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JPL Small-Body Database Browser
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C/2015 K4 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003393
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457181.5 (2015-Jun-08.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000112014890995 0.00050145  
a -17923.12322901907 80234 au
q 2.00765669478841 9.7937e-05 au
i 80.25453165069882 0.0060827 deg
node 250.7711826220325 0.0013584 deg
peri 357.5383991951015 0.0013105 deg
M 1.529429346616299E-5 0.0001027 deg
tp 2457144.265469558845
(2015-May-01.76546956)
0.0022679 TDB
period n/a
n/a
n/a
n/a
d
yr
n 4.10755642274955E-7 2.7582e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      51 days  
   first obs. used      2015-05-24  
   last obs. used      2015-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .63463  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:11  

Additional Information
 Earth MOID = .994278 au 
 Jupiter MOID = 3.32119 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.4   0.9 11 2 parameter fit from 65 observations, autocmod 2.9c
comet total magnitude slope K1 12.   n/a 11 autocmod 2.9c
comet nuclear magnitude M2 16.6   0.5 11 from 62 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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