Sydney Harbour between Cremorne (Robertsons) Point and Garden Island. 11 May 2017.
Vessel at 33°51'22.73" S 151°13'51.85" E

Marine Traffic data:
IMO: 9326342
MMSI: 565180000
Call Sign: 9VHS3
Flag: Singapore [SG]
AIS Vessel Type: Cargo
Gross Tonnage: 12047
Deadweight: 19633 t
Length Overall x Breadth Extreme: 145m × 25.53m
Year Built: 2006

Smoke in air from bushfire Hazard Reduction burnoff