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68P/Klemola
Classification: Jupiter-family Comet          SPK-ID: 1000051
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.


:
Orbital Elements at Epoch 2457434.5 (2016-Feb-16.0) TDB
Reference: JPL K192/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .640309920033943 8.9667e-08  
a 4.898823359781732 5.8898e-08 au
q 1.762058166019479 4.4206e-07 au
i 11.1820564728307 5.3764e-06 deg
node 175.301600189889 6.5707e-05 deg
peri 153.8466255036508 7.3277e-05 deg
M 235.9122477444704 9.1633e-06 deg
tp 2458799.593862272089
(2019-Nov-12.09386227)
8.3249e-05 TDB
period 3960.373054432961
10.84
7.1423e-05
1.955e-07
d
yr
n .09090052756445294 1.6393e-09 deg/d
Q 8.035588553543985 9.6612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1658  
   data-arc span      4648 days (12.73 yr)  
   first obs. used      2008-04-13  
   last obs. used      2021-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57166  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Jan-19 12:36:24  

Additional Information
 Earth MOID = .759137 au 
 Jupiter MOID = .174136 au 
 T_jup = 2.524 
[ 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 11.3   0.6 K192/1 2 parameter fit from 918 observations, autocmod 2.9a
comet total magnitude slope K1 11.5   n/a K192/1 autocmod 2.9a
comet nuclear magnitude M2 14.1   0.8 K192/1 from 643 observations, autocmod 2.9a
comet nuclear magnitude slope K2 5.   n/a K192/1 autocmod 2.9a
comet nuclear phase coefficient PC 0.03   n/a K192/1 autocmod 2.9a
diameter diameter 4.4 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (to be published)  

68P/Klemola          Discovered 1965-Nov-(mid) by Klemola, A. R. at Yale-Columbia Southern Station, Argentina
discovered on plate/photo taken on 10/28-31,11/1-2
Reference: comet.disLast Updated: 2003-08-29

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Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1987.3       1987 XIV   1987i 
 1976.5   68P/1976 P1   1976 X   1976j 
 1965.6   68P/1965 U1   1965 VI   1965j 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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