Japan's First Lunar Mission
Hiten carried an optical navigation camera called the Optical Navigation System (ONS). The ONS consisted of a 384 by 490 pixel array. Since Hiten was spin stablized, the ONS shifted the charge from pixel to pixel to compensate for smear. The images were converted into a 4-bit digital signal that was relayed to earth. The resolution of the camera was about one arc minute.
Due to the limits of its spin compensation, small chip size, and 4-bit imagery, the images the ONS obtained were useful only for navigation. However, the ONS was used during the final plunge to the lunar surface, making for a Ranger-esque kamikaze sequence, although the quality is much poorer. The white dot marks the impact point. The view has been colorized. Below is an animation of the made from the sequence.
Hiten/ONS Data Courtesy JAXA. Processed Version Copyright Ted Stryk