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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 2456501.5 (2013-Jul-28.0) TDB
Reference: JPL 75 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9984989836432512 3.1666e-07  
a 487.1621707020864 0.10272 AU
q .7312383866130918 1.7027e-07 AU
i 82.60884707763515 1.1925e-05 deg
node 332.7152686780775 1.8387e-05 deg
peri 304.98693407 1.1402e-05 deg
M .01150241798122553 3.6383e-06 deg
tp 2456376.013962215272
(2013-Mar-24.51396222)
2.2694e-05 JED
period 3927432.795107737
10752.72
1242.1
3.401
d
yr
n 9.166293066769702E-5 2.899e-08 deg/d
Q 973.5931030175597 0.20528 AU
  Orbit Determination Parameters
   # obs. used (total)      3221  
   data-arc span      952 days (2.61 yr)  
   first obs. used      2012-01-22  
   last obs. used      2014-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .51815  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-22 12:12:28  

Additional Information
 Earth MOID = .072342 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. 75 2 parameter fit from 297 observations, autocmod 2.6
comet total magnitude slope K1 15.   n/a 75 autocmod 2.6
comet nuclear magnitude M2 11.1 mag 0.8 75 from 2734 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 75 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 75 autocmod 2.6

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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