Atlas V 521 Launch History
Every orbital and deep-space launch attempt by the Atlas V 521, year by year, drawn from the GCAT launch catalog. It is one of the variants covered on the Atlas family page.
Data current as of 2026-07-21.
Atlas V 521 made 2 orbital and deep-space launch attempts between 2003 and 2004. It is part of the Atlas family. All 2 flights succeeded. The busiest year was 2003, with 1 flight. The most recent flight in the catalog was in 2004.
2
Launch attempts
2
Successes
0
Failures
100%
Success rate
Launches per year
Successes
Failures
Each bar links to that year's full chronology.
Year by year
Launch sites used
Sites the Atlas V 521 launched from, across every launch in the catalog.
| Site | Country | Launches | Successes | Failures |
|---|---|---|---|---|
| CC | United States | 2 | 2 | 0 |
Launch chronology
Every Atlas V 521 launch in the catalog, newest first.