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309P/LINEAR
Classification: Jupiter-family Comet          SPK-ID: 1001661
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455116.5 (2009-Oct-12.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6066828196651917 1.7117e-07  
a 4.451116169482742 1.5121e-07 au
q 1.750700461123625 8.1655e-07 au
i 17.66241293388101 1.4948e-05 deg
node 11.44131526844306 4.8313e-05 deg
peri 50.77270254772419 8.2774e-05 deg
M 154.8080254146878 1.7314e-05 deg
tp 2453641.497382776646
(2005-Sep-27.99738278)
0.00015323 TDB
period 3430.060817441493
9.39
0.00017479
4.785e-07
d
yr
n .1049544072715674 5.3482e-09 deg/d
Q 7.15153187784186 2.4295e-07 au
  Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      3814 days (10.44 yr)  
   first obs. used      2005-08-31  
   last obs. used      2016-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .58996  
   source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 17:58:19  

Additional Information
 Earth MOID = .814527 au 
 Jupiter MOID = .471776 au 
 T_jup = 2.570 
[ 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 15.7   0.5 40 2 parameter fit from 231 observations, autocmod 2.6f
comet total magnitude slope K1 8.   n/a 40 autocmod 2.6f

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.1   309P/2014 Q4       
 2005.7   309P/2005 Q4       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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