Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
7638 Gladman (1984 UX)
Classification: Main-belt Asteroid          SPK-ID: 2007638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3110823355918495 5.0031e-08  
a 2.541344996141244 8.5678e-09 au
q 1.750777459196966 1.2967e-07 au
i 6.807805742321292 4.9319e-06 deg
node 9.83307229393295 2.7822e-05 deg
peri 22.55982114651606 2.922e-05 deg
M 296.2198890430664 1.2564e-05 deg
tp 2459262.666161577952
(2021-Feb-17.16616158)
5.2692e-05 TDB
period 1479.768798643056
4.05
7.4832e-06
2.049e-08
d
yr
n .2432812479423264 1.2303e-09 deg/d
Q 3.331912533085521 1.1233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1907  
   data-arc span      18781 days (51.42 yr)  
   first obs. used      1969-01-15  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48934  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:42:44  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 10:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin