| areo.info / MER / Opportunity / | Sol 1864 Sol 1863 Sol 1862 |
| Sol 1863 local noon on Opportunity landing site was 2009-04-21 09:09 UTC on Earth. | last modified: 2016-01-31 21:44 UTC |
| All Mars images derived from original data published by NASA and JPL on Marsrover Image Gallery and exploratorium.edu. | |