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C/2015 X5 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003425
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.


Orbital Elements at Epoch 2457945.5 (2017-Jul-11.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.003043177275224 1.4839e-05  
a -2235.080421757476 10.894 au
q 6.801745947790341 1.3299e-05 au
i 124.2845326533225 3.6806e-05 deg
node 122.311472970474 2.4584e-05 deg
peri 27.75050581234631 0.00013513 deg
M -.001613982303017294 1.1793e-05 deg
tp 2458118.535186788414
(2017-Dec-31.03518679)
0.0019499 TDB
period n/a
n/a
n/a
n/a
d
yr
n 9.327480340694278E-6 6.8197e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      1531 days (4.19 yr)  
   first obs. used      2015-12-06  
   last obs. used      2020-02-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .47863  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:20  

Additional Information
 Earth MOID = 5.89273 au 
 Jupiter MOID = 1.85513 au 
 T_jup = -1.810 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.6   0.6 34 2 parameter fit from 202 observations, autocmod 2.9c
comet total magnitude slope K1 10.5   n/a 34 autocmod 2.9c
comet nuclear magnitude M2 11.4   0.5 34 from 12 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 34 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 34 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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