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JPL Small-Body Database Browser
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243377 (2008 XK40)
Classification: Main-belt Asteroid          SPK-ID: 2243377
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07338394012561492 6.5362e-08  
a 3.118751757024064 5.4612e-08 au
q 2.889885464819954 2.1144e-07 au
i 2.30508212761164 8.6306e-06 deg
node 12.50399179311949 0.00021354 deg
peri 47.54094650572092 0.00022525 deg
M 339.5402837383922 7.2613e-05 deg
tp 2458714.831721862241
(2019-Aug-19.33172186)
0.00040661 TDB
period 2011.729749529404
5.51
5.2841e-05
1.447e-07
d
yr
n .1789504778582776 4.7004e-09 deg/d
Q 3.347618049228174 5.862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      5782 days (15.83 yr)  
   first obs. used      2002-11-14  
   last obs. used      2018-09-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60756  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:43  

Additional Information
 Earth MOID = 1.90258 au 
 Jupiter MOID = 1.90196 au 
 T_jup = 3.211 
[ 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 16.4   n/a MPO454785  
diameter diameter 3.746 km 0.865 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243377 (2008 XK40)          Discovered 2008-Dec-02 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2008 XK40 = 2004 CN25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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