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541568 (2011 SA218)
Classification: Main-belt Asteroid          SPK-ID: 2541568
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978905011533456 9.7967e-08  
a 2.552290540677909 1.8742e-08 au
q 2.047216486494214 2.5464e-07 au
i 12.80416415663773 7.521e-06 deg
node 147.291319817493 2.9501e-05 deg
peri 209.6454796795406 3.3292e-05 deg
M 109.941107675823 1.3037e-05 deg
tp 2458745.667802559974
(2019-Sep-19.16780256)
5.2506e-05 TDB
period 1489.339106544375
4.08
1.6405e-05
4.491e-08
d
yr
n .2417179528947484 2.6625e-09 deg/d
Q 3.057364594861604 2.2451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4841 days (13.25 yr)  
   first obs. used      2007-11-11  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:40  

Additional Information
 Earth MOID = 1.04924 au 
 Jupiter MOID = 2.3946 au 
 T_jup = 3.378 
[ 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 17.54   .3172 MPCxxxxx autocmod 2.8

541568 (2011 SA218)          Discovered 2011-Sep-24 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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