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C/2020 P1 (NEOWISE)
Classification: Hyperbolic Comet          SPK-ID: 1003709
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459101.5 (2020-Sep-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000296889185875 7.0786e-06  
a -1152.562177291259 27.489 au
q .3421832464863244 2.9646e-06 au
i 45.05381720839782 0.00027258 deg
node 53.53936560237292 0.00022305 deg
peri 8.894962102747048 0.00017682 deg
M -.001037249310104051 3.7106e-05 deg
tp 2459142.678983901531
(2020-Oct-20.17898390)
9.373e-05 TDB
period n/a
n/a
n/a
n/a
d
yr
n 2.518880292394701E-5 9.0115e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      129 days  
   first obs. used      2020-08-02  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .6498  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:34:09  

Additional Information
 Earth MOID = .643082 au 
 Jupiter MOID = 1.22825 au 
 T_jup = 0.539 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.3   0.9 10 2 parameter fit from 105 observations, autocmod 2.9c
comet total magnitude slope K1 5.25   n/a 10 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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