missedA scheduled run didn't receive a pulse in time, but a pulse was received within the delay you've set for your monitor. If this happens a lot, your cron jobs are overlapping and you might want to consider a different schedule.
failedA scheduled run didn't receive a pulse in time and the delay was reached. We've alerted you.
okWe've received a pulse in time and cleared the scheduled date.
plannedThis date is in the future.
runningThe scheduled date is due and we're waiting for a pulse.