The International Consortium for the Continued Operation of Nobeyama Radioheliograph (ICCON)
Nobeyama Radioheliograph (NoRH) is a radio interferometer specially designed to observe the full disk of the Sun at 17 and 34 GHz. Eighty-four antennas with a diameter of 80 cm were installed along a T-shape baseline (North - South: 250 m, East - West: 500 m). The spatial resolution is about 10 arcseconds and 5 arcseconds in 17 GHz and 34 GHz, respectively. The time resolution of NoRH is typically 1 second and 0.1 second for the event mode. NoRH continuously observes the full sun for about eight hours (22:30 - 6:30 UT) every day. The system has been quite stable and NoRH data are available in the period more than 99 % out of the total possible operational window.
The National Astronomical Observatory of Japan (NAOJ) has successfully operated NoRH during these two decades. From April 2015, the Solar-Terrestrial Environment Laboratory, Nagoya University (now Institute for Space-Earth Environmental Research, ISEE) will operate NoRH as a representative of the International Consortium for the Continued Operation of Nobeyama Raidoheliograph (ICCON).
9 November 2016:
NoRH Science Nuggets is updated.
7 November 2016:
The schedule of NoRH_CO is updated.
13 September 2016:
The NoRH_CO manual is updated.
6 May 2016:
Solar Physics with Radio Observations - Continued Operation of Nobeyama Radioheliograph -
9 March 2016: Partial Solar Eclipse
Radio images on March 9, 2016
Images & Movies
NoRH Chief Observer (NoRH_CO)
Data Use Policy
Data are free to use. Anyone can analyze NoRH data at SDAS/NAOJ and at Hinode Science Center at Nagoya. When one wrote a paper using NoRH data taken after April, 2015, he/she should thank ICCON in the Acknowledgement section of the paper.
Samples of Acknowledgements:
Data Analysis Manual (PDF)
- Nobeyama Radioheliograph is operated by the International Consortium for the Continued Operation of Nobeyama Radioheliograph (ICCON). ICCON consists of ISEE/Nagoya University, NAOC, KASI, NICT, and GSFC/NASA.
- This work was performed using Nobeyama Radioheliograph operated by the International Consortium for the Continued Operation of Nobeyama Radioheliograph (ICCON). ICCON consists of ISEE/Nagoya University, NAOC, KASI, NICT, and GSFC/NASA.
NoRH Science Nuggets
NoRH Science Nuggets (updated on 9 November 2016)
Nobeyama Solar Radio Observatory Bibliography
- Nat Gopalswamy (GSFC, NASA)
- Yihua Yan (NAOC)
- Kyungsuk Cho (KASI)
- Mamoru Ishii (NICT)
- Kiyoto Shibasaki (ISEE, Nagoya University)
- Satoshi Masuda (ISEE, Nagoya University)
Contact: norh-help_at_isee.nagoya-u.ac.jp (_at_ = @)