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172P/Yeung
Classification: Jupiter-family Comet          SPK-ID: 1000388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455419.5 (2010-Aug-11.0) TDB
Reference: JPL 71 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3649285621726627 1.0569e-07  
a 3.529450757974038 1.2949e-07 au
q 2.241453367607358 4.2251e-07 au
i 11.60310122334719 1.0316e-05 deg
node 39.3556487525685 3.5795e-05 deg
peri 180.3591041807299 3.0192e-05 deg
M 98.63821886127027 2.692e-05 deg
tp 2454755.906935710873
(2008-Oct-16.40693571)
0.00015144 TDB
period 2421.916229854855
6.63
0.00013328
3.649e-07
d
yr
n .148642630807084 8.18e-09 deg/d
Q 4.817448148340718 1.7674e-07 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      9914 days (27.14 yr)  
   first obs. used      1993-10-20  
   last obs. used      2020-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47104  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-14 17:13:18  

Additional Information
 Earth MOID = 1.23279 au 
 Jupiter MOID = .158397 au 
 T_jup = 2.977 
[ 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 14.8   0.4 71 2 parameter fit from 451 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 71 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2002.2   172P/2001 CB40       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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