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 ]  
541561 (2011 SA164)
Classification: Inner Main-belt Asteroid          SPK-ID: 2541561
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02012043630370366 6.5382e-08  
a 1.897300345796411 1.648e-08 au
q 1.859125835039819 1.3077e-07 au
i 22.2208978893799 1.1599e-05 deg
node 13.75724911318107 1.4788e-05 deg
peri 237.1651638473267 0.00025294 deg
M 310.8614762457356 0.00025479 deg
tp 2459330.793322841818
(2021-Apr-26.29332284)
0.00067602 TDB
period 954.5585141634214
2.61
1.2437e-05
3.405e-08
d
yr
n .3771376973317401 4.9138e-09 deg/d
Q 1.935474856553002 1.6812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      64  
   data-arc span      5341 days (14.62 yr)  
   first obs. used      2005-04-04  
   last obs. used      2019-11-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:39  

Additional Information
 Earth MOID = .87175 au 
 Jupiter MOID = 3.03701 au 
 T_jup = 3.860 
[ 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 18.7   n/a MPO437975  

541561 (2011 SA164)          Discovered 2011-Sep-23 by Pan-STARRS 1 at Haleakala
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-20 05:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin