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198P/ODAS
Classification: Jupiter-family Comet          SPK-ID: 1000244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2452695.5 (2003-Feb-25.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4476939857558102 1.3118e-06  
a 3.583346371760677 9.8498e-07 au
q 1.979103752243518 5.0671e-06 au
i 1.349847629603242 5.1807e-05 deg
node 358.7441853008964 0.0021146 deg
peri 69.06401575445473 0.0022697 deg
M 244.0439721567199 0.00043908 deg
tp 2453493.535921868689
(2005-May-03.03592187)
0.0033482 TDB
period 2477.602391322146
6.78
0.0010216
2.797e-06
d
yr
n .1453017648275234 5.991e-08 deg/d
Q 5.187588991277835 1.4259e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 1.080668986007221E-8 3.916E-11
A3 [EST] -2.155254063288489E-8 4.358E-10
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      7315 days (20.03 yr)  
   first obs. used      1998-12-15  
   last obs. used      2018-12-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .58297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:13:14  

Additional Information
 Earth MOID = .993369 au 
 Jupiter MOID = .239324 au 
 T_jup = 2.936 
[ 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 15.8   0.5 32 2 parameter fit from 93 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 32 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2005.3   198P/2006 B7       
 1998.6   198P/1998 X1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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