| areo.info / MER / Opportunity / | Sol 4229 Sol 4228 Sol 4227 |
| Sol 4228 local noon on Opportunity landing site was 2015-12-16 09:33 UTC on Earth. | last modified: 2016-01-31 21:49 UTC |
| All Mars images derived from original data published by NASA and JPL on Marsrover Image Gallery and exploratorium.edu. | |