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308P/Lagerkvist-Carsenty
Classification: Jupiter-family Comet          SPK-ID: 1000178
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454118.5 (2007-Jan-18.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .36228370623654 2.2866e-07  
a 6.674132051771542 1.4956e-07 au
q 4.256202756143664 1.5043e-06 au
i 4.840383523123997 2.7335e-05 deg
node 63.14297716628577 0.00023139 deg
peri 333.7019156865814 0.00078067 deg
M 186.2795806074172 0.00034762 deg
tp 2457157.557995997741
(2015-May-15.05799600)
0.0060743 TDB
period 6297.825450713244
17.24
0.00021169
5.796e-07
d
yr
n .05716258775625944 1.9215e-09 deg/d
Q 9.092061347399419 2.0375e-07 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      6758 days (18.50 yr)  
   first obs. used      1997-10-01  
   last obs. used      2016-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .51951  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-28 08:15:29  

Additional Information
 Earth MOID = 3.26332 au 
 Jupiter MOID = .293426 au 
 T_jup = 2.883 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 10.6   0.6 53 from 167 observations, assumed slope, autocmod 2.6m
comet total magnitude slope K1 10.   n/a 53 autocmod 2.6m
comet nuclear magnitude M2 13.5   0.6 53 from 55 observations, autocmod 2.6m
comet nuclear magnitude slope K2 5.   n/a 53 autocmod 2.6m
comet nuclear phase coefficient PC 0.03   n/a 53 autocmod 2.6m

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.4   308P/2014 O2       
 1998.1   308P/1997 T3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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