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73P/Schwassmann-Wachmann 3-BC
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1002378
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.700467515087574 0.0035149  
a 3.13424236839265 0.036175 au
q 0.938807404922457 0.00018109 au
i 11.4587061463897 0.031602 deg
node 69.95554650558832 0.03058 deg
peri 198.7461327274749 0.0225 deg
M 353.497734320052 0.11842 deg
tp 2453893.106609153108
(2006-Jun-06.60660915)
0.032918 TDB
period 2026.736516743531
5.55
35.088
0.09607
d
yr
n .1776254569974551 0.0030752 deg/d
Q 5.329677331862838 0.061514 au
  Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      11 days  
   first obs. used      2006-04-25  
   last obs. used      2006-05-06  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      8  
   norm. resid. RMS      1.0915  
   source      ORB  
   producer      Nick Mastrodemos  
   solution date      2006-Aug-22 15:26:17  

Additional Information
 Earth MOID = .0409545 au 
 T_jup = 2.746 
[ 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 19.8   0.8 3 2 parameter fit from 18 observations
comet total magnitude slope K1 50.0   n/a 3 2 parameter fit from 18 observations
comet nuclear magnitude M2 20.1   0.3 3 from 7 observations
comet nuclear magnitude slope K2 5.0   n/a 3 from 7 observations

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