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(2019 WE)
Classification: Apollo [NEO]          SPK-ID: 3893231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .461371321889102 0.00024616  
a 1.726616416094683 0.00075091 au
q .9300051178056554 2.0565e-05 au
i .4361539951502502 0.00017452 deg
node 240.0773912688103 0.0005283 deg
peri 215.2221176714581 0.00040101 deg
M 70.8406468942153 0.044938 deg
tp 2458837.430686433099
(2019-Dec-19.93068643)
0.0029368 TDB
period 828.6902429299809
2.27
0.5406
0.00148
d
yr
n .434420464185938 0.00028339 deg/d
Q 2.523227714383711 0.0010974 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      4 days  
   first obs. used      2019-11-17  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .50403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-30 06:13:49  

Additional Information
 Earth MOID = 4.2851E-5 au 
 Jupiter MOID = 2.68497 au 
 T_jup = 4.036 
[ show covariance matrix ]

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 26.8   .31418 E2019-WI7 autocmod 2.8

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