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541946 (2012 EJ7)
Classification: Main-belt Asteroid          SPK-ID: 2541946
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2280637685042757 6.0998e-08  
a 2.676076735177527 3.2164e-08 au
q 2.065760590146322 1.7712e-07 au
i 15.06143332954914 6.5964e-06 deg
node 77.91621213765455 2.3251e-05 deg
peri 30.45204219903312 3.2431e-05 deg
M 45.83712580546774 1.9854e-05 deg
tp 2458996.907794361183
(2020-May-27.40779436)
8.6167e-05 TDB
period 1598.991925039751
4.38
2.8828e-05
7.893e-08
d
yr
n .2251418499133762 4.059e-09 deg/d
Q 3.286392880208732 3.95e-08 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      5246 days (14.36 yr)  
   first obs. used      2006-11-22  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56648  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:51  

Additional Information
 Earth MOID = 1.09534 au 
 Jupiter MOID = 1.95895 au 
 T_jup = 3.293 
[ 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 17.3   .38345 MPO528806 autocmod 2.8

541946 (2012 EJ7)          Discovered 2012-Mar-13 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2012 EJ7 = 2016 CR34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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