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209P/LINEAR
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2455947.5 (2012-Jan-21.0) TDB
Reference: JPL 139 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6920214030579277 1.0041e-08  
a 2.931505661877386 1.7288e-08 au
q .9028410006727384 3.3518e-08 au
i 20.61912261051878 3.4831e-06 deg
node 63.60831886306269 1.7942e-06 deg
peri 152.1306592817882 5.215e-06 deg
M 198.3460710166581 2.7343e-07 deg
tp 2456770.724518275230
(2014-Apr-23.22451828)
7.545e-06 TDB
period 1833.304197695203
5.02
1.6218e-05
4.44e-08
d
yr
n .1963667570567861 1.7371e-09 deg/d
Q 4.960170323082034 2.9252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2794  
   # delay obs. used      9  
   # Doppler obs. used      4  
   data-arc span      5743 days (15.72 yr)  
   first obs. used      2003-12-03  
   last obs. used      2019-08-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41798  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:56  

Additional Information
 Earth MOID = .0576412 au 
 Jupiter MOID = .461507 au 
 T_jup = 2.789 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.008277405428218E-16 -3.345716690197337E-16 -5.919824722333528E-14 -8.77400071924655E-15 4.663446865795775E-14 -8.31862946055131E-15
q -3.345716690197337E-16 1.123461662379603E-15 2.130298171086148E-13 2.425740802217633E-14 -1.619213625230466E-13 2.897777210797523E-14
tp -5.919824722333528E-14 2.130298171086148E-13 5.692760859820256E-11 -9.970553461022825E-13 -3.624942324417093E-11 8.521492576122713E-12
node -8.77400071924655E-15 2.425740802217633E-14 -9.970553461022825E-13 3.219177329789357E-12 -1.779436161222415E-12 4.668452597439869E-14
peri 4.663446865795775E-14 -1.619213625230466E-13 -3.624942324417093E-11 -1.779436161222415E-12 2.719597313485067E-11 -7.237309256743111E-13
i -8.31862946055131E-15 2.897777210797523E-14 8.521492576122713E-12 4.668452597439869E-14 -7.237309256743111E-13 1.21322592334177E-11

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 18.1   0.8 139 2 parameter fit from 470 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 139 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.3   209P/2008 X2       
 2004.3   209P/2004 CB       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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