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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 2456500.5 (2013-Jul-27.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9984993537010129 3.1894e-07  
a 487.2823915679557 0.10351 AU
q .731238517468012 1.7082e-07 AU
i 82.60884674440275 1.1994e-05 deg
node 332.7152671760657 1.8463e-05 deg
peri 304.9869553568691 1.1402e-05 deg
M .01140653076253264 3.6348e-06 deg
tp 2456376.013980845316
(2013-Mar-24.51398085)
2.2695e-05 JED
period 3928886.690324044
10756.71
1251.8
3.427
d
yr
n 9.162901055064741E-5 2.9195e-08 deg/d
Q 973.8335446184434 0.20686 AU
  Orbit Determination Parameters
   # obs. used (total)      3214  
   data-arc span      914 days (2.50 yr)  
   first obs. used      2012-01-22  
   last obs. used      2014-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .50687  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-28 13:13:16  

Additional Information
 Earth MOID = .0723041 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. 69 2 parameter fit from 297 observations, autocmod 2.5c
comet total magnitude slope K1 15.   n/a 69 autocmod 2.5c
comet nuclear magnitude M2 11.1 mag 0.8 69 from 2724 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 69 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 69 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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