Okean-O n°1

The Okean-O series, a joint Ukrainian/Russian remote sensing program, represents a new generation spacecraft over the Okean-O1 series with regard to the sensor complement. All the scientific assets of the spacecraft, scientific data downloaded from each instrument are mutually divided between Russia and Ukraine on an equal basis. The satellite is three-axis stabilized with an attitude pointing accuracy of ±10 arcmin and an angular stabilization velocity of ±0.0015º/s. Solar power of up to 3.5 kW is provided. The spacecraft mass is 6150 kg, the mass of the onboard special complex (BSC) is 1520 kg. The spacecraft bus, a cylinder, has a diameter of 1.9 m and a length of 6.6 m. The S/C design life is three years. Note: The Okean-O-1 spacecraft is also being referred to as Sich-2. Okean-O n°1 stopped all operations in the fall of 2000 (after a year of operations) due to attitude control problems of the spacecraft. At the time, both space agencies, NKAU and RKA (Russian Space Agency or Rosaviakosmos), did not provide any funding for the development of a further Okean-O spacecraft due to the tight economic situation in the Ukraine and in Russia.