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C/2011 Q1 (PANSTARRS)
Classification: Comet          SPK-ID: 1003143
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455823.5 (2011-Sep-19.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9979219318255278 0.00010365  
a 3262.687788642823 162.75 AU
q 6.78008765681774 9.2606e-05 AU
i 94.86196749797267 0.00038418 deg
node 142.2439476507595 0.00029983 deg
peri 135.9261499811605 0.005844 deg
M .0004312785989294704 3.207e-05 deg
tp 2455741.951287205078
(2011-Jun-29.45128721)
0.073235 JED
period 68070932.9863431
186368.06
5.0932e+06
1.394e+04
d
yr
n 5.288600937381392E-6 3.957e-07 deg/d
Q 6518.595489628828 325.15 AU
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      313 days  
   first obs. used      2011-08-17  
   last obs. used      2012-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .40058  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:44:47  

Additional Information
 Earth MOID = 6.01862 AU 
 T_jup = -0.272 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.5 mag 0.8 12 from 28 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 12 autocmod 2.5c
comet nuclear magnitude M2 11.3 mag 0.4 12 from 10 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.5c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2011.5   C/2011 Q1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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