TITAN 3E CENTAUR R/B(2)
| Launched | 19 August 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 10273 |
| COSPAR ID | 1977-076C |
| Observing |
Timeline
| 1977 Aug 20 | – | Launch from Cape Canaveral SLC-41 |
| 1979 Jul 9 | – | Flyby of Jupiter (closest approach) |
| 1981 Aug 26 | – | Flyby of Saturn (closest approach) |
| 1986 Jan 24 | – | Flyby of Uranus (closest approach) |
| 1989 Aug 25 | – | Flyby of Neptune (closest approach) |
| 2006 Nov 29 | – | Damage to magnetometer cause by incorrectly decoded command, which turned the heater on |
| 2007 Aug 30 | – | Spacecraft entered the Sun's heliosheath |
| 2018 Nov 5 | – | Spacecraft entered interstellar space (estimated date) |
| 2019 Feb 25 | – | Spacecraft exceeds 100 AU from the Sun - the third spacecraft to do so after Pioneer 10 and Voyager 1 |