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C/2020 O2 (Amaral)
Classification: Hyperbolic Comet          SPK-ID: 1003707
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

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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 2459060.5 (2020-Jul-30.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001101005700421 0.0015603  
a -4418.166224920295 6261.5 au
q 4.864426199044964 0.0026865 au
i 71.7517007102926 0.0066059 deg
node 256.7532334248391 0.0058802 deg
peri 10.22390903535594 0.060884 deg
M -.001322825446526107 0.0028118 deg
tp 2459454.650011637732
(2021-Aug-28.15001164)
0.35126 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.356147171046975E-6 7.1346e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      53 days  
   first obs. used      2020-07-23  
   last obs. used      2020-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .40336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-24 20:18:34  

Additional Information
 Earth MOID = 3.86154 au 
 Jupiter MOID = .409026 au 
 T_jup = 0.856 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.7   0.4 5 from 70 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 5 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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