| Official name | IUS R/B(1) |
| Alternative name | IUS first stage (Titan IVB IUS) |
| Cospar ID | 2001-033C |
| Norad ID | 26882 |
| Launch date | 2001-08-06 |
| Launch site | AFETR |
| Launch vehicle | Titan-4(02)B IUS |
| RCS size | LARGE |
| Decay date | ON ORBIT |
| Period (min) | 582.69 |
| Inclination (deg) | 28.45 |
| Perigee (km) | 309 |
| Apogee (km) | 33153 |
| Eccentricity | 0.981531289223597 |
| Mean motion (revs. per day) | 2.47129691602739 |
| Semi-Major axis (km) | 23109.135 |
| Raan (deg) | 307.4433 |
| Arg of perigee (deg) | 139.5624 |
| Shape | Cyl |
| Mass (kg) | 1164 |
| Diameter (m) | 2.32 |
| Height (m) | 3.5 |
.png)
