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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 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 6.692936330180873E-13 -8.612041538534517E-14 1.310302428946523E-10 -4.664142124388651E-11 1.864602687671991E-10 -4.858428616149637E-12 -2.090956834137174E-16 -4.095149922491456E-20
q -8.612041538534517E-14 1.53473565107366E-12 8.684592473409617E-11 1.387180641156636E-11 -2.781073171800555E-11 3.232740619530008E-12 -1.310583404857446E-16 7.124341066077787E-19
tp 1.310302428946523E-10 8.684592473409617E-11 4.409700238032503E-8 -7.271592990256715E-9 3.679674403139877E-8 -6.591573136789575E-10 -5.125600256856929E-14 8.864022204319109E-17
node -4.664142124388651E-11 1.387180641156636E-11 -7.271592990256715E-9 4.099344574711392E-8 -4.870595061100324E-8 -1.189288739059401E-9 1.376808941747699E-14 4.155800033755401E-18
peri 1.864602687671991E-10 -2.781073171800555E-11 3.679674403139877E-8 -4.870595061100324E-8 8.776632074440035E-8 2.586637865759649E-10 -5.788497525158951E-14 -1.483708691733712E-17
i -4.858428616149637E-12 3.232740619530008E-12 -6.591573136789575E-10 -1.189288739059401E-9 2.586637865759649E-10 7.864361855845538E-10 1.243636364669006E-15 5.90750067716632E-19
A1 -2.090956834137174E-16 -1.310583404857446E-16 -5.125600256856929E-14 1.376808941747699E-14 -5.788497525158951E-14 1.243636364669006E-15 8.173187297739782E-20 -5.610215833595591E-23
A2 -4.095149922491456E-20 7.124341066077787E-19 8.864022204319109E-17 4.155800033755401E-18 -1.483708691733712E-17 5.90750067716632E-19 -5.610215833595591E-23 1.010158623001021E-24

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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