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C/2017 T2 (PANSTARRS)
Classification: Comet          SPK-ID: 1003539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458830.5 (2019-Dec-13.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9996772813343349 1.2879e-06  
a 5004.654134988163 19.975 au
q 1.615095304558874 1.1605e-06 au
i 57.23143893598023 1.1564e-05 deg
node 64.37877972206583 5.798e-06 deg
peri 92.99332784795818 5.3047e-05 deg
M 359.9995992675174 2.3993e-06 deg
tp 2458974.449969455462
(2020-May-04.94996946)
7.1515e-05 TDB
period 129318164.2398124
354053.84
7.7422e+05
2120
d
yr
n 2.783831661361993E-6 1.6667e-08 deg/d
Q 10007.69317467177 39.944 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.597444355808071E-8 6.067E-10
A2 [EST] -7.074937425211845E-10 5.23E-10
A3 [EST] -3.228501450914695E-10 1.28E-10
DT [EST] -46.7207947455004 1.92
  Orbit Determination Parameters
   # obs. used (total)      6871  
   data-arc span      1434 days (3.93 yr)  
   first obs. used      2017-09-15  
   last obs. used      2021-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .5056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-04 23:42:58  

Additional Information
 Earth MOID = 1.20234 au 
 Jupiter MOID = .998418 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. 54 2 parameter fit from 4615 observations, autocmod 2.9e
comet total magnitude slope K1 4.5   n/a 54 autocmod 2.9e

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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