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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455413.5 (2010-Aug-05.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6896124637729237 6.6686e-08  
a 3.944212678022593 4.4589e-08 au
q 1.224234455487031 2.6114e-07 au
i 12.88038133656731 4.986e-06 deg
node 125.6209128541173 1.9551e-05 deg
peri 246.7641705041978 2.9883e-05 deg
M 41.52383817590322 2.0811e-06 deg
tp 2455083.484830563487
(2009-Sep-08.98483056)
1.636e-05 TDB
period 2861.138714919877
7.83
4.8518e-05
1.328e-07
d
yr
n .1258240287766269 2.1337e-09 deg/d
Q 6.664190900558155 7.5339e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.599083031841E-9 3.258E-11
A2 [EST] -1.222525581402345E-10 1.264E-11
A3 [EST] 2.914599393632511E-12 2.273E-11
DT [EST] 22.14165454790948 1.924
  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      .59291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:13:12  

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 14.0   1. 129 2 parameter fit from 546 observations, autocmod 2.8
comet total magnitude slope K1 6.5   n/a 129 autocmod 2.8

[ 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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