2.5.0 spase://IUGONET/Instrument/ISEE/EISCAT/TRO/photometer 4-wavelength photometer at Tromso 2011-04-01T00:00:00 A 4-wavelengths photometer installed at Tromso, designed to measure simultaneously the 427.8 nm band emission of the N2+ 1NG (0,1) system, the 630.0 nm line emission of the OI, the 670.5 nm band emission of the N2 1PG (5,2) system and 844.6 nm line emission of the OI. spase://IUGONET/Person/Satonori.Nozawa GeneralContact spase://IUGONET/Person/Shinichiro.Oyama GeneralContact spase://IUGONET/Person/Tomoaki.Hori MetadataContact spase://IUGONET/Person/ISEE.Metadata.Management.Group MetadataContact Imager EISCAT spase://IUGONET/Observatory/ISEE/EISCAT/TRO