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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455534.5 (2010-Dec-04.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7257991759805048 1.4733e-07  
a 6.595542915573662 4.4116e-08 au
q 1.808503302306242 9.7656e-07 au
i 6.395262780445488 8.7688e-06 deg
node 97.27021181617215 7.5725e-05 deg
peri 14.61368396338698 0.00013267 deg
M 169.8122728304613 1.2491e-05 deg
tp 2452616.126811941699
(2002-Dec-07.62681194)
0.00022459 TDB
period 6186.916470695321
16.94
6.2075e-05
1.7e-07
d
yr
n .05818730569665202 5.8381e-10 deg/d
Q 11.38258252884108 7.6136e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 5.843601042410606E-9 4.446E-10
A2 [EST] -8.077315841814932E-10 1.759E-12
  Orbit Determination Parameters
   # obs. used (total)      1861  
   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      .69471  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:13:00  

Additional Information
 Earth MOID = .825531 au 
 Jupiter MOID = .301745 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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