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163P/NEAT
Classification: Jupiter-family Comet          SPK-ID: 1000521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2454018.5 (2006-Oct-10.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4761945044977119 2.2773e-07  
a 3.677296494477345 1.7307e-07 au
q 1.926188112398533 9.1119e-07 au
i 12.49015044624771 1.6527e-05 deg
node 103.4408850800716 6.9415e-05 deg
peri 347.8690764023282 6.983e-05 deg
M 86.07038168906621 8.0696e-06 deg
tp 2453402.695828360176
(2005-Feb-01.19582836)
5.621e-05 TDB
period 2575.676991781001
7.05
0.00018183
4.978e-07
d
yr
n .1397690786339909 9.8672e-09 deg/d
Q 5.428404876556157 2.5548e-07 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      10737 days (29.40 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .82227  
   source      ORB  
   producer      Javier Roa  
   solution date      2020-Apr-21 19:14:02  

Additional Information
 Earth MOID = .944803 au 
 Jupiter MOID = .0888393 au 
 T_jup = 2.858 
[ 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 11.7   0.8 39 2 parameter fit from 157 observations, autocmod 2.8
comet total magnitude slope K1 20.   n/a 39 autocmod 2.8
comet nuclear magnitude M2 16.5   0.7 39 from 128 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 39 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 39 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2005.1   163P/2004 V4       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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