ILS DATA BASE RECORD LAYOUT (ILS-FILE) INFORMATION EFFECTIVE DATE: 5/21/1999 RECORD FORMAT: FIXED LOGICAL RECORD LENGTH: 780 FILE STRUCTURE DESCRIPTION: --------------------------- THERE ARE A VARIABLE NUMBER OF FIXED-LENGTH RECORDS FOR EACH INSTRUMENT LANDING SYSTEM (ILS). THE NUMBER OF RECORDS IS DETERMINED BY THE NUMBER OF REMARK FIELDS RELATED TO EACH ILS. THE RECORDS ARE IDENTIFIABLE BY A RECORD TYPE INDICATOR (ILS1 OR ILS2), AIRPORT SITE NUMBER, RUNWAY END, AND ILS SYSTEM TYPE. 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. THE FILE IS SORTED BY STATE, CITY, AIRPORT NAME, RUNWAY END, SYSTEM TYPE, AND RECORD TYPE. DESCRIPTION OF THE RECORD TYPES: -------------------------------- AN 'ILS1' RECORD TYPE CONTAINS THE ILS DATA FOR THE RESPECTIVE RUNWAY END'S SYSTEM. THERE IS ALWAYS AN ILS1 RECORD. AN 'ILS2' RECORD TYPE CONTAINS ONE 400 CHARACTER REMARK PERTAINING TO THE PRECEDING ILS1 RECORD. EACH ILS1 RECORD MAY HAVE NONE, ONE, OR MANY ASSOCIATED ILS2 RECORDS. EACH ILS2 RECORD CONTAINS THE BASIC ILS IDENTIFYING INFORMATION (AIRPORT SITE NUMBER, RUNWAY END, AND ILS SYSTEM TYPE). 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 THE RECORD. 4. THE UNIQUE ILS IDENTIFIER IS MADE UP OF THE AIRPORT SITE NUMBER, RUNWAY END, AND ILS SYSTEM TYPE. 5. LATITUDE AND LONGITUDE INFORMATION IS REPRESENTED IN TWO WAYS: A. FORMATTED: ------------ LATITUDE DD-MM-SS.SSSH LONGITUDE DDD-MM-SS.SSSH WHERE : DD IS DEGREES MM IS MINUTES SS.SSS IS SECONDS H IS DECLINATION EXAMPLE : LAT- 39-06-51.070N LONG- 075-27-54.660W B. IN ALL SECONDS: ----------------- LATITUDE AND LONGITUDE SSSSSS.SSSH WHERE : SSSSSS.SSS IS THE DEG/MIN/SEC CONVERTED TO ALL SECONDS H IS THE DECLINATION EXAMPLE : LAT- 140811.070N LONG- 271674.660W ********************************************************************* 'ILS1' RECORD TYPE - BASE DATA ******************************************************************** 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 04 00001 N/A RECORD TYPE INDICATOR. ILS1: ILS DATA FOR RESPECTIVE RUNWAY. ILS AIRPORT/RUNWAY INFORMATION ------------------------------------- L AN 0011 00005 DLID AIRPORT SITE NUMBER IDENTIFIER. (EX. 04508.*A) L AN 0003 00016 DLID ILS RUNWAY END IDENTIFIER. (EX: 18,36L) NOTE: RUNWAY END IDENTIFIERS 00 AND 22V ARE VALID AND ARE USED TO ACCOMODATE LIMITATIONS IN THE GIM-II DBMS. L AN 0010 00019 I22 ILS SYSTEM TYPE SYSTEM TYPE DESCRIPTION --------------- --------------- ILS INSTRUMENT LANDING SYSTEM MLS MICROWAVE LANDING SYSTEM SDF SIMPLIFIED DIRECTIONAL FACILITY LOCALIZER LOCALIZER LDA LOCALIZER-TYPE DIRECTIONAL AID ISMLS INTERIM STANDARD MICROWAVE LANDING SYSTEM ILS/DME INSTRUMENT LANDING SYSTEM/ DISTANCE MEASURING EQUIPMENT SDF/DME SIMPLIFIED DIRECTIONAL FACILITY/ DISTANCE MEASURING EQUIPMENT LOC/DME LOCALIZER/DISTANCE MEASURING EQUIPMENT LOC/GS LOCALIZER/GLIDE SLOPE LDA/DME LOCALIZER-TYPE DIRECTIONAL AID/ DISTANCE MEASURING EQUIPMENT L AN 0010 00029 N/A INFORMATION EFFECTIVE DATE (MM/DD/YYYY) THIS DATE COINCIDES WITH THE 56 DAY CHARTING AND PUBLICATION CYCLE EFFECTIVE DATE. L AN 0042 00039 A2 AIRPORT NAME.(EX: CHICAGO O'HARE INTL) L AN 0026 00081 A1 ASSOCIATED CITY.(EX: CHICAGO) L AN 0002 00107 A4 TWO LETTER POST OFFICE CODE FOR THE STATE. (EX: IL) L AN 0020 00109 A4S STATE NAME.(EX: ILLINOIS) L AN 0003 00129 A6 FAA REGION CODE.(EXAMPLE, ACE = CENTRAL) L AN 0004 00132 E7 AIRPORT IDENTIFIER. (EX: ORD FOR CHICAGO O'HARE INTL) R N 0005 00136 A31 ILS RUNWAY LENGTH IN WHOLE FEET. (EX: 4000) R N 0004 00141 A32 ILS RUNWAY WIDTH IN WHOLE FEET. (EX: 100) ILS SYSTEM INFORMATION ------------------------------ L AN 0009 00145 I20 CATEGORY OF THE ILS. (I,II,IIIA) L AN 0050 00154 I10 NAME OF OWNER OF THE FACILITY. (EX: U.S. NAVY) L AN 0050 00204 I12 NAME OF THE ILS FACILITY OPERATOR. (EX: U.S. ARMY) L AN 0003 00254 I23 ILS APPROACH BEARING IN DEGREES MAGNETIC. (EX: 233) L AN 0003 00257 I24 THE MAGNETIC VARIATION AT THE ILS FACILITY. (EX: 09E) LOCALIZER INFORMATION ----------------------------- L AN 0015 00260 I7 TYPE OF LOCALIZER FACILITY ON SITE. TYPE DESCRIPTION ---- ----------- LOC LOCALIZER. LDA LOCALIZER-TYPE DIRECTIONAL AID. LOC/DME LOCALIZER AND DISTANCE MEASURING EQUIPMENT. SDF/DME SIMPLIFIED DIRECTIONAL FACILITY AND DISTANCE MEASURING EQUIPMENT. SDF SIMPLIFIED DIRECTIONAL FACILITY. LDA/DME LOCALIZER-TYPE DIRECTIONAL AID AND DISTANCE MEASURING EQUIPMENT. L AN 0005 00275 I30 IDENTIFICATION CODE OF LOCALIZER. (EX: M-IS, I-DD)(IDENTIFIER IS PREFIXED BY M- FOR ISMLS, MLS; I- FOR LDA/DME, LDA, LOCALIZER, ILS/DME, LOC/DME, LOC/GS, ILS; BLANK FOR ANY OTHER CODE. L AN 0006 00280 I31 LOCALIZER FREQUENCY (MHZ). (EX: 108.10) L AN 0014 00286 I4 LATITUDE OF LOCALIZER ANTENNA.(FORMATTED) L AN 0011 00300 I4S LATITUDE OF LOCALIZER ANTENNA.(ALL SECONDS) L AN 0014 00311 I5 LONGITUDE OF LOCALIZER ANTENNA.(FORMATTED) L AN 0011 00325 I5S LONGITUDE OF LOCALIZER ANTENNA.(ALL SECONDS) R AN 0005 00336 I28 LOCALIZER COURSE WIDTH.(DEGREES AND HUNDREDTHS) (EX: 3.00) R N 0005 00341 I34 LOCALIZER DISTANCE FROM STOP END OF RWY. (FEET) (IF NEGATIVE INDICATES PLACEMENT INBOARD FROM STOP END OF RUNWAY)(EX: -170) R N 0006 00346 I36 DISTANCE OF LOCALIZER ANTENNA FROM APPROACH END OF RUNWAY.(FEET) (IF NEGATIVE INDICATES PLACEMENT INBOARD FROM APPROCH END OF RUNWAY) (EX: 6000, -567) GLIDE SLOPE INFORMATION ------------------------------- L AN 0015 00352 I43 GLIDE SLOPE CLASS/TYPE. TYPE DESCRIPTION ---- ----------- GLIDE SLOPE STANDARD GLIDE SLOPE. GS/DME GLIDE SLOPE WITH DISTANCE MEASURING EQUIPMENT. BLANK NO GLIDE SLOPE FACILITY. L AN 0004 00367 I26 GLIDE SLOPE ANGLE IN DEGREES AND HUNDREDTHS OF DEGREE.(EX: 2.75) L AN 0006 00371 I42 GLIDE SLOPE TRANSMISSION FREQUENCY. (EX: 330.50) L AN 0014 00377 I44 LATITUDE OF GLIDE SLOPE TRANSMITTER ANTENNA. (FORMATTED) L AN 0011 00391 I44S LATITUDE OF GLIDE SLOPE TRANSMITTER ANTENNA. (ALL SECONDS) L AN 0014 00402 I45 LONGITUDE OF GLIDE SLOPE TRANSMITTER ANTENNA. (FORMATTED) L AN 0011 00416 I45S LONGITUDE OF GLIDE SLOPE TRANSMITTER ANTENNA. (ALL SECONDS) R N 0006 00427 I48 DISTANCE OF GLIDE SLOPE ANTENNA FROM APPROACH END OF RUNWAY.(FEET) (EX: 1050) R N 0007 00433 I108 ELEVATION OF RUNWAY AT POINT ADJACENT TO THE GLIDE SLOPE ANTENNA.(NEAREST TENTH OF A FOOT MSL) (EX: 210.5) INNER MARKER INFORMATION -------------------------------- L AN 0015 00440 I55 FACILITY/TYPE OF INNER MARKER. TYPE DESCRIPTION ---- ----------- MARKER MARKER BEACON ONLY BLANK NO INNER MARKER BEACON. L AN 0014 00455 I56 LATITUDE OF INNER MARKER/BEACON.(FORMATTED) L AN 0011 00469 I56S LATITUDE OF INNER MARKER/BEACON.(ALL SECONDS) L AN 0014 00480 I57 LONGITUDE OF INNER MARKER/BEACON.(FORMATTED) L AN 0011 00494 I57S LONGITUDE OF INNER MARKER/BEACON.(ALL SECONDS) R N 0006 00505 I60 DISTANCE FROM INNER MARKER TO APPROACH END OF RUNWAY.(FEET) (EX: 850) MIDDLE MARKER INFORMATION --------------------------------- L AN 0015 00511 I70 FACILITY/TYPE OF MIDDLE MARKER/LOCATOR. TYPE DESCRIPTION ---- ----------- MARKER MIDDLE MARKER BEACON ONLY COMLO COMPASS LOCATOR NDB NONDIRECTIONAL RADIO BEACON MARKER/COMLO MIDDLE MARKER/ COMPASS LOCATOR MARKER/NDB MIDDLE MARKER/ NONDIRECTIONAL RADIO BEACON. BLANK NO MIDDLE MARKER BEACON L AN 0002 00526 I67 LOCATION IDENTIFIER OF BEACON AT MIDDLE MARKER. (EX: LP) L AN 0005 00528 I81 NAME OF THE MIDDLE MARKER LOCATOR BEACON. (EX:HOGAF, VIOLE) R N 0003 00533 I68 FREQUENCY OF LOCATOR BEACON AT MIDDLE MARKER IN KHZ.(EX: 190) L AN 0014 00536 I71 LATITUDE OF LOCATOR AND MIDDLE MARKER BEACON. (IF BOTH LOCATOR AND MIDDLE MARKER ARE PRESENT, LATITUDE OF LOCATOR, IF DIFFERENT IS REFLECTED IN THE REMARKS SECTION IN FORMATTED MODE ONLY.) (FORMATTED) L AN 0011 00550 I71S LATITUDE OF LOCATOR AND MIDDLE MARKER (BEACON). (ALL SECONDS) L AN 0014 00561 I72 LONGITUDE OF COMPASS LOCATOR AND MIDDLE MARKER BEACON. (IF BOTH LOCATOR AND MIDDLE MARKER ARE PRESENT, LONGITUDE OF LOCATOR, IF DIFFERENT,IS REFLECTED IN THE REMARKS SECTION IN FORMATTED MODE ONLY.)(FORMATTED) L AN 0011 00575 I72S LONGITUDE OF COMPASS LOCATOR AND MIDDLE MARKER BEACON.(ALL SECONDS) R N 0006 00586 I75 DISTANCE OF MIDDLE MARKER LOCATOR FROM APPROACH END OF RUNWAY.(FEET) (EX: 3200) OUTER MARKER INFORMATION -------------------------------- L AN 0015 00592 I85 FACILITY TYPE OF OUTER MARKER LOCATOR. TYPE DESCRIPTION ---- ----------- MARKER OUTER MARKER BEACON ONLY COMLO COMPASS LOCATOR NDB NONDIRECTIONAL RADIO BEACON MARKER/COMLO OUTER MARKER/ COMPASS LOCATOR MARKER/NDB OUTER MARKER/ NONDIRECTIONAL RADIO BEACON. BLANK NO OUTER MARKER/LOCATOR L AN 0002 00607 I82 LOCATION IDENTIFIER OF OUTER MARKER LOCATOR. (EX: PI, HK) L AN 0005 00609 I96 NAME OF OUTER MARKER LOCATOR. (EX: BOOIE, PRICE) R N 0003 00614 I83 FREQUENCY OF TRANSMISSION OF OUTER MARKER LOCATOR IN KHZ. (EX: 190) L AN 0014 00617 I86 LATITUDE OF OUTER MARKER LOCATOR (FORMATTED). (IF BOTH LOCATOR AND OUTER MARKER ARE PRESENT, LATITUDE OF LOCATOR, IF DIFFERENT IS REFLECTED IN THE REMARKS SECTION, IN FORMATTED MODE ONLY.)(FORMATTED) L AN 0011 00631 I86S LATITUDE OF OUTER MARKER LOCATOR (SECONDS). L AN 0014 00642 I87 LONGITUDE OF LOCATOR/ OUTER MARKER.(FORMATTED) (IF BOTH LOCATOR AND OUTER MARKER ARE PRESENT, LONGITUDE OF LOCATOR, IF DIFFERENT IS REFLECTED IN THE REMARKS SECTION IN FORMATTED MODE ONLY) L AN 0011 00656 I87S LONGITUDE OF LOCATOR/ OUTER MARKER.(ALL SEC.) R N 0006 00667 I90 DISTANCE FROM APPROACH END OF RUNWAY TO OUTER MARKER/LOCATOR (FEET). (EX: 26650) L AN 0009 00673 I27 AVAILABILITY OF BACK COURSE MARKER. (EX: NONE, SEE RMRKS) DISTANCE MEASURING EQUIPMENT (DME) INFORMATION ---------------------------------------------- L AN 0004 00682 I98 CHANNEL ON WHICH DISTANCE DATA IS TRANSMITTED. (EX: 032X, 038X) L AN 0014 00686 I99 LATITUDE OF DME TRANSPONDER ANTENNA.(FORMATTED) L AN 0011 00700 I99S LATITUDE OF DME TRANSPONDER ANTENNA.(ALL SECONDS) L AN 0014 00711 I100 LONGITUDE OF DME TRANSPONDER ANTENNA.(FORMATTED) L AN 0011 00725 I100S LONGITUDE OF DME TRANSPONDER ANTENNA.(ALL SECONDS) R N 0006 00736 I103 DISTANCE OF DME FROM APPROACH END OF RUNWAY (FEET). (EX: 8650, -585) R N 0005 00742 I104 DISTANCE OF DME ANTENNA FROM STOP END OF RUNWAY. (EX: 462, -585) L AN 0034 00747 N/A BLANK ******************************************************************** 'ILS2' RECORD TYPE - INSTRUMENT LANDING SYSTEM REMARKS ******************************************************************* 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 04 00001 N/A RECORD TYPE INDICATOR. ILS2: ILS REMARKS FOR RESPECTIVE RUNWAY END L AN 0011 00005 DLID AIRPORT SITE NUMBER IDENTIFIER L AN 0003 00016 DLID ILS RUNWAY END IDENTIFIER. L AN 0010 00019 I22 ILS SYSTEM TYPE (SEE ILS1 RECORD FOR DESCRIPTION) L AN 0400 00029 RMRKS ILS REMARKS, FREE-FORM TEXT. L AN 0352 00429 N/A BLANK