Gravity Probe B
Gravity Probe B launched on 20 April 2004, 16:57 UTC on a Delta II from Vandenberg SFB, CA, USA. The recorded outcome is Success. Payloads: Gravity Probe B.
| Name | Gravity Probe B |
|---|---|
| Launch time (UTC) | 20 April 2004, 16:57 UTC |
| Vehicle | Delta II |
| Launch site | Vandenberg SFB, CA, USA |
| Company | United States Air Force |
| Outcome | Success |
| Payloads | Gravity Probe B |
| Orbit | Low Earth Orbit |
Questions
- When did Gravity Probe B launch?
- Gravity Probe B launched on 20 April 2004, 16:57 UTC.
- What rocket launched Gravity Probe B?
- Gravity Probe B launched on a Delta II.
- Where did Gravity Probe B launch from?
- Gravity Probe B launched from Vandenberg SFB, CA, USA.
- What was the outcome of Gravity Probe B?
- The recorded outcome is Success.
Sources: Jonathan's Space Report (GCAT), CC-BY; CelesTrak; Launch Library 2.
Last updated: 2026-10-20 UTC.