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147P/Kushida-Muramatsu
Classification: Encke-type Comet          SPK-ID: 1000147
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | 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.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2454801.5 (2008-Dec-01.0) TDB
Reference: JPL K083/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.2760252083897379860033 2.7116e-06  
a 3.8070857912160049885130 1.7284e-06 AU
q 2.7562341423379970173357 1.1331e-05 AU
i 2.3679635720599740977832 0.00012232 deg
node 93.76206553452435 0.0010774 deg
peri 346.8408341847135 0.0017389 deg
M 9.172577076233985 0.0004901 deg
tp 2454732.368450487631
(2008-Sep-22.86845049)
0.0036548 JED
period 2713.235072064494
7.43
0.0018477
5.059e-06
d
yr
n .1326829376881365 9.0354e-08 deg/d
Q 4.857937440094014 2.2054e-06 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.669298026018222E-7 2.233E-8
A2 [EST] -6.900666706415933E-8 3.5E-9
A3 [EST] 1.633628816320418E-7 7.563E-9
DT [EST] 305.4318152700558 12.77
  Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      5555 days (15.21 yr)  
   first obs. used      1993-12-08  
   last obs. used      2009-02-22  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      1  
   fit RMS      .65919  
   data source      ORB  
   producer      Nick Mastrodemos  
   solution date      2009-Mar-12 16:26:31  

Additional Information
 Earth MOID = 1.77177 AU 
 T_jup = 3.010 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.5 mag 0.7 K083/2 2 parameter fit from 92 observations, autocmod 2.4a
comet total magnitude slope K1 23.   n/a K083/2 autocmod 2.4a
comet nuclear magnitude M2 16.8 mag 0.3 K083/2 from 14 observations, autocmod 2.4a
comet nuclear magnitude slope K2 5.   n/a K083/2 autocmod 2.4a
comet nuclear phase coefficient PC 0.03   n/a K083/2 autocmod 2.4a
diameter diameter 0.42 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H. (2004) Comets II, pp. 223-264  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2001.3   147P/2000 T2       
 1993.9   147P/1993 X1   1993 XIX   1993t 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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