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P/2012 C3 (PANSTARRS)
Classification: Jupiter-family Comet          SPK-ID: 1003174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455974.5 (2012-Feb-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .626527172629985 0.00096542  
a 9.705904212965722 0.026244 au
q 3.624891488598848 0.00080663 au
i 9.189868050182183 0.019831 deg
node 135.4412675874763 0.014522 deg
peri 344.8516122270328 0.33106 deg
M 4.38675756075974 0.042334 deg
tp 2455839.915960047911
(2011-Oct-05.41596005)
1.843 TDB
period 11044.66196539956
30.24
44.795
0.1226
d
yr
n .0325949314816333 0.0001322 deg/d
Q 15.7869169373326 0.042686 au
  Orbit Determination Parameters
   # obs. used (total)      20  
   data-arc span      58 days  
   first obs. used      2012-01-26  
   last obs. used      2012-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .36119  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:32:02  

Additional Information
 Earth MOID = 2.64203 au 
 Jupiter MOID = .676963 au 
 T_jup = 2.638 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.5   0.6 7 from 17 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 7 autocmod 2.9c
comet nuclear magnitude M2 15.9   0.4 7 from 3 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 7 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 7 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2011.8   P/2012 C3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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