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214869 (2007 PA8)
Classification: Apollo [NEO, PHA]          SPK-ID: 2214869
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 157 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6617130781841646 7.6866e-09  
a 2.823747765309832 4.8575e-08 AU
q .9552369395110072 1.5139e-08 AU
i 1.983884958000135 1.1242e-06 deg
node 142.639830237323 9.1683e-05 deg
peri 292.3344588203174 9.1028e-05 deg
M 153.7745465438183 3.9068e-06 deg
tp 2456260.180427308076
(2012-Nov-28.68042731)
1.0144e-06 JED
period 1733.154492464387
4.75
4.4722e-05
1.224e-07
d
yr
n .2077137390609148 5.3598e-09 deg/d
Q 4.692258591108658 8.0718e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      676  
   # delay obs. used      15  
   # Doppler obs. used      26  
   data-arc span      3957 days (10.83 yr)  
   first obs. used      2002-07-13  
   last obs. used      2013-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43883  
   data source      ORB  
   producer      OSOD/JPL  
   solution date      2014-Aug-28 14:29:40  

Additional Information
 Earth MOID = .0241422 AU 
 T_jup = 2.947 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4 mag n/a MPO266614  
rotation period rot_per 85. h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Observers at Arecibo and Goldstone. Lead researcher not given or known. (2012) http://www.naic.edu/~pradar/ http://www.jpl.nasa.gov/asteroidwatch]

214869 (2007 PA8)          Discovered 2007-Aug-09 by LINEAR at Socorro (704)
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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