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C/2016 A1 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003432
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458069.5 (2017-Nov-12.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001966504811738 3.6775e-06  
a -2709.254728208949 5.0653 au
q 5.327762459247099 2.42e-06 au
i 121.1853727914334 1.2512e-05 deg
node 128.1744513459093 8.0471e-06 deg
peri 10.32002761991665 3.8801e-05 deg
M -7.947142792835521E-5 2.2258e-07 deg
tp 2458080.870556027226
(2017-Nov-23.37055603)
0.00039061 TDB
period n/a
n/a
n/a
n/a
d
yr
n 6.989229703285084E-6 1.9601e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      2139  
   data-arc span      1506 days (4.12 yr)  
   first obs. used      2016-01-01  
   last obs. used      2020-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .54254  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:21  

Additional Information
 Earth MOID = 4.3536 au 
 Jupiter MOID = .0670929 au 
 T_jup = -1.482 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.4   0.6 39 from 871 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 9.25   n/a 39 autocmod 2.9c
comet nuclear magnitude M2 9.9   0.6 39 from 1147 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 39 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 39 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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