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 ]  
541487 (2011 OG18)
Classification: Main-belt Asteroid          SPK-ID: 2541487
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0838221196656251 4.7292e-08  
a 2.474158015634671 2.8363e-08 au
q 2.266768846376476 1.1178e-07 au
i 5.728717422136052 1.0193e-05 deg
node 312.0624385378546 4.6292e-05 deg
peri 114.2007663314674 8.942e-05 deg
M 46.79676750000646 7.2398e-05 deg
tp 2459015.720864578050
(2020-Jun-15.22086458)
0.00028589 TDB
period 1421.47614687046
3.89
2.4443e-05
6.692e-08
d
yr
n .2532578550773297 4.3549e-09 deg/d
Q 2.681547184892866 3.0741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      190  
   data-arc span      4487 days (12.28 yr)  
   first obs. used      2008-11-21  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:24  

Additional Information
 Earth MOID = 1.28733 au 
 Jupiter MOID = 2.527 au 
 T_jup = 3.470 
[ 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 17.27   n/a MPCxxxxx  

541487 (2011 OG18)          Discovered 2011-Jul-25 by Observatorio Cielo at Observatorio Ciel
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-21 15:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin