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541268 (2011 EX20)
Classification: Main-belt Asteroid          SPK-ID: 2541268
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09093093241765048 7.1251e-08  
a 3.111560457714419 8.3103e-08 au
q 2.828623364020555 2.0524e-07 au
i 11.84966680210277 7.9067e-06 deg
node 106.4386825266596 2.9429e-05 deg
peri 166.5443057170594 4.9827e-05 deg
M 190.3352539020068 4.1603e-05 deg
tp 2460145.332673390053
(2023-Jul-19.83267339)
0.00023582 TDB
period 2004.775713535472
5.49
8.0314e-05
2.199e-07
d
yr
n .1795712096716949 7.1939e-09 deg/d
Q 3.394497551408282 9.0659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      6265 days (17.15 yr)  
   first obs. used      2003-11-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50634  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:42  

Additional Information
 Earth MOID = 1.81179 au 
 Jupiter MOID = 1.74723 au 
 T_jup = 3.180 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.15   n/a MPCxxxxx  

541268 (2011 EX20)          Discovered 2011-Mar-07 by Wildberg at Wildberg
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 EX20 = 2015 AG20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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