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

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456060.5 (2012-May-13.0) TDB
Reference: JPL K112/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8246720758970018 1.9243e-06  
a 3.021546191968544 3.7545e-05 AU
q .5297614214191643 8.9182e-07 AU
i 4.252433260900838 1.3449e-05 deg
node 89.00218090291999 0.00015429 deg
peri 326.2580403750489 0.00022254 deg
M 42.638552274391 0.00078718 deg
tp 2455833.282261251390
(2011-Sep-28.78226125)
4.7379e-05 JED
period 1918.413773129635
5.25
0.035756
9.789e-05
d
yr
n .187655033049887 3.4976e-06 deg/d
Q 5.513330962517924 6.8507e-05 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.881341125636597E-9 3.574E-10
A2 [EST] 4.33006560214081E-10 9.534E-11
  Orbit Determination Parameters
   # obs. used (total)      912  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      2144 days (5.87 yr)  
   first obs. used      2006-05-30  
   last obs. used      2012-04-12  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      3  
   fit RMS      .59465  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2012-May-02 16:10:04  

Additional Information
 Earth MOID = .060071 AU 
 T_jup = 2.582 
[ 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 14. mag n/a ICQ 2001 Handbook  
comet total magnitude slope K1 26.0   n/a ICQ 2001 Handbook  
comet nuclear magnitude M2 18. mag n/a ICQ 2001 Handbook  
comet nuclear magnitude slope K2 15.0   n/a ICQ 2001 Handbook  
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 
 1985.5       1985 III   1985c 
 1980.2       1980 I   1980c 
 1975.0       1974 XVI   1974f 
 1969.7       1969 V   1969e 
 1964.5       1964 VII   1964d 
 1954.0   45P/1954 C1   1954 III   1954a 
 1948.7   45P/1948 X1   1948 XII   1948n 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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