AS-104
| Launch of Saturn AS-104 | |
| Mission type | Spacecraft aerodynamics; micrometeoroid investigation | 
|---|---|
| Operator | NASA | 
| COSPAR ID | 1965-039B | 
| SATCAT no. | 1385 | 
| Mission duration | 8,810 days | 
| Distance travelled | 3,282,050,195 kilometers (2.039371443×109 mi) | 
| Orbits completed | ~79,790 | 
| Spacecraft properties | |
| Spacecraft | Apollo BP-26 Pegasus 2 | 
| Launch mass | 1,451.5 kilograms (3,200 lb) | 
| Start of mission | |
| Launch date | May 25, 1965, 07:35:01 UTC | 
| Rocket | Saturn I SA-8 | 
| Launch site | Cape Kennedy LC-37B | 
| End of mission | |
| Decay date | July 8, 1989 | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | Low Earth orbit | 
| Perigee altitude | 511 kilometers (318 mi) | 
| Apogee altitude | 739 kilometers (459 mi) | 
| Inclination | 31.7 degrees | 
| Period | 97.2 minutes | 
| Epoch | 4 July 1965 | 
AS-104 was the fourth orbital test of a boilerplate Apollo spacecraft, and the second flight of the Pegasus micrometeoroid detection satellite. It was launched by SA-8, the ninth Saturn I carrier rocket.