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C/2007 F1 (LONEOS)
Classification: Hyperbolic Comet          SPK-ID: 1002450
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.


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Orbital Elements at Epoch 2454259.5 (2007-Jun-08.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000085994656018 3.3752e-06  
a -4679.057680391525 183.64 au
q .4023739557141501 1.2188e-06 au
i 116.0820560803464 0.00011701 deg
node 172.8866442298644 4.5603e-05 deg
peri 153.7109378265983 0.00022774 deg
M -.0004396166203348303 2.588e-05 deg
tp 2454402.260357774066
(2007-Oct-28.76035777)
6.6385e-05 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.079402624015359E-6 1.8128e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      217 days  
   first obs. used      2007-03-19  
   last obs. used      2007-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .91326  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:43:55  

Additional Information
 Earth MOID = .57041 au 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.139164210761012E-11 2.573478347578545E-12 -1.576129090162465E-10 -6.577693641396229E-11 -7.437691086754848E-10 6.358126841373819E-11
q 2.573478347578545E-12 1.485569217313235E-12 -5.392536274272914E-11 2.571888110117788E-12 -2.17414275680154E-10 6.693853612559112E-11
tp -1.576129090162465E-10 -5.392536274272914E-11 4.407008359643416E-9 -2.427124687643219E-10 1.117734035150248E-8 -4.502540517123887E-9
node -6.577693641396229E-11 2.571888110117788E-12 -2.427124687643219E-10 2.079617970426044E-9 3.873243395808328E-9 3.617255297796268E-9
peri -7.437691086754848E-10 -2.17414275680154E-10 1.117734035150248E-8 3.873243395808328E-9 5.18663539173384E-8 -5.900422067446055E-9
i 6.358126841373819E-11 6.693853612559112E-11 -4.502540517123887E-9 3.617255297796268E-9 -5.900422067446055E-9 1.369090314619389E-8

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 10.8   0.7 22 2 parameter fit from 49 observations, autocmod 2.5c
comet total magnitude slope K1 11.   n/a 22 autocmod 2.5c
comet nuclear magnitude M2 14.7   0.8 22 from 92 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 22 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 22 autocmod 2.5c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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