Complex Orbital Observations Near-Earth of Activity of the Sun, or CORONAS, was a Russian Solar observation satellite programme. Three satellites were launched: CORONAS-I, CORONAS-F, and CORONAS-Photon.
CORONAS-Photon was launched on 30 January 2009, from Plesetsk Cosmodrome, aboard the final flight of the Tsyklon-3 rocket. On 1 December 2009 all scientific instruments on the satellite were turned off due to the problems with power supply that were caused by a design flaw. On 18 April 2010 the creators of the satellite announced it was lost "with a good deal of certainty".
The satellite had 11 instruments:
Natalya-2M-rad – High energy radiation spectrometer – radiation
RT-2 – Roentgen Telescope-2
Penguin-M – Hard X-ray polarimeter-spectrometer
Konus-RF – X-ray and gamma-ray spectrometer
BRM – Fast X-ray Monitor
PHOKA – Multi-channel ultraviolet monitor
TESIS – Telescope-spectrometer for imaging solar spectroscopy in X-rays
Electron-M-PESCA – Charged particle analyzer
STEP-F – Satellite telescope of electrons and protons
Natalya-2M-particles – High energy radiation spectrometer – particles
↑КОРОНАС-ФОТОН, по-видимому, умерArchived 2010-04-22 at the Wayback Machine [Coronas-Foton is apparently dead] (in Russian). Official press release of the Laboratory of X-Ray Astronomy of the Sun of the Russian Academy of Sciences.
