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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 2459274.5 (2021-Mar-01.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9997691655089063 0.00023819  
a 14041.97440297725 14488 au
q 3.241372015262497 0.00044639 au
i 50.7865159210474 0.0029278 deg
node 323.6909449854081 0.00027504 deg
peri 270.9135020782656 0.002327 deg
M 359.9995783239126 0.00065267 deg
tp 2459986.397003936314
(2023-Feb-10.89700394)
0.12135 TDB
period 607772005.7546414
1663989.06
9.406e+08
2.575e+06
d
yr
n 5.923273803192123E-7 9.167e-07 deg/d
Q 28080.70743393923 28972 au
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      164 days  
   first obs. used      2020-12-22  
   last obs. used      2021-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .35415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-01 22:12:57  

Additional Information
 Earth MOID = 2.71684 au 
 Jupiter MOID = .741857 au 
 T_jup = 1.412 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 5.673567578133704E-8 -9.785090998514882E-8 -2.819425179765353E-5 3.560535497238341E-8 -2.65389578115232E-7 -3.530509802940079E-7
q -9.785090998514882E-8 1.992682857462847E-7 5.227315772684964E-5 -9.019029448417648E-8 1.395347979910452E-7 9.160155040556277E-7
tp -2.819425179765353E-5 5.227315772684964E-5 .01472669369736621 -2.345367516689644E-5 .0001092798953694891 .0002370705078767208
node 3.560535497238341E-8 -9.019029448417648E-8 -2.345367516689644E-5 7.564446929617318E-8 1.354990166158503E-9 -7.933862448976681E-7
peri -2.65389578115232E-7 1.395347979910452E-7 .0001092798953694891 1.354990166158503E-9 5.415021864474721E-6 -1.298968720752792E-7
i -3.530509802940079E-7 9.160155040556277E-7 .0002370705078767208 -7.933862448976681E-7 -1.298968720752792E-7 8.57182538450782E-6

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.0   0.3 6 2 parameter fit from 67 observations, autocmod 2.9c
comet total magnitude slope K1 6.25   n/a 6 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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