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90449 Brucestephenson (2004 BR116)
Classification: Main-belt Asteroid          SPK-ID: 2090449
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2173494353139868 1.2728e-07  
a 3.064767365122648 4.7607e-08 au
q 2.398641908944505 4.0684e-07 au
i 19.98985098159567 1.1711e-05 deg
node 24.92888864898115 2.115e-05 deg
peri 181.6248329766017 2.8068e-05 deg
M 66.2192544969798 1.7224e-05 deg
tp 2457240.023892414682
9.1205e-05 JED
period 1959.723040020533
n .18369942723959 4.2803e-09 deg/d
Q 3.73089282130079 5.7955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      6819 days (18.67 yr)  
   first obs. used      1996-10-16  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .65896  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 14:13:52  

Additional Information
 Earth MOID = 1.3943 au 
 Jupiter MOID = 1.23094 au 
 T_jup = 3.106 
[ 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 14.5 mag n/a MPO244864  

90449 Brucestephenson           Discovered 2004 Jan. 27 by the Catalina Sky Survey.
C. Bruce Stephenson (b. 1929) was appointed the Warner professor of astronomy at Case Western Reserve University and the Warner and Swasey Observatory in 1988. In 1977 he was codiscoverer of the unusual star SS 433.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 2004 BR116 = 1999 CT128 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-29 01:56 UT
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