Estimated Lock Times Message (Seaway)
Registrant:
Saint Lawrence Seaway Development Corporation
DAC:
366
FI:
2
State:
in force
Used by:
Saint Lawrence Seaway Development Corporation
Number of slots (max):
3
Reporting Rate:
Each individual Seaway message has an assigned update interval established by the Seaway Traffic Management System (TMS). However, the AIS network may elect to retransmit any messages, system resources permitting, at more frequent intervals.
Permitted as from:
09/03/2002
Technical point of contact:
U.S. Department of Transportation
John A. Volpe
Transportation Systems Center
55 Broadway
Cambridge, MA 02142
Details:
| Parameter | Number of bits | Description | |
| Designated Area Code |
10 | The Designated Area Code will be 366 for the United States or 316 for Canada depending on the location of transmitter. Refer to Section 1.1 for description |
|
| Function Identifier | 6 | FI=1 | |
| Reserved | 2 | ||
| Message ID | 6 | Message Identifier = 2 (00 0010 in binary) | |
| Timetag | 20 | Month, Day and Time of Message, | |
| Vessel Name | 90 | 15 character vessel name in 6 bit ASCII | |
| Last Location | 42 | 7 character identifier of last location in 6 bit ASCII | |
| Last ATA | 20 | See table below | |
| First Lock | 42 | 7 character identifier of first lock in 6 bit ASCII | |
| First Lock ETA | 20 | See table below | |
| Second Lock | 42 | 7 character identifier of second lock in 6 bit ASCII | |
| Second Lock ETA | 20 | See table below | |
| Delay | 42 | 7 character identifier of the first lock which currently has a vessel being delayed |
|
| Reserved | 4 | See table below | |
| Total Number of Bits | 366 | (3 Slots) | |
UTC Time
| Parameter | Number of bits | Description |
| Month | 4 | Month of year (01- 12 Month); 0 = not available; 13-15 not used |
| Day | 5 | Day of month (01 – 31 Days); 0 = not available |
| Hours | 5 | UTC Hours (0-23); 24 = not available; 25-31 not used |
| Minutes | 6 | UTC Minutes (0-59); 60 = not available; 61-63 not used |
| Total number of bits | 20 |