
                    ARTCC BOUNDARY SEGMENTS DESCRIPTIONS  
                          DATA BASE RECORD LAYOUT  
                                (ARB-FILE)  


INFORMATION EFFECTIVE DATE: 04/05/2012
 
    RECORD FORMAT: FIXED  
    LOGICAL RECORD LENGTH: 397  
 
    EACH RECORD ENDS WITH A CARRIAGE RETURN CHARACTER AND LINE FEED 
    CHARACTER (CR/LF). THIS LINE TERMINATOR IS NOT INCLUDED IN THE 
    LOGICAL RECORD LENGTH.

    GENERAL INFORMATION:  
    1.  LEFT JUSTIFIED FIELDS HAVE TRAILING BLANKS  
    2.  RIGHT JUSTIFIED FIELDS HAVE LEADING BLANKS  
    3.  ELEMENT NUMBER IS FOR INTERNAL REFERENCE ONLY  
          AND NOT IN RECORD 
          
    Some of the ARTCC boundaries defined by the ARTCC facility are composed of 
    more than a single closed shape. Due to the format constraints and naming 
    conventions of the legacy ARB file it is not possible to publish each 
    shape separately. In these cases it is necessary to read the point 
    description text for the key phrase "TO POINT OF BEGINNING" to identify 
    where the shape returns to the beginning and forms a closed shape.        
  
J  T   L   S L   E N  
U  Y   E   T O   L U  
S  P   N   A C   E M  
T  E   G   R A   M B  
       T   T T   E E  
       H     I   N R  
             O   T  
             N           FIELD DESCRIPTION  
  
L  AN  12 00001  NONE    RECORD IDENTIFIER  
                         ARTCC IDENTIFIER + ALTITUDE STRUCTURE CODE +  
                         FIVE CHARACTER ARTCC BOUNDARY POINT DESIGNATOR  
L  AN0040 00013  NONE    CENTER NAME  
L  AN0010 00053  NONE    ALTITUDE STRUCTURE DECODE NAME  
L  AN0014 00063  ARP4    LATITUDE OF THE BOUNDARY POINT  
L  AN0014 00077  ARP5    LONGITUDE OF THE BOUNDARY POINT  
L  AN0300 00091  ARB21   DESCRIPTION OF BOUNDARY LINE CONNECTING POINTS  
                         ON THE BOUNDARY  
L  AN0006 00391  ARB28   SIX DIGIT NUMBER USED TO MAINTAIN PROPER SEQUENCE  
                         OF BOUNDARY SEGMENTS FOR REPORT PURPOSES  
L  AN0001 00397  ARP25   AN 'X' IN THIS FIELD INDICATES THIS POINT IS USED  
                         ONLY IN THE NAS DESCRIPTION AND NOT THE LEGAL  
                         DESCRIPTION  
