Page still under development.
Building on the experience gained with design and operation of the Fairchild CCD
camera, a second ASI was constructed this time under contract to the National
Research Council of Canada.
Funding for operations is currently provided by the Canadian Space Agency (CSA).
This all-sky imager is a ground-based instrument which was designed and
built at the U of C and is based in Gillam, Manitoba. This unmanned
instrument is housed in its own environmentally controlled container
and takes 170 degree field of view images of the sky once
a second, or can be run at 4 frames per second with a 4 second gap
between each set. The CCD was larger than in the older camera, 255 x 255
pixel elements, each of which are 16 bits deep.
It has an adjustable filter wheel which allows it to take
images of the aurora at 3 different visible wavelengths:
427.8 nm nitrogen emission {Blue-Green},
557.7 nm oxygen emission {Green}, and
630.0 nm oxygen emission {Red}).
All-sky imager on site near Gillam, Manitoba.
ISR Photo Archives: K. Berg
Data is fed to the National Research Council in Ottawa via a satellite data link
for analysis, archiving and distribution. This imager is part of a collection
of ground-based instruments scattered across Canada which make up the
CANOPUS Data Analysis Network.
