Name: Transit 4A/GRAB — launch
Start: 1961-06-29
Location: Cape Canaveral Air Station, Florida

Launch code: OS. Source references: NROC-HIST; Wire.

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)

1961-11-15 Transit 4B — launch Shares a spacecraft, person or other linked entity
1962-10-31 ANNA 1B — launch Shares a spacecraft, person or other linked entity
1962-01-24 NRL Composite 1/GRAB — launch Shares a spacecraft, person or other linked entity
1961-09-17 Discoverer 31 — launch Same organization: US Air Force Space Systems Division
1961-10-21 Midas 4 — launch Same organization: US Air Force Space Systems Division
1961-11-05 Discoverer 34 — launch Same organization: US Air Force Space Systems Division