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199763 Davidgregory (2006 JJ77)
Classification: Main-belt Asteroid          SPK-ID: 2199763
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227979604842123 1.0387e-07  
a 3.144330097029093 7.3785e-08 AU
q 2.758212774024795 3.176e-07 AU
i .5620728500293124 1.293e-05 deg
node 161.9886963285819 0.001273 deg
peri 148.7944511691876 0.0012749 deg
M 113.2194926432839 6.1255e-05 deg
tp 2456360.014459561034
0.00034665 JED
period 2036.529127404682
n .1767713484455672 6.2222e-09 deg/d
Q 3.530447420033392 8.2846e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      5395 days (14.77 yr)  
   first obs. used      2000-03-03  
   last obs. used      2014-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59728  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 09:25:41  

Additional Information
 Earth MOID = 1.74481 AU 
 T_jup = 3.198 
[ 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 16.1 mag n/a MPO234167  

199763 Davidgregory           Discovered 2006 May 1 by P. A. Wiegert at Mauna Kea.
David Arthur Gregory (b. 1951) is a physician in St. Thomas, Ontario, who collects, displays and assists scientists in identifying and studying meteorites. The name was suggested by P. Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2006 JJ77 = 2002 TJ145 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Mar-31 09:44 UT
(server date/time)  
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