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189P/NEAT
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454753.5 (2008-Oct-14.0) TDB
Reference: JPL 62 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5976635065915487 5.6938e-08  
a 2.917460163360445 2.306e-08 au
q 1.173800691785289 1.7401e-07 au
i 20.40128602786272 1.2251e-05 deg
node 282.1995604285803 9.4069e-06 deg
peri 15.30269339801259 3.5019e-05 deg
M 88.22541069871555 7.1187e-06 deg
tp 2454307.436161987357
(2007-Jul-25.93616199)
4.052e-05 TDB
period 1820.144337246926
4.98
2.158e-05
5.908e-08
d
yr
n .1977865121095401 2.345e-09 deg/d
Q 4.6611196349356 3.6842e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -3.727460960323168E-10 5.57E-11
A2 [EST] -4.917826991857608E-11 8.147E-14
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      5573 days (15.26 yr)  
   first obs. used      2002-07-30  
   last obs. used      2017-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .74136  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:47  

Additional Information
 Earth MOID = .168492 au 
 Jupiter MOID = .666542 au 
 T_jup = 2.909 
[ 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 19.1   0.7 62 2 parameter fit from 351 observations, autocmod 2.9b
comet total magnitude slope K1 4.5   n/a 62 autocmod 2.9b

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2007.6   189P/2007 N2       
 2002.6   189P/2002 O5       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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