Brazil warns of hazardous rocket launching operations in the South Atlantic, from 0800 to 2000 daily, 15 through 19 September.
South Atlantic Ocean · HYDROLANT 1803/26
What this record establishes
Cancelled notice · 2026-09-14 15:15Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-09-11 23:18Z. First collected 2026-09-14 20:17Z; last seen in collection 2026-09-18 07:17Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- South Atlantic 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, rocket launching 0800Z to 2000Z daily 15 thru 17 sep in area bound by 05-55.28S…cancelled by this 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.
- HYDROLANT 1792/262026-09-10 · Cancelled notice
- HYDROLANT 1798/262026-09-11 · Cancelled notice
- HYDROLANT 1803/26 · this notice2026-09-11 · Cancelled notice
Current notices and reporting history in the South Atlantic Ocean →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2026-09-15 08:00Z | 2026-09-15 20:00Z | — | 12 h |
| 2026-09-16 08:00Z | 2026-09-16 20:00Z | — | 12 h |
| 2026-09-17 08:00Z | 2026-09-17 20:00Z | — | 12 h |
| 2026-09-18 08:00Z | 2026-09-18 20:00Z | — | 12 h |
| 2026-09-19 08:00Z | 2026-09-19 20:00Z | — | 12 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2026-09-11 23:18Z
- status
- Cancelled notice
- self-cancels
- 2026-09-19 21:00Z
- sea
- South Atlantic Ocean
- position
- -6.160, -34.297
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-14 20:17Z
Original warning text
SOUTH ATLANTIC. BRAZIL. 1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING 0800Z TO 2000Z DAILY 15 THRU 19 SEP IN AREA BOUND BY 05-55.28S 034-34.36W, 06-13.92S 034-39.38W, 06-23.59S 034-34.44W, 06-31.87S 034-11.54W, 06-23.83S 034-01.81W, 06-03.44S 033-56.53W, 05-52.66S 034-03.34W, 05-49.30S 034-25.37W. 2. CANCEL HYDROLANT 1798/26. 3. CANCEL THIS MSG 192100Z SEP 26.
Reading this warning
- 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.
- 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.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
- 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
43 within 180 nm since 1999 · 3 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 0800Z to 2000Z daily 15 thru 17 sep in area bound by 05-55.28S…2026-09-11
- Hazardous operations, rocket launching 0800Z to 2000Z daily 15 thru 17 sep in area bound by 05-55.28S…2026-09-10
- Hazardous operations, rocket launching 031300Z to 072030Z feb in area bound by 05-53.68S 035-11.15W,…2020-01-29
- Hazardous operations, rocket launching 291300Z to 312030Z jan in area bound by 05-53.68S 035-11.15W,…2020-01-24
- Hazardous operations, rocket launching, 0830Z to 2030Z daily 18 sep thru 27 oct: a. in area bound by…2017-09-15
- Hazardous operations 1000Z to 2100Z daily 27 thru 29 aug in area bound by 05-43.73S 034-59.43W, 05-48.22S…2014-08-22
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
- Odas buoy established in 05-09.46S 035-09.81WNav aids · 79.4 nm
- Odas buoy bravo rn-l temporarily established until 20 oct in 04-53.00S 035-46.01WNav aids · 116.6 nm
Worldwide in the collected sources
4 missile & rocket hazards listed in force · see all
Record snapshot 2026-09-24 11:58Z; 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.