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195P/Hill
Classification: Jupiter-family Comet          SPK-ID: 1002431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454494.5 (2008-Jan-29.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .315047798798942 1.8038e-07  
a 6.47960643491348 8.3478e-07 au
q 4.438220690510528 1.1378e-06 au
i 36.36748420072287 1.9191e-05 deg
node 243.2611246188573 2.4615e-05 deg
peri 249.6535742516584 8.2761e-05 deg
M 338.5816063674453 4.5845e-05 deg
tp 2454852.931165179588
(2009-Jan-21.43116518)
0.0007584 TDB
period 6024.504996888555
16.49
0.0011642
3.187e-06
d
yr
n .05975594678499351 1.1548e-08 deg/d
Q 8.520992179316432 1.0978e-06 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      7042 days (19.28 yr)  
   first obs. used      1993-02-26  
   last obs. used      2012-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .74106  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:41:52  

Additional Information
 Earth MOID = 3.6438 au 
 T_jup = 2.509 
[ 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 8.6   0.4 37 2 parameter fit from 96 observations, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 37 autocmod 2.5c
comet nuclear magnitude M2 12.5   0.7 37 from 111 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 37 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 37 autocmod 2.5c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.1   195P/2006 W4       
 1992.6   195P/1993 D1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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