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73P/Schwassmann-Wachmann 3-M
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1002331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453839.5 (2006-Apr-14.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.693940938277251 0.00027288  
a 3.06835160960417 0.0027026 au
q 0.939096814670938 1.0299e-05 au
i 11.3943614399649 0.0020072 deg
node 69.90530158146959 0.005163 deg
peri 198.7775561198109 0.0050665 deg
M 349.8670730198247 0.013836 deg
tp 2453894.757155731472
(2006-Jun-08.25715573)
0.0024484 TDB
period 1963.161888193698
5.37
2.5937
0.007101
d
yr
n .1833776430588898 0.00024228 deg/d
Q 5.197606404537399 0.004578 au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      44 days  
   first obs. used      2006-03-23  
   last obs. used      2006-05-06  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      7  
   norm. resid. RMS      .87669  
   source      ORB  
   producer      Nick Mastrodemos  
   solution date      2006-Aug-22 15:06:45  

Additional Information
 Earth MOID = .0405893 au 
 T_jup = 2.780 
[ 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 21.0   1.4 8 2 parameter fit from 15 observations
comet total magnitude slope K1 15.0   n/a 8 2 parameter fit from 15 observations
comet nuclear magnitude M2 21.8   0.6 8 from 8 observations
comet nuclear magnitude slope K2 5.0   n/a 8 from 8 observations

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