Satellites, space stations, and deep space probes.
| Label | Operator | Status | Orbit | Launch Date | |
|---|---|---|---|---|---|
| NOTS 5 | - | retired | - | 8/26/1958 | 0 |
| NOTS 4 | - | retired | - | 8/25/1958 | 0 |
| Explorer V | U.S. Army | retired | - | 8/24/1958 | 0 |
| NOTS 3 | - | retired | - | 8/22/1958 | 0 |
| Pioneer Lunar Probe | U.S. Defense Advanced Research Projects Agency (DARPA) | retired | - | 8/17/1958 | 0 |
| NOTS 2 | - | retired | - | 8/12/1958 | 0 |
| Explorer IV | U.S. Army | retired | LEO | 7/26/1958 | 0 |
| NOTS 1 | - | retired | - | 7/25/1958 | 0 |
| Vanguard (1958-F06) | U.S. Naval Research Lab | retired | - | 6/26/1958 | 0 |
| Vanguard (1958-F05) | U.S. Naval Research Lab | retired | - | 5/28/1958 | 0 |
| 3-y Sovetskiy ISZ | - | retired | LEO | 5/15/1958 | 0 |
| Vanguard (1958-F04) | U.S. Naval Research Lab | retired | - | 4/29/1958 | 0 |
| ISZ | - | retired | - | 4/27/1958 | 0 |
| Explorer III | U.S. Army | retired | LEO | 3/26/1958 | 0 |
| Vanguard I | U.S. Naval Research Lab | retired | MEO | 3/17/1958 | 0 |
| Explorer II | U.S. Army | retired | - | 3/5/1958 | 0 |
| Vanguard (1958-F01) | U.S. Naval Research Lab | retired | - | 2/5/1958 | 0 |
| Explorer I | U.S. Army | retired | LEO | 2/1/1958 | 0 |
| Vanguard (1957-F01) | U.S. Naval Research Lab | retired | - | 12/6/1957 | 0 |
| 2-y ISZ | - | retired | LEO | 11/3/1957 | 0 |
| 1-y ISZ | - | retired | - | 10/4/1957 | 0 |