Name: Explorer 11 — launch
Start: 1961-04-27
Location: Cape Canaveral Air Station, Florida

Launch code: OS. Source references: MTP-LOD-OIR-61-13.1; -.

Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records. (CC BY 4.0)

1961-02-25 NASA S-45 — launch Shares a spacecraft, person or other linked entity
1961-05-24 NASA S-45A — launch Shares a spacecraft, person or other linked entity
1960-03-23 NASA S-46 — launch Shares a spacecraft, person or other linked entity
1961-11-18 Ranger 2 — launch Same organization: NASA Marshall Space Flight Center
1961-08-23 Ranger 1 — launch Same organization: NASA Marshall Space Flight Center
1962-08-27 Mariner 2 — launch Same organization: NASA Marshall Space Flight Center