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45P/Honda-Mrkos-Pajdusakova
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2457798.5 (2017-Feb-14.0) TDB
Reference: JPL K161/12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8239728740011473 9.8455e-08  
a 3.025175690785106 2.272e-06 au
q .5325129824904962 1.0701e-07 au
i 4.248165440352516 4.328e-06 deg
node 88.9817832531519 0.00010506 deg
peri 326.2819404679929 0.00011177 deg
M 8.379504869779069 1.0277e-05 deg
tp 2457753.765747306276
(2016-Dec-31.26574731)
4.534e-06 TDB
period 1921.871425580452
5.26
0.0021651
5.928e-06
d
yr
n .1873174215550196 2.1102e-07 deg/d
Q 5.517838399079716 4.1441e-06 au
  Orbit Determination Parameters
   # obs. used (total)      1685  
   # delay obs. used      9  
   # Doppler obs. used      4  
   data-arc span      203 days  
   first obs. used      2016-11-05  
   last obs. used      2017-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .68863  
   source      ORB  
   producer      Javier Roa  
   solution date      2020-Aug-06 09:00:47  

Additional Information
 Earth MOID = .0602751 au 
 Jupiter MOID = .106108 au 
 T_jup = 2.582 
[ 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 15.1   1. K161/12 2 parameter fit from 152 observations, autocmod 2.8
comet total magnitude slope K1 24.75   n/a K161/12 autocmod 2.8
diameter diameter 1.6 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264  

45P/Honda-Mrkos-Pajdusakova          Discovered 1948-Dec-03 by Honda, Minora at Kurashiki, Japan
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1990.7       1990 XIV   1990f 
 1985.4       1985 III   1985c 
 1980.2       1980 I   1980c 
 1974.9       1974 XVI   1974f 
 1969.6       1969 V   1969e 
 1964.4       1964 VII   1964d 
 1953.9   45P/1954 C1   1954 III   1954a 
 1948.6   45P/1948 X1   1948 XII   1948n 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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