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MARINER 4
Launch Details
| Launched | 27 November 1964 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 938 |
| COSPAR ID | 1964-077A |
| Observing |
Timeline
| 1964 Nov 28 | – | Launch from Cape Canaveral SLC-12 |
| 1964 Dec 5 | – | Midcourse maneuver |
| 1965 Jan 5 | – | Transmission speed reduced from 33.3 to 8.5 bits/second |
| 1965 Jul 14 | – | Begins planetary science study of Mars |
| 1965 Jul 15 | – | Closest approach to Mars |
| 1965 Oct 1 | – | Communication with spacecraft lost |
| 1967 Sep 15 | – | Contact with spacecraft restored |
| 1967 Dec 21 | – | Spacecraft decommissioned |
Launched alongside
ATLAS AGENA D R/B