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(2019 WO2)
Classification: Apollo [NEO]          SPK-ID: 3893488
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4818273786509719 6.9538e-07  
a 1.917117520785755 2.5584e-06 au
q .9933978111797045 2.1945e-08 au
i 7.416594999522006 9.2142e-06 deg
node 256.8127528521483 5.2639e-06 deg
peri 188.9631384291461 1.7732e-05 deg
M 135.9845483643716 0.00027189 deg
tp 2458834.266056177777
(2019-Dec-16.76605618)
1.4736e-05 TDB
period 969.5529481976348
2.65
0.0019408
5.314e-06
d
yr
n .371305147046613 7.4327e-07 deg/d
Q 2.840837230391805 3.7911e-06 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      27 days  
   first obs. used      2019-11-25  
   last obs. used      2019-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .38724  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:09:13  

Additional Information
 Earth MOID = .0117948 au 
 Jupiter MOID = 2.41718 au 
 T_jup = 3.769 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458819.5 (2019-Dec-02.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4832694542702523 6.9367e-07  
q .9934325303289637 2.1367e-08 au
tp 2458834.101789001181
(2019-Dec-16.60178900)
1.4621e-05 TDB
node 256.8563790827008 5.3114e-06 deg
peri 188.6630609739479 1.777e-05 deg
i 7.427630270881199 9.2046e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      123  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      27 days  
   first obs. used      2019-11-25  
   last obs. used      2019-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .38724  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:09:13  

Additional Information
 Jupiter MOID = 2.41718 au 
 T_jup = 3.769 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.811751294780509E-13 -4.545903888780401E-15 -1.933792777789204E-13 -1.118963548577946E-12 2.592936617845057E-12 5.083042407386987E-12
q -4.545903888780401E-15 4.565547375151568E-16 -2.874884666112853E-13 -2.098768868397307E-14 -3.385592939738467E-13 -6.140698249481539E-14
tp -1.933792777789204E-13 -2.874884666112853E-13 2.137875105569037E-10 1.379078425931583E-11 2.419712362689477E-10 9.284201895084729E-12
node -1.118963548577946E-12 -2.098768868397307E-14 1.379078425931583E-11 2.821098178156061E-11 -1.578390503743721E-11 -2.060754007398426E-11
peri 2.592936617845057E-12 -3.385592939738467E-13 2.419712362689477E-10 -1.578390503743721E-11 3.157724499174471E-10 4.965118450277889E-11
i 5.083042407386987E-12 -6.140698249481539E-14 9.284201895084729E-12 -2.060754007398426E-11 4.965118450277889E-11 8.47243374800948E-11

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 25.1   .38041 MPO529382 autocmod 2.8

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