Cosmos 212 was one of a series of Soviet Soyuz programme test spacecraft whose purpose was to further test and develop the passenger version. Scientific data and measurements were relayed to earth by multichannel telemetry systems equipped with space-borne memory units. Cosmos 212 and Cosmos 213 automatically docked in orbit on April 15, 1968. Both spacecraft landed on Soviet territory. The Soyuz human spaceflight programme was initiated in the early 1960s as part of the manned lunar programme that was intended to put a Soviet cosmonaut on the Moon. ... April 15 is the 105th day of the year in the Gregorian calendar (106th in leap years). ... 1968 (MCMLXVIII) was a leap year starting on Monday (the link is to a full 1968 calendar). ...

Mission parameters

• Spacecraft: Soyuz 7K-OK
• Mass: 6,530 kg
• Crew: None
• Launched: April 14, 1968 10:00:00 UTC
• Landed: April 19, 1968 08:10 UTC
• Perigee: 186 km
• Apogee: 225 km
• Inclination: 51.7°
• Period: 88.75 minutes
• NSSDC ID: 1968-029A

April 14 is the 104th day of the year in the Gregorian calendar (105th in leap years). ... 1968 (MCMLXVIII) was a leap year starting on Monday (the link is to a full 1968 calendar). ... April 19 is the 109th day of the year in the Gregorian calendar (110th in leap years). ...

Reference

Text comes from NASA NSSDC Master Catalog

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