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205P/Giacobini-B
Classification: Jupiter-family Comet          SPK-ID: 1002996
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454735.5 (2008-Sep-26.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5753279137768729 0.01057  
a 3.60328142190863 0.10322 au
q 1.530213038690974 0.0057514 au
i 15.40528193605396 0.15096 deg
node 179.5073325093614 0.18213 deg
peri 154.0793970125158 0.15102 deg
M 2.339584320598842 0.053132 deg
tp 2454719.263893101803
(2008-Sep-09.76389310)
0.34371 TDB
period 2498.306400794663
6.84
107.35
0.2939
d
yr
n .1440976174441578 0.006192 deg/d
Q 5.676349805126287 0.16261 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.838648189527286E-6 3.708E-6
A2 [EST] -2.395403737244474E-7 2.412E-6
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      19 days  
   first obs. used      2008-09-17  
   last obs. used      2008-10-06  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      9  
   norm. resid. RMS      1.0167  
   source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:12:45  

Additional Information
 Earth MOID = .536385 au 
 T_jup = 2.756 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 18.5   0.9 3 from 9 observations, assumed slope, autocmod 2.5a
comet total magnitude slope K1 10.   n/a 3 autocmod 2.5a
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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