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 ]  
252743 (2002 EJ1)
Classification: Jupiter Trojan          SPK-ID: 2252743
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09214214145406564 5.3134e-08  
a 5.225791637883244 1.6517e-07 au
q 4.744276005575933 3.3885e-07 au
i 9.839095599827823 7.1002e-06 deg
node 151.6524175056472 2.8196e-05 deg
peri 317.9853067969902 5.1566e-05 deg
M 229.4168861571276 4.825e-05 deg
tp 2460583.245476368792
(2024-Sep-29.74547637)
0.00063947 TDB
period 4363.415412029291
11.95
0.00020687
5.664e-07
d
yr
n .08250417757785179 3.9116e-09 deg/d
Q 5.707307270190556 1.8039e-07 au
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      6832 days (18.70 yr)  
   first obs. used      2002-02-05  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:56:01  

Additional Information
 Earth MOID = 3.76856 au 
 Jupiter MOID = .483943 au 
 T_jup = 2.962 
[ 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 13.1   n/a MPO437173  

252743 (2002 EJ1)          Discovered 2002-Mar-06 by Kusnirak, P. at Ondrejov
Reference: 20101128/Numbers.arcLast Updated: 2010-12-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 15:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin