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9064 Johndavies (1993 BH8)
Classification: Main-belt Asteroid          SPK-ID: 2009064
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287108208991162 5.7338e-08  
a 2.433481105334357 1.6081e-08 AU
q 2.120265754624283 1.4002e-07 AU
i 8.133629703493721 5.1444e-06 deg
node 120.325553623116 4.3777e-05 deg
peri 108.4138934828527 4.8766e-05 deg
M 179.3007413171472 2.4124e-05 deg
tp 2456309.910487000929
9.012e-05 JED
period 1386.565514751108
n .2596343239249108 2.5737e-09 deg/d
Q 2.74669645604443 1.8151e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      8543 days (23.39 yr)  
   first obs. used      1991-10-07  
   last obs. used      2015-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48069  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:16:41  

Additional Information
 Earth MOID = 1.12794 AU 
 T_jup = 3.481 
[ 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 13.7 mag n/a MPO266006  

9064 Johndavies           Discovered 1993 Jan. 21 by Spacewatch at Kitt Peak.
John K. Davies (b. 1955) of the Joint Astronomy Centre was instrumental in the successful discovery and follow-up of (3200) Phaethon and several comets with the IRAS satellite in 1983. He has also carried out studies of the infrared nature of distant minor planets and authored a number of popular books and articles.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1993 BH8 = 1997 AV22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Mar-30 04:27 UT
(server date/time)  
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