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98P/Takamizawa
Classification: Jupiter-family Comet          SPK-ID: 1000091
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


:
Orbital Elements at Epoch 2456360.5 (2013-Mar-09.0) TDB
Reference: JPL K135/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5606251326278051 2.5395e-07  
a 3.808726087146543 5.4099e-07 AU
q 1.673458519397031 1.1557e-06 AU
i 10.54356952029168 2.0485e-05 deg
node 114.7415050196611 0.00012525 deg
peri 157.8979246434245 0.00019427 deg
M 340.1904093009558 5.3061e-05 deg
tp 2456509.896711952306
(2013-Aug-05.39671195)		 0.00042546 JED
period 2714.988770839426
7.43		 0.00057846
1.584e-06		 d
yr
n .1325972335011516 2.8251e-08 deg/d
Q 5.943993654896055 8.4429e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 5.322980887454781E-9 2.204E-10
A2 [EST] 4.10955785948275E-10 1.323E-12
   Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      10482 days (28.70 yr)  
   first obs. used      1984-07-06  
   last obs. used      2013-03-18  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      1  
   fit RMS      1.0095  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2013-Mar-18 17:22:06  

Additional Information
 Earth MOID = .66117 AU 
 T_jup = 2.759 
[ 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 10.2 mag 1. K135/1 2 parameter fit from 44 observations, autocmod 2.5b
comet total magnitude slope K1 20.   n/a K135/1 autocmod 2.5b
comet nuclear magnitude M2 16.1 mag 0.6 K135/1 from 30 observations, autocmod 2.5b
comet nuclear magnitude slope K2 5.   n/a K135/1 autocmod 2.5b
comet nuclear phase coefficient PC 0.03   n/a K135/1 autocmod 2.5b
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

[ show close-approach data ]
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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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