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98P/Takamizawa
Classification: Jupiter-family Comet          SPK-ID: 1000091
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 2456717.5 (2014-Mar-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5605977808221723 1.3101e-07  
a 3.808319341400365 1.6104e-07 au
q 1.673383969949164 5.3823e-07 au
i 10.54421204182212 1.0484e-05 deg
node 114.7417165616202 5.0075e-05 deg
peri 157.8742443878394 9.645e-05 deg
M 27.5372541598409 2.1425e-05 deg
tp 2456509.857333809695
(2013-Aug-05.35733381)
0.00015722 TDB
period 2714.553869264272
7.43
0.00017218
4.714e-07
d
yr
n .1326184770455748 8.412e-09 deg/d
Q 5.943254712851567 2.5132e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 4.481930143048554E-9 1.18E-10
A2 [EST] 4.240353860189232E-10 8.515E-13
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      10752 days (29.44 yr)  
   first obs. used      1984-07-06  
   last obs. used      2013-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .84313  
   source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Feb-19 14:43:06  

Additional Information
 Earth MOID = .660877 au 
 T_jup = 2.759 
[ 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 14.3   1. 15 2 parameter fit from 175 observations, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 15 autocmod 2.5c
diameter diameter 5.4 km n/a Scotti,J (1994) BAAS 26:1375  

98P/Takamizawa          Discovered 1984-Jul-30 by Takamizawa at Tokyo Astronomical Observatory
Reference: comet.disLast Updated: 2003-08-29

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Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1991.3   98P/1991 D1   1991 XIII   1991h 
 1983.9   98P/1984 O1   1984 VII   1984j 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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