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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3259337646084749 4.6724e-08  
a 2.872095172686465 1.2513e-08 au
q 1.935982380738938 1.3612e-07 au
i 16.103341667674 4.6694e-06 deg
node 239.2692752845596 1.9661e-05 deg
peri 173.2800702019867 2.1231e-05 deg
M 324.4335537783712 1.0343e-05 deg
tp 2459572.144534130648
(2021-Dec-23.64453413)
5.1715e-05 TDB
period 1777.856350702265
4.87
1.1618e-05
3.181e-08
d
yr
n .2024910504483659 1.3233e-09 deg/d
Q 3.808207964633992 1.6591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1213  
   data-arc span      33493 days (91.70 yr)  
   first obs. used      1929-11-27  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53445  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:24:54  

Additional Information
 Earth MOID = .947936 au 
 Jupiter MOID = 1.58329 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 13.49   n/a MPO636294  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1946-Aug-14 09:41 00:02 Jupiter 1.91506726301583 1.9150653209454 1.91506920508932 3.52760462734459 3.39991274399799 2432046.903442673 1.59694153207512 310.913456454163 92.3654463305838 81.9621439061353 2652973.91717287 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25
1971-Mar-15 16:19 < 00:01 Jupiter 1.57287614105453 1.57287567853285 1.57287660359749 3.77159261075022 3.62599976780852 2441026.179524722 0.782269184614348 324.973633023922 9.32579066436039 86.222885480403 3498217.2312385 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25
1995-Sep-27 08:25 < 00:01 Jupiter 1.74934344662729 1.74934275552436 1.74934413773022 3.7169509265529 3.58431794761998 2449987.850761332 0.447183640546945 113.066368400482 34.9685281537418 -89.0906261368066 3339341.98097772 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25
2053-Apr-13 19:48 < 00:01 Jupiter 1.97685657686145 1.97685560862477 1.97685754509892 3.49795976341574 3.37324528417229 2471006.325218562 0.756463309310786 270.587025647055 49.5273304414025 87.5396251012444 2780410.87271272 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25
2077-Nov-22 00:27 00:01 Jupiter 1.58731257081326 1.58731207044601 1.58731307120036 3.77861368492065 3.6346499694936 2479994.518476779 1.01257107796373 306.452871972156 7.80698638891806 85.4890481503615 3491740.12853163 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25
2102-May-31 21:30 00:02 Jupiter 1.69674168398282 1.69674034377472 1.69674302419257 3.73668814407762 3.60061489246882 2488950.395722236 1.63844402173903 146.01334625305 51.836917968505 -71.2965293075244 3142086.0467333 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25
2184-Jul-31 08:10 00:03 Jupiter 1.61012833993774 1.61012691121523 1.6101297688541 3.77817548648687 3.63627446685548 2518961.840592697 2.78748271853928 909.050659441614 8.01790765514083 85.4952910600772 3468511.49208725 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 21:25:00 2021-Aug-24 21:25

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