Hazardous operations, rocket launching 201100Z to 201500Z apr, 0500Z to 0900Z daily 21 and 22 apr and 0500Z…
East Siberian Sea · HYDROARC 50/23
What this record establishes
Archived notice · 2023-04-22 03:10Z
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 XXI 16/23 130656Z APR 23.. Issued 2023-04-15 07:59Z. 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
- East Siberian 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 HYDROARC 50/23 and this msglater cancellation notice
Current notices and reporting history in the East Siberian Sea →
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2023-04-20 11:00Z | 2023-04-20 15:00Z | — | 4 h |
| 2023-04-25 05:00Z | 2023-04-25 15:00Z | — | 10 h |
| 2023-04-26 05:00Z | 2023-04-26 15:00Z | — | 10 h |
| 2023-04-27 05:00Z | 2023-04-27 15:00Z | — | 10 h |
| 2023-04-28 05:00Z | 2023-04-28 15:00Z | — | 10 h |
| 2023-04-29 05:00Z | 2023-04-29 15:00Z | — | 10 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2023-04-15 07:59Z
- status
- Archived notice
- self-cancels
- 2023-04-29 16:00Z
- authority
- NAVAREA XXI 16/23 130656Z APR 23.
- NAVAREA
- NAVAREA XXI · named as the source of this relay
- sea
- East Siberian Sea
- position
- 75.666, 156.919
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EAST SIBERIAN SEA. RUSSIA. DNC 27. 1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING 201100Z TO 201500Z APR, 0500Z TO 0900Z DAILY 21 AND 22 APR AND 0500Z TO 1500Z DAILY 25 THRU 29 APR IN AREA BOUND BY 77-25.62N 155-33.30E, 76-48.75N 150-51.52E, 74-12.50N 157-26.45E, 73-53.42N 161-19.82E, 74-58.35N 161-59.62E. 2. CANCEL THIS MSG 291600Z APR 23.
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.
- Hazardous operations
- NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
- Rocket launching
- The areas where spent rocket stages, boosters and fairings are expected to fall after a launch, with the launch window.
- 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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · missile & rocket hazards
10 within 180 nm since 2022 · 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.
- Hazardous operations, rocket launching 0930Z to 1100Z daily 15 thru 30 apr in area bound by 76-48.44N…2024-04-10
- Hazardous operations, rocket launching 0930Z to 1100Z daily 03 thru 14 apr in area bound by 77-25.37N…2024-03-29
- Hazardous operations, rocket launching 0800Z to 1100Z daily 21 thru 30 mar in area bound by 77-25.37N…2024-03-16
- Hazardous operations, rocket launching 0800Z to 1100Z daily 18 thru 20 dec, alternate 0800Z to 1100Z daily…2023-12-13
- Hazardous operations, rocket launching 0800Z to 1100Z daily 09 thru 14 dec, alternate 0800Z to 1100Z daily…2023-12-04
- Hazardous operations, rocket launching 0800Z to 1100Z daily 29 nov thru 04 dec, alternate 0800Z to 1100Z…2023-11-27
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
4 missile & rocket hazards listed in force · see all
Record snapshot 2026-09-24 18:25Z; source collection times vary.
Missiles
Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →
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.