Twenty-one yellow light buoys with scientific equipment are deployed in an area bounded by 09-51S to 10-36S and 129-58E to 128-43E; mariners should navigate with caution.
Timor Sea · AUSCOAST 202/26
What this record establishes
Cancelled notice · 2026-09-16 22:08Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0) · Australian Maritime Safety Authority — JRCC Australia (NAVAREA X coordinator). Issued 2026-05-28 01:16Z. First collected 2026-08-18 09:33Z; last seen in collection 2026-09-16 21:53Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Timor Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
- issued
- 2026-05-28 01:16Z
- status
- Cancelled notice
- authority
- Australian Maritime Safety Authority — JRCC Australia (NAVAREA X coordinator)
- NAVAREA
- NAVAREA X
- issued by
- JRCC AUSTRALIA
- sea
- Timor Sea
- position
- -10.225, 129.342
- nearest port
- Darwin · 162 nm
- source
- Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0) · first seen 2026-08-18 09:33Z
Original warning text
21 YELLOW LIGHTBUOYS, FL Y 1.5 SEC, WITH SCIENTIFIC EQUIPMENT ATTACHED, DEPLOYED IN AN AREA BOUNDED BY 09-51S TO 10-36S AND 129-58E TO 128-43E. MARINERS ARE REQUESTED TO NAVIGATE THE AREA WITH CAUTION.
Reading this warning
- Light characteristic
- The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.
- Scientific mooring
- Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
Collected reports in this area · survey operations
28 within 180 nm since 2000 · 2 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.
- Underwater operations in progress until further notice by M/V reach remote 2 in area bound by 11-13.00S…2026-09-05
- Underwater operations in progress until further notice by M/V seven pegasus in 09-49.26S 130-16.14E2024-11-15
- Underwater operations in progress until further notice by M/V fugro kwilena in vicinity of trackline joining…2024-11-13
- Underwater operations in progress until further notice by M/V ocean surveyor within five miles of trackline…2024-11-01
- Underwater operations in progress until further notice by M/V seven oceans in vicinity 09-49.28S 130-16.00E2024-05-27
- Underwater operations in progress until further notice by M/V seven oceans in 09-49.28S 130-16.01E2024-05-03
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-09-28 10:30Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.