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JPL Small-Body Database Browser
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C/2014 E2 (Jacques)
Classification: Comet          SPK-ID: 1003306
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456870.5 (2014-Aug-01.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9990354749651944 1.6832e-06  
a 688.3359303513679 1.2018 au
q .6639172371800959 6.1656e-07 au
i 156.3927523000566 7.8606e-06 deg
node 56.39160285835614 4.5903e-05 deg
peri 344.0371372249398 9.5152e-05 deg
M .001609225640958965 4.2167e-06 deg
tp 2456841.014158293178
(2014-Jul-02.51415829)
4.0923e-05 TDB
period 6596280.064323557
18059.63
17275
47.3
d
yr
n 5.457621515300498E-5 1.4293e-07 deg/d
Q 1376.007943465556 2.4025 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.066990301803521E-8 3.546E-10
A2 [EST] -2.824189606382993E-9 9.848E-11
  Orbit Determination Parameters
   # obs. used (total)      4803  
   data-arc span      452 days (1.24 yr)  
   first obs. used      2014-03-13  
   last obs. used      2015-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .48402  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jan-11 19:59:38  

Additional Information
 Earth MOID = .276301 au 
 Jupiter MOID = 1.03189 au 
 T_jup = -0.918 
[ 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 10.4   2. 52 from 381 observations, assumed slope, autocmod 2.6g
comet total magnitude slope K1 15.   n/a 52 autocmod 2.6g
comet nuclear magnitude M2 13.8   0.9 52 from 4205 observations, autocmod 2.6g
comet nuclear magnitude slope K2 5.   n/a 52 autocmod 2.6g
comet nuclear phase coefficient PC 0.03   n/a 52 autocmod 2.6g

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.5   C/2014 E2       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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