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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 2451889.5 (2000-Dec-11.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000003226503976 3.7837e-06  
a -99544.67133266908 1.1674e+05 AU
q .3211812778439611 7.767e-07 AU
i 160.1654613967298 0.00017907 deg
node 10.76593050269257 0.00038229 deg
peri 51.50877262818584 0.00050245 deg
M -4.882763324876187E-7 8.5891e-07 deg
tp 2451905.059248802359
(2000-Dec-26.55924880)
5.4576e-05 JED
period n/a
n/a
n/a
n/a
d
yr
n 3.138174205515559E-8 5.5202e-08 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      58 days  
   first obs. used      2000-11-26  
   last obs. used      2001-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .9706  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:42:54  

Additional Information
 Earth MOID = .100656 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. 22 2 parameter fit from 48 observations, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 22 autocmod 2.5c
comet nuclear magnitude M2 20.5 mag 0.6 22 from 25 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 22 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 22 autocmod 2.5c

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