Cruise measurements taken with the near XGRS

R. Starr, P. E. Clark, L. G. Evans, S. R. Floyd, T. P. McClanahan, J. I. Trombka, William V. Boynton, S. Bailey, J. Brückner, S. W. Squyres, J. O. Goldsten, R. L. McNutt

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The X-ray/Gamma-ray Spectrometer on the Near Earth Asteroid Rendezvous spacecraft will remotely detect characteristic x-ray and gamma-ray emissions from the surface of 433 Eros to develop global maps of the elemental composition of the asteroid surface. Solar excited x-ray fluorescence in the 1 to 10 keV range will be used to measure the surface abundances of Mg, Al, Si, Ca, Ti, and Fe with spatial resolutions down to 2 km. Gamma-ray emissions in the 0.1 to 10 MeV range will be used to measure cosmic-ray excited emissions from such elements as O, Si, Fe, and H as well as naturally radioactive elements K, Th, and U to surface depths on the order of 10 cm. In-flight calibrations are essential to the understanding and analysis of data collected at Eros.

Original languageEnglish (US)
Pages (from-to)1159-1162
Number of pages4
JournalAdvances in Space Research
Volume24
Issue number9
StatePublished - 1999

Fingerprint

Asteroids
asteroids
Gamma rays
asteroid
rendezvous spacecraft
Space rendezvous
Radioactive elements
Gamma ray spectrometers
gamma rays
X ray spectrometers
X rays
gamma ray spectrometers
x ray fluorescence
Cosmic rays
radioactive isotopes
cosmic ray
cosmic rays
spatial resolution
x rays
spectrometer

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Starr, R., Clark, P. E., Evans, L. G., Floyd, S. R., McClanahan, T. P., Trombka, J. I., ... McNutt, R. L. (1999). Cruise measurements taken with the near XGRS. Advances in Space Research, 24(9), 1159-1162.

Cruise measurements taken with the near XGRS. / Starr, R.; Clark, P. E.; Evans, L. G.; Floyd, S. R.; McClanahan, T. P.; Trombka, J. I.; Boynton, William V.; Bailey, S.; Brückner, J.; Squyres, S. W.; Goldsten, J. O.; McNutt, R. L.

In: Advances in Space Research, Vol. 24, No. 9, 1999, p. 1159-1162.

Research output: Contribution to journalArticle

Starr, R, Clark, PE, Evans, LG, Floyd, SR, McClanahan, TP, Trombka, JI, Boynton, WV, Bailey, S, Brückner, J, Squyres, SW, Goldsten, JO & McNutt, RL 1999, 'Cruise measurements taken with the near XGRS', Advances in Space Research, vol. 24, no. 9, pp. 1159-1162.
Starr R, Clark PE, Evans LG, Floyd SR, McClanahan TP, Trombka JI et al. Cruise measurements taken with the near XGRS. Advances in Space Research. 1999;24(9):1159-1162.
Starr, R. ; Clark, P. E. ; Evans, L. G. ; Floyd, S. R. ; McClanahan, T. P. ; Trombka, J. I. ; Boynton, William V. ; Bailey, S. ; Brückner, J. ; Squyres, S. W. ; Goldsten, J. O. ; McNutt, R. L. / Cruise measurements taken with the near XGRS. In: Advances in Space Research. 1999 ; Vol. 24, No. 9. pp. 1159-1162.
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