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541455 (2011 JE20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2541455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04432343567694452 8.8613e-08  
a 3.213826101289398 4.798e-08 au
q 3.071378286812012 2.8347e-07 au
i 17.26405559302391 7.5588e-06 deg
node 49.73251305045794 2.0348e-05 deg
peri 312.7879369116263 6.5398e-05 deg
M 90.56966761793666 6.0224e-05 deg
tp 2458671.065472932063
(2019-Jul-06.56547293)
0.00035701 TDB
period 2104.417900134936
5.76
4.7126e-05
1.29e-07
d
yr
n .1710686836378443 3.8309e-09 deg/d
Q 3.356273915766784 5.0107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      9747 days (26.69 yr)  
   first obs. used      1994-05-11  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54767  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:17  

Additional Information
 Earth MOID = 2.09533 au 
 Jupiter MOID = 1.88284 au 
 T_jup = 3.119 
[ 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 15.88   n/a MPCxxxxx  

541455 (2011 JE20)          Discovered 2008-Sep-07 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 JE20 = 2008 UZ226 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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