Satellites, space stations, and deep space probes.
| Label | Operator | Status | Orbit | Launch Date | Mission Type |
|---|---|---|---|---|---|
| Kosmos-620 Космос-620 | Russian Space Forces | retired | LEO | 12/19/1973 | Communications |
| Kosmos-621 Космос-621 | Russian Space Forces | retired | LEO | 12/19/1973 | Communications |
| Kosmos-622 Космос-622 | Russian Space Forces | retired |
| LEO |
| 12/19/1973 |
| Communications |
| Soyuz-13 Союз-13 | Central KB for Experimental Machine Building | retired | LEO | 12/18/1973 | Human Spaceflight |
| Kosmos-616 Космос-616 | TsKBEM Filial No. 3 | retired | LEO | 12/17/1973 | Earth Observation |
| AE-C | NASA Goddard Space Flight Center | retired | MEO | 12/16/1973 | Earth Observation |
| Kosmos-615 Космос-615 | Proto-Vozdhusnoy Oborony | retired | LEO | 12/13/1973 | Technology Demonstration |
| DSCS II F-3 | U.S. Air Force | retired | GEO | 12/13/1973 | Communications |
| DSCS II F-4 | U.S. Air Force | retired | GEO | 12/13/1973 | Communications |
| Kosmos-614 Космос-614 | ISS Reshetnev | retired | LEO | 12/4/1973 | Communications |
| Molniya-1 (1973-097A) Молния-1 | Russian Space Forces | retired | HEO | 11/30/1973 | Communications |
| Kosmos-613 Космос-613 | Central KB for Experimental Machine Building | retired | LEO | 11/30/1973 | Human Spaceflight |
| Kosmos-612 Космос-612 | Russian Space Forces | retired | LEO | 11/28/1973 | Earth Observation |
| Kosmos-611 Космос-611 | Proto-Vozdhusnoy Oborony | retired | LEO | 11/28/1973 | Technology Demonstration |
| Kosmos-610 Космос-610 | Glavnoye Razvedyvatelnoe Upravleniye | retired | LEO | 11/27/1973 | Signals Intelligence |
| Kosmos-609 Космос-609 | Russian Space Forces | retired | LEO | 11/21/1973 | Earth Observation |
| Kosmos-608 Космос-608 | Proto-Vozdhusnoy Oborony | retired | LEO | 11/20/1973 | Technology Demonstration |
| Skylab SL-4 | NASA Johnson Space Center | retired | LEO | 11/16/1973 | Human Spaceflight |
| Molniya-1 (1973-089A) Молния-1 | Russian Space Forces | retired | HEO | 11/14/1973 | Communications |
| OPS 6630 | U.S. National Reconnaissance Office (NRO) | retired | LEO | 11/10/1973 | Earth Observation |
| URSALA II | U.S. National Reconnaissance Office (NRO) | retired | LEO | 11/10/1973 | Signals Intelligence |
| Kosmos-607 Космос-607 | Russian Space Forces | retired | LEO | 11/10/1973 | Earth Observation |
| OPS 6630 P/L 2 | U.S. National Reconnaissance Office (NRO) | retired | LEO | 11/10/1973 | Signals Intelligence |
| NOAA 3 | National Oceanic and Atmospheric Administration (NOAA) | retired | LEO | 11/6/1973 | Earth Observation |
| Mariner 10 | NASA Jet Propulsion Laboratory | retired | interplanetary | 11/3/1973 | Science Exploration |
| Kosmos-606 Космос-606 | Proto-Vozdhusnoy Oborony | retired | HEO | 11/2/1973 | Missile Warning Tracking |
| Kosmos-605 Космос-605 | Insitute of Medical-Biological Problems | retired | LEO | 10/31/1973 | Science Exploration |
| NNS 30200-16 | U.S. Navy | retired | LEO | 10/30/1973 | Positioning Navigation Timing |
| Interkosmos-10 Интеркосмос-10 | Interkosmos | retired | LEO | 10/30/1973 | Science Exploration |
| Kosmos-604 Космос-604 | TsNII Kometa | retired | LEO | 10/29/1973 | Signals Intelligence |
| Kosmos-603 Космос-603 | Russian Space Forces | retired | LEO | 10/27/1973 | Earth Observation |
| IMP 8 | NASA Goddard Space Flight Center | retired | HEO | 10/26/1973 | Science Exploration |
| Kosmos-602 Космос-602 | Russian Space Forces | retired | LEO | 10/20/1973 | Earth Observation |
| Molniya-2 (1973-076A) Молния-2 | Russian Space Forces | retired | HEO | 10/19/1973 | Communications |
| Kosmos-601 Космос-601 | Proto-Vozdhusnoy Oborony | retired | LEO | 10/16/1973 | Technology Demonstration |
| Kosmos-600 Космос-600 | Russian Space Forces | retired | LEO | 10/16/1973 | Earth Observation |
| Kosmos-599 Космос-599 | Russian Space Forces | retired | LEO | 10/15/1973 | Earth Observation |
| Kosmos-598 Космос-598 | Russian Space Forces | retired | LEO | 10/10/1973 | Earth Observation |
| Kosmos-597 Космос-597 | Russian Space Forces | retired | LEO | 10/6/1973 | Earth Observation |
| Kosmos-596 Космос-596 | Russian Space Forces | retired | LEO | 10/3/1973 | Earth Observation |
| Kosmos-595 Космос-595 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-594 Космос-594 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-593 Космос-593 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-592 Космос-592 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-591 Космос-591 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-590 Космос-590 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-589 Космос-589 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| Kosmos-588 Космос-588 | Russian Space Forces | retired | LEO | 10/2/1973 | Communications |
| OPS 6275 | U.S. National Reconnaissance Office (NRO) | retired | LEO | 9/27/1973 | Earth Observation |
| Soyuz-12 Союз-12 | Central KB for Experimental Machine Building | retired | LEO | 9/27/1973 | Human Spaceflight |