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

[ hide orbit diagram ]

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 2458826.5 (2019-Dec-09.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9996780955197064 1.3906e-06  
a 5017.303398424834 21.677 au
q 1.615092442945092 1.2216e-06 au
i 57.23152652792766 1.2452e-05 deg
node 64.37880885301793 5.8288e-06 deg
peri 92.99338118174644 5.5268e-05 deg
M 359.9995896891529 2.6593e-06 deg
tp 2458974.449829843093
(2020-May-04.94982984)		 7.6455e-05 TDB
period 129808751.3979863
355396.99		 8.4126e+05
2303		 d
yr
n 2.773310706119191E-6 1.7973e-08 deg/d
Q 10032.99170440672 43.348 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.392074373357493E-8 6.221E-10
A2 [EST] 1.830547672298942E-10 5.02E-10
A3 [EST] -4.55133994134565E-10 1.341E-10
DT [EST] -55.60980346237262 2.327
   Orbit Determination Parameters
   # obs. used (total)      6822  
   data-arc span      1250 days (3.42 yr)  
   first obs. used      2017-09-15  
   last obs. used      2021-02-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .49697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-25 21:42:23  

Additional Information
 Earth MOID = 1.20228 au 
 Jupiter MOID = .998424 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. 46 2 parameter fit from 4569 observations, autocmod 2.9b
comet total magnitude slope K1 4.5   n/a 46 autocmod 2.9b

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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