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C/2012 C2 (Bruenjes)
Classification: Hyperbolic Comet          SPK-ID: 1003172
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

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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 2455974.5 (2012-Feb-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.003077829586966 0.00089417  
a -260.6751764428434 75.635 au
q .8023137706433678 0.00029666 au
i 162.7892307787573 0.0028467 deg
node 117.9966890339537 0.0057628 deg
peri 62.65860349207035 0.044804 deg
M -.005770682456891763 0.0025054 deg
tp 2455999.141810725676
(2012-Mar-12.64181073)
0.026462 TDB
period n/a
n/a
n/a
n/a
d
yr
n .0002341825656050061 0.00010192 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      16 days  
   first obs. used      2012-02-11  
   last obs. used      2012-02-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .78241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:32:02  

Additional Information
 Earth MOID = .0522726 au 
 Jupiter MOID = .420191 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 16.6   1. 10 from 79 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 37.75   n/a 10 autocmod 2.9c
comet nuclear magnitude M2 19.6   0.8 10 from 122 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 10 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 10 autocmod 2.9c

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