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155P/Shoemaker 3
Classification: Jupiter-family Comet          SPK-ID: 1000085
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 2455517.5 (2010-Nov-17.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7257616290420945 1.4796e-07  
a 6.595693895707 4.4261e-08 au
q 1.808792349295689 9.8081e-07 au
i 6.39491548534137 8.7686e-06 deg
node 97.26954821047829 7.578e-05 deg
peri 14.61514915469114 0.0001329 deg
M 168.8207249294911 1.2538e-05 deg
tp 2452616.067811069607
(2002-Dec-07.56781107)
0.00022523 TDB
period 6187.12891116413
16.94
6.2279e-05
1.705e-07
d
yr
n .05818530778474838 5.8569e-10 deg/d
Q 11.38259544211831 7.6385e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 5.861905683114141E-9 4.447E-10
A2 [EST] -8.077927644104211E-10 1.761E-12
  Orbit Determination Parameters
   # obs. used (total)      1852  
   data-arc span      12550 days (34.36 yr)  
   first obs. used      1986-01-10  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69497  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 11:21:10  

Additional Information
 Earth MOID = .8266 au 
 Jupiter MOID = .30175 au 
 T_jup = 2.328 
[ 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 10.   n/a ICQ 2003 Handbook  
comet total magnitude slope K1 12.0   n/a ICQ 2003 Handbook  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2002.9   155P/2002 R2       
 1986.0   155P/1986 A1   1985 XVIII   1986a 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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