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227P/Catalina-LINEAR
Classification: Jupiter-family Comet          SPK-ID: 1000494
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 2454883.5 (2009-Feb-21.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .499621919151182 1.0228e-07  
a 3.588230427812658 9.038e-08 au
q 1.795471855112231 3.889e-07 au
i 6.524172569775821 2.9698e-05 deg
node 49.88929668041585 0.0001108 deg
peri 90.13051171564476 0.00013079 deg
M 278.8218311380214 3.9128e-05 deg
tp 2455443.329350550501
(2010-Sep-03.82935055)
0.00028771 TDB
period 2482.669528316682
6.80
9.38e-05
2.568e-07
d
yr
n .1450052034287825 5.4786e-09 deg/d
Q 5.380989000513084 1.3554e-07 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1997-01-15  
   last obs. used      2018-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68951  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-20 18:19:44  

Additional Information
 Earth MOID = .822886 au 
 Jupiter MOID = .411472 au 
 T_jup = 2.879 
[ 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   0.7 24 from 98 observations, assumed slope, autocmod 2.6n
comet total magnitude slope K1 13.   n/a 24 autocmod 2.6n
comet nuclear magnitude M2 18.0   0.8 24 from 36 observations, autocmod 2.6n
comet nuclear magnitude slope K2 5.   n/a 24 autocmod 2.6n
comet nuclear phase coefficient PC 0.03   n/a 24 autocmod 2.6n

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.7   227P/2009 S4       
 2003.9   227P/2004 EW38       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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