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 ]  
183491 (2003 EU21)
Classification: Main-belt Asteroid          SPK-ID: 2183491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08187634094155981 5.385e-08  
a 3.0972727460523 3.3992e-08 au
q 2.843679386707521 1.7638e-07 au
i 5.307756599740451 5.8017e-06 deg
node 139.8812066642734 6.1343e-05 deg
peri 4.464089585663576 7.1095e-05 deg
M 2.340554564556797 3.5355e-05 deg
tp 2458587.555541937746
(2019-Apr-14.05554194)
0.0001955 TDB
period 1990.98323661328
5.45
3.2776e-05
8.974e-08
d
yr
n .1808151838648176 2.9766e-09 deg/d
Q 3.350866105397079 3.6775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      7629 days (20.89 yr)  
   first obs. used      1998-04-22  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6013  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:27:16  

Additional Information
 Earth MOID = 1.85646 au 
 Jupiter MOID = 1.65245 au 
 T_jup = 3.211 
[ 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 15.6   n/a MPO433200  

183491 (2003 EU21)          Discovered 2003-Mar-06 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin