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C/2012 F6 (Lemmon)
Classification: Comet          SPK-ID: 1003183
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456499.5 (2013-Jul-26.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9984996097857649 3.2012e-07  
a 487.3656753048296 0.10393 AU
q .7312386899814436 1.711e-07 AU
i 82.60884355735439 1.2033e-05 deg
node 332.7152616140804 1.8505e-05 deg
peri 304.9869764104172 1.1403e-05 deg
M .01131199982312782 3.6187e-06 deg
tp 2456376.013999659232
(2013-Mar-24.51399966)
2.2695e-05 JED
period 3929893.990255075
10759.46
1257
3.441
d
yr
n 9.16055244473996E-5 2.9301e-08 deg/d
Q 974.0001119196776 0.2077 AU
  Orbit Determination Parameters
   # obs. used (total)      3210  
   data-arc span      893 days (2.44 yr)  
   first obs. used      2012-01-22  
   last obs. used      2014-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .50243  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 11:52:52  

Additional Information
 Earth MOID = .0722581 AU 
 T_jup = 0.147 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5.5 mag 1. 68 2 parameter fit from 297 observations, autocmod 2.5c
comet total magnitude slope K1 15.   n/a 68 autocmod 2.5c
comet nuclear magnitude M2 11.1 mag 0.8 68 from 2720 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 68 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 68 autocmod 2.5c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.2   C/2012 F6       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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