powers of four

According to a statement released by the JPL, the problem first became apparent on April 22nd. Data from the scientific transmission, which currently reports on the conditions at the very edge of the solar system, began coming through with improper formatting, making it impossible to interpret the contents. Engineering data is still intelligible, so the JPL staff is expecting that it will be possible to figure out what's going wrong and introduce a fix. Serious attempts at repair were delayed by a planned roll maneuver, and only started on Friday. With a round-trip time of over a day, however, progress will undoubtedly be slow.

Still, optimism springs eternal at NASA. If it's deterministically corrupted in memory, it's possible they could post-process it.