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C/2000 W1 (Utsunomiya-Jones)
Classification: Hyperbolic Comet          SPK-ID: 1000319
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2451888.5 (2000-Dec-10.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000001361936839 5.1419e-06  
a -235826.1941524707 8.9035e+05 AU
q .3211803814371809 1.0701e-06 AU
i 160.1655007583354 0.00024323 deg
node 10.76586640592783 0.00053816 deg
peri 51.50890026848694 0.00070313 deg
M -1.425138957538375E-7 8.0708e-07 deg
tp 2451905.059270540545
(2000-Dec-26.55927054)
7.6082e-05 JED
period n/a
n/a
n/a
n/a
d
yr
n 8.606290682001691E-9 4.8739e-08 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      58 days  
   first obs. used      2000-11-26  
   last obs. used      2001-01-23  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .49948  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:16:10  

Additional Information
 Earth MOID = .100651 AU 
 T_jup = -0.661 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.6 mag 1. 21 2 parameter fit from 48 observations, autocmod 2.5a
comet total magnitude slope K1 10.   n/a 21 autocmod 2.5a
comet nuclear magnitude M2 20.5 mag 0.6 21 from 25 observations, autocmod 2.5a
comet nuclear magnitude slope K2 5.   n/a 21 autocmod 2.5a
comet nuclear phase coefficient PC 0.03   n/a 21 autocmod 2.5a

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