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73P/Schwassmann-Wachmann 3-BQ
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1002393
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.692453880247705 0.0069896  
a 3.05370675559865 0.068021 au
q 0.939155663545736 0.00042503 au
i 11.3882612457051 0.064563 deg
node 69.8657752054544 0.05408 deg
peri 198.8198463106619 0.037345 deg
M 352.9259732753705 0.24705 deg
tp 2453894.800427110940
(2006-Jun-08.30042711)
0.057872 TDB
period 1949.123787153984
5.34
65.124
0.1783
d
yr
n .1846983769695072 0.0061712 deg/d
Q 5.168257847651573 0.11512 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      7 days  
   first obs. used      2006-04-25  
   last obs. used      2006-05-02  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      9  
   norm. resid. RMS      1.1288  
   source      ORB  
   producer      Nick Mastrodemos  
   solution date      2006-Aug-22 15:55:03  

Additional Information
 Earth MOID = .0406116 au 
 T_jup = 2.788 
[ 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 20.8   0.7 1 2 parameter fit from 12 observations
comet total magnitude slope K1 10.0   n/a 1 2 parameter fit from 12 observations
comet nuclear magnitude M2 23.4   0.5 1 from 3 observations
comet nuclear magnitude slope K2 5.0   n/a 1 from 3 observations

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