| Date (d,m,y) | Contributor | Objective |
|---|---|---|
| 22 - 1 - 2006 | Urrutia and Ribeiro | (0, 299903) |
| 21 - 6 - 2007 | Araujo, Urrutia, and Ribeiro | (0, 299134) |
| Date (d,m,y) | Contributor | Objective |
|---|---|---|
| 15 - 7 - 2006 | Melo, Ribeiro, and Urrutia | (0, 276395) |
| 3 - 4 - 2008 | Cheung | (0, 276519) |