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C/2017 K2 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003517
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 2458687.5 (2019-Jul-23.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000372018235186 2.2348e-06  
a -4845.651657488193 29.098 au
q 1.802670777945197 6.7815e-06 au
i 87.54127832326898 1.325e-05 deg
node 88.27106886841892 4.8545e-05 deg
peri 236.1167033424461 0.00019661 deg
M -.003641732463703294 3.2799e-05 deg
tp 2459933.827705840391
(2022-Dec-20.32770584)
0.0023098 TDB
period n/a
n/a
n/a
n/a
d
yr
n 2.921970238355326E-6 2.632e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      3707  
   data-arc span      2742 days (7.51 yr)  
   first obs. used      2013-05-12  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .4473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-17 00:12:29  

Additional Information
 Earth MOID = 1.09594 au 
 Jupiter MOID = 1.26863 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 52 2 parameter fit from 2129 observations, autocmod 2.8
comet total magnitude slope K1 6.25   n/a 52 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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