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 ]  
154114 (2002 EN39)
Classification: Main-belt Asteroid          SPK-ID: 2154114
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06051575468008067 5.1626e-08  
a 2.864916980412925 2.2296e-08 au
q 2.691544367247459 1.5035e-07 au
i 2.08540750874974 6.2909e-06 deg
node 172.02707280574 0.00011546 deg
peri 243.6789332734387 0.00013234 deg
M 19.21818357131368 5.9376e-05 deg
tp 2458905.946779457348
(2020-Feb-26.44677946)
0.00029245 TDB
period 1771.195455025411
4.85
2.0676e-05
5.661e-08
d
yr
n .2032525540750302 2.3727e-09 deg/d
Q 3.038289593578391 2.3645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      2000-12-01  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57141  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 12:02:23  

Additional Information
 Earth MOID = 1.70376 au 
 Jupiter MOID = 2.1762 au 
 T_jup = 3.297 
[ 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 15.7   n/a MPO502911  

154114 (2002 EN39)          Discovered 2002-Mar-09 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ 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 2020-Feb-27 21:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin