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271P/van Houten-Lemmon
Classification: Jupiter-family Comet          SPK-ID: 1000103
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455714.5 (2011-Jun-02.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3899422919539769 3.0595e-07  
a 6.969382141348709 1.1778e-06 AU
q 4.251725295648078 2.139e-06 AU
i 6.856468948092699 3.7009e-05 deg
node 9.590606254555283 0.00028727 deg
peri 35.0383394977079 0.00037378 deg
M 319.048629232431 0.00011717 deg
tp 2456478.961796792225
(2013-Jul-05.46179679)
0.0022143 JED
period 6720.318311375008
18.40
0.0017036
4.664e-06
d
yr
n .05356889113282826 1.358e-08 deg/d
Q 9.687038987049341 1.6371e-06 AU
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      19841 days (54.32 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .79165  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:03:37  

Additional Information
 Earth MOID = 3.26177 AU 
 T_jup = 2.863 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5.5 mag n/a ICQ 1994 Handbook  
comet total magnitude slope K1 15.0   n/a ICQ 1994 Handbook  
comet nuclear magnitude M2 10.5 mag n/a ICQ 1994 Handbook  
comet nuclear magnitude slope K2 10.0   n/a ICQ 1994 Handbook  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.5   271P/2012 TB36       
 1958.3   271P/1960 S1   1961 X   
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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