Tuesday, 13/05/2025

Notice to Mariners

The new establishment of AtoN buoys no. “25”, “26”, “29”, “30”, “37”, “38”, “43”, “46”, “52” on the fairway route used for large load ships entry of Hau River

NOTICE TO MARINERS

The new establishment of AtoN buoys no. “25”, “26”, “29”, “30”, “37”, “38”, “43”, “46”, “52” on the fairway route used for large load ships entry of Hau River

No. 22/TBHH-TCTBĐATHHMN dated 26 January, 2024

TVH  – 03 – 2024

  • Waters: Tra Vinh Province
  • Fairway: used for large load ships entry of Hau River
  • AtoN buoys no.: “25”, “26”, “29”, “30”, “37”, “38”, “43”, “46”, “52”

VMS-South would like to inform  that the new establishment of AtoN buoys no. “25”, “26”, “29”, “30”, “37”, “38”, “43”, “46”, “52” on the fairway route used for large load ships entry of Hau River with the following details:

- The position for establishment of AtoN buoys: The fairway used for large load ships entry of Hau River (Quan Chanh Bo fairway section).

- Geographical coordinates:

AtoN buoys no. VN-2000 WGS-84
Latitude Longitude Latitude Longitude
“25” 09˚37’55,5”N 106˚24’30,2”E 09˚37’51,8”N 106˚24’36,6”E
“26” 09˚37’33,9”N 106˚26’37,3”E 09˚37’30,2”N 106˚26’43,7”E
“29” 09˚37’54,9”N 106˚23’24,4”E 09˚37’51,2”N 106˚23’30,8”E
“30” 09˚37’43,5”N 106˚25’32,9”E 09˚37’39,8”N 106˚25’39,3”E
“37” 09˚37’21,2”N 106˚20’23,5”E 09˚37’17,6”N 106˚20’29,9”E
“38” 09˚37’40,6”N 106˚22’25,5”E 09˚37’36,9”N 106˚22’31,9”E
“43” 09˚37’02,5”N 106˚18’43,2”E 09˚36’58,8”N 106˚18’49,7”E
“46” 09˚37’10,7”N 106˚19’45,1”E 09˚37’07,1”N 106˚19’51,5”E
“52” 09˚36’49,7”N 106˚17’52,2”E 09˚36’46,0”N 106˚17’58,6”E
  1. Visual AtoN marks
    • Buoys no. “25”, “29”, “37”, “43”
  • Function: a mark (or buoy) which is to be left to the starboard hand when approaching from the open sea or in general proceeding in the direction of the main stream of flood tide, or in the direction established by the appropriate authority, vessels can navigate to the port hand side of fairway.

 

CHARACTERISTICS

  1. Day time
  • Shape: Lattice tower;
  • Type of buoy: Diameter 2,0 m; Buoy no. “25” has diameter 2,09 m;
  • Height of tower from water surface to top-mark: 4,67 m;
  • Height of tower from water surface to top-mark of Buoy no. “25” is 3,07 m;
  • Color: Green;
  • Topmark: Single green cone, point upward;
  • Sign number: “25”, “29”, “37”, “43” in white;
  1. Night time
  • Light characteristics: Green light, Flash(), everey 3,0s;
  • Lighting scope: 3600;
  • Focal plane height: 3,58 m from topmark to water surface;
  • Focal plane height of Buoy no. “25” is 2,29 m;
  • Luminous range: 2,0 NM with Atmospheric Transmittance T = 0,74.
    • AtoN Buoys no. “26”, “30”, “38”, “46”, “52”
  • Function: a mark (or buoy) which is to be right to the port hand when approaching from the open sea or in general proceeding in the direction of the main stream of flood tide, or in the direction established by the appropriate authority, vessels can navigate to the starboard hand side of fairway.

 

CHARACTERISTICS

 

  1. Day time
  • Shape: Lattice tower;
  • Type of buoy: 2,0 m diameter; 2,09 m diameter of Buoy no. “52”;
  • Height of tower from water surface to top-mark: 4,67 m;
  • Height of tower from water surface to top-mark of buoy no. “52” is 3,07 m;
  • Color: Red;
  • Topmark: Single red cylinder (can);
  • Sign number: “26”, “30”, “38”, “46”, “52”, in white;
  1. Night time
  • Light characteristics: Red light, Flash(), every 3,0s;
  • Lighting scope: 3600;
  • Focal plane height: 3,58 – 3,69 m from topmark to water surface;
  • Focal plane height of Buoy no. “52” is 2,29 m;
  • Luminous range: 2,0 – 5,0 Nm with Atmospheric Transmittance T = 0,74.
  1. Radio marks (AtoN marks AIS “real”)
  • Coordinates and identification code:
Buoys no. WGS-84 Identification Code
Latitude Longitude
“26” 09˚37’30,2”N 106˚26’43,7”E 995741041
“38” 09˚37’36,9”N 106˚22’31,9”E 995741042
  • Type of mark: AIS “real”;
  • Operating frequency range: 161,975 Mhz – 162,025 Mhz;
  • Number sign: “BUOY SH26”, “BUOY SH38”;
  • Frequency of broadcasting information: continuously 24/7;
  • Luminous range: 5,0 NM;
  • broadcasting information of AtoN marks: The message no. 21, 6 transferring information about name, position, function of AtoN marks and the operation status of marks.

NAVIGATION GUIDANCE

All vessels navigating on the fairway route used for large load ships entry of Hau River following the guidance of AtoN system and absolutely comply with the guidance of Maritime Administration of Can Tho for maritime safety ([1])./.

([1]) Tổ chức cung cấp số liệu, thông tin phục vụ việc công bố thông báo hàng hải chịu trách nhiệm trước pháp luật về sự chính xác của số liệu, thông tin mình cung cấp theo khoản 3, điều 47, Nghị định số 58/2017/NĐ-CP.


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