![[AUTO] Juno II - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fjuno2520ii_image_20191201204701.jpeg&w=1600)
Army Ballistic Missile AgencyJuno IILaunch Complex 26B, Cape Canaveral SFS, FL, USA
S-45
Launched
February 25, 1961
Summary
Explorer S-45 launched on an Army Ballistic Missile Agency Juno II from Launch Complex 26B, Cape Canaveral SFS, FL, USA on February 25, 1961. The mission failed: Third stage failed to ignite. It was Army Ballistic Missile Agency's 10th launch, 1st this year and humanity's 101st orbital launch attempt. It was the 8th Juno II flight and the 1st this year. The payload was bound for High Earth Orbit (HEO).
- Result
- Third stage failed to ignite.
- Watch
- No webcast on record.
- Vehicle
- Juno II · Army Ballistic Missile Agency
- Booster
- No booster details on record.
- Mission
- Earth Science · High Earth Orbit (HEO)
- Milestone
- 8th Juno II flight · 1st this yearArmy Ballistic Missile Agency's 10th launch1st this yearhumanity's 101st orbital launch attempt8th orbital launch attempt this year
Flight preview
About this launch
Explorer S-45 was a NASA ionosphere beacon satellite meant to map the shape of the ionosphere from a highly elliptical orbit reaching about 181,000 km. The Juno II launch vehicle malfunctioned after second-stage separation and the upper stages failed to ignite, so the satellite never reached orbit.
Pad
Launch Complex 26B, Cape Canaveral SFS, FL, USA
4th launch from Launch Complex 26B, 1st this year · 54th from Cape Canaveral SFS, FL, USA
6 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
113 days after the previous launch from this pad
Questions
When did Explorer S-45 launch?
Explorer S-45 launched on February 25, 1961. The time is known to the hour, not the minute.
Why did Explorer S-45 fail?
Third stage failed to ignite.
Where can I watch Explorer S-45?
No webcast is on record for this launch.
What rocket launched Explorer S-45?
Juno II, flown by Army Ballistic Missile Agency. Juno II spec sheet
Where did Explorer S-45 launch from?
Launch Complex 26B, Cape Canaveral SFS, FL, USA.
What orbit was Explorer S-45 going to?
High Earth Orbit (HEO), a earth science mission.