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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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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 2457798.5 (2017-Feb-14.0) TDB
Reference: JPL K161/11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8239728768241841 9.8616e-08  
a 3.025175757508482 2.2752e-06 au
q .5325129856954378 1.0715e-07 au
i 4.248163257767544 4.344e-06 deg
node 88.98173256883967 0.00010536 deg
peri 326.2819909297767 0.000112 deg
M 8.379504645412466 1.0292e-05 deg
tp 2457753.765747024074
(2016-Dec-31.26574702)
4.5444e-06 TDB
period 1921.871489163743
5.26
0.0021681
5.936e-06
d
yr
n .1873174153578008 2.1132e-07 deg/d
Q 5.517838529321526 4.1499e-06 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   # 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      .69729  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-Oct-04 12:31:40  

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 14.9   1. K161/11 2 parameter fit from 147 observations, autocmod 2.6k
comet total magnitude slope K1 24.   n/a K161/11 autocmod 2.6k
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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