Hazardous operations, space debris 270828Z to 270900Z, alternate 280806Z to 300749Z apr in area bound by…
Indian Ocean · HYDROPAC 1101/22
What this record establishes
Archived notice · 2022-04-27 08:57Z
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) · EASTERN RANGE 222125Z APR 22.. Issued 2022-04-22 22:05Z. 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.
Related notices and cancellation links
- Hazardous operations, space debris 231002Z to 231034Z, alternate 240939Z to 241011Z, 250917Z to 250949Z,…cancelled by this notice
- Cancel HYDROPAC 1101/22 and this msg, operations completedlater cancellation notice
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- HYDROPAC 1066/222022-04-18 · Archived notice
- HYDROPAC 1101/22 · this notice2022-04-22 · Archived notice
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-04-27 08:28Z | 2022-04-27 09:00Z | — | 32 min |
| 2022-04-28 08:06Z | 2022-04-30 07:49Z | — | 47 h 43 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-04-22 22:05Z
- status
- Archived notice
- self-cancels
- 2022-04-30 08:49Z
- authority
- EASTERN RANGE 222125Z APR 22.
- issued by
- EASTERN RANGE
- sea
- Indian Ocean
- position
- -40.693, 104.104
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTHEASTERN INDIAN OCEAN. DNC 03, DNC 04. 1. HAZARDOUS OPERATIONS, SPACE DEBRIS 270828Z TO 270900Z, ALTERNATE 280806Z TO 300749Z APR IN AREA BOUND BY 35-59S 096-07E, 35-39S 096-28E, 35-45S 097-27E, 38-15S 102-35E, 40-37S 106-44E, 43-25S 111-22E, 44-52S 112-46E, 45-18S 112-10E, 45-06S 110-29E, 42-59S 105-00E, 41-00S 101-14E, 38-31S 097-59E, 36-34S 096-17E. 2. CANCEL HYDROPAC 1066/22. 3. CANCEL THIS MSG 300849Z APR 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.
- 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.
- 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.
- 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 · missile & rocket hazards
9 within 180 nm since 2014 · 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 051635Z to 051710Z oct, alternate 061613Z to 061648Z and 071547Z to…2022-10-01
- Hazardous operations, space debris 0031Z to 0445Z daily 05 thru 10 sep in area bound by 26-12.00S…2022-09-02
- Hazardous operations, space debris 231002Z to 231034Z, alternate 240939Z to 241011Z, 250917Z to 250949Z,…2022-04-18
- Hazardous operations 082133Z to 082202Z apr, alternate 092110Z to 092139Z apr in area bound by 32-17S…2016-04-03
- Hazardous operations 181925Z to 181957Z apr, alternate 191902Z to 191934Z and 221751Z to 221823Z apr in area…2014-04-17
- Hazardous operations 182157Z to 182217Z apr, alternate 191902Z to 191934Z and 221751Z to 221823Z apr in area…2014-04-16
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 2026-10-02 07:17Z; 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.