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C/1959 Q1 (Alcock)
Classification: Hyperbolic Comet          SPK-ID: 1001103
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2436832.5 (1959-Sep-21.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001309059245038 0.00082622  
a -878.8068005831883 554.57 au
q 1.150410166905681 0.00012551 au
i 48.25893988626557 0.0058202 deg
node 159.9199351440614 0.0060088 deg
peri 124.7130323415302 0.011796 deg
M .001300938052345243 0.0012309 deg
tp 2436798.113129223866
(1959-Aug-17.61312922)
0.014595 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.783240588579963E-5 3.5811e-05 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      68 days  
   first obs. used      1959-08-29  
   last obs. used      1959-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .25791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:29:14  

Additional Information
 Earth MOID = .367653 au 
 Jupiter MOID = .119375 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet nuclear magnitude M2 18.1   0.4 2 from 10 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 2 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 2 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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