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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07493104941619691 3.4271e-08  
a 2.994545156137456 1.6583e-08 au
q 2.770160745063887 9.9786e-08 au
i 10.44806907523537 3.9301e-06 deg
node 159.6519118423992 2.1161e-05 deg
peri 287.8330034498404 3.5403e-05 deg
M 210.5707126738318 2.9616e-05 deg
tp 2459786.147894354769
(2022-Jul-25.64789436)
0.00015738 TDB
period 1892.756413609602
5.18
1.5722e-05
4.304e-08
d
yr
n .1901988007603462 1.5799e-09 deg/d
Q 3.218929567211025 1.7826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2122  
   data-arc span      25244 days (69.11 yr)  
   first obs. used      1951-03-13  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:04:45  

Additional Information
 Earth MOID = 1.80889 au 
 Jupiter MOID = 1.93962 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456859.5 (2014-Jul-21.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07759834149832444 3.4589e-08  
q 2.757530351293418 1.0155e-07 au
tp 2455996.300849931271
(2012-Mar-09.80084993)
0.00014476 TDB
node 159.9151090009464 2.1208e-05 deg
peri 285.6672848896293 3.4504e-05 deg
i 10.43923179973585 3.9298e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2122  
   data-arc span      25244 days (69.11 yr)  
   first obs. used      1951-03-13  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:04:45  

Additional Information
 Jupiter MOID = 1.93962 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.196379846832273E-15 -3.477290428367569E-15 -1.714737175115733E-14 -1.772336087803893E-15 -2.147832041422674E-14 1.274636469894981E-15
q -3.477290428367569E-15 1.031294829101534E-14 3.381508151193627E-13 4.609294734155502E-15 1.337137884352575E-13 -3.225414686348774E-15
tp -1.714737175115733E-14 3.381508151193627E-13 2.095597318981034E-8 -5.525497716945041E-12 3.95530337917153E-9 -2.62487073046673E-12
node -1.772336087803893E-15 4.609294734155502E-15 -5.525497716945041E-12 4.497739920434099E-10 -4.431818250804487E-10 8.982141130689369E-12
peri -2.147832041422674E-14 1.337137884352575E-13 3.95530337917153E-9 -4.431818250804487E-10 1.190536452754971E-9 -9.286344311421452E-12
i 1.274636469894981E-15 -3.225414686348774E-15 -2.62487073046673E-12 8.982141130689369E-12 -9.286344311421452E-12 1.544313145813994E-11

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

[ show close-approach data ]
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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