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C/2015 E61-B (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003535
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457937.5 (2017-Jul-03.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000016466064013 0.00037038  
a -63413.76562230677 1.4264e+06 au
q 1.044175124039388 7.7075e-05 au
i 6.35127665373667 0.00032437 deg
node 235.2577873438787 0.0022051 deg
peri 68.31621822963767 0.011343 deg
M 3.336867405451742E-6 0.00011259 deg
tp 2457883.435749016260
(2017-May-09.93574902)
0.0054445 TDB
period n/a
n/a
n/a
n/a
d
yr
n 6.172040386641657E-8 2.0825e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      189 days  
   first obs. used      2017-06-11  
   last obs. used      2017-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .79348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:07  

Additional Information
 Earth MOID = .102921 au 
 Jupiter MOID = .0781807 au 
[ 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 13.7   0.0004 3 from 3 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 3 autocmod 2.9c
comet nuclear magnitude M2 16.1   0.8 3 from 52 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 3 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 3 autocmod 2.9c

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