Deep Space Rendezvous
| Date | Spacecraft | Event | Remarks |
|---|---|---|---|
| 7 February | Cassini | 50th flyby of Titan | Closest approach: 960 kilometres (600 mi) |
| 12 February | Okina | Lunar impact | Farside of the Moon |
| 17 February | Dawn | Flyby of Mars | Gravity assist, closest approach 549 kilometres (341 mi) at 00:28 GMT |
| 1 March | Chang'e 1 | Lunar impact | Deorbited at 07:36 and impacted at 08:13 |
| 27 March | Cassini | 51st flyby of Titan | Closest approach: 960 kilometres (600 mi) |
| 4 April | Cassini | 52nd flyby of Titan | Closest approach: 4,150 kilometres (2,580 mi) |
| 20 April | Cassini | 53rd flyby of Titan | Closest approach: 3,600 kilometres (2,200 mi) |
| 5 May | Cassini | 54th flyby of Titan | Closest approach: 3,244 kilometres (2,016 mi) |
| 21 May | Cassini | 55th flyby of Titan | Closest approach: 965 kilometres (600 mi) |
| 6 June | Cassini | 56th flyby of Titan | Closest approach: 965 kilometres (600 mi) |
| 10 June | Kaguya | Lunar Impact | at 18:25 UTC, around Gill crater. |
| 22 June | Cassini | 57th flyby of Titan | Closest approach: 955 kilometres (593 mi) |
| 23 June | LRO | Selenocentric orbit insertion | Orbital insersion burn lasted from 09:47 to 10:26 UTC |
| 23 June | LCROSS/Centaur | Lunar flyby | Gravity assist to align for impact in October, closest approach: 3,200 kilometres (2,000 mi) at 10:30:33 UTC |
| 8 July | Cassini | 58th flyby of Titan | Closest approach: 965 kilometres (600 mi) |
| 24 July | Cassini | 59th flyby of Titan | Closest approach: 955 kilometres (593 mi) |
| 9 August | Cassini | 60th flyby of Titan | Closest approach: 970 kilometres (600 mi) |
| 25 August | Cassini | 61st flyby of Titan | Closest approach: 970 kilometres (600 mi) |
| 17 September | Artemis P1 | Lunar flyby | Closest approach: 43,875 kilometres (27,263 mi) at 00:49 UTC |
| 30 September | MESSENGER | 3rd flyby of Mercury | Gravity assist, closest approach: 229 kilometres (142 mi) |
| 9 October | AV-020 Centaur | Lunar impact | 2,000-kilogram (4,400 lb) upper stage of the Atlas V rocket used to launch LRO and LCROSS. Impacted Cabeus crater at Lunar South Pole. Impact occurred at 11:31 UTC, and was observed by LCROSS. |
| LCROSS (S-S/C) | Lunar impact | 700-kilogram (1,500 lb) shepherding spacecraft. Detached from Centaur at 01:50 UTC, and impacted same crater at 11:37. | |
| 12 October | Cassini | 62nd flyby of Titan | Closest approach: 1,300 kilometres (810 mi) |
| 2 November | Cassini | 7th flyby of Enceladus | Closest approach: 103 kilometres (64 mi) |
| 13 November | Rosetta | 3rd flyby of Earth | Gravity assist |
| 21 November | Cassini | 8th flyby of Enceladus | Closest approach: 1,607 kilometres (999 mi) |
| 8 December | Artemis P1 | Lunar flyby | Closest approach: 16,101 kilometres (10,005 mi) at 01:25 UTC |
| 12 December | Cassini | 63rd flyby of Titan | Closest approach: 4,850 kilometres (3,010 mi) |
| 28 December | Cassini | 64th flyby of Titan | Closest approach: 955 kilometres (593 mi) |
- Distant, non-targeted flybys of Dione, Mimas, Rhea, Tethys and Titan by Cassini occurred throughout the year.
Read more about this topic: 2009 In Spaceflight
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