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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 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.117007761562117E-14 -4.404364481113295E-14 -1.233253170536584E-11 -1.226054633798907E-12 -5.903614055427086E-13 7.361044440655344E-14
q -4.404364481113295E-14 1.785162085850262E-13 5.313355204349149E-11 5.01296808588967E-12 2.572857979209241E-12 -4.474649218923124E-13
tp -1.233253170536584E-11 5.313355204349149E-11 2.293418756223791E-8 2.512643047364946E-9 4.299687019882518E-10 -1.014870743316648E-10
node -1.226054633798907E-12 5.01296808588967E-12 2.512643047364946E-9 1.281267432924226E-9 -8.95086322737299E-10 -3.816059608128685E-11
peri -5.903614055427086E-13 2.572857979209241E-12 4.299687019882518E-10 -8.95086322737299E-10 9.115807701848217E-10 4.903077607684476E-11
i 7.361044440655344E-14 -4.474649218923124E-13 -1.014870743316648E-10 -3.816059608128685E-11 4.903077607684476E-11 1.064291810878186E-10

[ 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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