| Date |
Event |
| 1977-08-20 |
Spacecraft launched at 14:29:00 UTC. |
| 1977-12-10 |
Entered asteroid belt. |
| 1977-12-19 |
Voyager 1 overtakes Voyager 2. (see diagram) |
| 1978-06- |
Primary radio receiver fails. Remainder of mission flown using backup. |
| 1978-10-21 |
Exited asteroid belt |
| 1979-04-25 |
Start Jupiter observation phase
| Time |
Event |
| 1979-07-08 |
Encounter with Jovian system. |
| 12:21:00 |
Callisto flyby at 214,930 km. |
| 1979-07-09 |
|
| 07:14:00 |
Ganymede flyby at 62,130 km. |
| 17:53:00 |
Europa flyby at 205,720 km. |
| 20:01:00 |
Amalthea flyby at 558,370 km. |
| 22:29:00 |
Jupiter closest approach at 721,670 km from the center of mass. |
| 23:17:00 |
Io flyby at 1,129,900 km. |
| 1979-08-05 |
Phase Stop |
|
| 1981-06-05 |
Start Saturn observation phase.
| Time |
Event |
| 1981-08-22 |
Encounter with Saturnian system. |
| 01:26:57 |
Iapetus flyby at 908,680 km. |
| 1981-08-25 |
|
| 01:25:26 |
Hyperion flyby at 431,370 km. |
| 09:37:46 |
Titan flyby at 666,190 km. |
| 22:57:33 |
Helene flyby at 314,090 km. |
| 1981-08-26 |
|
| 01:04:32 |
Dione flyby at 502,310 km. |
| 02:22:17 |
Calypso flyby at 151,590 km. |
| 02:24:26 |
Mimas flyby at 309,930 km. |
| 03:19:18 |
Pandora flyby at 107,000 km. |
| 03:24:05 |
Saturn closest approach at 161,000 km from the center of mass. |
| 03:33:02 |
Atlas 287,000 km. |
| 03:45:16 |
Enceladus flyby at 87,010 km. |
| 03:50:04 |
Janus at 223,000 km. |
| 04:05:56 |
Epimetheus at 147,000 km. |
| 06:02:47 |
Telesto at 270,000 km. |
| 06:12:30 |
Tethys flyby at 93,010 km. |
| 06:28:48 |
Rhea flyby at 645,260 km. |
| 1981-09-04 |
|
| 01:22:34 |
Phoebe flyby at 2,075,640 km. |
| 1981-09-25 |
Phase Stop |
|
| 1985-11-04 |
Start Uranus observation phase.
| Time |
Event |
| 1986-01-24 |
Encounter with Uranian system. |
| 16:50:00 |
Miranda flyby at 29,000 km. |
| 17:25:00 |
Ariel flyby at 127,000 km. |
| 17:25:00 |
Umbriel flyby at 325,000 km. |
| 17:25:00 |
Titania flyby at 365,200 km. |
| 17:25:00 |
Oberon flyby at 470,600 km. |
| 17:59:47 |
Uranus closest approach at 107,000 km from the center of mass. |
| 1986-02-25 |
Phase Stop |
|
| 1989-06-05 |
Start Neptune observation phase.
| Time |
Event |
| 1989-08-25 |
Encounter with Neptunian system. |
| 03:56:36 |
Neptune closest approach at 29,240 km. |
| 04:51:00 |
Larissa flyby at 60,180 km. |
| 05:29:00 |
Proteus flyby at 97,860 km. |
| 09:23:00 |
Triton flyby at 39,800 km. |
| 1989-10-02 |
Phase Stop |
|
| 1989-10-02 |
Begin Voyager Interstellar Mission. |
| Interstellar phase |
| 1990-02-14 |
Final images of the Voyager Program acquired by Voyager 1 to create the Solar System "Family Portrait". |
| 1997-08-20 |
20 years of continuous flight and operation at 14:29:00 UTC. |
| 1998-11-13 |
Terminate scan platform and UV observations. |
| 2007-08-20 |
30 years of continuous flight and operation at 14:29:00 UTC. |
| 2007-09-06 |
Terminate data tape recorder operations. |
| 2008-02-22 |
Terminate planetary radio astronomy experiment operations. |
| 2011-11-07 |
Switch to backup thrusters to conserve power |