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541558 (2011 SE122)
Classification: Main-belt Asteroid          SPK-ID: 2541558
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2591446587867505 1.0799e-06  
a 2.524262529182004 4.7623e-08 au
q 1.870113377368954 2.701e-06 au
i 12.36551237753418 3.5252e-05 deg
node 189.8556260424789 3.4983e-05 deg
peri 178.8755880775368 0.00083365 deg
M 112.0447064038943 0.00046341 deg
tp 2458744.579573869944
(2019-Sep-18.07957387)
0.0018978 TDB
period 1464.873787211027
4.01
4.1455e-05
1.135e-07
d
yr
n .2457549606955586 6.9547e-09 deg/d
Q 3.178411680995055 5.9965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      4465 days (12.22 yr)  
   first obs. used      2007-09-05  
   last obs. used      2019-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .5842  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:39  

Additional Information
 Earth MOID = .868058 au 
 Jupiter MOID = 2.28751 au 
 T_jup = 3.376 
[ 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 18.8   n/a E2015U63  

541558 (2011 SE122)          Discovered 2011-Sep-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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