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7638 Gladman (1984 UX)
Classification: Main-belt Asteroid          SPK-ID: 2007638
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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.

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3135652630491922 7.5833e-08  
a 2.53819045435756 1.2122e-08 au
q 1.742302096867983 1.9534e-07 au
i 6.821763866026691 8.7502e-06 deg
node 9.990330448831774 3.5971e-05 deg
peri 22.49085897976683 3.8374e-05 deg
M 315.1239396478297 1.6796e-05 deg
tp 2457784.618301239498
6.9961e-05 JED
period 1477.01442430683
n .2437349250458062 1.7461e-09 deg/d
Q 3.334078811847137 1.5923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1287  
   data-arc span      17231 days (47.18 yr)  
   first obs. used      1969-01-15  
   last obs. used      2016-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49735  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:57:10  

Additional Information
 Earth MOID = .748771 au 
 Jupiter MOID = 2.12774 au 
 T_jup = 3.367 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO253417  
rotation period rot_per 17.3 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Brinsfield, J.W. (2009) Minor Planet Bul. 36, 64-66.]

7638 Gladman           Discovered 1984 Oct. 26 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Named in honor of Brett Gladman (b. 1966), a Canadian astronomer and dynamicist who has made important contributions to modeling the dynamical evolution of near-earth objects and the transport of meteorites, including those from the moon and Mars. Gladman has also carried out observational surveys of transneptunian objects and in 1997 was codiscoverer of the two irregular satellites of Uranus. Name proposed and citation written by P. Farinella.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1984 UX = 1969 AF = 1988 UN 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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