   n/a MPO450109  

249896 (2001 SK4)          Discovered 2001-Sep-17 by Tucker, R. A. at Goodricke-Pigott
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 2001 SK4 = 2002 AV205 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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