United States Air ForceThor-DeltaSpace Launch Complex 17A, Cape Canaveral SFS, FL, USA
Explorer 10
Launched
March 25, 1961
Image: NASA
Summary
Explorer 10 launched on an United States Air Force Thor-Delta from Space Launch Complex 17A, Cape Canaveral SFS, FL, USA on March 25, 1961. It was United States Air Force's 43rd launch, 5th this year and humanity's 104th orbital launch attempt. It was the 1st Thor-Delta flight. The payload was bound for High Earth Orbit (HEO).
- Watch
- No webcast on record.
- Vehicle
- Thor-Delta · United States Air Force
- Booster
- No booster details on record.
- Mission
- Heliophysics · High Earth Orbit (HEO)
- Milestone
- 1st Thor-Delta flightUnited States Air Force's 43rd launch5th this yearhumanity's 104th orbital launch attempt11th orbital launch attempt this year
Flight preview
About this launch
Explorer 10 was a NASA magnetometer and plasma probe sent into a highly elliptical orbit reaching about 180,000 km to study the magnetosphere and cislunar space. It operated for about 52 hours on batteries and was the first satellite to measure the shock wave from a solar flare.
Pad

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
11th launch from Space Launch Complex 17A, 1st this year · 56th from Cape Canaveral SFS, FL, USA
145 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
122 days after the previous launch from this pad
Questions
When did Explorer 10 launch?
Explorer 10 launched on March 25, 1961. The time is known to the hour, not the minute.
Where can I watch Explorer 10?
No webcast is on record for this launch.
What rocket launched Explorer 10?
Thor-Delta, flown by United States Air Force. Thor-Delta spec sheet
Where did Explorer 10 launch from?
Space Launch Complex 17A, Cape Canaveral SFS, FL, USA.
What orbit was Explorer 10 going to?
High Earth Orbit (HEO), a heliophysics mission.
