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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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:
Orbital Elements at Epoch 2457446.5 (2016-Feb-28.0) TDB
Reference: JPL K192/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6403325999028817 8.1503e-08  
a 4.899118090102735 5.786e-08 au
q 1.76205306623601 4.0038e-07 au
i 11.18350804840104 5.356e-06 deg
node 175.3003845692082 6.5691e-05 deg
peri 153.8398902534949 7.1839e-05 deg
M 237.0297098905035 8.829e-06 deg
tp 2458799.422706332434
(2019-Nov-11.92270633)
8.0347e-05 TDB
period 3960.73046461865
10.84
7.0166e-05
1.921e-07
d
yr
n .09089232484156475 1.6102e-09 deg/d
Q 8.036183113969459 9.491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1669  
   data-arc span      4656 days (12.75 yr)  
   first obs. used      2008-04-13  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5734  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Feb-01 11:43:52  

Additional Information
 Earth MOID = .759789 au 
 Jupiter MOID = .174116 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 11.2   0.6 K192/2 2 parameter fit from 929 observations, autocmod 2.9a
comet total magnitude slope K1 11.75   n/a K192/2 autocmod 2.9a
comet nuclear magnitude M2 14.1   0.8 K192/2 from 643 observations, autocmod 2.9a
comet nuclear magnitude slope K2 5.   n/a K192/2 autocmod 2.9a
comet nuclear phase coefficient PC 0.03   n/a K192/2 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

[ show close-approach data ]
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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