IPAC exit codes for CCD readout channels run from 0 to 63, starting
from the top of each image. Individual exposures are distributed along
the X-axis. Blank/black rectangles mean there were no error during processing
of a readout channel. Other
colours represent processing errors of different types.
The error colours can change over time and thus do not
represent specific errors.

Exposures that failed to process all from Archon 1 (CCDs 3,4,7,8).
From 2026-01-25.
Exposures with shutter errors (2025-08-18).
An excess errors just from occuring in CCD 4 (horizontal blue ragions)
from 2024-05-16.
The horizontal green section shows errors with noisy CCD number 6.
Irregular errors just occuring from CCDs 1,6,9,14 on 2025-07-03.
Sets of failures across multiple nights from varying Archons 1 and 4
as well as 3 on one night. Taken on 2026-04-01.
Many hours of observations taken through thick clouds causing processing
failure for most exposures.
Four hours of observing clouds during the first part of the night.