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254P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1003106
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457158.5 (2015-May-16.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3172192347803854 3.4038e-07  
a 4.636855050029021 1.2172e-07 au
q 3.165955439271249 1.6145e-06 au
i 32.62224047521376 2.2072e-05 deg
node 129.8827535902145 4.4063e-05 deg
peri 219.2999070875776 0.00010275 deg
M 164.5506638044065 4.1385e-05 deg
tp 2455491.518252686728
(2010-Oct-22.01825269)
0.00040202 TDB
period 3646.982729562879
9.98
0.0001436
3.932e-07
d
yr
n .09871173698789328 3.8869e-09 deg/d
Q 6.107754660786792 1.6033e-07 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      14704 days (40.26 yr)  
   first obs. used      1980-10-05  
   last obs. used      2021-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59371  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:13:01  

Additional Information
 Earth MOID = 2.2162 au 
 Jupiter MOID = .229823 au 
 T_jup = 2.630 
[ 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 14.2   0.7 28 2 parameter fit from 234 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 28 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.8   254P/2010 T1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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