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 ]  
541221 (2011 CA5)
Classification: Main-belt Asteroid          SPK-ID: 2541221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2419261496711081 7.3867e-08  
a 2.809717346616426 3.6931e-08 au
q 2.129973247285392 2.1191e-07 au
i 25.10054925361176 6.1609e-06 deg
node 139.8969196775381 1.829e-05 deg
peri 295.2852566657746 2.7795e-05 deg
M 116.9010896229351 1.5041e-05 deg
tp 2458837.890349354494
(2019-Dec-20.39034935)
7.2928e-05 TDB
period 1720.253206202177
4.71
3.3916e-05
9.286e-08
d
yr
n .2092715181126016 4.126e-09 deg/d
Q 3.48946144594746 4.5865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      3751 days (10.27 yr)  
   first obs. used      2011-01-27  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:00:41  

Additional Information
 Earth MOID = 1.25162 au 
 Jupiter MOID = 2.01503 au 
 T_jup = 3.143 
[ 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 16.93   n/a E2021B25  

541221 (2011 CA5)          Discovered 2011-Jan-27 by Mount Lemmon Survey at Mount Lemmon
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-Jul-27 10:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin