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JPL Small-Body Database Browser
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15523 Grenville (1999 XE151)
Classification: Main-belt Asteroid          SPK-ID: 2015523
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .161784112908316 4.2607e-08  
a 2.775167400446098 1.5257e-08 au
q 2.326189404392849 1.193e-07 au
i 10.24496893113261 4.6798e-06 deg
node 103.4201735250874 2.3702e-05 deg
peri 228.6575786571144 2.6974e-05 deg
M 203.1874279235955 1.4389e-05 deg
tp 2459736.047260413185
6.8923e-05 TDB
period 1688.6210731862
n .2131917016295009 1.7581e-09 deg/d
Q 3.224145396499348 1.7726e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1526  
   data-arc span      10648 days (29.15 yr)  
   first obs. used      1990-11-12  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:50:31  

Additional Information
 Earth MOID = 1.32924 au 
 Jupiter MOID = 2.14289 au 
 T_jup = 3.293 
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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 MPO492924  
diameter diameter 4.883 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.745 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.355   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

15523 Grenville           Discovered 1999 Dec. 9 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Grenville Turner (b. 1936), a geochronologist and meteoriticist, refined the argon-39/argon-40 age-dating technique that provides information on collisional and formation histories of meteorites and minor planets. The name was suggested by E. K. Gibson.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

Alternate Designations
 1999 XE151 = 1990 WA1 = 1998 KR60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Feb-18 16:28 UT
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