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39P/Oterma
Classification: Chiron-type Comet          SPK-ID: 1000177
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2452200.5 (2001-Oct-18.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.245513956937926 7.3662e-08  
a 7.25148931544269 4.3077e-07 AU
q 5.47114747991526 7.3304e-07 AU
i 1.94283105545965 1.7398e-05 deg
node 331.5811183554936 0.00059054 deg
peri 56.27834376123234 0.00069798 deg
M 338.345849678193 0.00017526 deg
tp 2452629.520347695068
(2002-Dec-21.02034770)
0.0035075 JED
period 7132.458345164751
19.53
0.00063555
1.74e-06
d
yr
n .05047348089232821 4.4975e-09 deg/d
Q 9.031831150970113 5.3653e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      21764 days (59.59 yr)  
   first obs. used      1942-02-17  
   last obs. used      2001-09-19  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      1.1036  
   data source      ORB  
   producer      M.S.W. Keesey  
   solution date      2002-Nov-26 14:10:36  

Additional Information
 Earth MOID = 4.47591 AU 
 T_jup = 3.005 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5. mag n/a ICQ 2003 Handbook  
comet total magnitude slope K1 15.0   n/a ICQ 2003 Handbook  
comet nuclear magnitude M2 10. mag n/a ICQ 2003 Handbook  
comet nuclear magnitude slope K2 10.0   n/a ICQ 2003 Handbook  

39P/Oterma          Discovered 1943-Apr-08 by Oterma, Liisi at Turku, Finland
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2003.0   39P/2001 P3       
 1963.9       1958 IV   
 1944.4   39P/1943 G1   1942 VII   
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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