Bulgaria 1300

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Intercosmos 22-Bulgaria 1300
Operator BSA
Major contractors BAC, BAS
SSA
Mission type Science
Launch date 7 August 1981
Carrier rocket Vostok-2M
Launch site Plesetsk launch site
COSPAR ID 1981-075A
Mass 1,500 kg
Orbital elements
Regime PO
Inclination 81,2°
Apoapsis 906 kilometres (563 mi)
Periapsis 825 kilometres (513 mi)
Orbital period 101.6

Interkosmos 22, more commonly known as Bulgaria 1300 (Bulgarian: Интеркосмос 22-България 1300), is the first artificial satellite of Bulgaria.

Contents

Description [edit]

The satellite was developed by the Bulgarian Space Agency around the "Meteor" bus, provided by the Soviet Union as part of the Interkosmos program. Assembly took place in Bulgaria, and the spacecraft was launched from Plesetsk in 13:35 local time on 7 August, 1981. During that same year the Bulgarian government organized a massive celebration to commemorate the 1300th anniversary of the country's founding. Interkosmos 22 was successfully inserted in a near-Polar orbit. The outer skin of the spacecraft, including the solar panels, is coated with a conducting material in order to allow the proper measurement of electric fields and low energy plasma. Power is provided by the two solar panels, which generate 2 kW of electricity. A rechargeable battery pack is used as an energy supply when the spacecraft is in an eclipse period. Gathered data is stored on two tape recorders, each with a capacity of 60 megabits. The main transmitter radiates 10 W in the 130-MHz band. No operational limit was planned. As of 2009, the satellite is operational and still on BSA's list of active programs, and provides data about the extreterrestrial environment over Earth's polar regions.[1]

Equipment [edit]

The satellite contains a large set of scientific devices, designed and built in Bulgaria:

A copy of the SEIT unit from the satellite, National Polytechnical Museum in Sofia
  • Ion Drift Meter combined with a Retarding Potential Analyzer;
  • Spherical Electrostatic Ion Trap (SEIT);
  • Cylindrical Langmuir probe;
  • Double spherical electron temperature probes;
  • Low-Energy Electron-Proton Electrostatic Analyzer Array in 3 orthogonal directions
  • Ion Energy-Mass Composition Analyzers
  • Wavelength Scanning UV Photometer
  • Proton Solid-State Telescope
  • Visible Airglow Photometers
  • Triaxial Spherical Vector Electric Field Probes
  • Triaxial Fluxgate Magnetometer

See also [edit]

Sources [edit]