title: Development of a space-borne spectrometer to monitor atmospheric ozone.
abstract: A new compact satellite spectrometer dedicated to monitoring terrestrial atmospheric ozone (ozonometer) is in preparation for the Russian Geophysics Program. Four instruments at four satellites (Ionosphere) are intended to monitor the total ozone content by measuring spectra of scattered solar radiation in nadir. The spectrometer is based on the Rowland scheme with a concave holographic diffraction grating. It covers the near UV and visible range of the spectrum, 300-500 nm, with a spectral resolution of ∼0.3  nm. At present, a qualification model has been manufactured and tested. We introduce the description of the instrument and the results of laboratory and ground-based atmospheric calibrations. The ozone amount retrieved from atmospheric measurements using the differential optical absorption spectroscopy (DOAS) method is in good agreement with that measured by the collocated Brewer spectrophotometer and ozone monitoring instrument on board the Aura satellite.
authors.forename: Yury S
authors.initials: YS
authors.lastname: Dobrolenskiy
authors.forename: Dmitry V
authors.initials: DV
authors.lastname: Ionov
authors.forename: Oleg I
authors.initials: OI
authors.lastname: Korablev
authors.forename: Anna A
authors.initials: AA
authors.lastname: Fedorova
authors.forename: Evgeny A
authors.initials: EA
authors.lastname: Zherebtsov
authors.forename: Andrey E
authors.initials: AE
authors.lastname: Shatalov
authors.forename: Sergey N
authors.initials: SN
authors.lastname: Mantsevich
authors.forename: Denis A
authors.initials: DA
authors.lastname: Belyaev
authors.forename: Nikita A
authors.initials: NA
authors.lastname: Vyazovetskiy
authors.forename: Pavel P
authors.initials: PP
authors.lastname: Moiseev
authors.forename: Konstantin N
authors.initials: KN
authors.lastname: Tchikov
authors.forename: Valery M
authors.initials: VM
authors.lastname: Krasavtsev
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Savushkin
authors.forename: Dmitry M
authors.initials: DM
authors.lastname: Rumyantsev
authors.forename: Igor V
authors.initials: IV
authors.lastname: Kananykhin
authors.forename: Alexey I
authors.initials: AI
authors.lastname: Viktorov
authors.forename: Alexey V
authors.initials: AV
authors.lastname: Kozyura
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Moryakin
authors.forename: Anatoly V
authors.initials: AV
authors.lastname: Poberovskii