If the arrival status is "ON WINDOW", this indicates the vessel arrived/departed within the proforma schedule (when a vessel is scheduled to arrive/depart).
2. If the arrival status is "OFF WINDOW", this indicates that the vessel arrived/departed outside the proforma schedule (when a vessel is scheduled to arrive/depart).
3. If the arrival status is "ADHOC", the vessel that don't have regularly scheduled calls at MICT.
4. If the arrival status is "INDUCEMENT", these are the rescue vessels or vessels on a one-time visit.