CifpLocalizer

ILS/LOC localizer and glide slope facility records for airports, containing frequency, position, bearing, and approach category data

Source: CIFPTable: CIFP_LOCALIZERVersion: 239462ba9c35 (effective 2026-04-16)

Section code PI indicates ILS/LOC records. Coordinates are encoded as NDDMMSSCC (degrees, minutes, seconds, hundredths). Bearings, widths, and angles are encoded as scaled integers (e.g., bearing 1925 = 192.5 degrees, glide slope angle 300 = 3.00 degrees, localizer width 0510 = 5.10 degrees).

Example query

# Introspect the CifpLocalizer type in GraphiQL at https://api.nav.sortie.co/graphql
# Example shape (pair with a compatible root query field):
{
  # ...rootQuery... {
    recordType
    customerAreaCode
    sectionCode
    airportIdentifier
  # }
}

Run at https://api.nav.sortie.co/graphql — GraphiQL is available in-browser.

Fields (28)

Field	Type	Description	Units	Enum
recordType ← RECORD_TYPE	RecordType	ARINC 424 record type indicator; S=Standard record		S — Standard record
customerAreaCode ← CUSTOMER_AREA_CODE	CustomerAreaCode	Geographic area code identifying the region of the world for which the data applies		CAN — Canada LAM — Latin America and Mexico PAC — Pacific (non-Hawaii) SPA — South Pacific Area USA — United States
sectionCode ← SECTION_CODE	CifpLocalizerSectionCode	ARINC 424 section code identifying the type of record; PI indicates ILS/Localizer records		PI — ILS/Localizer
airportIdentifier ← AIRPORT_IDENTIFIER	String	ICAO identifier of the airport at which the ILS/localizer facility is located
icaoCode ← ICAO_CODE	CifpLocalizerIcaoCode	ICAO region code identifying the geographic region of the airport		12 values K1 — Contiguous United States (western) K2 — Contiguous United States (north-central) K3 — Contiguous United States (south-central) K4 — Contiguous United States (eastern) K5 — Contiguous United States (southeastern) K6 — Contiguous United States (north-eastern) K7 — Contiguous United States (other) NS — Pacific Islands (US-administered) PA — Alaska PG — Guam and Mariana Islands PH — Hawaii TJ — Puerto Rico and US Virgin Islands
localizerIdentifier ← LOCALIZER_IDENTIFIER	String	Four-character identifier of the localizer facility (e.g., IBET, IBRW)
ilsCategory ← ILS_CATEGORY	IlsCategory	ILS approach category indicating precision capability of the ILS system		0 — LOC only (no glide slope / non-precision localizer) 1 — ILS Category I 2 — ILS Category II 3 — ILS Category III A — IGS (Instrument Guidance System) L — LDA (Localizer-type Directional Aid)
continuationRecordNo ← CONTINUATION_RECORD_NO	String	Continuation record number; 0 indicates the primary record, values 1 and above indicate continuation records with additional data
localizerFrequency ← LOCALIZER_FREQUENCY	LocalizerFrequency	Localizer transmitter frequency encoded as an integer by multiplying MHz by 100 (e.g., 11150 = 111.50 MHz)	MHz (scaled by 100)	38 values 10830 — 108.30 MHz 10835 — 108.35 MHz 10850 — 108.50 MHz 10855 — 108.55 MHz 10870 — 108.70 MHz 10875 — 108.75 MHz 10890 — 108.90 MHz 10895 — 108.95 MHz 10910 — 109.10 MHz 10915 — 109.15 MHz 10930 — 109.30 MHz 10935 — 109.35 MHz 10950 — 109.50 MHz 10955 — 109.55 MHz 10970 — 109.70 MHz 10975 — 109.75 MHz 10990 — 109.90 MHz 10995 — 109.95 MHz 11010 — 110.10 MHz 11015 — 110.15 MHz 11030 — 110.30 MHz 11035 — 110.35 MHz 11050 — 110.50 MHz 11055 — 110.55 MHz 11070 — 110.70 MHz 11075 — 110.75 MHz 11090 — 110.90 MHz 11095 — 110.95 MHz 11110 — 111.10 MHz 11115 — 111.15 MHz 11130 — 111.30 MHz 11135 — 111.35 MHz 11150 — 111.50 MHz 11155 — 111.55 MHz 11170 — 111.70 MHz 11175 — 111.75 MHz 11190 — 111.90 MHz 11195 — 111.95 MHz
runwayIdentifier ← RUNWAY_IDENTIFIER	String	Identifier of the runway served by this localizer (e.g., RW27, RW08, RW19R)
localizerLatitude ← LOCALIZER_LATITUDE	String	Latitude of the localizer antenna encoded as NDDMMSSCC or SDDMMSSCC (hemisphere, degrees, minutes, seconds, hundredths of seconds)	degrees (encoded)
localizerLongitude ← LOCALIZER_LONGITUDE	String	Longitude of the localizer antenna encoded as EDDDMMSSCC or WDDDMMSSCC (hemisphere, degrees, minutes, seconds, hundredths of seconds)	degrees (encoded)
localizerBearing ← LOCALIZER_BEARING	String	Front course bearing of the localizer in tenths of degrees (e.g., 1925 = 192.5 degrees true)	degrees true (scaled by 10)
glideSlopeLatitude ← GLIDE_SLOPE_LATITUDE	String	Latitude of the glide slope antenna encoded as NDDMMSSCC or SDDMMSSCC (hemisphere, degrees, minutes, seconds, hundredths of seconds)	degrees (encoded)
glideSlopeLongitude ← GLIDE_SLOPE_LONGITUDE	String	Longitude of the glide slope antenna encoded as EDDDMMSSCC or WDDDMMSSCC (hemisphere, degrees, minutes, seconds, hundredths of seconds)	degrees (encoded)
localizerPosition ← LOCALIZER_POSITION	String	Distance of the localizer antenna from the stop end of the runway in tens of feet (e.g., 1306 = 1306 tens of feet; actual distance in feet when divided by scaling factor)	feet
localizerPositionReference ← LOCALIZER_POSITION_REFERENCE	String	Reference point used for the localizer position measurement; null when not specified
glideSlopePosition ← GLIDE_SLOPE_POSITION	String	Distance of the glide slope antenna from the runway threshold along the runway centerline in tens of feet	feet
localizerWidth ← LOCALIZER_WIDTH	String	Full-scale course width of the localizer signal in hundredths of degrees (e.g., 0510 = 5.10 degrees)	degrees (scaled by 100)
glideSlopeAngle ← GLIDE_SLOPE_ANGLE	GlideSlopeAngle	Glide slope angle in hundredths of degrees (e.g., 300 = 3.00 degrees, 350 = 3.50 degrees)	degrees (scaled by 100)	26 values 205 — 2.05 degrees 250 — 2.50 degrees 260 — 2.60 degrees 261 — 2.61 degrees 275 — 2.75 degrees 280 — 2.80 degrees 283 — 2.83 degrees 285 — 2.85 degrees 290 — 2.90 degrees 295 — 2.95 degrees 298 — 2.98 degrees 300 — 3.00 degrees 308 — 3.08 degrees 309 — 3.09 degrees 310 — 3.10 degrees 314 — 3.14 degrees 315 — 3.15 degrees 320 — 3.20 degrees 325 — 3.25 degrees 340 — 3.40 degrees 350 — 3.50 degrees 354 — 3.54 degrees 355 — 3.55 degrees 360 — 3.60 degrees 380 — 3.80 degrees 392 — 3.92 degrees
stationDeclination ← STATION_DECLINATION	StationDeclination	Magnetic variation at the localizer station, expressed as E (east) or W (west) followed by four digits in tenths of degrees (e.g., E0110 = 11.0 degrees east, W0050 = 5.0 degrees west)	degrees (scaled by 10)	42 values E0000 — 0.0 degrees (no variation, east) E0010 — 1.0 degree east E0020 — 2.0 degrees east E0030 — 3.0 degrees east E0040 — 4.0 degrees east E0050 — 5.0 degrees east E0060 — 6.0 degrees east E0070 — 7.0 degrees east E0080 — 8.0 degrees east E0090 — 9.0 degrees east E0100 — 10.0 degrees east E0110 — 11.0 degrees east E0120 — 12.0 degrees east E0130 — 13.0 degrees east E0140 — 14.0 degrees east E0150 — 15.0 degrees east E0160 — 16.0 degrees east E0170 — 17.0 degrees east E0180 — 18.0 degrees east E0190 — 19.0 degrees east E0200 — 20.0 degrees east E0210 — 21.0 degrees east W0000 — 0.0 degrees (no variation, west) W0010 — 1.0 degree west W0020 — 2.0 degrees west W0030 — 3.0 degrees west W0040 — 4.0 degrees west W0050 — 5.0 degrees west W0060 — 6.0 degrees west W0070 — 7.0 degrees west W0080 — 8.0 degrees west W0090 — 9.0 degrees west W0100 — 10.0 degrees west W0110 — 11.0 degrees west W0120 — 12.0 degrees west W0130 — 13.0 degrees west W0140 — 14.0 degrees west W0150 — 15.0 degrees west W0160 — 16.0 degrees west W0170 — 17.0 degrees west W0180 — 18.0 degrees west W0190 — 19.0 degrees west
glideSlopeHeightAtLandingThreshold ← GLIDE_SLOPE_HEIGHT_AT_LANDING_THRESHOLD	String	Height of the glide slope above the runway landing threshold at the threshold crossing point (Threshold Crossing Height, TCH)	feet AGL
glideSlopeElevation ← GLIDE_SLOPE_ELEVATION	String	Elevation of the glide slope antenna above mean sea level, encoded as a 5-digit integer in feet (e.g., 00106 = 106 feet MSL)	feet MSL
supportingFacilityId ← SUPPORTING_FACILITY_ID	String	Identifier of a supporting navaid facility (e.g., DME or VOR) associated with this ILS; null if not applicable
supportingFacilityIcaoCode ← SUPPORTING_FACILITY_ICAO_CODE	String	ICAO region code for the supporting facility; null if no supporting facility is specified
supportingFacilitySectionCode ← SUPPORTING_FACILITY_SECTION_CODE	String	ARINC 424 section code indicating the type of the supporting facility (e.g., VD for VOR/DME, DB for NDB); null if no supporting facility is specified
fileRecordNo ← FILE_RECORD_NO	String	Sequential record number within the ARINC 424 data file, used for traceability and ordering
cycleDate ← CYCLE_DATE	String	AIRAC cycle date in YYMM format indicating the 28-day cycle when this record was last updated (e.g., 1707 = 7th cycle of 2017)