15 



CHAPTER II. IDENTIFICATION DATA 



2000. GENERAL 



2001. Each weather message must be identified in regard to the time 

 of the report and the position of the ship taking the observation. The identi- 

 fication data includes the following: Day of month, day of week, octant of 

 globe, latitude, longitude, time of report, and course and speed of the ship. 

 These data will be entered on Form 615-5 in the columns specified in the 

 following paragraphs. 



2100. DAY OF MONTH 



2101. Enter the day of the month (OCT), in column 1. A new day begins 

 at 0000 (midnight) OCT. The Greenwich date is not affected when crossing 

 the International Date Line (180th meridian for most routes). 



2200. DAY OF WEEK (Y) 



2201. Select the code figure from Code Table 1 corresponding to the 

 day of the week (Greenwich civil date) and enter the figure in column 2. 



Code Table 1 



Symbol Y. - Day of the Week 



2300. OCTANT OF GLOBE (Q) 



2301. Select the 

 globe corresponding 

 figure in column 3. 



code figure from Code Table 2 for the octant of the 

 to the latitude and longitude of the ship. Enter the 



