Satellites, space stations, and deep space probes.
| Label | Operator | Status | Orbit | Launch Date | Mission Type |
|---|---|---|---|---|---|
| NOTS 2 | Naval Ordnance Test Station | retired | suborbital | 8/12/1958 | Technology Demonstration |
| Explorer IV | U.S. Army | retired | LEO | 7/26/1958 | Science Exploration |
| NOTS 1 | Naval Ordnance Test Station | retired |
| suborbital |
| 7/25/1958 |
| Technology Demonstration |
| Vanguard (1958-F06) | U.S. Naval Research Lab | retired | suborbital | 6/26/1958 | Science Exploration |
| Vanguard (1958-F05) | U.S. Naval Research Lab | retired | suborbital | 5/28/1958 | Science Exploration |
| 3-y Sovetskiy ISZ 3-я Советский ИСЗ | RSC Energia | retired | LEO | 5/15/1958 | Science Exploration |
| Vanguard (1958-F04) | U.S. Naval Research Lab | retired | suborbital | 4/29/1958 | Science Exploration |
| ISZ [ИСЗ] | NII-88 (Nauchno-Issledovatel'niy Institut 88) | retired | suborbital | 4/27/1958 | Science Exploration |
| Explorer III | U.S. Army | retired | LEO | 3/26/1958 | Science Exploration |
| Vanguard I | U.S. Naval Research Lab | retired | MEO | 3/17/1958 | Technology Demonstration |
| Explorer II | U.S. Army | retired | suborbital | 3/5/1958 | Science Exploration |
| Vanguard (1958-F01) | U.S. Naval Research Lab | retired | suborbital | 2/5/1958 | Technology Demonstration |
| Explorer I | U.S. Army | retired | LEO | 2/1/1958 | Science Exploration |
| Vanguard (1957-F01) | U.S. Naval Research Lab | retired | suborbital | 12/6/1957 | Technology Demonstration |
| 2-y ISZ Простейший Спутник 2 | RSC Energia | retired | LEO | 11/3/1957 | Science Exploration |
| 1-y ISZ Простейший Спутник 1 | RSC Energia | retired | LEO | 10/4/1957 | Technology Demonstration |