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JPL Small-Body Database Browser
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4210 Isobelthompson (1987 DY5)
Classification: Main-belt Asteroid          SPK-ID: 2004210
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07493104936469787 3.4297e-08  
a 2.994545156072102 1.6596e-08 au
q 2.770160745157646 9.9842e-08 au
i 10.44806907496673 3.9336e-06 deg
node 159.6519116360305 2.1172e-05 deg
peri 287.8330038086232 3.5424e-05 deg
M 210.5707125471371 2.9625e-05 deg
tp 2459786.147894995167
(2022-Jul-25.64789500)
0.00015742 TDB
period 1892.75641354764
5.18
1.5735e-05
4.308e-08
d
yr
n .1901988007665726 1.5812e-09 deg/d
Q 3.218929566986558 1.784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2114  
   data-arc span      25026 days (68.52 yr)  
   first obs. used      1951-03-13  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:07:04  

Additional Information
 Earth MOID = 1.80889 au 
 Jupiter MOID = 1.93962 au 
 T_jup = 3.225 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.5   n/a MPO347556  
diameter diameter 10.280 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4210 Isobelthompson           Discovered 1987 Feb. 21 by H. Debehogne at the European Southern Observatory.
The British archaeologist Isobel Thompson is co-author of Alban's Buried Towns: An Assessment of St. Albans' Archaeology up to A.D. 1600, the first in a series of studies of important archaeological sites in England. The citation was prepared by M. M. Dworetsky.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

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Alternate Designations
 1987 DY5 = 1951 EL = 1979 QZ5 = 1982 DE5 = 1982 DJ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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