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C/1999 F1 (Catalina)
Classification: Comet          SPK-ID: 1000251
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2452348.5 (2002-Mar-15.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9988384079468081 8.0549e-06  
a 4981.904589166078 34.549 AU
q 5.786940780535496 3.9772e-06 AU
i 92.02956216805406 3.8101e-05 deg
node 20.01137225489342 3.0405e-05 deg
peri 255.1678679493935 7.0553e-05 deg
M 8.195135027024663E-5 8.5264e-07 deg
tp 2452319.262169195725
(2002-Feb-13.76216920)
0.0011122 JED
period 128437408.9606727
351642.46
1.336e+06
3658
d
yr
n 2.802921694801796E-6 2.9157e-08 deg/d
Q 9958.02223755162 69.058 AU
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      2360 days (6.46 yr)  
   first obs. used      1999-03-13  
   last obs. used      2005-08-28  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .62496  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:15:21  

Additional Information
 Earth MOID = 5.45361 AU 
 T_jup = -0.105 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.6 mag 0.8 43 from 67 observations, assumed slope, autocmod 2.5a
comet total magnitude slope K1 9.   n/a 43 autocmod 2.5a
comet nuclear magnitude M2 9.0 mag 0.6 43 from 51 observations, autocmod 2.5a
comet nuclear magnitude slope K2 5.   n/a 43 autocmod 2.5a
comet nuclear phase coefficient PC 0.03   n/a 43 autocmod 2.5a

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2002.1   C/1999 F1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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