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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556209120290539 4.2721e-08  
a 2.572659680576761 9.6747e-09 au
q 2.172300034745031 1.0949e-07 au
i 4.725449071747351 4.3675e-06 deg
node 79.33348876638063 4.2035e-05 deg
peri 326.1359408246032 4.4124e-05 deg
M 11.15996145286179 1.088e-05 deg
tp 2459153.776848238154
(2020-Oct-31.27684824)
4.5658e-05 TDB
period 1507.203649879217
4.13
8.5019e-06
2.328e-08
d
yr
n .2388529247715458 1.3473e-09 deg/d
Q 2.973019326408491 1.118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1846  
   data-arc span      12169 days (33.32 yr)  
   first obs. used      1987-11-18  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:52:32  

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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