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73P/Schwassmann-Wachmann 3-E
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2451920.5 (2001-Jan-11.0) TDB
Reference: JPL K013/11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.6938774627627 8.181e-07  
a 3.06229329930756 8.8162e-06 au
q 0.937436994548815 1.2388e-06 au
i 11.4056211759106 2.8043e-05 deg
node 69.91710448172594 0.00020247 deg
peri 198.7732444491985 0.00029625 deg
M 356.7899338999595 2.7598e-05 deg
tp 2451937.953401424047
(2001-Jan-28.45340142)
0.00020999 TDB
period 1957.350508320545
5.36
0.0084527
2.314e-05
d
yr
n .1839220918632958 7.9425e-07 deg/d
Q 5.187149604066312 1.4934e-05 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.723191563169948E-8 2.859E-10
A2 [EST] 5.810952472839584E-9 1.005E-12
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      4021 days (11.01 yr)  
   first obs. used      1989-12-09  
   last obs. used      2000-12-12  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   norm. resid. RMS      1.2335  
   source      ORB  
   producer      M.S.W. Keesey  
   solution date      2002-May-28 13:52:34  

Additional Information
 Earth MOID = .0410327 au 
 T_jup = 2.782 
[ 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 10.4   n/a IAUC 7534  
comet total magnitude slope K1 15.0   n/a IAUC 7534  

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