Spectral UV

from Wikipedia, the free encyclopedia
Spectral UV
Spectral UV
Type: Space telescope ( UV range )
Country: RussiaRussia Russia , SpainSpainSpain 
Mission dates
Dimensions: 2840 kg
Begin: 2025 (planned)
Status: planned
Orbit data
Rotation time : 23h 56min
Orbit inclination : 51.6 °

Spektr-UV (also: World Space Observatory-Ultraviolet, WSO-UV; Russian Спектр-УФ , Spektr-UF) is an international space telescope with a diameter of 1.7 meters for observations in the ultraviolet range . The start was originally planned for 2016, but postponed first to 2020, then to May 2021 due to the US sanctions against Russia due to the crisis in Ukraine in 2014 . As of April 2019, a start is Template: future / in 5 yearsplanned for 2025 .

construction

The satellite is based on the Navigator platform of the Russian space company NPO Lavochkin . Navigator was previously in use with the Elektro-L 1 weather satellite and the Spektr-R space radio telescope .

The telescope itself is called T-170M and has a diameter of 170 cm. It is a Ritchey-Chrétien-Cassegrain telescope with a field of view of 0.5 ° and a focal length of 17 m. There are three spectrographs in use that cover the wavelength ranges 115–176 nm, 174–310 nm and 115–310 nm. The spectrographs should originally have been supplied by Germany, after a withdrawal of German participation they are now being developed by the Astronomical Institute of the Russian Academy of Sciences .

Delays due to sanctions

Since the UV detectors with the required sensitivity are not manufactured in Russia, they were ordered from the British company E2V, which in turn uses components from the USA. In the course of the crisis in Ukraine in 2014, the USA tightened export conditions to Russia and did not issue any approval for these components. E2V will manufacture the detectors with alternative components, which will extend the delivery time by one and a half years so that the originally planned start date cannot be met.

Web links

Individual evidence

  1. ↑ a b Нayчнaя пpoгpaммa пpoeктa «Cпeктp-YФ». (PDF) In: sovet.cosmos.ru. April 2, 2019, Retrieved April 27, 2019 (Russian).
  2. ↑ Orbit. (No longer available online.) Archived from the original on October 17, 2014 ; accessed on December 9, 2014 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.wso-uv.org
  3. ↑ трасса. (JPG) (No longer available online.) July 19, 2013, archived from the original on December 20, 2014 ; Retrieved December 9, 2014 (Russian). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.wso-uv.org
  4. ↑ TASS: Разработчик: запуск российской обсерватории "Спектр-УФ" сдвинулся на 2021 год. June 26, 2015. Retrieved June 29, 2015 (Russian).
  5. ^ WSO-UV Spanish Team: Telescope. October 10, 2012, accessed December 9, 2014 .
  6. ↑ a b INASAN: World Space Observatory UV Spectrographs (Wuvs). (No longer available online.) Archived from the original on December 20, 2014 ; accessed on December 9, 2014 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.wso-uv.org
  7. ↑ Anatoly Zak: Spectrum-UF. August 18, 2014, accessed December 9, 2012 .
  8. ^ RIA Novosti : Sanctions against Russia endanger the new space telescope. November 27, 2014, accessed December 8, 2014 .