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C/2017 K2 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003517
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 2458747.5 (2019-Sep-21.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000374482326085 1.7267e-06  
a -4811.983149445786 22.178 au
q 1.802002642886023 5.8454e-06 au
i 87.54106073961911 1.1709e-05 deg
node 88.27195428426677 3.8068e-05 deg
peri 236.1258629200095 0.00015907 deg
M -.00350264270279428 2.4213e-05 deg
tp 2459933.754604051687
(2022-Dec-20.25460405)
0.0013685 TDB
period n/a
n/a
n/a
n/a
d
yr
n 2.952690502385325E-6 2.0413e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      4225  
   data-arc span      2912 days (7.97 yr)  
   first obs. used      2013-05-12  
   last obs. used      2021-05-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .44209  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-02 23:42:38  

Additional Information
 Earth MOID = 1.09561 au 
 Jupiter MOID = 1.26656 au 
 T_jup = 0.170 
[ 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 5.8   0.8 58 2 parameter fit from 2553 observations, autocmod 2.9c
comet total magnitude slope K1 6.25   n/a 58 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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