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C/2017 S3 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003532
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458235.5 (2018-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000077962526293 8.3585e-07  
a -2673.667700175152 28.656 au
q .2084458883736399 8.6647e-07 au
i 99.03865266185421 4.4617e-05 deg
node 171.0424918261466 0.00014917 deg
peri 255.8922310339763 0.00015762 deg
M -.0007909769875906512 1.2716e-05 deg
tp 2458346.448368121776
(2018-Aug-15.94836812)
4.4204e-05 TDB
period n/a
n/a
n/a
n/a
d
yr
n 7.129234985434679E-6 1.1461e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      351 days  
   first obs. used      2017-08-17  
   last obs. used      2018-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .59778  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-16 12:04:16  

Additional Information
 Earth MOID = .293729 au 
 Jupiter MOID = 3.83899 au 
 T_jup = -0.089 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.2   1. 14 2 parameter fit from 331 observations, autocmod 2.9c
comet total magnitude slope K1 8.25   n/a 14 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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