United States Air ForceThor DM-21 AblestarSpace Launch Complex 17B, Cape Canaveral SFS, FL, USA
Transit 2A
Launched
June 22, 1960
Summary
Transit 2A launched on an United States Air Force Thor DM-21 Ablestar from Space Launch Complex 17B, Cape Canaveral SFS, FL, USA on June 22, 1960. It was United States Air Force's 21st launch, 10th this year and humanity's 68th orbital launch attempt. It was the 2nd Thor DM-21 Ablestar flight. The payload was bound for Polar Orbit (PO).
- Watch
- No webcast on record.
- Vehicle
- Thor DM-21 Ablestar · United States Air Force
- Booster
- No booster details on record.
- Mission
- Navigation · Polar Orbit (PO)
- Milestone
- 2nd Thor DM-21 Ablestar flightUnited States Air Force's 21st launch10th this yearhumanity's 68th orbital launch attempt14th orbital launch attempt this year
Flight preview
About this launch
The Transit system was the first satellite navigation system to be used operationally. The system was primarily used by the U.S. Navy to provide accurate location information to its Polaris ballistic missile submarines, and it was also used as a navigation system by the Navy's surface ships, as well as for hydrographic survey and geodetic surveying.
Pad

Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
2nd launch from Space Launch Complex 17B, 2nd this year · 38th from Cape Canaveral SFS, FL, USA
132 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
69 days after the previous launch from this pad
Questions
When did Transit 2A launch?
Transit 2A launched on June 22, 1960. The time is known to the hour, not the minute.
Where can I watch Transit 2A?
No webcast is on record for this launch.
What rocket launched Transit 2A?
Thor DM-21 Ablestar, flown by United States Air Force. Thor DM-21 Ablestar spec sheet
Where did Transit 2A launch from?
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA.
What orbit was Transit 2A going to?
Polar Orbit (PO), a navigation mission.
![[AUTO] Thor DM-21 Ablestar - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fthor2520dm-212520ablestar_image_20191201205131.jpg&w=1600)