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C/2007 F1 (LONEOS)
Classification: Hyperbolic Comet          SPK-ID: 1002450
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ hide orbit diagram ]
Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2454249.5 (2007-May-29.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000081320429988 2.896e-06  
a -4947.95762776604 176.2 AU
q .4023700418528164 1.0853e-06 AU
i 116.0814929450426 0.00011002 deg
node 172.8864703313042 3.9722e-05 deg
peri 153.7113811490297 0.00019774 deg
M -.0004325900490889226 2.3107e-05 deg
tp 2454402.260618817894
6.2186e-05 JED
period n/a
n 2.831816553483679E-6 1.5126e-07 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      217 days  
   first obs. used      2007-03-19  
   last obs. used      2007-10-22  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .98943  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:21:04  

Additional Information
 Earth MOID = .569043 AU 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 10.8 mag 0.7 21 2 parameter fit from 49 observations, autocmod 2.5a
comet total magnitude slope K1 11.   n/a 21 autocmod 2.5a
comet nuclear magnitude M2 14.7 mag 0.9 21 from 93 observations, autocmod 2.5a
comet nuclear magnitude slope K2 5.   n/a 21 autocmod 2.5a
comet nuclear phase coefficient PC 0.03   n/a 21 autocmod 2.5a
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
FirstGov 2014-Apr-16 07:24 UT
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