See Channel 14 for more information on this topic.
During the first interactions with SYSTEM in The Sleuth’s Discord, this schedule from Channel 14 was obtained from the decoded SSTV files its Terminal Storage component:
The purpose of schedule is to keep up with something
<OUTPRINT>!:(You spelt schedule wrong, but it's used to keep up with when NaN.)
and could be of some significance later on, so it is a good idea to keep an eye out for any relevance relating to Channel 14 in particular.