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135P/Shoemaker-Levy 8
Classification: Jupiter-family Comet          SPK-ID: 1000138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2450118.5 (1996-Feb-05.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2906601319199704 6.3563e-07  
a 3.826692195736582 7.3081e-07 au
q 2.714425337306666 2.8918e-06 au
i 6.052818430756131 4.1773e-05 deg
node 213.3771349219848 0.00035498 deg
peri 22.66576921021946 0.00043242 deg
M 175.195007929477 0.00018263 deg
tp 2448787.883363181984
(1992-Jun-14.38336318)
0.0010716 TDB
period 2734.221681974588
7.49
0.00078326
2.144e-06
d
yr
n .1316645253650453 3.7717e-08 deg/d
Q 4.938959054166498 9.4323e-07 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      2627 days (7.19 yr)  
   first obs. used      1992-03-30  
   last obs. used      1999-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .7594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-10 16:24:02  

Additional Information
 Earth MOID = 1.70538 au 
 Jupiter MOID = .0838679 au 
 T_jup = 2.992 
[ 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 7.0   n/a ICQ 2005 Handbook  
comet total magnitude slope K1 17.0   n/a ICQ 2005 Handbook  
diameter diameter 3.8 km n/a Scotti,J (1994) BAAS 26:1375  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1999.9   135P/1998 B1       
 1992.5   135P/1992 G2   1992 XV   1992f 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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