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 ]  
392110 (2009 EK21)
Classification: Inner Main-belt Asteroid          SPK-ID: 2392110
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07791660159994593 6.7112e-08  
a 1.895484258781344 1.3707e-08 au
q 1.747794566950909 1.247e-07 au
i 25.95852766179915 1.4641e-05 deg
node 43.88272303646217 1.2302e-05 deg
peri 121.1612286884654 9.4552e-05 deg
M 329.0189750539401 8.8875e-05 deg
tp 2458682.529861965516
(2019-Jul-18.02986197)
0.00023527 TDB
period 953.1882937701672
2.61
1.034e-05
2.831e-08
d
yr
n .3776798376069894 4.0968e-09 deg/d
Q 2.043173950611779 1.4775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      7764 days (21.26 yr)  
   first obs. used      1997-10-23  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57378  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:03:45  

Additional Information
 Earth MOID = .792534 au 
 Jupiter MOID = 2.98241 au 
 T_jup = 3.827 
[ 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 17.6   n/a MPO455783  

392110 (2009 EK21)          Discovered 2009-Mar-03 by CSS at Catalina
Reference: Last Updated: 2014-04-17

[ 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