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354P/LINEAR
Classification: Encke-type Comet          SPK-ID: 1003055
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

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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 2456669.5 (2014-Jan-12.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249710695668899 6.6025e-06  
a 2.28970675895115 2.8558e-05 au
q 2.003559656290488 2.8847e-05 au
i 5.255932309081645 4.3038e-05 deg
node 320.2352108028575 0.00032726 deg
peri 132.742467311955 0.016958 deg
M 66.84930179741337 0.013904 deg
tp 2456434.502846917709
(2013-May-22.00284692)
0.04461 TDB
period 1265.517706766807
3.46
0.023676
6.482e-05
d
yr
n .2844685602382774 5.3219e-06 deg/d
Q 2.575853861611812 3.2127e-05 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -6.918661512251866E-9 1.551E-8
A2 [EST] -2.867536440838652E-9 3.282E-10
A3 [EST] 1.734878235578023E-9 2.508E-10
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      2579 days (7.06 yr)  
   first obs. used      2010-01-06  
   last obs. used      2017-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .3937  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-Jul-13 15:28:36  

Additional Information
 Earth MOID = 1.02428 au 
 Jupiter MOID = 2.58303 au 
 T_jup = 3.583 
[ hide covariance matrix ]
Orbit Covariance (9×9)
  e q tp node peri i A1 A2 A3
e 4.359361176617582E-11 -9.526009929366176E-11 -6.635089501082943E-8 5.029594299588851E-10 -1.789772046653102E-8 -7.48747808845623E-11 8.000933193083234E-15 2.162026059529303E-15 -6.410371952524569E-16
q -9.526009929366176E-11 8.321287350808038E-10 1.230608806770063E-6 -8.214033782143504E-9 4.572246800046402E-7 7.942360056296443E-10 -4.038018021066937E-13 -4.218882512052674E-15 2.557552343847506E-16
tp -6.635089501082943E-8 1.230608806770063E-6 .001990057880770185 -1.314761952990331E-5 .0007547809000118614 1.211361254561815E-6 -6.843354701495723E-10 -2.414112462311295E-12 -1.014988667655398E-12
node 5.029594299588851E-10 -8.214033782143504E-9 -1.314761952990331E-5 1.070987172371351E-7 -4.99517552082528E-6 -8.789219869195427E-9 4.497618972225426E-12 1.922043705487935E-14 8.696196860044066E-15
peri -1.789772046653102E-8 4.572246800046402E-7 .0007547809000118614 -4.99517552082528E-6 .0002875676185043033 4.541052631976816E-7 -2.621581213814361E-10 -5.498010354160006E-13 -5.066288053886328E-13
i -7.48747808845623E-11 7.942360056296443E-10 1.211361254561815E-6 -8.789219869195427E-9 4.541052631976816E-7 1.852285571768684E-9 -4.041945273792694E-13 -3.206490076497481E-15 -6.480835311794236E-15
A1 8.000933193083234E-15 -4.038018021066937E-13 -6.843354701495723E-10 4.497618972225426E-12 -2.621581213814361E-10 -4.041945273792694E-13 2.406519720597625E-16 8.405617636765284E-20 5.911910093950639E-19
A2 2.162026059529303E-15 -4.218882512052674E-15 -2.414112462311295E-12 1.922043705487935E-14 -5.498010354160006E-13 -3.206490076497481E-15 8.405617636765284E-20 1.077015557560174E-19 -3.273257234330551E-20
A3 -6.410371952524569E-16 2.557552343847506E-16 -1.014988667655398E-12 8.696196860044066E-15 -5.066288053886328E-13 -6.480835311794236E-15 5.911910093950639E-19 -3.273257234330551E-20 6.288847095496276E-20

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.5   0.8 27 from 26 observations, assumed slope, autocmod 2.6k
comet total magnitude slope K1 10.   n/a 27 autocmod 2.6k

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2016.9   354P/2017 B5       
 2009.9   354P/2010 A2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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