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199P/Shoemaker 4
Classification: Jupiter-family Comet          SPK-ID: 1000151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454413.5 (2007-Nov-09.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5069585466263428 2.3509e-07  
a 5.954759049737413 2.4962e-07 au
q 2.935943056372472 1.2926e-06 au
i 24.76774202068988 1.3509e-05 deg
node 92.94599630401839 2.7186e-05 deg
peri 191.9452851386766 0.00015197 deg
M 324.8622859788371 4.9686e-05 deg
tp 2454931.542892553010
(2009-Apr-10.04289255)
0.00076244 TDB
period 5307.557606244962
14.53
0.00033374
9.137e-07
d
yr
n .06782780832683152 4.265e-09 deg/d
Q 8.973575043102354 3.7617e-07 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      5671 days (15.53 yr)  
   first obs. used      1994-05-14  
   last obs. used      2009-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .72239  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:13:14  

Additional Information
 Earth MOID = 1.92252 au 
 Jupiter MOID = 1.80198 au 
 T_jup = 2.548 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.7   0.9 43 2 parameter fit from 108 observations, autocmod 2.8
comet total magnitude slope K1 15.25   n/a 43 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.3   199P/2008 G2       
 1994.7   199P/1994 J3   1994 XXVIII   1994k 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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