Survey operations in progress until 01 aug by M/V pgs apollo towing ten five mile long cables in area bound…
Timor Sea · HYDROPAC 1774/19
What this record establishes
Archived notice · 2019-07-24 23:42Z
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) · NAVAREA XI 305/19 300900Z MAY 19.. Issued 2019-05-30 09:01Z. 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
- 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
- Cancel HYDROPAC 1774/19 and this msg, operations completedlater cancellation notice
- issued
- 2019-05-30 09:01Z
- status
- Archived notice
- authority
- NAVAREA XI 305/19 300900Z MAY 19.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Timor Sea
- position
- -9.102, 128.610
- vessel
- M/V PGS APOLLO · 81 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
TIMOR SEA. INDONESIA. DNC 04. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 01 AUG BY M/V PGS APOLLO TOWING TEN FIVE MILE LONG CABLES IN AREA BOUND BY 08-25S 127-55E, 09-25S 127-50E, 09-25S 129-40E, 09-00S 129-40E, 09-00S 128-15E, 08-25S 128-15E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 02 AUG 19.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
18 within 180 nm since 2000 · 3 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
- 21 yellow lightbuoys, fl y 1.5 sec, with scientific equipment attached, deployed in an area bounded by…2026-05-28
- Underwater operations in progress until further notice by M/V skandi hercules in 10-36.90S 125-59.10E2025-12-20
- Underwater operations in progress until further notice by M/V bhagwan dryden in 10-36.50S 125-59.80E2025-05-12
- Underwater operations in progress until further notice by M/V sapura constructor in 10-35.41S 125-59.26E2025-02-03
- Underwater operations in progress until further notice by M/V seven pegasus in 09-49.26S 130-16.14E2024-11-15
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 2026-10-03 02:33Z; 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.