TITAN 3E CENTAUR R/B(2)
| Launched | 4 September 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 10323 |
| COSPAR ID | 1977-084C |
| Observing |
Timeline
| 1977 Sep 5 | – | Launch from Cape Canaveral SLC-41 |
| 1979 Mar 5 | – | Flyby of Jupiter (closest approach) |
| 1980 Nov 12 | – | Flyby of Saturn (closest approach) |
| 1980 Nov 12 | – | Flyby of Titan |
| 1990 Feb 14 | – | Pale Blue Dot photograph taken |
| 1998 Feb 17 | – | Became the most distant spacecraft from Earth, overtaking Pioneer 10 |
| 2004 Dec 15 | – | Spacecraft entered the Sun's heliosheath (estimated date) |
| 2010 Dec 13 | – | Spacecraft confirmed to have passed the outer boundary of the solar wind |
| 2011 Dec 1 | – | Detection of the first Lyman-alpha radiation originating from the Milky Way galaxy |
| 2012 Aug 25 | – | Spacecraft crossed the Sun's heliopause (estimated date) |
| 2013 Mar 15 | – | Spacecraft entered interstellar space (estimated date) |