spase://SMWG/Instrument/NOB_RH/NORH

The Nobeyama Radioheliograph (NoRH) is a radio telescope
dedicated solar observations. It consists of 84 parabolic antennas with
80 cm diameter, sitting on lines of 490 m length in the east/west direction
and of 220 m length in the north/south direction. The first observation was
in April, 1992 and daily 8-hour observations have been done since June, 1992.

Frequency: 17GHz (Right and left circular polarization), 34GHz (only intensity)
Field of view Solar full disk
Spatial resolution 10 arcsec (17GHz), 5 arcsec (34GHz)
Temporal resolution 0.1 sec (Event), 1 sec (Steady)

As the NoRH is a radio interferometer, original data are sets of
correlation values of all the combination of antennas. They correspond
to the spatial Fourier components of the brightness distribution of the
solar disk. In most cases, it is necessary to synthesize images from the
original raw data.

To maximize the data use, we prepare images, indices and other related
materials routinely and put them on our Web page at
http://solar.nro.nao.ac.jp/norh/index.html. This Web page is to help
the scientists in the world to look for interesting phenomena detected by
the NoRH and to start the actual analysis using the original data set.
Software for image synthesis and analyses are available for remote
use.