There may be instances when an AIS-based event that had previously been displayed in Skylight, or was available via API, is no longer visible. As a near real-time system, Skylight displays the most up-to-date information available at the time. However, as additional updated AIS data is received or information processes are run, Skylight may learn that the event did not ultimately meet the requirements. In these rare instances, the event is removed from Skylight.
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