Partner
Who handed it off
The partner code is the yard or carrier that passed the record in.
Yard office
Where this shipment record came from.
The source card is the handoff: which partner passed the record, which gate took it, and when it was last scanned.
Gate
Where it was taken
The gate is the door on this host that accepted the handoff.
Scan
Last seen
The scan time is the last time this host touched the record.