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 ]  
226541 (2003 UJ221)
Classification: Main-belt Asteroid          SPK-ID: 2226541
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05008255324009333 9.8669e-08  
a 3.165474562335866 4.5609e-08 au
q 3.006939514037519 3.0905e-07 au
i 10.40961923090032 1.1139e-05 deg
node 18.42146376558414 4.0874e-05 deg
peri 187.1223610721865 9.0581e-05 deg
M 165.300525255329 8.1296e-05 deg
tp 2458055.942498362024
(2017-Oct-29.44249836)
0.00046458 TDB
period 2057.105989617592
5.63
4.4459e-05
1.217e-07
d
yr
n .1750031363561013 3.7822e-09 deg/d
Q 3.324009610634213 4.7893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      5813 days (15.92 yr)  
   first obs. used      2003-09-22  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59914  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:09:37  

Additional Information
 Earth MOID = 2.00342 au 
 Jupiter MOID = 1.63455 au 
 T_jup = 3.176 
[ 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 15.4   n/a MPO475855  

226541 (2003 UJ221)          Discovered 2003-Oct-22 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2003 UJ221 = 2006 DF183 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-24 21:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin