Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3271951264494036 4.7714e-08  
a 2.872439364974075 1.2897e-08 au
q 1.932591203733138 1.3952e-07 au
i 16.13117218436383 4.8797e-06 deg
node 239.4169716986004 2.0439e-05 deg
peri 173.1591007761746 2.2156e-05 deg
M 244.380156513264 1.0863e-05 deg
tp 2459571.590068922541
(2021-Dec-23.09006892)
5.6029e-05 TDB
period 1778.175948107909
4.87
1.1975e-05
3.279e-08
d
yr
n .202454656066551 1.3635e-09 deg/d
Q 3.812287526215012 1.7116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      32715 days (89.57 yr)  
   first obs. used      1929-11-27  
   last obs. used      2019-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:15:38  

Additional Information
 Earth MOID = .945021 au 
 Jupiter MOID = 1.57729 au 
 T_jup = 3.160 
[ 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

[ 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 1.91506720157983 1.91506514269236 1.91506926047068 3.52760458837541 3.39991269867325 2432046.903559327 1.68619526526971 322.484066346498 97.630711028434 81.6343765860259 2530000.74504593 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15
1971-Mar-15 16:19 < 00:01 Jupiter 1.57287614777219 1.57287567471265 1.57287662085488 3.77159254976228 3.62599970418562 2441026.179562004 0.822378195471285 338.551225347604 9.68586834674635 86.2896572850643 3364889.71327699 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15
1995-Sep-27 08:25 < 00:01 Jupiter 1.74934342111711 1.7493426903677 1.74934415186662 3.71695101381964 3.58431803539971 2449987.850781621 0.469236393691579 115.041512130655 36.8213594401162 -88.3096418961721 3222294.08711569 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15
2053-Apr-13 19:48 < 00:01 Jupiter 1.97685660873885 1.97685559436542 1.97685762311306 3.49795943034009 3.37324494012882 2471006.325202498 0.803022265765263 281.187356794878 52.0817650473896 87.5936155282754 2658675.03006328 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15
2077-Nov-22 00:27 00:01 Jupiter 1.58731263570881 1.58731211147201 1.58731315996799 3.77861370188379 3.63464999231994 2479994.518407419 1.07591820327499 324.898882804881 8.04275979876702 85.5243952397413 3361476.8024471 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15
2102-May-31 21:30 00:02 Jupiter 1.69674144865792 1.69674005190018 1.69674284541779 3.73668835992769 3.6006150964814 2488950.395514189 1.73506423604306 154.806346935724 52.1620769593937 -70.8807402506493 3059855.15859673 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15
2184-Jul-31 08:09 00:03 Jupiter 1.61012885344524 1.61012733975218 1.61013036735668 3.77817538938889 3.63627441130773 2518961.839922152 2.95473465676977 964.437103616493 8.34026623455316 85.5000641356992 3337807.30152083 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 21:15:55 2020-Feb-22 21:15

Alternate Designations
 1992 UX4 = 1987 WH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-05 10:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin