1964 in spaceflight
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First11 January
Last21 December
Total101
Successes83
 | |
| Orbital launches | |
|---|---|
| First | 11 January |
| Last | 21 December |
| Total | 101 |
| Successes | 83 |
| Failures | 15 |
| Partial failures | 3 |
| Catalogued | 87 |
| National firsts | |
| Satellite |  Italy |
| Rockets | |
| Maiden flights | Atlas SLV-3 Agena-D Atlas LV-3C Centaur-C Delta D Kosmos-1 63S3 Molniya-M 8K78M Titan II GLV Titan IIIA Vostok-2M 8A92M |
| Retirements | Delta B Scout X-3 Polyot 11A59 Vostok-K 8K72K |
| Crewed flights | |
| Orbital | 1 |
| Total travellers | 3 |
Orbital and Suborbital launches
Deep Space Rendezvous
| Date (UTC) | Spacecraft | Event | Remarks |
|---|---|---|---|
| 2 February | Ranger 6 | Lunar impact | Impacted Mare Tranquillitatis at 09:24:32, failed to return images[1] |
| 14 July | Zond 1 | Flyby of Venus | Closest approach: 100,000 kilometres (62,000 mi), communications system failed before flyby |
| 31 July | Ranger 7 | Lunar impact | Impacted Mare Nubium at 13:25:49, returned 4,308 images[2] |
Orbital launch statistics
By country
| Country | Launches | Successes | Failures | Partial failures | |
|---|---|---|---|---|---|
 Soviet Union |
36 | 29 | 7 | 0 | |
 United States |
64 | 53 | 8 | 3 | |
| World | 100 | 82 | 15 | 3 | |
By rocket
By orbit
| Orbital regime | Launches | Achieved | Not Achieved | Accidentally Achieved |
Remarks |
|---|---|---|---|---|---|
| Low Earth | 77 | 68 | 8 | 2 | |
| Medium Earth | 4 | 3 | 1 | 0 | |
| High Earth | 11 | 8 | 3 | 0 | Including Highly elliptical orbits |
| Geosynchronous/transfer | 2 | 1 | 1 | 0 | |
| Heliocentric | 6 | 4 | 2 | 0 |
