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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 2455079.5 (2009-Sep-05.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6066209573544306 1.7328e-07  
a 4.451306514650329 1.5393e-07 au
q 1.751050695255133 8.2692e-07 au
i 17.66183500506354 1.5116e-05 deg
node 11.43955310636897 4.9547e-05 deg
peri 50.7765676808489 8.4323e-05 deg
M 150.9215942242505 1.7608e-05 deg
tp 2453641.434852020539
(2005-Sep-27.93485202)
0.00015503 TDB
period 3430.280841741996
9.39
0.00017793
4.871e-07
d
yr
n .1049476753096349 5.4438e-09 deg/d
Q 7.151562334045526 2.4731e-07 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      3814 days (10.44 yr)  
   first obs. used      2005-08-31  
   last obs. used      2016-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57492  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:28:19  

Additional Information
 Earth MOID = .815564 au 
 Jupiter MOID = .471654 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 15.8   0.5 41 2 parameter fit from 231 observations, autocmod 2.9c
comet total magnitude slope K1 7.75   n/a 41 autocmod 2.9c

[ 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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