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 ]  
312390 (2008 ER147)
Classification: Main-belt Asteroid          SPK-ID: 2312390
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03640555528120654 4.9256e-08  
a 2.761427202554553 2.8353e-08 au
q 2.660895911876926 1.3737e-07 au
i 6.341907210617042 6.614e-06 deg
node 172.2431520831254 4.4885e-05 deg
peri 248.7325188821231 0.00010297 deg
M 38.57942802957832 9.0101e-05 deg
tp 2459020.881068407847
(2020-Jun-20.38106841)
0.00041974 TDB
period 1676.095750398347
4.59
2.5814e-05
7.067e-08
d
yr
n .214784865312403 3.3079e-09 deg/d
Q 2.86195849323218 2.9385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      6540 days (17.91 yr)  
   first obs. used      2003-02-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5538  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:29:46  

Additional Information
 Earth MOID = 1.6792 au 
 Jupiter MOID = 2.24757 au 
 T_jup = 3.331 
[ 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 16.66   n/a MPCxxxxx  

312390 (2008 ER147)          Discovered 2008-Mar-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-12 12:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin