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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 2450567.5 (1997-Apr-29.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2901403770968527 4.8379e-07  
a 3.828070553018723 4.167e-07 au
q 2.717392719212513 2.0861e-06 au
i 6.050220694183359 4.1187e-05 deg
node 213.357338917522 0.00035482 deg
peri 22.69833249604233 0.00040344 deg
M 234.2495620194367 0.00014224 deg
tp 2451523.098221016495
(1999-Dec-10.59822102)
0.001206 TDB
period 2735.699096484349
7.49
0.00044668
1.223e-06
d
yr
n .1315934199278848 2.1486e-08 deg/d
Q 4.938748386824932 5.376e-07 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      10568 days (28.93 yr)  
   first obs. used      1992-03-30  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .7762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:38  

Additional Information
 Earth MOID = 1.70726 au 
 Jupiter MOID = .0816582 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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