Hazardous operations, space debris 1430Z to 1630Z daily 20 thru 23 mar in area within 26 miles of trackline…
Indian Ocean · HYDROPAC 857/21
What this record establishes
Archived notice · 2021-03-23 17:30Z
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 X 34/21 180246Z MAR 21.. Issued 2021-03-18 09:38Z. 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
- Indian Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-03-20 14:30Z | 2021-03-20 16:30Z | — | 2 h |
| 2021-03-21 14:30Z | 2021-03-21 16:30Z | — | 2 h |
| 2021-03-22 14:30Z | 2021-03-22 16:30Z | — | 2 h |
| 2021-03-23 14:30Z | 2021-03-23 16:30Z | — | 2 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2021-03-18 09:38Z
- status
- Archived notice
- self-cancels
- 2021-03-23 17:30Z
- authority
- NAVAREA X 34/21 180246Z MAR 21.
- NAVAREA
- NAVAREA X · named as the source of this relay
- sea
- Indian Ocean
- position
- -46.982, 113.314
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTHEASTERN INDIAN OCEAN. DNC 04. 1. HAZARDOUS OPERATIONS, SPACE DEBRIS 1430Z TO 1630Z DAILY 20 THRU 23 MAR IN AREA WITHIN 26 MILES OF TRACKLINE JOINING 42-24.5S 115-06.5E, 51-16.5S 111-32.5E. 2. CANCEL THIS MSG 231730Z MAR 21.
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.
- Space debris
- An area where parts of a spacecraft or rocket stage are expected to come down at sea, from a launch or a planned re-entry.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- 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 · missile & rocket hazards
4 within 180 nm since 2017 · 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, space debris 051352Z to 051453Z oct, alternate 061330Z to 061421Z oct in area within…2020-10-03
- Hazardous operations space debris 1500Z to 1630Z daily 14 thru 17 jul in area bound by 51-03S 112-27E,…2017-07-12
- Hazardous operations space debris 1500Z to 1600Z daily 14 thru 17 jul in area bound by 51-03S 112-27E,…2017-07-11
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 2026-10-01 09:38Z; 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.