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249254 (2008 SK2)
Classification: Main-belt Asteroid          SPK-ID: 2249254
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2184381322462144 4.7862e-08  
a 2.772598759942939 2.3331e-08 au
q 2.166957465352833 1.3526e-07 au
i 7.831000060363532 6.4059e-06 deg
node 193.9813252841672 4.379e-05 deg
peri 211.0646799245457 4.6379e-05 deg
M 163.7949445497345 1.7135e-05 deg
tp 2458233.267561552834
(2018-Apr-24.76756155)
7.5351e-05 TDB
period 1686.277183952485
4.62
2.1285e-05
5.828e-08
d
yr
n .2134880335368066 2.6948e-09 deg/d
Q 3.378240054533045 2.8428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      8394 days (22.98 yr)  
   first obs. used      1996-02-18  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62518  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:09:05  

Additional Information
 Earth MOID = 1.17995 au 
 Jupiter MOID = 2.04857 au 
 T_jup = 3.288 
[ 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 16.5   n/a MPO382327  
diameter diameter 3.547 km 1.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249254 (2008 SK2)          Discovered 2008-Sep-22 by Tucker, R. A. at Goodricke-Pigott
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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