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Molniya-1Yu

Molniya-1 (Molniya-1Yu likely similar)

The Molniya-1Yu satellites were modified Molniya-1 satellites to test and calibrate the deep space tracking systems of the Soviet lunar program.

The Molniya-1Yu satellites shared the same bus with the comsat series, but transponders were replaced by radio equipment, both operational and new, to be calibrated for tracking purposes.

Two satellites, Kosmos 174 and Kosmos 260 were successfully launched.

Nation: USSR
Type / Application: Experimental
Operator:
Contractors: NPO Prikladnoi Mekhaniki (NPO PM)
Equipment:
Configuration: KAUR-2
Propulsion: KDU-414 (S5.19)
Power: 6 deployable solar arrays, batteries
Lifetime:
Mass:
Orbit: 427 km × 39782 km, 64.7 (#1); 521 km × 39559 km, 64.9 (#2)
Satellite COSPAR Date LS Launch Vehicle Remarks
Kosmos 174 (Molniya-1Yu 11L) 1967-082A 31.08.1967 Ba LC-1/5 Molniya (M)
Kosmos 260 (Molniya-1Yu 15L) 1968-115A 16.12.1968 Ba LC-1/5 Molniya-M Blok-ML
Further Molniya missions: