launched from USA

Helios-2

Success
JAN 15197605:34:00 UTC

Probe targeted to examine the Sun; achieved highest velocity of any man-made object, 252,792 km/h (157,078 mph) relative to the Sun.

launched from LC-41 Canaveral

aboard Titan III(23)E/Star-37E 23E-5 into Heliocentric

Payload

Helios-2