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JPL Small-Body Database Browser
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C/2017 S3 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003532
[ Ephemeris | Orbit Diagram | Orbital Elements | 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 2458236.5 (2018-Apr-28.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000077507255064 8.6926e-07  
a -2689.369838746857 30.152 au
q .2084456740533362 8.8923e-07 au
i 99.03862155849272 4.4645e-05 deg
node 171.0426735355091 0.00015013 deg
peri 255.8923245739346 0.0001637 deg
M -.0007769933492503875 1.3067e-05 deg
tp 2458346.448427520487
(2018-Aug-15.94842752)		 4.3482e-05 TDB
period n/a
n/a		 n/a
n/a		 d
yr
n 7.066889147692523E-6 1.1885e-07 deg/d
Q n/a n/a au
   Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      351 days  
   first obs. used      2017-08-17  
   last obs. used      2018-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .60262  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2018-Dec-10 10:52:28  

Additional Information
 Earth MOID = .293667 au 
 Jupiter MOID = 3.839 au 
 T_jup = -0.089 
 Not valid before 2018-7-15 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.3   1. 13 from 268 observations, assumed slope, autocmod 2.6q
comet total magnitude slope K1 14.   n/a 13 autocmod 2.6q
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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