The GOES Solar X-ray Imager
The Geostationary Operational Environmental Satellite
(GOES) Solar X-ray Imager (SXI) is a Wolter Type I
grazing incidence X-ray telescope deployed on the GOES 12 spacecraft. The
SXI instrument (103 kb GIF
image) is designed to obtain a continuous
sequence of coronal x-ray images at a 1-minute
cadence with a 512X512 intensified CCD.
Broadband filters are employed to obtain images at several
wavelength bands between about 6 and 60 Å.
These images are used by the National Oceanic and
Atmospheric Administration's Space Environment Center
and the broader community to monitor solar activity
for its effects on the Earth's upper atmosphere and
near space environment. Dr. John Davis of the MSFC
Solar Physics Branch is Project Scientist for SXI.
GOES 12 was launched on July 23, 2001 at 3:23 a.m. EDT atop an Atlas
2A rocket. Approximately one hour after launch, the spacecraft
deployed its electricity-generating, solar array.
GOES 12 became fully operational on 1003 April 22.
SXI images may be obtained from
National Geophysical Data Center.