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 ]  
268146 (2004 TJ239)
Classification: Main-belt Asteroid          SPK-ID: 2268146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07711546313393261 6.6757e-08  
a 2.84403337193735 3.1739e-08 au
q 2.624714421292042 2.0264e-07 au
i 5.744930300129493 6.0862e-06 deg
node 213.1968342783437 6.1856e-05 deg
peri 136.740845200304 7.1281e-05 deg
M 47.71743729835138 3.4432e-05 deg
tp 2458368.293127179799
(2018-Sep-06.79312718)
0.00016805 TDB
period 1751.86428585008
4.80
2.9326e-05
8.029e-08
d
yr
n .2054953702223072 3.44e-09 deg/d
Q 3.063352322582659 3.4187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      6945 days (19.01 yr)  
   first obs. used      1999-10-13  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6154  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:22:14  

Additional Information
 Earth MOID = 1.6218 au 
 Jupiter MOID = 2.27452 au 
 T_jup = 3.296 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO418423  

268146 (2004 TJ239)          Discovered 2004-Oct-09 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2004 TJ239 = 2009 UG84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-22 20:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin