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541277 (2011 EX43)
Classification: Main-belt Asteroid          SPK-ID: 2541277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09354275001481711 6.255e-08  
a 2.997108251514564 4.503e-08 au
q 2.716750503575792 1.9075e-07 au
i 2.691280742816311 6.6483e-06 deg
node 67.78230686086135 0.00016187 deg
peri 346.42334068682 0.00016933 deg
M 104.4377043114931 4.4365e-05 deg
tp 2458846.697276296417
(2019-Dec-29.19727630)
0.00023596 TDB
period 1895.187009692898
5.19
4.2711e-05
1.169e-07
d
yr
n .1899548689173083 4.281e-09 deg/d
Q 3.277465999453337 4.9242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4108 days (11.25 yr)  
   first obs. used      2009-11-21  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67328  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:42  

Additional Information
 Earth MOID = 1.72774 au 
 Jupiter MOID = 2.02861 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457617.5 (2016-Aug-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09061399703635449 6.2054e-08  
q 2.729027001240208 1.8871e-07 au
tp 2456950.597999473937
(2014-Oct-20.09799947)
0.00026091 TDB
node 67.82133404324733 0.00016202 deg
peri 346.4990618139055 0.00017007 deg
i 2.690137666413759 6.6392e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4108 days (11.25 yr)  
   first obs. used      2009-11-21  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67328  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:42  

Additional Information
 Jupiter MOID = 2.02861 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.850677906795064E-15 -1.142174616975917E-14 -3.771192059673848E-12 -4.433927080105852E-14 -7.580264728451421E-13 3.513267716778319E-16
q -1.142174616975917E-14 3.561028001883468E-14 6.84348822859928E-12 1.309771041973925E-13 1.507310453409155E-12 -2.287014580365051E-16
tp -3.771192059673848E-12 6.84348822859928E-12 6.807595841174744E-8 1.659131585086931E-11 1.355175860627265E-8 -7.437783946157047E-12
node -4.433927080105852E-14 1.309771041973925E-13 1.659131585086931E-11 2.625169596634974E-8 -2.621846019149511E-8 -1.219047839293398E-10
peri -7.580264728451421E-13 1.507310453409155E-12 1.355175860627265E-8 -2.621846019149511E-8 2.892495036503219E-8 1.203325273337795E-10
i 3.513267716778319E-16 -2.287014580365051E-16 -7.437783946157047E-12 -1.219047839293398E-10 1.203325273337795E-10 4.40783799462836E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.05   .38769 MPCxxxxx autocmod 2.8

541277 (2011 EX43)          Discovered 2011-Mar-06 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 EX43 = 2014 UA137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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