HAARP Quad All-Sky Imager
The images below are "fish-eye" views of the entire sky taken by the
HAARP imager. The imager uses narrow-band interference filters, an
image intensifier tube, and a cooled CCD camera to record the spatial
distribution of various auroral and atmospheric emissions with very
high sensitivity. It can detect optical emissions far below the
visual threshold of the human eye. The 6300 angstrom red line (upper
left) results from excitation of atomic oxygen at altitudes of 200-300
kilometers. The 5577 A green line (lower right) is an emission from
atomic oxygen peaking at altitudes of ~110-150 km. Emissions from
nitrogen produce blue light at about 100 km altitude (upper right).
The lower left image is an unfiltered (white light) image. An
Image Browser is available to view archived images.
Real-Time JPEG Updates (Under Development)
Questions of a technical nature may be submitted via e-mail to:
HAARP Home Page -> http://www.haarp.alaska.edu/