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541274 (2011 EX38)
Classification: Main-belt Asteroid          SPK-ID: 2541274
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09730237943178258 6.6855e-08  
a 3.080674548380536 8.3604e-08 au
q 2.780917584568178 1.8442e-07 au
i 17.21547667005162 7.1515e-06 deg
node 176.8947832859547 1.9339e-05 deg
peri 142.1945447915659 3.7695e-05 deg
M 171.2064347658375 3.275e-05 deg
tp 2458261.242350981601
(2018-May-22.74235098)
0.00017462 TDB
period 1975.000262747685
5.41
8.0397e-05
2.201e-07
d
yr
n .1822784567629152 7.4201e-09 deg/d
Q 3.380431512192895 9.1739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      3626 days (9.93 yr)  
   first obs. used      2011-03-06  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64331  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:42  

Additional Information
 Earth MOID = 1.78723 au 
 Jupiter MOID = 2.07157 au 
 T_jup = 3.152 
[ 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 16.54   .22699 MPCxxxxx autocmod 2.8

541274 (2011 EX38)          Discovered 2011-Mar-06 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 EX38 = 2018 RE22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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