USA-315
| Names | SBIRS GEO-5 Space-Based Infrared System GEOstationary-5 |
|---|---|
| Mission type | Infrared early warning IRINT |
| Operator | United States Air Force / United States Space Force |
| COSPAR ID | 2021-042A |
| SATCAT no. | 48618 |
| Website | https://www.spaceforce.mil/ |
| Mission duration | 12 years (planned) |
| Spacecraft properties | |
| Spacecraft type | SBIRS GEO |
| Bus | LM2100 |
| Manufacturer | Lockheed Martin Space |
| Launch mass | 4,500 kg (9,900 lb) |
| Start of mission | |
| Launch date | 18 May 2021 |
| Launch site | Air Force Eastern Test Range, Florida, United States |
| Orbital parameters | |
| Regime | Geostationary orbit |
| Instruments | |
| 2 SBIRS infrared sensors | |
USA-315, also known as SBIRS GEO-5, is a military satellite developed as a part of the Space-Based Infrared System. The satellite aims to increase the capabilities of the United States Department of Defense in terms of missile defense and military intelligence.