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ETA at lock/bridge/terminal

Introduction/Additional information: 

Introduction:

The ETA message shall be sent from vessel to shore (lock, open-able bridge or terminal) in order to inform that the vessel is heading towards the object and desires handling (locking, passing, berthing, transhipment, etc.) at the submitted date and time.

Additional Information / usage notes:

  • An acknowledgement by the RTA message (Inland ASM  FI 22) should be received within 15 minutes. Otherwise the ETA message should be repeated once. After additional 15 minutes the user shall be notified that no answer has been received.
  • A virtual MMSI number matching the country of the destination addressed by the ETA (see table  below) shall be used for each country, each national AIS network shall route messages addressed to other countries or different national AIS networks using this virtual MMSI number
  • In case no virtual MMSI number is available, the ETA message shall be sent to the closest AIS Base Station
  • UN country code, UN location code, Fairway section number, Object code and Fairway hectometre shall be derived from the ISRS code as part of the RIS Index published in the European Reference Data Management System (ERDMS).
  • The ETA shall always be transmitted in UTC but for input and display converted in local time of the destination.
  • The air draught shall be the minimum (e.g. with lowered wheelhouse / antenna mast) static air draught at speed = 0

List of virtual MMSI numbers:

V-MMSICountry
002039991Austria
n.a.Belgium
n.a.Bulgaria
n.a.Germany
n.a.Moldova
002268000France
n.a.Croatia
n.a.Hungary
n.a.The Netherlands
n.a.Italy
n.a.Luxembourg
n.a.Poland
n.a.Romania
n.a.Slovak Republic
n.a.Switzerland
n.a.Czech Republic
n.a.Ukraine
n.a.Russian Federation
n.a.Serbia

 

Permitted as from: 
10/10/2007
Registrant: 
EU
Physical link: 
AIS
Message number (0=VDES-VDE): 
6
DAC or VPFI: 
200
FI / Message ID: 
21
Technical point of contact: 

RIS VTT

State: 
in force
Number of slots (max): 
2
Last modified: 
29/01/2021 - 23:18
Reporting Rate: 

An acknowledgement by the RTA message (Inland ASM FI 22) should be received within 15 minutes. Otherwise the ETA message should be repeated once. After additional 15 minutes the user shall be notified that no answer has been received.

Details: 
ParameterBitDescription
Message ID6Identifier for Message 6; always 6
Repeat Indicator2Used by the repeater to indicate how many times a message has been repeated. Default = 0 ; 3 = do not repeat any more
Source ID30MMSI number of source station
Sequence Number20 - 3
Destination ID30MMSI number of destination station
Retransmit Flag1Retransmit Flag should be set upon retransmission: 0 = no retransmission = default; 1 = retransmitted.
Spare1Not used, should be set to zero. Reserved for future use.
Application Identifier16As described in Table 2,6
UN country code122*6 Bit characters
UN location code183*6 Bit characters
Fairway section number305*6 Bit characters
Terminal code305*6 Bit characters
Fairway hectometre305*6 Bit characters
ETA at lock/bridge/terminal20

EstamatedTime of ArrivalMMDDHHMM UTC
Bits 19 - 16: month 1 - 12; 0 = not available = default;
Bits 15 - 11: day 1 - 31 0 = not available = default;
Bits 10 - 6: hour 0 - 23 24 = not available = default;
Bits 5 - 0: minute 0 - 59 60 = not available = default

Number of assisting tugboarts33 0 - 6, 7 = unknown = default
Air draught120 - 4000 (rest not used), in 1/100m, 0 = default =
not used

Spare

5Not used, should be set to zero. Reserved for future
use.
Total248occupies 2 slots