Oceanographic equipment at depth 44 meters, established in 66-38.78N 170-31.82W
Chukchi Sea · HYDROPAC 2904/23
What this record establishes
Archived notice · 2023-12-04 10:09Z
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 XIII 112/23 090911Z SEP 23.. Issued 2023-09-09 16:08Z. 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
- Chukchi Sea. The parsed report position is 66.646, -170.530. 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
- Cancel HYDROPAC 2904/23 and this msglater cancellation notice
- issued
- 2023-09-09 16:08Z
- status
- Archived notice
- authority
- NAVAREA XIII 112/23 090911Z SEP 23.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Chukchi Sea
- position
- 66.646, -170.530
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CHUKCHI SEA. RUSSIA. DNC 27. OCEANOGRAPHIC EQUIPMENT AT DEPTH 44 METERS, ESTABLISHED IN 66-38.78N 170-31.82W.
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.
- Scientific mooring
- Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
- 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
27 within 180 nm since 2005 · 3 in the last 12 months · 2 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.
- Scientific moorings, at depth 15 meters, established in: a. 65-46.86N 168-34.06W2026-09-17
- Scientific mooring, at depth seven meters, established in 66-19.59N 168-57.01W2026-09-17
- Survey operations in progress until 10 sep by vessel aleksandr rogotskiy in area bound by 66-05.00N…2026-08-26
- Scientific mooring, at depth seven meters, established in 66-19.56N 168-57.08W2025-07-14
- Scientific moorings, at depth 15 meters, established in: a. 65-46.86N 168-34.07W2025-07-14
- Scientific moorings established in: a. 68-08.94N 166-01.68W2023-08-09
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
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-01 14:05Z; 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.