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76P/West-Kohoutek-Ikemura
Classification: Jupiter-family Comet          SPK-ID: 1000104
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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:
Orbital Elements at Epoch 2454101.5 (2007-Jan-01.0) TDB
Reference: JPL K195/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5384602706496376 1.9825e-07  
a 3.474105197355579 1.5291e-06 au
q 1.603437572522181 4.9455e-07 au
i 30.45887897057568 1.7219e-05 deg
node 84.10722234551777 1.4974e-05 deg
peri .1241466773657921 8.1032e-05 deg
M 6.423785556655038 2.3592e-05 deg
tp 2454059.296214402172
(2006-Nov-19.79621440)
0.00014308 TDB
period 2365.172791217753
6.48
0.0015615
4.275e-06
d
yr
n .1522087525007623 1.0049e-07 deg/d
Q 5.344772822188976 2.3525e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -1.982024078898394E-9 2.021E-10
A2 [EST] -1.707388310900494E-10 2.989E-13
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1993-07-20  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .86463  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2019-Nov-07 15:02:52  

Additional Information
 Earth MOID = .619263 au 
 Jupiter MOID = .0599599 au 
 T_jup = 2.685 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.3   1. K195/1 2 parameter fit from 216 observations, autocmod 2.8
comet total magnitude slope K1 9.   n/a K195/1 autocmod 2.8
comet nuclear magnitude M2 17.2   0.5 K195/1 from 355 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a K195/1 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a K195/1 autocmod 2.8
diameter diameter 0.66 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver, H.A. (2004) Comets II, pp. 223-264  

76P/West-Kohoutek-Ikemura          Discovered 1975-Jan by West, Richard M. at European Southern Obs., La Silla, Chile
discovered on plate/photo taken on 10/15
Reference: comet.disLast Updated: 2003-08-29

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Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1993.9       1993 XXI   1993o 
 1987.5       1987 XV   1987x 
 1981.0   76P/1980 V2   1981 VIII   1980r 
 1974.5   76P/1975 D1   1975 IV   1975b 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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