Eastern OPL, Johor
- Vessels seen
- 4
- Likely tankers
- 1
- Possible
- 1
Latest pass 2026-09-26 03:37 UTC · page updated 2026-10-01 23:02 UTC
Singapore Strait tanker watch
The Singapore Strait carries traffic between the Indian Ocean and the South China Sea. Outside the port limits, the Eastern OPL anchorage off Johor is used by tankers waiting for orders, taking bunkers or transferring cargo, including large crude carriers that are too big for many terminals.
Ship-to-ship activity in these waters has been linked in reporting to cargoes that obscure their origin, which is why satellite counts here are compared with AIS whenever both are available.
Tiles watched2
Vessels seen4Latest scene per tile
Likely tankers1
Possible tankers1
Scene dates26 Sept 2026
Large hulls that stay in place across several passes suggest floating storage rather than ships in transit.
Latest scenes
Eastern OPL, Johor
- Vessels seen
- 0
- Likely tankers
- 0
- Possible
- 0
How to read these numbers
- Counts are automatic proposals from 10-metre Sentinel-2 imagery. The detector is not a validated classifier: a “likely tanker” is a hull whose shape and deck colour fit a tanker, not an identified ship.
- Cloud-covered water is not searched. A low count under cloud is missing data, not an empty anchorage.
- Each tile is a sample about 12 kilometres across. Scenes arrive every few days per tile, so “latest” can mean several days old. The capture time is shown on every card.
- Vessels seen by satellite carry no names. Matching them with AIS needs a receiver in range at the same time.
Method and source details are on the sources page of the map. Contains modified Copernicus Sentinel data.