3.3 mile long seismic cable, marked by buoy with white strobe light, adrift in 39-37S 142-40E at 101740Z nov
Great Australian Bight · HYDROPAC 1820/01
What this record establishes
Archived notice · 2001-11-12 06:35Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · RCC AUSTRALIA IOR EGC#24201 101744Z NOV 01. Issued 2001-11-10 21:18Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Great Australian Bight. The parsed report position is -39.617, 142.667. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- S/V island explorer, one person on board, broken rudder in 11-07S 045-33E at 101100Z novlater cancellation notice
Current notices and reporting history in the Great Australian Bight →
- issued
- 2001-11-10 21:18Z
- status
- Archived notice
- authority
- RCC AUSTRALIA IOR EGC#24201 101744Z NOV 01
- issued by
- RCC AUSTRALIA IOR
- sea
- Great Australian Bight
- position
- -39.617, 142.667
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. 3.3 MILE LONG SEISMIC CABLE, MARKED BY BUOY WITH WHITE STROBE LIGHT, ADRIFT IN 39-37S 142-40E AT 101740Z NOV. 2. CANCEL THIS MSG 17 NOV.
Reading this warning
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- Off station / missing buoy
- A buoy that is not in its charted position — dragged, damaged, missing or removed.
- Adrift
- Loose and moving with wind and current — a vessel, container, buoy, log or anything else no longer secured.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · drifting objects
4 within 180 nm since 2001 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Great australian bightCable ops · 30.1 nm
- Special purpose vessel dependable / kdej / 367137000 conducting cable lay operations 10NM either side of…Other · 30.1 nm
- Six meter buoy, yellow, established in 38-47.62S 142-37.77ENav aids · 49.4 nm
- 1 X 6M yellow surface buoy established in position 38-47.62S 142-37.77E 2.5NM clearance requestedNav aids · 49.4 nm
- 2 X 6M yellow surface buoys fl.white 3S temporarily established within 1.0NM of position 38-47.19S…Nav aids · 49.9 nm
Worldwide in the collected sources
2 drifting objects listed in force · see all
Record snapshot 2026-10-03 13:45Z; source collection times vary.
Debris
Logs, buoys, mooring gear and other objects adrift. All current drifting objects →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.