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JPL Small-Body Database Browser
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217P/LINEAR
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000345
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2455413.5 (2010-Aug-05.0) TDB
Reference: JPL 128 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6896124377441168 6.6756e-08  
a 3.944212683566493 4.456e-08 au
q 1.224234559870939 2.6141e-07 au
i 12.88038541924797 4.9927e-06 deg
node 125.6209072877638 1.9564e-05 deg
peri 246.764171333605 2.992e-05 deg
M 41.52383981229764 2.0806e-06 deg
tp 2455083.484816862273
(2009-Sep-08.98481686)
1.635e-05 TDB
period 2861.138720952209
7.83
4.8486e-05
1.327e-07
d
yr
n .1258240285113436 2.1323e-09 deg/d
Q 6.664190807262048 7.529e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.584372802014197E-9 3.258E-11
A2 [EST] -1.224085867174653E-10 1.263E-11
A3 [EST] -2.204927992313826E-12 2.272E-11
DT [EST] 22.37552737625511 1.943
  Orbit Determination Parameters
   # obs. used (total)      3268  
   data-arc span      6117 days (16.75 yr)  
   first obs. used      2001-06-21  
   last obs. used      2018-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-20 18:19:41  

Additional Information
 Earth MOID = .307519 au 
 Jupiter MOID = .655396 au 
 T_jup = 2.549 
[ 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 13.9   1. 128 2 parameter fit from 546 observations, autocmod 2.6n
comet total magnitude slope K1 7.   n/a 128 autocmod 2.6n

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.7   217P/2009 F3       
 2001.9   217P/2001 MD7       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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