Survey operations are underway by vessel Shark 1 in the Timor Sea until further notice, requesting a two-mile berth, and canceling warning HYDROPAC 2011/26.
Timor Sea · HYDROPAC 2805/26
What this record establishes
Cancelled notice · 2026-09-28 16:45Z
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
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-09-28 07:04Z. First collected 2026-09-28 19:02Z; last seen in collection 2026-09-29 03:02Z. 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.
Related notices and cancellation links
- issued
- 2026-09-28 07:04Z
- status
- Cancelled notice
- sea
- Timor Sea
- position
- -11.933, 125.550
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-28 19:02Z
Original warning text
TIMOR SEA. 1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V SHARK 1 IN AREA BOUND BY 11-30.00S 125-05.00E, 12-22.00S 125-05.00E, 12-22.00S 126-01.00E, 11-30.00S 126-01.00E. TWO MILE BERTH REQUESTED. 2. CANCEL HYDROPAC 2011/26.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
Collected reports in this area · survey operations
62 within 180 nm since 2006 · 10 in the last 12 months · 3 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.
- Special purpose vessel shark 1/T2DT6/572762220 conducting hydrographic survey in an area bounded by 11-30.00…2026-09-28
- Underwater operations in progress until further notice by M/V reach remote 2 in area bound by 11-13.00S…2026-09-05
- Survey operations in progress until further noticeby M/V sw bly towing twelve 7300 meter cables in area…2026-08-05
- Survey operations in progress until further notice by M/V shark 1 in area bound by 11-30.00S 125-05.00E,…2026-07-14
- Special purpose vessel shark 1 / T2DT6 / 572762220 conducting hydrographic survey in an area bounded by…2026-07-14
- Underwater operations in progress until further notice by M/V safe boreas in area bound by 12-54.90S…2026-03-29
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
- Special purpose vessel shark 1/T2DT6/572762220 conducting hydrographic survey in an area bounded by 11-30.00…Surveys · 0 nm
- Underwater operations in progress until further notice by M/V safe boreas in area bound by 12-54.90S…Surveys · 86.9 nm
- Special purpose vessel safe boreas 565905000 supporting underwater operations in an area bounded by…Surveys · 86.9 nm
Worldwide in the collected sources
54 survey operations listed in force · see all
Record snapshot 2026-09-29 03:16Z; 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.