The project entitled CONE-A is under development in KB Arsenal since 1994. By now, as a result of the development, investigation of space gamma-ray bursts with instrumentation installed at COSMOS 2326 and COSMOS 2367 spacecraft was carried out in 1995-2001.
These experiments were conducted with the use of instrumentation of Ioffe Physical-Technical Institute. Their major task was to observe gamma-ray bursts in order to receive data on temporal and spectral characteristics of these transient and unusual phenomena. Gamma-ray bursts observation was conducted synchronously with WIND American spacecraft, which had been placed in L1 point of libration of Earth-Sun system that is 1 500 000 km from the Earth. WIND spacecraft had also been equipped with Ioffe Physical-Technical Institute’s instrumentation. Synchronous observation from the couple of such spacecraft, the distance between which is 1 500 000, is a condition needed in order to increase the accuracy of determination of location of sources of gamma-ray bursts within coelosphere. COSMOS 2326 and COSMOS 2367 spacecraft’s cycle of research of space gamma-ray bursts provided important results, the results confirmed the CONE synchronous astrophysical experiment to be effective. At the same time, high efficiency of installation of the scientific instrumentation as an additional payload aboard the base spacecraft for fundamental space investigation was clearly shown.
On June 25, 2006 from Baykonur cosmodrome there was launched COSMOS-2421 spacecraft equipped with KONUS-A additional experimental equipment dedicated to observation of bursts of gamma radiation in the framework of WIND-KONUS international program. (The spacecraft was developed by KB ARSENAL and manufactured by MZ Arsenal, and the experimental equipment was developed by Ioffe Physical and Technical Institute).