RELIKT-1
RELIKT-1 (sometimes RELICT-1 from Russian: РЕЛИКТ-1) was a Soviet cosmic microwave background anisotropy experiment launched on board the Prognoz 9 satellite on 1 July 1983. It operated until February 1984. It was the first CMB satellite (followed by the Cosmic Background Explorer in 1989) and measured the CMB dipole, the Galactic plane, and gave upper limits on the quadrupole moment.
| Part of | Prognoz 9 |
|---|---|
| Organization | Academy of Sciences of the Soviet Union |
| Wavelength | 37 GHz (8.1 mm) |
| First light | 1 July 1983 |
| Decommissioned | February 1984 |
| Telescope style | cosmic microwave background experiment satellite |
| Angular resolution | 5.8 degree |
A follow-up, RELIKT-2, would have been launched around 1993, and a RELIKT-3 was proposed, but neither took place due to the dissolution of the Soviet Union.
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