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C/2017 K1 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003516
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458239.5 (2018-May-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.002094016156089 3.0905e-05  
a -3479.295245855069 51.333 au
q 7.285700456623996 3.5218e-05 au
i 154.0082962659074 7.4529e-05 deg
node 225.6418434935387 5.4967e-05 deg
peri 4.202590776967126 0.00041412 deg
M .0002268158703655914 5.0169e-06 deg
tp 2458192.271267478849
(2018-Mar-14.77126748)
0.0060946 TDB
period n/a
n/a
n/a
n/a
d
yr
n 4.80249751068407E-6 1.0628e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      1364 days (3.73 yr)  
   first obs. used      2015-09-01  
   last obs. used      2019-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .57095  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:33  

Additional Information
 Earth MOID = 6.27828 au 
 Jupiter MOID = 1.86222 au 
 T_jup = -2.990 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.9   0.7 15 from 122 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.25   n/a 15 autocmod 2.9c
comet nuclear magnitude M2 11.6   0.05 15 from 3 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 15 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 15 autocmod 2.9c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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