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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556209121672007 4.2769e-08  
a 2.572659680763162 9.7169e-09 au
q 2.172300034547019 1.0965e-07 au
i 4.725448836940477 4.3786e-06 deg
node 79.33349600560938 4.3165e-05 deg
peri 326.1359338240334 4.5204e-05 deg
M 11.15996129937186 1.0932e-05 deg
tp 2459153.776848875688
(2020-Oct-31.27684888)
4.5873e-05 TDB
period 1507.203650043023
4.13
8.5391e-06
2.338e-08
d
yr
n .2388529247455869 1.3532e-09 deg/d
Q 2.973019326979304 1.1229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1774  
   data-arc span      12115 days (33.17 yr)  
   first obs. used      1987-11-18  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:22:53  

Additional Information
 Earth MOID = 1.1829 au 
 Jupiter MOID = 2.40978 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 14.01   n/a E2021B10  
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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