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C/1989 W1 (Aarseth-Brewington)
Classification: Hyperbolic Comet          SPK-ID: 1000580
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2447865.5 (1989-Dec-05.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000064988346867 1.0308e-05  
a -4626.812393297276 733.92 au
q .3006888887045017 1.8151e-06 au
i 88.38628146982141 0.00030635 deg
node 345.9168791687965 0.00067208 deg
peri 205.2588926965027 0.00030986 deg
M -7.168037719106207E-5 1.7055e-05 deg
tp 2447888.388590190570
(1989-Dec-27.88859019)
0.00010517 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.131707833215262E-6 7.4514e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      151 days  
   first obs. used      1989-09-01  
   last obs. used      1990-01-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .62447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:29:38  

Additional Information
 Earth MOID = .66777 au 
 Jupiter MOID = .168183 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.2   1. 5 2 parameter fit from 7 observations, autocmod 2.9c
comet total magnitude slope K1 13.   n/a 5 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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