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C/2012 U1 (PANSTARRS)
Classification: Comet          SPK-ID: 1003216
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456618.5 (2013-Nov-22.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9995332855730301 1.8528e-05  
a 11278.88082208958 447.79 AU
q 5.264016399743143 1.7445e-05 AU
i 56.33899583263247 3.9229e-05 deg
node 26.98252764488447 4.1227e-05 deg
peri 70.0446919022874 0.00027574 deg
M 359.9998151274723 1.1011e-05 deg
tp 2456843.181501211158
(2014-Jul-04.68150121)
0.0025152 JED
period 437519524.5833647
1197863.17
2.6056e+07
7.134e+04
d
yr
n 8.22820422340731E-7 4.9001e-08 deg/d
Q 22552.49762777942 895.38 AU
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      941 days (2.58 yr)  
   first obs. used      2012-10-17  
   last obs. used      2015-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .48837  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-May-24 12:12:46  

Additional Information
 Earth MOID = 4.67551 AU 
 T_jup = 1.577 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.3 mag 0.6 46 2 parameter fit from 67 observations, autocmod 2.6
comet total magnitude slope K1 10.   n/a 46 autocmod 2.6
comet nuclear magnitude M2 11.5 mag 0.7 46 from 81 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 46 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 46 autocmod 2.6

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.5   C/2012 U1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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