Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
JPL Small-Body Database Browser
Search: [ help ]  
159778 Bobshelton (2003 MZ1)
Classification: Main-belt Asteroid          SPK-ID: 2159778
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2006800483081457 8.8846e-08  
a 2.4495208031088 2.2974e-08 au
q 1.957950850009118 2.1323e-07 au
i 1.587546223229618 5.3121e-06 deg
node 265.7297236278337 0.0004714 deg
peri 40.09856528068526 0.00047237 deg
M 119.9080411866083 2.9849e-05 deg
tp 2457134.092062549252
0.00011501 JED
period 1400.296892690977
n .2570883373940659 3.6168e-09 deg/d
Q 2.941090756208482 2.7584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      8482 days (23.22 yr)  
   first obs. used      1992-10-03  
   last obs. used      2015-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57235  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 08:06:58  

Additional Information
 Earth MOID = .942829 au 
 Jupiter MOID = 2.29845 au 
 T_jup = 3.468 
[ 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 16.6 mag n/a MPO351974  

159778 Bobshelton           Discovered 2003 June 24 by D. Healy at Junk Bond Observatory.
Robert Shelton (b. 1948), nineteenth president of the University of Arizona, chaired the Keck Telescope Board from 1997 to 2000. His managerial and fundraising skills contributed to the success of the SOAR Telescope in Chile and the SALT facility in South Africa.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080618/MPCPages.arcLast Updated: 2008-06-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-30 03:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin