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15233 (1987 WU4)
Classification: Main-belt Asteroid          SPK-ID: 2015233
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555063247384137 4.4058e-08  
a 2.572372072479197 1.1792e-08 au
q 2.172351945628221 1.1176e-07 au
i 4.72554249174864 4.6506e-06 deg
node 79.33265520061143 5.2712e-05 deg
peri 326.11250432851 5.4555e-05 deg
M 323.3998059346482 1.3843e-05 deg
tp 2459153.707488436159
(2020-Oct-31.20748844)
5.8029e-05 TDB
period 1506.950912296671
4.13
1.0362e-05
2.837e-08
d
yr
n .2388929838805043 1.6427e-09 deg/d
Q 2.972392199330173 1.3626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1440  
   data-arc span      11996 days (32.84 yr)  
   first obs. used      1987-11-18  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:39:52  

Additional Information
 Earth MOID = 1.18386 au 
 Jupiter MOID = 2.40966 au 
 T_jup = 3.407 
[ 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 14.0   n/a MPO452385  
diameter diameter 3.781 km 0.366 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.409   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15233 (1987 WU4)          Discovered 1987-Nov-26 by Mrkos, A. at Klet
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 WU4 = 1998 KE64 = 1999 RX172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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