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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 2456502.5 (2013-Jul-29.0) TDB
Reference: JPL 79 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9984989157707214 3.273e-07  
a 487.1400544747901 0.10616 au
q .7312382532220438 1.7683e-07 au
i 82.60887339118153 1.2309e-05 deg
node 332.7152960821801 1.8895e-05 deg
peri 304.9869169886965 1.1755e-05 deg
M .01159487003602746 3.7907e-06 deg
tp 2456376.013967060896
(2013-Mar-24.51396706)
2.3835e-05 TDB
period 3927165.351279631
10751.99
1283.7
3.515
d
yr
n 9.166917300355008E-5 2.9965e-08 deg/d
Q 973.5488706963582 0.21216 au
  Orbit Determination Parameters
   # obs. used (total)      3201  
   data-arc span      995 days (2.72 yr)  
   first obs. used      2012-01-22  
   last obs. used      2014-10-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .45692  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:32:07  

Additional Information
 Earth MOID = .0723709 au 
 Jupiter MOID = .904662 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 5.6   1. 79 2 parameter fit from 297 observations, autocmod 2.9c
comet total magnitude slope K1 14.75   n/a 79 autocmod 2.9c
comet nuclear magnitude M2 11.1   0.8 79 from 2738 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 79 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 79 autocmod 2.9c

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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