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(2020 EJ)
Classification: Apollo [NEO]          SPK-ID: 54013543
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2036898978117373 0.00044185  
a 1.096290822117681 0.00047946 au
q .872987456588585 0.00010289 au
i 10.27910311979084 0.022165 deg
node 142.6579365255737 0.024162 deg
peri 133.4107352244383 0.051488 deg
M 164.7474796154893 0.068238 deg
tp 2459008.631635836124
(2020-Jun-08.13163584)
0.046402 TDB
period 419.263537507261
1.15
0.27505
0.000753
d
yr
n .8586484819080299 0.00056329 deg/d
Q 1.319594187646776 0.00057712 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      25 days  
   first obs. used      2020-03-05  
   last obs. used      2020-03-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .50024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:20:36  

Additional Information
 Earth MOID = .0694833 au 
 Jupiter MOID = 3.78404 au 
 T_jup = 5.631 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458917.5 (2020-Mar-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038301519958243 0.00044178  
q .8730623536693386 0.00010339 au
tp 2459008.627166592074
(2020-Jun-08.12716659)
0.046245 TDB
node 142.687698578813 0.023991 deg
peri 133.361074928654 0.051123 deg
i 10.28033929126342 0.022159 deg
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      25 days  
   first obs. used      2020-03-05  
   last obs. used      2020-03-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .50024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:20:36  

Additional Information
 Jupiter MOID = 3.78404 au 
 T_jup = 5.631 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.951703755670081E-7 -4.55726749084853E-8 -2.042230984289135E-5 1.059110122194865E-5 -2.25510897404083E-5 9.788406932154045E-6
q -4.55726749084853E-8 1.068901393438006E-8 4.759830742905261E-6 -2.467017227240089E-6 5.246399912217582E-6 -2.28337986240289E-6
tp -2.042230984289135E-5 4.759830742905261E-6 .002138599614067141 -.001109345081824517 .002363289482186796 -.001024651772730126
node 1.059110122194865E-5 -2.467017227240089E-6 -.001109345081824517 .0005755576957013338 -.001226251466157497 .0005314781643828898
peri -2.25510897404083E-5 5.246399912217582E-6 .002363289482186796 -.001226251466157497 .002613569786159253 -.001131927099396055
i 9.788406932154045E-6 -2.28337986240289E-6 -.001024651772730126 .0005314781643828898 -.001131927099396055 .0004910306378259944

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 23.7   .41175 E2020G03 autocmod 2.8

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