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P/2008 Y3 (McNaught)
Classification: Jupiter-family Comet          SPK-ID: 1003008
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454879.5 (2009-Feb-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .447667202903401 1.4968e-05  
a 8.028211083803145 0.00023451 au
q 4.434244283598909 9.8515e-06 au
i 38.81318774606871 3.7214e-05 deg
node 262.9341436174457 8.4579e-05 deg
peri 238.2794004549053 0.00025877 deg
M 1.561326910594624 0.00011413 deg
tp 2454843.465546044891
(2009-Jan-11.96554604)
0.0019863 TDB
period 8308.576080904648
22.75
0.36404
0.0009967
d
yr
n .04332872401895401 1.8985e-06 deg/d
Q 11.62217788400738 0.00033949 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      927 days (2.54 yr)  
   first obs. used      2007-12-18  
   last obs. used      2010-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .69721  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:26  

Additional Information
 Earth MOID = 3.61452 au 
 Jupiter MOID = .0626587 au 
 T_jup = 2.379 
[ 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 4.5   0.8 20 2 parameter fit from 58 observations, autocmod 2.9c
comet total magnitude slope K1 16.5   n/a 20 autocmod 2.9c
comet nuclear magnitude M2 12.5   0.7 20 from 66 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 20 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 20 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.0   P/2008 Y3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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