Cable ops
Seismic survey in progress until further notice by M/V harmattan towing six 3600 meter long cables along…
HYDROLANT 437/99
- issued
- 1999-03-04 06:20Z
- status
- cancelled 1999-04-02 00:00Z (archive)
- cancels
- HYDROLANT 2179/98
- position
- -21.500, -39.941
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V HARMATTAN TOWING SIX 3600 METER LONG CABLES ALONG TRACKLINE JOINING 21-23S 040-08W, 21-23S 039-50W, 21-37S 039-50W, 21-37S 040-08W. FOUR MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 2179/98(24), 2371/98(24).
This area · cable & pipeline work
1458 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now
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- Underwater operations 1100Z to 2100Z daily 19 thru 24 apr by cableship intrepid in 20-22.45S 040-11.23W2021-04-18
- Seismic survey in progress until 23 apr by nps sigma in area bound by 21-10.6S 039-55.5W, 21-10.5S…2016-04-12
- Seismic survey 10 thru 16 apr by nps sigma in area bound by 21-19.4S 039-57.5W, 21-17.3S 039-57.5W, 21-11.2S…2016-04-09
- Seismic survey in progress until 09 apr by M/V nps sigma in area bound by 21-00.6S 039-44.0W, 21-11.4S…2016-04-01
- Seismic survey 26 mar thru 02 apr by M/V nps sigma in area bound by 21-00.6S 039-44.0W, 21-11.4S 039-39.3W,…2016-03-27
- Seismic survey 19 thru 26 mar by M/V nps sigma in area bound by 21-19.07S 039-57.08W, 21-17.05S 039-57.08W,…2016-03-18
Season · when cable & pipeline work happen here
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month of issue, all years in the archive
Timeline
- RACON at ponta da tijoca light 00-33.5S 047-53.3W inoperativereplaced · 1998-11-15
- Seismic survey in progress until further notice by M/V harmattan towing six 3600 meter long cables along a…replaced · 1998-12-11
- HYDROLANT messages in force 020800Z apr 99cancelled by · 1999-04-02
Nearby now · within 120 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 44.1 nm
- Survey operations in progress until 09 jul 27 by M/V bgp dragon towing 250 meter long cable in area bound by…Surveys · 46.7 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 51.9 nm
- Survey operations in progress until 312200Z aug in area bound by 21-36.17S 041-00.00W, 21-36.05S 040-37.59W,…Surveys · 52.7 nm
- Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 56.1 nm
- Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 58.3 nm
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05WSurveys · 58.8 nm
- Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 62.6 nm
- Underwater operations 1100Z to 2100Z daily 13 thru 22 aug by M/V comando b and M/V am kirti in 20-23.90S…Surveys · 67.3 nm
- Underwater operations 1100Z to 2100Z daily 12 thru 21 aug by M/V comando b and M/V faneromeni in 20-23.67S…Surveys · 67.5 nm
- Underwater operations 0800Z to 1800Z daily 08 thru 22 aug by M/V marsanne and M/V comando b in 20-23.57S…Surveys · 67.5 nm
- Underwater operations 1100Z to 2100Z daily 15 thru 29 aug by M/V comando b and M/V rosco banyan in 20-23.37S…Surveys · 68 nm
Worldwide now
38 cable & pipeline work in force · see all
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
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.