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C/2015 V2 (Johnson)
Classification: Hyperbolic Comet          SPK-ID: 1003415
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457771.5 (2017-Jan-18.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001702846004676 7.5632e-07  
a -961.302420156157 0.42681 au
q 1.636949985448245 5.5523e-07 au
i 49.87480898168563 6.0853e-06 deg
node 69.85209858965102 8.4709e-06 deg
peri 164.8980781734215 2.9306e-05 deg
M -.004806415877941709 3.1997e-06 deg
tp 2457916.847419366875
4.5478e-05 TDB
period n/a
n 3.306846381503146E-5 2.2023e-08 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.286714636607916E-8 4.056E-10
A2 [EST] -4.439976970906909E-9 3.267E-10
A3 [EST] -4.37470226177812E-9 1.784E-10
  Orbit Determination Parameters
   # obs. used (total)      5882  
   data-arc span      1750 days (4.79 yr)  
   first obs. used      2015-01-11  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .41296  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:49:39  

Additional Information
 Earth MOID = .642464 au 
 Jupiter MOID = 3.349 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 7.5   1. 53 from 683 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 8.   n/a 53 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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