| Official name | BLACK ARROW R/B |
| Alternative name | BLACK ARROW-3 (Black Arrow) |
| Cospar ID | 1971-093B |
| Norad ID | 5581 |
| Launch date | 1971-10-28 |
| Launch site | WOMRA |
| Launch vehicle | Black Arrow |
| RCS size | MEDIUM |
| Decay date | ON ORBIT |
| Period (min) | 102.91 |
| Inclination (deg) | 82.04 |
| Perigee (km) | 525 |
| Apogee (km) | 1268 |
| Eccentricity | 0.414389291689905 |
| Mean motion (revs. per day) | 13.9928092508017 |
| Semi-Major axis (km) | 7274.635 |
| Raan (deg) | 304.7983 |
| Arg of perigee (deg) | 12.3824 |
| Shape | Cyl + Cone |
| Mass (kg) | 46.58 |
| Diameter (m) | 0.7 |
| Height (m) | 1.36 |
| Span (m^2) | 1.36 |
