Extended Duration Orbiter Use Use

| EDO_Flight | Shuttle | Mission | Launch_Date | Duration | Primary_Payloads |
|---|---|---|---|---|---|
| 6 | Columbia | STS-73 | October 20, 1995 | 15 days, 21 hours, 53 minutes, 16 seconds | United States Microgravity Laboratory-2 |
| 8 | Columbia | STS-78 | June 20, 1996 | 16 days, 21 hours, 48 minutes, 30 seconds | Life and Microgravity Spacelab |
| 9 | Columbia | STS-80 | November 19, 1996 | 17 days, 15 hours, 53 minutes, 18 seconds | Wake Shield Facility ORFEUS-SPAS II |
| 12 | Columbia | STS-87 | November 19, 1997 | 15 days, 16 hours, 35 minutes, 1 second | United States Microgravity Payload-4 SPARTAN-201 |