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C/2020 H3 (Wierzchos)
Classification: Hyperbolic Comet          SPK-ID: 1003678
Ephemeris | Orbit Diagram | Orbital Elements | 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 2458982.5 (2020-May-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.002165268687532 0.00013096  
a -1064.232469562615 64.351 au
q 2.304349242598755 4.1092e-05 au
i 62.36872739382149 0.00093615 deg
node 270.56927253 0.0008059 deg
peri 29.60941311621433 0.0014839 deg
M -.0006123976852745706 5.555e-05 deg
tp 2459004.071692663076
(2020-Jun-03.57169266)
0.003892 TDB
period n/a
n/a
n/a
n/a
d
yr
n 2.838894911212991E-5 2.5749e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      74 days  
   first obs. used      2020-04-25  
   last obs. used      2020-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .46099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-09 22:14:14  

Additional Information
 Earth MOID = 1.3719 au 
 Jupiter MOID = 2.72506 au 
 T_jup = 0.946 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.7   0.6 9 from 59 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 9 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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