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233868 (2008 WH15)
Classification: Main-belt Asteroid          SPK-ID: 2233868
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1457732005175155 8.3268e-08  
a 2.908115205015129 3.3827e-08 au
q 2.484189944106423 2.4994e-07 au
i 6.943499992222239 5.6284e-06 deg
node 213.05229170 5.4065e-05 deg
peri 311.5250796706641 5.6787e-05 deg
M 288.6640689817308 1.9405e-05 deg
tp 2458959.439844587656
(2020-Apr-19.93984459)
0.00010049 TDB
period 1811.406148445213
4.96
3.1605e-05
8.653e-08
d
yr
n .1987406304814629 3.4676e-09 deg/d
Q 3.332040465923835 3.8758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      1998-09-27  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54761  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:55:07  

Additional Information
 Earth MOID = 1.49812 au 
 Jupiter MOID = 1.68823 au 
 T_jup = 3.258 
[ 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 15.5   n/a MPO460025  
diameter diameter 4.210 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233868 (2008 WH15)          Discovered 2008-Nov-17 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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