| Name of Satellite, Alternate Names | Improved Trumpet 5 (NROL-28, National Reconnaissance Office Launch-28, SBIRS HEO-2, Twins 2, USA 200) |
| Country of Operator/Owner | USA |
| Operator/Owner | National Reconnaissance Office (NRO) |
| Users | Military |
| Purpose | Electronic Surveillance |
| Class of Orbit | Elliptical |
| Type of Orbit | Molniya |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 1112 |
| Apogee (km) | 37580 |
| Eccentricity | 0.709052729818012 |
| Inclination (degrees) | 63.56 |
| Period (minutes) | 684 |
| Launch Mass (kg.) | 4200 |
| Dry Mass (kg.) | |
| Power (watts) | |
| Date of Launch | 13-03-2008 |
| Expected Lifetime | |
| Contractor | National Reconnaissance Laboratory |
| Country of Contractor | USA |
| Launch Site | Vandenberg AFB |
| Launch Vehicle | Atlas 5 |
| COSPAR Number | 2008-010A |
| NORAD Number | 32706 |
| Comments | Reported to be carrying signals intelligence and early warning payloads. |