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
JPL Small-Body Database Browser
Search: [ help ]  
392847 (2012 UK39)
Classification: Main-belt Asteroid          SPK-ID: 2392847
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05896682542670607 6.8138e-08  
a 2.686051935009794 4.0861e-08 au
q 2.527663979471005 1.8484e-07 au
i 4.421694325964583 7.0169e-06 deg
node 260.0587847286211 9.2182e-05 deg
peri 156.6271367706015 0.00011237 deg
M 244.6567263622472 6.8868e-05 deg
tp 2459515.680964292709
(2021-Oct-28.18096429)
0.00031367 TDB
period 1607.94072593992
4.40
3.6691e-05
1.005e-07
d
yr
n .2238888500007127 5.1088e-09 deg/d
Q 2.844439890548582 4.327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      7113 days (19.47 yr)  
   first obs. used      1999-12-05  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:46:26  

Additional Information
 Earth MOID = 1.54035 au 
 Jupiter MOID = 2.36873 au 
 T_jup = 3.367 
[ 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 16.9   n/a MPO434457  

392847 (2012 UK39)          Discovered 2008-Nov-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 UK39 = 2008 WC118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-13 11:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin