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C/2014 Q2 (Lovejoy)
Classification: Comet          SPK-ID: 1003331
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.


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Orbital Elements at Epoch 2457111.5 (2015-Mar-30.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9977724715525056 8.7992e-07  
a 579.2778733013513 0.22893 au
q 1.290357941782822 3.0238e-07 au
i 80.30130031413425 7.8937e-06 deg
node 94.97505630688683 1.1724e-05 deg
peri 12.39522792899667 2.2561e-05 deg
M .004165968251982169 2.4708e-06 deg
tp 2457052.569206059254
(2015-Jan-30.06920606)
2.2432e-05 TDB
period 5092474.194582355
13942.43
3018.8
8.265
d
yr
n 7.069255262657731E-5 4.1906e-08 deg/d
Q 1157.26538866092 0.45735 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.444550627452827E-9 2.282E-10
A2 [EST] -1.860466469978814E-9 2.323E-10
A3 [EST] -2.46123088152569E-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .46369  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:47:11  

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 8.0   2. 58 from 665 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 58 autocmod 2.8

[ 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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