Survey operations 05 jun thru 15 nov by M/V nikolay trubyatchinskiy and M/V kalas in area bound by 51-36.08N…
Sea of Okhotsk · HYDROPAC 1530/22
What this record establishes
Archived notice · 2022-06-22 09:30Z
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 43/22 011058Z JUN 22.. Issued 2022-06-01 11:54Z. 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
- Sea of Okhotsk. 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
Current notices and reporting history in the Sea of Okhotsk →
- issued
- 2022-06-01 11:54Z
- status
- Archived notice
- self-cancels
- 2022-11-16 00:01Z
- authority
- NAVAREA XIII 43/22 011058Z JUN 22.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 51.357, 144.141
- vessels
- M/V KALASM/V NIKOLAY TRUBYATCHINSKIY · 8 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF OKHOTSK. SAKHALIN. DNC 24. 1. SURVEY OPERATIONS 05 JUN THRU 15 NOV BY M/V NIKOLAY TRUBYATCHINSKIY AND M/V KALAS IN AREA BOUND BY 51-36.08N 144-26.78E, 51-29.38N 144-03.08E, 51-40.54N 143-54.15E, 51-34.76N 143-33.71E, 51-10.58N 143-49.25E, 51-05.93N 144-11.36E, 51-05.05N 144-24.47E, 51-07.31N 144-35.95E, 51-18.13N 144-39.70E. TWO MILE BERTH REQUESTED. 2. CANCEL THIS MSG 160001Z NOV 22.
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.
- 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.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Collected reports in this area · survey operations
135 within 180 nm since 2000 · 5 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.
- Survey operations in progress until 25 oct by M/V fyodor kovrov in area bound by 53-46.10N 141-20.00E,…2026-09-19
- Survey operations in progress until 25 oct by M/V fyodor kovrov in area bound by 53-55.97N 142-53.27E,…2026-09-15
- Survey operations in progress until 25 oct by M/V fyodor kovrov in areas bound by: a. 53-55.97N 142-53.27E,…2026-09-14
- Underwater operations 25 may thru 31 dec in area bound by 51-34.92N 143-24.27E, 51-34.90N 144-06.22E,…2026-05-22
- Underwater operations 01 may thru 31 oct in areas bound by: a. 51-27.95N 143-26.72E, 51-29.25N 143-45.52E,…2026-04-23
- Survey operations 25 jun until further notice by vessels in area bound by 52-37.78N 143-52.27E, 52-38.92N…2025-06-24
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
- Wave rider buoy established in 51-22.54N 144-14.17ENav aids · 3.7 nm
- Underwater operations 25 may thru 31 dec in area bound by 51-34.92N 143-24.27E, 51-34.90N 144-06.22E,…Surveys · 10.2 nm
- Underwater operations 01 may thru 31 oct in areas bound by: a. 51-27.95N 143-26.72E, 51-29.25N 143-45.52E,…Surveys · 16 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 10:40Z; 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.