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(2020 EF)
Classification: Aten [NEO]          SPK-ID: 54013540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147573029674637 0.00019472  
a .9594983909957364 3.4509e-05 au
q .8493889434434446 0.00021738 au
i 6.855487702106433 0.012093 deg
node 352.5701258129103 0.00072075 deg
peri 319.3005969801844 0.0093214 deg
M 311.936012577338 0.03147 deg
tp 2459046.333402584421
(2020-Jul-15.83340258)
0.032481 TDB
period 343.292885488146
0.94
0.01852
5.07e-05
d
yr
n 1.048667232028701 5.6574e-05 deg/d
Q 1.069607838548028 3.8469e-05 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      18 days  
   first obs. used      2020-03-05  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .42894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-24 06:24:08  

Additional Information
 Earth MOID = .0318985 au 
 Jupiter MOID = 4.0392 au 
 T_jup = 6.270 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458927.5 (2020-Mar-19.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1150153159473332 0.00019351  
q .8485923446845043 0.00021409 au
tp 2459046.566176258648
(2020-Jul-16.06617626)
0.033795 TDB
node 352.6675100389193 0.0011894 deg
peri 319.545266211685 0.010612 deg
i 6.87894891818351 0.012022 deg
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      18 days  
   first obs. used      2020-03-05  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .42894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-24 06:24:08  

Additional Information
 Jupiter MOID = 4.0392 au 
 T_jup = 6.270 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.744488655599623E-8 -4.142797078356082E-8 -6.539209879224747E-6 -2.301347405153232E-7 -2.05157987479826E-6 2.326424110519757E-6
q -4.142797078356082E-8 4.583507326963618E-8 7.234592590382771E-6 2.546198796422193E-7 2.26955682266689E-6 -2.573890267146966E-6
tp -6.539209879224747E-6 7.234592590382771E-6 .001142111624204812 4.018598327319358E-5 .0003584413280148497 -.0004062751365541345
node -2.301347405153232E-7 2.546198796422193E-7 4.018598327319358E-5 1.414723691802896E-6 1.26042582482243E-5 -1.429811890216391E-5
peri -2.05157987479826E-6 2.26955682266689E-6 .0003584413280148497 1.26042582482243E-5 .0001126039326586331 -.0001274620780488563
i 2.326424110519757E-6 -2.573890267146966E-6 -.0004062751365541345 -1.429811890216391E-5 -.0001274620780488563 .0001445396361849013

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.368   .39007 6 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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