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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 2458990.5 (2020-May-21.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.002305611305995 8.0887e-05  
a -999.4737210874138 35.053 au
q 2.304397911383971 2.6841e-05 au
i 62.36924795619903 0.0006625 deg
node 270.5699271587313 0.00054436 deg
peri 29.60847298361917 0.00091559 deg
M -.0004232485490571597 2.2259e-05 deg
tp 2459004.069019724933
(2020-Jun-03.56901973)
0.0024062 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.119227163325902E-5 1.6409e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      85 days  
   first obs. used      2020-04-25  
   last obs. used      2020-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .46273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-06 07:15:26  

Additional Information
 Earth MOID = 1.37186 au 
 Jupiter MOID = 2.72502 au 
 T_jup = 0.946 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.542633082540971E-9 2.137022594254407E-9 -1.625544201656977E-8 4.247884999526307E-8 -6.939292657767984E-9 5.182784909606047E-8
q 2.137022594254407E-9 7.204386611739234E-10 3.327875852062998E-9 1.445829254806913E-8 9.83832696077191E-10 1.751479040794604E-8
tp -1.625544201656977E-8 3.327875852062998E-9 5.789832400730124E-6 1.661490486629814E-7 2.200977600717189E-6 1.275248676296299E-7
node 4.247884999526307E-8 1.445829254806913E-8 1.661490486629814E-7 2.963263742541523E-7 5.564594065210065E-8 3.589823483899844E-7
peri -6.939292657767984E-9 9.83832696077191E-10 2.200977600717189E-6 5.564594065210065E-8 8.38312056024268E-7 3.880304450765514E-8
i 5.182784909606047E-8 1.751479040794604E-8 1.275248676296299E-7 3.589823483899844E-7 3.880304450765514E-8 4.389020170474279E-7

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.8   0.6 11 from 62 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 11 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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