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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.057732866190401 7.9617e-06  
a -58.26732824709546 0.0080322 au
q 3.363939864961739 3.1315e-06 au
i 1.661741742960259 6.282e-05 deg
node 114.557492007681 0.0022822 deg
peri 135.0832940391088 0.0022849 deg
M -.1513225701275585 3.149e-05 deg
tp 2445040.786883400213
(1982-Mar-12.28688340)
0.00070436 TDB
period n/a
n/a
n/a
n/a
d
yr
n .002215982961774567 4.5821e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      2514 days (6.88 yr)  
   first obs. used      1980-02-11  
   last obs. used      1986-12-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .60588  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:29:29  

Additional Information
 Earth MOID = 2.35052 au 
 Jupiter MOID = .0108537 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 5.8   1. 6 from 32 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 7.25   n/a 6 autocmod 2.9c

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