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C/2020 H2 (Pruyne)
Classification: Comet          SPK-ID: 1003677
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458974.5 (2020-May-05.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9954595237029604 0.00014133  
a 183.5958154426251 5.7155 au
q .8336124482528915 4.0159e-06 au
i 125.0445023796069 0.00032372 deg
node 277.6341313288875 0.0014337 deg
peri 26.6902003344211 0.0027483 deg
M .002936390295851997 0.00013761 deg
tp 2458967.088538210349
(2020-Apr-27.58853821)
0.001254 TDB
period 908641.5549197968
2487.72
42430
116.2
d
yr
n .0003961958354763735 1.8501e-05 deg/d
Q 366.3580184369972 11.405 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      43 days  
   first obs. used      2020-04-26  
   last obs. used      2020-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .72172  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:34:05  

Additional Information
 Earth MOID = .130618 au 
 Jupiter MOID = 1.43783 au 
 T_jup = -0.621 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 19.8   1. 10 2 parameter fit from 95 observations, autocmod 2.9c
comet total magnitude slope K1 35.25   n/a 10 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.3   C/2020 H2       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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