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C/2009 E1 (Itagaki)
Classification: Comet          SPK-ID: 1003013
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2454950.5 (2009-Apr-29.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9850726990503303 1.1364e-06  
a 40.17615654508659 0.0030665 au
q .5997215797495478 2.8918e-07 au
i 127.4533831726579 7.4564e-05 deg
node 105.9620111017458 4.6151e-05 deg
peri 48.95523157904768 3.0417e-05 deg
M .08158588793146287 9.3536e-06 deg
tp 2454929.420342415088
(2009-Apr-07.92034242)
1.7984e-05 TDB
period 93014.57547343569
254.66
10.649
0.02916
d
yr
n .003870361157567326 4.4312e-07 deg/d
Q 79.75259151042363 0.0060873 au
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      158 days  
   first obs. used      2009-03-14  
   last obs. used      2009-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .83417  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:29  

Additional Information
 Earth MOID = .229934 au 
 Jupiter MOID = .709181 au 
 T_jup = -0.452 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.5   2. 30 2 parameter fit from 58 observations, autocmod 2.9c
comet total magnitude slope K1 16.5   n/a 30 autocmod 2.9c
comet nuclear magnitude M2 17.0   1. 30 from 415 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 30 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 30 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.3   C/2009 E1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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