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(2020 DR2)
Classification: Apollo [NEO, PHA]          SPK-ID: 3994619
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6905754922301028 1.1011e-05  
a 2.28312706785856 8.4129e-05 au
q .7064554691482635 1.2692e-06 au
i 19.7356400073286 0.00027456 deg
node 168.9531384958411 0.00017231 deg
peri 252.5641062535737 0.00052247 deg
M 43.48397044843991 0.00251 deg
tp 2458848.298040970979
(2019-Dec-30.79804097)
0.00037306 TDB
period 1260.066748399088
3.45
0.069646
0.0001907
d
yr
n .2856991508246522 1.5791e-05 deg/d
Q 3.859798666568857 0.00014223 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      61 days  
   first obs. used      2020-02-20  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .34455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-22 07:45:05  

Additional Information
 Earth MOID = .00877473 au 
 Jupiter MOID = 2.07008 au 
 T_jup = 3.181 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458910.5 (2020-Mar-02.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6906000690657761 1.1011e-05  
q .7064784866631715 1.2696e-06 au
tp 2458848.300907155355
(2019-Dec-30.80090716)
0.00037301 TDB
node 168.952902833366 0.00017231 deg
peri 252.5679683159694 0.00052247 deg
i 19.73509385809901 0.00027455 deg
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      61 days  
   first obs. used      2020-02-20  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .34455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-22 07:45:05  

Additional Information
 Jupiter MOID = 2.07008 au 
 T_jup = 3.181 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.212424419899717E-10 9.660884606218523E-12 4.101023326297232E-9 -1.875935118180088E-9 5.628422570766853E-9 3.006504948218503E-9
q 9.660884606218523E-12 1.612007002208811E-12 3.415937018922068E-10 -1.548053682139867E-10 5.45032198381357E-10 2.509349853136277E-10
tp 4.101023326297232E-9 3.415937018922068E-10 1.391327913666662E-7 -6.346369236167858E-8 1.92203301082342E-7 1.017285548903683E-7
node -1.875935118180088E-9 -1.548053682139867E-10 -6.346369236167858E-8 2.969201542387163E-8 -8.818248168323308E-8 -4.719683608385055E-8
peri 5.628422570766853E-9 5.45032198381357E-10 1.92203301082342E-7 -8.818248168323308E-8 2.729789859269755E-7 1.412193900257032E-7
i 3.006504948218503E-9 2.509349853136277E-10 1.017285548903683E-7 -4.719683608385055E-8 1.412193900257032E-7 7.537582551042606E-8

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 18.815   .31864 35 autocmod 2.8

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