A U.S. Air Force Thor-Delta rocket launched the Echo 1 mission on Friday, August 12, 1960 at 9:39 AM (UTC). The launch date was Friday, August 12, 1960 at 9:39 AM (UTC).

Delta 2 Stage 3

A-11 Canister half

Mylar piece?

A-11 Canister half

Thor DM-18A 270

Altair Fairing?

Delta 2

Possible Echo fragment?

Launch header name is optional. Most launches do not have a header name. Only use it when a launch has a name that is different from its individual missions, such as "Live and Let Fly" or "Transporter-15."

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Provider	U.S. Air Force
Vehicle	Thor-Delta
Location	SLC-17A Cape Canaveral SFS Florida, United States
All dates and times should be submitted in UTC timezone. Use Estimated Date if you don't know the official launch date and time; otherwise, use Window Opens/Closes and/or Planned T-0, which will override the Estimated Date.
— Estimated Date —
Date
— Window Opens —
Date
Time
Launch Date	Friday, August 12, 1960
Launch Time	9:39 AM (UTC)
Launch Time (Pad)
— Planned T-0 —
Date	Friday, August 12, 1960
Time	9:39 AM (UTC)
— Window Closes —
Date	Friday, August 12, 1960
Time	9:39 AM (UTC)
Result	Success
COSPAR ID	1960-009

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