United States Air ForceThor DM-21 AblestarSpace Launch Complex 2E, Vandenberg SFB, CA, USA
Transit-O 3
Launched
March 11, 1965
Summary
Transit-O 3 launched on an United States Air Force Thor DM-21 Ablestar from Space Launch Complex 2E, Vandenberg SFB, CA, USA on March 11, 1965. It was United States Air Force's 244th launch, 13th this year and humanity's 414th orbital launch attempt. It was the 17th Thor DM-21 Ablestar flight and the 1st this year. The payload was bound for Polar Orbit (PO). 8 objects from this launch are catalogued, 2 of them payloads.
- 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
- 17th Thor DM-21 Ablestar flight · 1st this yearUnited States Air Force's 244th launch13th this yearhumanity's 414th orbital launch attempt21st orbital launch attempt this year
Flight preview
Catalogued objects
8 catalogued: 2 payloads, 1 rocket stage, 5 debris; none still in orbit
- EGRS II · NORAD 1250 · re-entered February 26, 1968
- NNS 30030 · NORAD 1303 · re-entered June 14, 1965
Ablestar 018 · re-entered September 4, 1967
Data from J. McDowell, planet4589.org
About this launch
The Transit-O series of satellites that closely followed the design of Transit 5C-1 were also called “Oscars” (Oscar is the phonetic alphabet for “O”, i. e., operational). They were also called NNS (Navy Navigation Satellite) or shortened NavSat.
Pad

Space Launch Complex 2E, Vandenberg SFB, CA, USA
21st launch from Space Launch Complex 2E, 1st this year · 166th from Vandenberg SFB, CA, USA
47 launches from this pad · 919 from Vandenberg SFB, CA, USA
79 days after the previous launch from this pad
Questions
When did Transit-O 3 launch?
Transit-O 3 launched on March 11, 1965. The time is known to the hour, not the minute.
Where can I watch Transit-O 3?
No webcast is on record for this launch.
What rocket launched Transit-O 3?
Thor DM-21 Ablestar, flown by United States Air Force. Thor DM-21 Ablestar spec sheet
Where did Transit-O 3 launch from?
Space Launch Complex 2E, Vandenberg SFB, CA, USA.
What orbit was Transit-O 3 going to?
Polar Orbit (PO), a navigation mission.
How many satellites did Transit-O 3 launch?
2 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).
![[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)