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C/2012 A1 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003166
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456199.5 (2012-Sep-29.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001019083471445 2.3447e-05  
a -7462.615898128145 171.68 AU
q 7.605028515524856 2.9682e-05 AU
i 120.8995512092784 5.9319e-05 deg
node 277.9721208905181 2.559e-05 deg
peri 191.7393055219558 0.00037078 deg
M -.0006518733541147588 2.249e-05 deg
tp 2456625.878982475306
(2013-Nov-29.37898248)
0.0056329 JED
period n/a
n/a
n/a
n/a
d
yr
n 1.528859021920745E-6 5.2756e-08 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      1029 days (2.82 yr)  
   first obs. used      2012-01-02  
   last obs. used      2014-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .66876  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:40:03  

Additional Information
 Earth MOID = 6.63663 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 8.4 mag 0.6 49 from 131 observations, assumed slope, autocmod 2.6
comet total magnitude slope K1 7.   n/a 49 autocmod 2.6
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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