urn:x-wmo:md:jp.go.nict.swc:iono_realtime 2014-07-02T04:48:00Z DCPC Tokyo Space Weather Center, National Institute of Information and Communications Technology mailto:swcask001@nict.go.jp tel:+81-42-327-6329 spaceWeather ionosphere ionosonde observation Real-time updated ionogram for Wakkanai (45.16N, 141.75E), Kokubunji (35.71N, 139.49E), Yamagawa (31.20N, 130.62E), and Okinawa (26.68N, 128.15E). Latest picture, MPEG movie, and 4-days summary are available. 26.68 45.17 128.15 141.75 Wakkanai Kokubunji Yamagawa Okinawa ionosphere 15-minute text/html image/png video/mpeg shiftJIS http://wdc.nict.go.jp/IONO/HP2009/realtime_e.html no restriction environment