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C/2021 C5 (PANSTARRS)
Classification: Comet          SPK-ID: 1003767
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.


Orbital Elements at Epoch 2459268.5 (2021-Feb-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9997779206947848 0.00030508  
a 14595.33159369054 20048 au
q 3.241321099712663 0.00054936 au
i 50.78386433366459 0.012108 deg
node 323.6911834076917 0.0011017 deg
peri 270.9128618308659 0.0040047 deg
M 359.9995987364441 0.00082685 deg
tp 2459986.371303320221
(2023-Feb-10.87130332)
0.18544 TDB
period 644049691.0463473
1763311.95
1.327e+09
3.633e+06
d
yr
n 5.589630815832402E-7 1.1517e-06 deg/d
Q 29187.42186628137 40092 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      113 days  
   first obs. used      2020-12-22  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .36394  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-31 22:43:00  

Additional Information
 Earth MOID = 2.71681 au 
 Jupiter MOID = .741824 au 
 T_jup = 1.412 
[ 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 7.8   0.3 5 2 parameter fit from 63 observations, autocmod 2.9c
comet total magnitude slope K1 11.25   n/a 5 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2023.1   C/2021 C5       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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