USA-184
| Mission type | ELINT |
|---|---|
| Operator | National Reconnaissance Office |
| COSPAR ID | 2006-027A |
| SATCAT no. | 29249 |
| Start of mission | |
| Launch date | 28 June 2006, 03:33 UTC |
| Rocket | Delta IV-M+(4,2) D317 |
| Launch site | Vandenberg, SLC-6 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Molniya |
| Perigee altitude | 1,138 kilometres (707 mi) |
| Apogee altitude | 39,210 kilometres (24,360 mi) |
| Inclination | 63.2° |
USA-184, also known as NRO Launch 22 or NROL-22, is an American signals intelligence satellite, operated by the National Reconnaissance Office. Launched in 2006, it has been identified as the first in a new series of satellites which are replacing the earlier Trumpet spacecraft.