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P/1999 J6 (SOHO)
Classification: Jupiter-family Comet* [NEO]          SPK-ID: 1001439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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.


Orbital Elements at Epoch 2454119.5 (2007-Jan-19.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9842342020457169 6.1497e-05  
a 3.098992135102364 0.00011426 au
q .04885808386393634 0.00019183 au
i 26.62913575934271 0.065029 deg
node 81.59824796423456 0.26019 deg
peri 21.94708144120514 0.25028 deg
M 144.8376066645193 0.0031965 deg
tp 2453317.807211509900
(2004-Nov-08.30721151)
0.049455 TDB
period 1992.641348492652
5.46
0.1102
0.0003017
d
yr
n .1806647243731666 9.9917e-06 deg/d
Q 6.149126186340792 0.00022672 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 4.946373242371758E-7 6.029E-7
A2 [EST] -1.888656736245763E-9 9.975E-12
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      4000 days (10.95 yr)  
   first obs. used      1999-05-10  
   last obs. used      2010-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .12245  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-16 12:13:58  

Additional Information
 Earth MOID = .00987452 au 
 Jupiter MOID = .706654 au 
 T_jup = 1.923 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Close-Approach Data ]

no physical parameters available

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.3   P/2010 H3       
 2004.9   P/2004 V9       
 1999.4   P/1999 J6       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Close-Approach Data ]
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