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15129 Sparks (2000 ET47)
Classification: Main-belt Asteroid          SPK-ID: 2015129
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 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070199567469982 6.3256e-08  
a 2.392794650426517 1.5394e-08 AU
q 1.897438405390771 1.4759e-07 AU
i 4.63638444380952 6.5286e-06 deg
node 352.4047970970945 6.2444e-05 deg
peri 27.83887289695601 6.3888e-05 deg
M 208.209723149211 1.6209e-05 deg
tp 2457770.530407038195
6.4146e-05 JED
period 1351.937362466729
n .2662845261877726 2.5697e-09 deg/d
Q 2.888150895462263 1.858e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      15507 days (42.46 yr)  
   first obs. used      1972-12-02  
   last obs. used      2015-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:22:41  

Additional Information
 Earth MOID = .901323 AU 
 T_jup = 3.497 
[ 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 14.1 mag n/a PDS3 (MPO 102)  

15129 Sparks           Discovered 2000 Mar. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of Branson B. Sparks for achievement as a finalist in the 2001 Discovery Young Scientist Challenge (DYSC), a middle school science competition. Branson is a student at the Alexandria Country Day School, Alexandria, Louisiana.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011002/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2000 ET47 = 1972 XQ = 1983 VA2 = 1992 CA5 = 1998 XW35 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Oct-10 03:39 UT
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