 | Thistimeline of spaceflight mayrequirecleanup to ensure consistency with other timeline of spaceflight articles. SeeWikipedia:WikiProject Spaceflight/Timeline of spaceflight working group for guidelines on how to improve the article. Details Concerns have been raised that:
|  |
 Launch ofVoyager 2 on aTitan IIIE | |
| Orbital launches | |
|---|---|
| First | 6 January |
| Last | 27 December |
| Total | 130 |
| Catalogued | 124 |
| Rockets | |
| Maiden flights | Mu-3H Tsyklon-3 |
| Retirements | Kosmos-2I Titan IIIE |
| Crewed flights | |
| Orbital | 3 |
| Total travellers | 6 |
Spaceflight in 1977 included some important events such as the roll out of theSpace Shuttle orbiter,Voyager 1 and Voyager space probes were launched. NASA received the Space Shuttle orbiter later named Enterprise, on 14 January. This unpowered sub-orbital space plane was launched off the top of a modified 747 and was flown uncrewed until 13 August until a human crew landed theEnterprise for the first time.
In August and September, the twoVoyager spacecraft to theouter planets were launched.Voyager 2, launched on 20 August, went on to fly pastJupiter,Saturn,Uranus andNeptune.Voyager 1, which was launched on 5 September, flew past Jupiter and Saturn, with a planned flyby ofPluto being cancelled in favour of a closer flyby ofTitan.[1]
| Date and time (UTC) | Rocket | Flight number | Launch site | LSP | |||
|---|---|---|---|---|---|---|---|
| Payload (⚀ =CubeSat) | Operator | Orbit | Function | Decay (UTC) | Outcome | ||
| Remarks | |||||||
| 19 February 05:15 |  M-3H | Kagoshima Space Center LP-M | ISAS | ||||
| MS-T3 (Tansei 3) | ISAS | Highly elliptical orbit | Technology test | In orbit | Successful | ||
| First flight of M-3H | |||||||
| 16 June 10:51:00 |  Delta 2914 | Cape CanaveralLC-17B | | ||||
| GOES 2 | NOAA | Current:Graveyard Operational:Geostationary | Weather | In orbit | Successful | ||
| Retired on 5 May 2001 and moved to a graveyard orbit | |||||||
| 20 August 14:29:44 | Titan IIIE | Cape CanaveralLC-41 | | ||||
| Voyager 2 | NASA | Heliocentric toGalactocentric | Planetary | In orbit | Successful Operational | ||
| Spacecraft flew pastJupiter,Saturn,Uranus andNeptune, first spacecraft to visit Uranus and Neptune | |||||||
| 5 September 12:56:01 | Titan IIIE | Cape CanaveralLC-41 | | ||||
| Voyager 1 | NASA | Heliocentric to Galactocentric | Planetary | In orbit | Successful Operational | ||
| Final flight of Titan IIIE, spacecraft flew past Jupiter and Saturn | |||||||
| Date | Spacecraft | Event | Remarks |
|---|---|---|---|
| 20 February | Viking Orbiter 1 | Flyby ofPhobos | Closest approach: 89 kilometres (55 mi) |
| October | Viking Orbiter 2 | Flyby ofDeimos |
| Start date/time | Duration | End time | Spacecraft | Crew | Remarks |
|---|---|---|---|---|---|
| 19 December 21:36 | 1 hour 28 minutes | 23:04 | Salyut 6 PE-1 |  Georgi Grechko (full)Yuri Romanenko (stand-up) | First Russian EVA in over 8 years and the first use of theOrlan-D spacesuit.[2] Grechko inspected the front docking port for damage from the failedSoyuz 25 docking and found no damage, while Romanenko assisted from the open hatch. |
