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73P/Schwassmann-Wachmann 3-AP
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1002365
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453856.5 (2006-May-01.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.701430092385429 0.0014514  
a 3.14413946156757 0.015046 au
q 0.938745428567555 7.1329e-05 au
i 11.4659092912232 0.01264 deg
node 69.9669785019781 0.01411 deg
peri 198.7426204960793 0.011255 deg
M 353.5278506404665 0.048898 deg
tp 2453893.109783384113
(2006-Jun-06.60978338)
0.013809 TDB
period 2036.343923192541
5.58
14.617
0.04002
d
yr
n .1767874256896639 0.001269 deg/d
Q 5.349533494567575 0.0256 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      15 days  
   first obs. used      2006-04-18  
   last obs. used      2006-05-03  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      8  
   norm. resid. RMS      1.1205  
   source      ORB  
   producer      Nick Mastrodemos  
   solution date      2006-Aug-22 15:14:44  

Additional Information
 Earth MOID = .0409957 au 
 T_jup = 2.741 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 20.3   1.7 4 2 parameter fit from 41 observations
comet total magnitude slope K1 10.0   n/a 4 2 parameter fit from 41 observations
comet nuclear magnitude M2 21.2   0.3 4 from 9 observations
comet nuclear magnitude slope K2 5.0   n/a 4 from 9 observations

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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