Curiosity Right Mastcam (M-100)

Sol 64 00:01 Site 5/0104 0064MR0344000000E1_DXXX
Surface Sampling System assessment of portioner [observations]
Jan 1, 2000 at 11:58:56 AM UTC (approximate)
Credit: NASA / JPL-Caltech / Malin Space Science Systems

Image Source