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C/2009 R1 (McNaught)
Classification: Hyperbolic Comet          SPK-ID: 1003036
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2455299.5 (2010-Apr-13.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000406751994624 2.11e-06  
a -995.8983735013639 5.163 au
q .4050836498645098 1.3504e-06 au
i 77.03083803769042 7.5951e-05 deg
node 322.622710199475 2.1177e-05 deg
peri 130.6936771145205 0.00020966 deg
M -.002530103067458741 1.9674e-05 deg
tp 2455380.178288002300
2.9972e-05 TDB
period n/a
n 3.136039608806042E-5 2.4387e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      344 days  
   first obs. used      2009-07-20  
   last obs. used      2010-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .79029  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:44:24  

Additional Information
 Earth MOID = .446111 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 9.8   2. 28 2 parameter fit from 162 observations, autocmod 2.5c
comet total magnitude slope K1 7.   n/a 28 autocmod 2.5c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
FirstGov 2020-Aug-11 04:22 UT
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