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C/2017 T2 (PANSTARRS)
Classification: Comet          SPK-ID: 1003539
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.


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Orbital Elements at Epoch 2458825.5 (2019-Dec-08.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9996773714118676 1.4968e-06  
a 5006.038531991383 23.229 au
q 1.61509114371261 1.2778e-06 au
i 57.23154110947986 1.2958e-05 deg
node 64.37881409003477 6.0083e-06 deg
peri 92.99342460700728 5.7304e-05 deg
M 359.9995855208217 2.885e-06 deg
tp 2458974.449800717149
(2020-May-04.94980072)
8.0024e-05 TDB
period 129371826.3074739
354200.76
9.0045e+05
2465
d
yr
n 2.78267695738019E-6 1.9368e-08 deg/d
Q 10010.46197283905 46.45 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.328887062262928E-8 6.508E-10
A2 [EST] 4.573764377829526E-10 5.111E-10
A3 [EST] -3.452111106567474E-10 1.391E-10
DT [EST] -59.37793463488362 2.665
  Orbit Determination Parameters
   # obs. used (total)      6636  
   data-arc span      1101 days (3.01 yr)  
   first obs. used      2017-09-15  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .49904  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:23:26  

Additional Information
 Earth MOID = 1.2022 au 
 Jupiter MOID = .998427 au 
 T_jup = 0.854 
[ 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 10.2   1. 41 2 parameter fit from 4392 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 41 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.3   C/2017 T2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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