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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .311082356313241 5.1641e-08  
a 2.541344987108507 8.9464e-09 au
q 1.75077740031395 1.3358e-07 au
i 6.807805374309364 5.5304e-06 deg
node 9.833074434061226 2.9194e-05 deg
peri 22.55979425591101 3.0727e-05 deg
M 296.2199135058646 1.3061e-05 deg
tp 2459262.666059626650
(2021-Feb-17.16605963)
5.4766e-05 TDB
period 1479.768790753714
4.05
7.8139e-06
2.139e-08
d
yr
n .2432812492393732 1.2846e-09 deg/d
Q 3.331912573903065 1.1729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      18376 days (50.31 yr)  
   first obs. used      1969-01-15  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49482  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:29:52  

Additional Information
 Earth MOID = .758651 au 
 Jupiter MOID = 2.13301 au 
 T_jup = 3.366 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO448989  
diameter diameter 5.839 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.3 h n/a LCDB (Rev. 2019-August); 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 Bull. 36, 64-66.]
geometric albedo albedo 0.248   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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