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JPL Small-Body Database Browser
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15304 Wikberg (1992 UX4)
Classification: Main-belt Asteroid          SPK-ID: 2015304
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .329632222331986 4.7903e-08  
a 2.867105493122735 1.2802e-08 au
q 1.922015137764443 1.3958e-07 au
i 16.1681783675305 4.9086e-06 deg
node 239.445941056247 2.3538e-05 deg
peri 173.2088027147158 2.5354e-05 deg
M 163.2562814521204 1.1019e-05 deg
tp 2457796.360611191825
(2017-Feb-11.86061119)
5.1921e-05 TDB
period 1773.225369315082
4.85
1.1877e-05
3.252e-08
d
yr
n .2030198790461993 1.3598e-09 deg/d
Q 3.812195848481027 1.7023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      32670 days (89.45 yr)  
   first obs. used      1929-11-27  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56573  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:19:30  

Additional Information
 Earth MOID = .934051 au 
 Jupiter MOID = 1.57584 au 
 T_jup = 3.161 
[ 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 13.5   n/a MPO473973  

15304 Wikberg           Discovered 1992 Oct. 21 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Leonard Wikberg III (b. 1959) is a well-known planetary animator and the creator of extraordinary space images. As a graphics artist, he has helped to produce programs for Canadian, English, German and Japanese television. His web site is a repository for information on cratering.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1992 UX4 = 1987 WH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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