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C/1980 E1 (Bowell)
Classification: Hyperbolic Comet          SPK-ID: 1000541
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2444972.5 (1982-Jan-03.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.057731876173255 5.0344e-06  
a -58.26829222588107 0.0050785 AU
q 3.363937831611605 1.9185e-06 AU
i 1.661712630614323 3.8781e-05 deg
node 114.5581951921299 0.0013786 deg
peri 135.0826233919265 0.0013803 deg
M -.1513193748893878 1.9886e-05 deg
tp 2445040.787136080390
(1982-Mar-12.28713608)
0.00042992 JED
period n/a
n/a
n/a
n/a
d
yr
n .002215927970844309 2.897e-07 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      2514 days (6.88 yr)  
   first obs. used      1980-02-11  
   last obs. used      1986-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .84636  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:42:24  

Additional Information
 Earth MOID = 2.35052 AU 
[ 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 6.0 mag 1. 5 2 parameter fit from 34 observations, autocmod 2.5c
comet total magnitude slope K1 7.   n/a 5 autocmod 2.5c

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