The first Spacelab mission, in orbit in the payload bay of the Space Shuttle
(STS-9) from 28 November-8 December 1983, carried a multi-disciplinary
payload intended to demonstrate that good science could be done on short
An X-ray spectrometer, measuring 2-30 keV photons (although 2-80
keV was possible), was on the pallet. The primary science objective
was to study detailed spectral features in cosmic sources and their
temporal changes. The instrument was a gas scintillation proportional
counter (GSPC) with ~ 180 sq-cm area and energy resolution of 9% at
7 keV. The detector was collimated to a 4.5 deg (FWHM) field of
view. There were 512 energy channels.
Data were accumulated for all intended targets. These included: Cyg
X-2, 4U1636-53, Her X-1, Coma, Cyg X-3, Perseus, Cyg X-1, Cas A,
Crab, Cen X-3, Cen X-2, and Vela X-1.
HEASARC Home |
Last modified: Thursday, 26-Jun-2003 13:48:18 EDT
The HEASARC is hiring! - Applications are now being accepted for a scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the HEASARC at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.