Survey operations in progress until 30 mar 20 by M/V elsa regent towing six mile long cable in areas bound…
Java Sea · HYDROPAC 3789/19
What this record establishes
Archived notice · 2020-03-31 00:01Z
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 661/19 190906Z NOV 19.. Issued 2019-11-19 09:23Z. 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
- Java 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
- 2019-11-19 09:23Z
- status
- Archived notice
- authority
- NAVAREA XI 661/19 190906Z NOV 19.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Java Sea
- position
- -5.815, 117.648
- vessel
- M/V ELSA REGENT · 12 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
MAKASSAR STRAIT.
JAVA SEA.
FLORES SEA.
INDONESIA.
DNC 04.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 30 MAR 20 BY
M/V ELSA REGENT TOWING SIX MILE LONG CABLE
IN AREAS BOUND BY:
A. 04-37-18S 116-15-33E, 05-49-52S 118-59-37E,
04-31-44S 119-11-37E, 02-14-15S 118-47-08E,
01-58-25S 117-56-43E, 02-41-31S 116-37-03E.
B. 06-23-42S 114-32-44E, 07-33-07S 114-18-07E,
08-08-46S 115-39-29E, 08-00-40S 117-52-02E,
08-16-12S 121-38-01E, 06-55-28S 120-22-25E,
05-43-52S 120-20-42E, 05-50-58S 119-01-12E,
04-33-58S 116-08-44E.
WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 3525/19.
3. CANCEL THIS MSG 31 MAR 20.
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.
- 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.
- 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
4 within 180 nm since 2018 · 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.
- Survey operations in progress until further notice by M/V geo coral towing 12 8100 meter long cables in area…2024-11-18
- Survey operations in progress until 30 sep by M/V pgs apollo towing ten five mile long cables in area bound…2018-09-14
- Survey operations in progress until 15 sep by M/V apollo towing ten five mile long cables in area bound by…2018-07-10
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
55 survey operations listed in force · see all
Record snapshot 2026-10-01 11:34Z; 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.