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 ]  
312368 (2008 EF5)
Classification: Main-belt Asteroid          SPK-ID: 2312368
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0689279451883807 4.235e-08  
a 2.972290036901126 2.698e-08 au
q 2.767416192153635 1.2471e-07 au
i 11.96387025439758 4.7866e-06 deg
node 128.1996715795468 1.9344e-05 deg
peri 5.588580526464726 4.2662e-05 deg
M 179.7522063932791 4.126e-05 deg
tp 2458065.940547220427
(2017-Nov-08.44054722)
0.00020886 TDB
period 1871.695539939842
5.12
2.5485e-05
6.977e-08
d
yr
n .1923389741109127 2.6188e-09 deg/d
Q 3.177163881648617 2.884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7348 days (20.12 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:43  

Additional Information
 Earth MOID = 1.78209 au 
 Jupiter MOID = 1.86391 au 
 T_jup = 3.226 
[ 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 MPO437378  

312368 (2008 EF5)          Discovered 2008-Mar-02 by PMO NEO Survey Program at Purple Mountain
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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-Dec-02 08:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin