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378P/McNaught (2005 Y2)
Classification: Jupiter-family Comet          SPK-ID: 1002315
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2455246.5 (2010-Feb-19.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .466595263353206 3.802e-07  
a 6.310337873278677 8.9244e-07 au
q 3.365964111448503 2.8401e-06 au
i 19.16795249324927 2.6393e-05 deg
node 94.60591189439384 0.00011263 deg
peri 194.8972155162692 0.00012117 deg
M 116.7795967735276 3.1591e-05 deg
tp 2453368.300081879921
(2004-Dec-28.80008188)
0.00050262 TDB
period 5789.983774601481
15.85
0.0012283
3.363e-06
d
yr
n .0621763400407419 1.319e-08 deg/d
Q 9.254711635108851 1.3089e-06 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6155 days (16.85 yr)  
   first obs. used      2003-05-30  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65635  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-30 07:17:16  

Additional Information
 Earth MOID = 2.35326 au 
 Jupiter MOID = 1.47805 au 
 T_jup = 2.665 
[ 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 12.5   2. 35 2 parameter fit from 133 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 35 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.8   378P/2019 E2       
 2005.0   378P/2005 Y2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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