Editing Mariner 4 (section)

===First image hand drawn===
[[File:Mariner 4 tape recorder.jpg|thumb|upright|right|Mariner 4 tape recorder]]
The on-board tape recorder used on Mariner 4 was a spare, not originally intended for the Mariner 4 flight. Between the failure of Mariner 3, the fact that the Mariner 4 recorder was a spare, and some error readings suggesting an issue with the tape recorder, it was determined that the team would test the camera function definitively. This eventually led to the first digital image being [[painting|painted]]. While waiting for the image data to be computer processed, the team used a [[pastel]] set from an art supply store to hand-color ([[paint-by-numbers]] style) a numerical printout of the raw [[pixel]]s. The resulting image provided early verification that the camera was functioning. The hand-drawn image compared favorably with the final, computer-processed one.<ref name=DanGoods/>
<gallery mode="packed" heights="115px">
Image:First TV Image of Mars.jpg|The first digital image from Mars hand-colored like a paint-by-numbers picture
Image:M01setSx3.jpg | Processed first digital image from Mars
</gallery>