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243374 (2008 XW4)
Classification: Main-belt Asteroid          SPK-ID: 2243374
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1552490980087852 9.7667e-08  
a 3.121834785299593 4.8654e-08 au
q 2.637172750749381 3.0958e-07 au
i 15.40234527526191 1.0811e-05 deg
node 292.0066927309022 3.0147e-05 deg
peri 228.3509303792004 3.9547e-05 deg
M 272.785693677335 2.9222e-05 deg
tp 2459088.588449380908
(2020-Aug-27.08844938)
0.00016969 TDB
period 2014.713516461956
5.52
4.7099e-05
1.29e-07
d
yr
n .1786854543132251 4.1772e-09 deg/d
Q 3.606496819849804 5.6207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      8429 days (23.08 yr)  
   first obs. used      1995-09-23  
   last obs. used      2018-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59731  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:10:32  

Additional Information
 Earth MOID = 1.67547 au 
 Jupiter MOID = 1.59799 au 
 T_jup = 3.142 
[ 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 14.7   n/a MPO418301  
diameter diameter 3.809 km 0.835 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.176   0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243374 (2008 XW4)          Discovered 2008-Dec-03 by LINEAR at Socorro
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2008 XW4 = 1995 SM35 = 2007 UM7 = 2007 VC300 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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