| Official name | USA 40 R/B |
| Alternative name | AKM (USA 40 AKM) |
| Cospar ID | 1989-061D |
| Norad ID | 20344 |
| Launch date | 1989-08-08 |
| Launch site | AFETR |
| Launch vehicle | Shuttle |
| RCS size | LARGE |
| Decay date | ON ORBIT |
| Period (min) | 182.79 |
| Inclination (deg) | 57.03 |
| Perigee (km) | 493 |
| Apogee (km) | 8089 |
| Eccentricity | 0.885108366348171 |
| Mean motion (revs. per day) | 7.87789266371246 |
| Semi-Major axis (km) | 10669.135 |
| Raan (deg) | 17.8261 |
| Arg of perigee (deg) | 291.6972 |
| Shape | Cyl + Cone |
| Mass (kg) | 3600 |
| Diameter (m) | 1.4 |
| Height (m) | 2.5 |
| Span (m^2) | 2.5 |
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