1975 April 19 - 07:30 GMT - Launch Vehicle: Kosmos 3. Kosmos 11K65M 53731-279 Aryabhata Mass: 360 kg (790 lb). Spacecraft: Aryabhata. Agency: ISRO. Perigee: 398 km (247 mi). Apogee: 409 km (254 mi). Inclination: 50.70 deg. Period: 92.60 min. Atmospheric research. Experimental satellite for satellite technology and some scientific experiments. Launched from a cosmodrome in the USSR.

1975 June 3 - 09:00 GMT - Launch Vehicle: Kosmos 3. Kosmos 11K65M 53721-257 FAILURE: First stage failed 84 seconds after launch. Intercosmos 14 Spacecraft: DS-U3-IK. Agency: RVSN. Measurements of the sun; used for Interkosmos launches. Payload included East European experiments to study solar UV, X-ray effects on upper atmosphere. Investigation of solar radiation and its effect on the atmosphere of the earth.

1976 July 27 - 12:00 GMT - Launch Vehicle: Kosmos 3. Kosmos 11K65M 53746-316 Intercosmos 16 Mass: 550 kg (1,210 lb). Spacecraft: DS-U3-IK. Agency: IKI. Perigee: 464 km (288 mi). Apogee: 517 km (321 mi). Inclination: 50.60 deg. Period: 94.40 min. Investigation of the ultraviolet and X-ray radiation of the Sun and the influence of such radiation on the structure of the Earth's upper atmosphere.