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C/2007 E2 (Lovejoy)
Classification: Comet          SPK-ID: 1002449
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454235.5 (2007-May-15.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9991756528860143 3.4278e-05  
a 1325.82284461797 55.134 au
q 1.092938235617152 3.8025e-06 au
i 95.88290133343503 0.0003492 deg
node 232.4318366430011 0.00020671 deg
peri 340.5337773673682 0.0007388 deg
M .0009901660606251505 6.1778e-05 deg
tp 2454187.001064201281
(2007-Mar-27.50106420)
0.00069155 TDB
period 17633018.92665918
48276.57
1.0999e+06
3011
d
yr
n 2.041624304365259E-5 1.2735e-06 deg/d
Q 2650.552751000323 110.22 au
  Orbit Determination Parameters
   # obs. used (total)      1648  
   data-arc span      158 days  
   first obs. used      2007-03-18  
   last obs. used      2007-08-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .59581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:05  

Additional Information
 Earth MOID = .112833 au 
 Jupiter MOID = 2.95058 au 
 T_jup = -0.129 
[ 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 10.3   1. 49 2 parameter fit from 153 observations, autocmod 2.9c
comet total magnitude slope K1 17.5   n/a 49 autocmod 2.9c
comet nuclear magnitude M2 16.1   0.8 49 from 1192 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 49 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 49 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2007.2   C/2007 E2       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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