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C/2014 Q2 (Lovejoy)
Classification: Comet          SPK-ID: 1003331
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457111.5 (2015-Mar-30.0) TDB
Reference: JPL 59 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9977739281805434 8.7992e-07  
a 579.657050281067 0.22923 au
q 1.290358224579994 3.0238e-07 au
i 80.3012992044068 7.8937e-06 deg
node 94.97505956666024 1.1724e-05 deg
peri 12.39526308063283 2.2561e-05 deg
M .004161877929295174 2.47e-06 deg
tp 2457052.569252789967
(2015-Jan-30.06925279)
2.2432e-05 TDB
period 5097475.071596998
13956.13
3023.8
8.279
d
yr
n 7.062319971036464E-5 4.1893e-08 deg/d
Q 1158.023742337554 0.45795 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.32016616305796E-9 2.282E-10
A2 [EST] -1.481895330478998E-9 2.323E-10
A3 [EST] -2.410755896086111E-9 1.288E-10
  Orbit Determination Parameters
   # obs. used (total)      7890  
   data-arc span      802 days (2.20 yr)  
   first obs. used      2014-07-01  
   last obs. used      2016-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .46333  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:00  

Additional Information
 Earth MOID = .320031 au 
 Jupiter MOID = 3.81173 au 
 T_jup = 0.246 
[ 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 9.1   1. 59 2 parameter fit from 663 observations, autocmod 2.9c
comet total magnitude slope K1 6.5   n/a 59 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.1   C/2014 Q2       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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