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332P/Ikeya-Murakami-A
Classification: Encke-type Comet          SPK-ID: 1003445
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4903831843196049 1.3454e-05  
a 3.086407245147521 9.0485e-05 au
q 1.57288503216498 6.8131e-06 au
i 9.386909313710495 0.00013087 deg
node 3.782825733579562 0.00042594 deg
peri 152.4411866715716 0.0014946 deg
M 24.67080501706308 0.0013994 deg
tp 2457464.775237092482
(2016-Mar-17.27523709)
0.0019031 TDB
period 1980.515618072162
5.42
0.087094
0.0002385
d
yr
n .1817708462962917 7.9935e-06 deg/d
Q 4.599929458130061 0.00013486 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      124 days  
   first obs. used      2016-01-02  
   last obs. used      2016-05-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .57047  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Feb-24 10:09:08  

Additional Information
 Earth MOID = .587764 au 
 Jupiter MOID = .457071 au 
 T_jup = 3.010 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.9   0.7 15 2 parameter fit from 110 observations, autocmod 2.9a
comet total magnitude slope K1 12.75   n/a 15 autocmod 2.9a
comet nuclear magnitude M2 19.3   0.7 15 from 368 observations, autocmod 2.9a
comet nuclear magnitude slope K2 5.   n/a 15 autocmod 2.9a
comet nuclear phase coefficient PC 0.03   n/a 15 autocmod 2.9a

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.8   332P-A/2010 V1-A       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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