Spektr-UF (also known as Spektr-UV or SUV) is a UV space observatory mission. The mission is led by Russia, but involves multiple international partners. The mission is also known as World Space Observatory Ultraviolet (WSO-UV).
The Spektr-UF project is led by Russia (Roskosmos) with international cooperation including three basic participants: Russia (provides the telescope, spacecraft, launch facilities, ground segment), Spain (ISSIS, ground segment) and Germany (spectrographs).
Originally the satellite was to be built on the Spektr bus, a derivative of the Prognoz-EW-Bus and to be launched on a Proton-K Blok-DM-2 booster, but budget problems have forced a redesign. Now it will be based on the smaller Navigator bus and will be launched on a Zenit-3F combination.
The main instrument is the T-170M 1.7-meter Ritchey-Chretien telescope, a lighter version of the originally planned T-170 telescope. It is equipped with three instruments:
The future of this project is uncertain. Originally a launch in May 2021 is planned. A switch to a Proton-M Blok-DM-03 launch vehicle is likely, as the Zenit-3F will be most probably phased out long before the planned launch date. It will be placed into a geosynchronous orbit with an inclination of 51.6°. In May 2019, a launch date in October 2025 was announced.
|Nation:||Russia, Germany, Italy, Ukraine, Hungary, Spain|
|Type / Application:||Astronomy, UV|
|Equipment:||T-170M 1.7-meter Ritchey-Chretien telescope, HIRDES, LSS, ISSIS|
|Power:||2 deploayable solar arrays, batteries|
|Orbit:||geosynchronous orbit, 51.6°|
|Spektr-UF (Spektr-UV, SUV)||-||2025||Ba||Proton-M Blok-DM-03 ?|