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Finding Hazardous Asteroids Using Infrared and Visible Wavelength Telescopes (2019) / Chapter Skim
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Appendix B: Studies of the Accuracy of the Near Earth Asteroid Thermal Model
Pages 51-53

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From page 51...
... (2018) investigated the performances of the NEATM and the FRM in a study of 1 million synthetic, thermophysically generated NEOs with physical properties, spin vectors, and observational circumstances randomly selected from within realistic bounds.1 They concluded that the NEATM provides statistically more robust diameter estimates for solar phase angles less than ~65 degrees.
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From page 52...
... compared the performances of the NEATM and the Standard Thermal Model (STM) on thermal-infrared fluxes of 1,517 main-belt asteroids taken from the IRAS and MSX catalogues, finding that the STM underestimates asteroid diameters by ~10 percent and the NEATM underestimates diameters by ~4 percent when compared to radar- and occultation-derived diameters.
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From page 53...
... Masiero, C.R. Nugent, et al., 2016, NEOWISE Diameters and Albedos V1.0, NASA Planetary Data System 247, https://sbn.psi.edu/pds/resource/neowisediam.
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Key Terms

  • thermal model
  • solar phase
  • phase angles
  • asteroid thermal
  • near earth

  • earth asteroid
  • astronomical journal
  • thermophysical modeling
  • thermal data
  • standard thermal

  • wise thermal
  • earth objects
  • fast rotating
  • rotating model
  • percent uncertainties

  • uncertainties reported
  • underestimates diameters
  • telescope receives
  • warm spitzer
  • model asteroid

  • spherical model
  • underestimates asteroid
  • realistic nonzero
  • asteroid diameters
  • receives thermal

  • generated using
  • low solar
  • provided statistical
  • object properties
  • spitzer observations


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