asterix 011 "Transmission of A-SMGCS Data" edition 1.3 date 2020-05-11 preamble Surveillance data exchange. items 000 "Message Type" definition This Data Item allows for a more convenient handling of the messages at the receiver side by further defining the type of transaction. element 8 table 1: Target reports, flight plan data and basic alerts 2: Manual attachment of flight plan to track 3: Manual detachment of flight plan to track 4: Insertion of flight plan data 5: Suppression of flight plan data 6: Modification of flight plan data 7: Holdbar status 010 "Data Source Identifier" definition Identification of the radar station from which the data are received. group SAC "System Area Code Fixed to Zero" element 8 raw SIC "System Identification Code" element 8 raw remark Note: The SAC is fixed to zero to indicate a data flow local to the airport. 015 "Service Identification" definition Identification of the service provided to one or more users. element 8 raw remark Note: The service identification is allocated by the A-SMGCS 041 "Position in WGS-84 Coordinates" definition Position of a target in WGS-84 Coordinates. group LAT "Latitude in WGS-84 in Two's Complement" element 32 signed quantity 180/2^31 "°" >= -90 <= 90 LON "Longitude in WGS-84 in Two's Complement" element 32 signed quantity 180/2^31 "°" >= -180 < 180 042 "Calculated Position in Cartesian Co-ordinates" definition Calculated position of a target in Cartesian co-ordinates (two's complement form). group X "X-Component" element 16 signed quantity 1 "m" >= -32768 <= 32768 Y "Y-Component" element 16 signed quantity 1 "m" >= -32768 <= 32768 060 "Mode-3/A Code in Octal Representation" definition Track Mode-3/A code converted into Octal Representation. group spare 4 MOD3A "Mode-3/A Reply in Octal Representation" element 12 string octal 090 "Measured Flight Level" definition Last valid and credible flight level used to update the track, in two's complement representation. element 16 signed quantity 1/2^2 "FL" >= -12 <= 1500 remark Note: The criteria to determine the credibility of the flight level are Tracker dependent. Credible means: within reasonable range of change with respect to the previous detection. 092 "Calculated Track Geometric Altitude" definition Calculated geometric vertical distance above mean sea level, not related to barometric pressure. element 16 signed quantity 25/2^2 "ft" >= -1500 <= 150000 remark Note: The source of altitude is identified in bits (SRC) of item I011/170 Track Status. 093 "Calculated Track Barometric Altitude" definition Calculated Barometric Altitude of the track. group QNH "QNH Correction Applied" element 1 table 0: No QNH Correction Applied 1: QNH Correction Applied CTBA "Calculated Track Barometric Altitude" element 15 signed quantity 1/2^2 "FL" >= -15 <= 1500 140 "Time of Track Information" definition Absolute time stamping expressed as UTC. element 24 unsigned quantity 1/2^7 "s" remark Note: The Time of Track Information value is reset to zero each day at midnight. 161 "Track Number" definition Identification of a fusion track (single track number). group spare 1 FTN "Fusion Track Number" element 15 raw 170 "Track Status" definition Status of track. extended MON "" element 1 table 0: Multisensor Track 1: Monosensor Track GBS "" element 1 table 0: Transponder Ground bit not set or unknown 1: Transponder Ground bit set MRH "" element 1 table 0: Barometric altitude (Mode C) more reliable 1: Geometric altitude more reliable SRC "" element 3 table 0: No source 1: GPS 2: 3d radar 3: Triangulation 4: Height from coverage 5: Speed look-up table 6: Default height 7: Multilateration CNF "" element 1 table 0: Confirmed track 1: Tentative track - SIM "" element 1 table 0: Actual Track 1: Simulated track TSE "" element 1 table 0: Default value 1: Track service end (i.e. last message transmitted to the user for the track) TSB "" element 1 table 0: Default value 1: Track service begin (i.e. first message transmitted to the user for the track) FRIFOE "" element 2 table 0: No Mode 4 interrogationt 1: Friendly target 2: Unknown target 3: No reply ME "" element 1 table 0: Default value 1: Military Emergency present in the last report received from a sensor capable of decoding this data MI "" element 1 table 0: End of Data Item 1: Military Identification present in the last report received from a sensor capable of decoding this data - AMA "" element 1 table 0: Track not resulting from amalgamation process 1: Track resulting from amalgamation process SPI "" element 1 table 0: Default value 1: SPI present in the last report received from a sensor capable of decoding this data CST "" element 1 table 0: Default value 1: Age of the last received track update is higher than system dependent threshold (coasting) FPC "" element 1 table 0: Not flight-plan correlated 1: Flight plan correlated AFF "" element 1 table 0: Default value 1: ADS-B data inconsistent with other surveillance information spare 2 - spare 1 PSR "" element 1 table 0: Default value 1: Age of the last received PSR track update is higher than system dependent threshold SSR "" element 1 table 0: Default value 1: Age of the last received SSR track update is higher than system dependent threshold MDS "" element 1 table 0: Default value 1: Age of the last received Mode S track update is higher than system dependent threshold ADS "" element 1 table 0: Default value 1: Age of the last received ADS track update is higher than system dependent threshold SUC "" element 1 table 0: Default value 1: Special Used Code (Mode A codes to be defined in the system to mark a track with special interest) AAC "" element 1 table 0: Default value 1: Assigned Mode A Code Conflict (same individual Mode A Code assigned to another track) - remark Track type and coasting can also be derived from Data Item I011/290 System Track Update Ages 202 "Calculated Track Velocity in Cartesian Coordinates" definition Calculated track velocity expressed in Cartesian co-ordinates. group VX "Vx" element 16 signed quantity 1/2^2 "m/s" >= -8192 <= 8192 VY "Vy" element 16 signed quantity 1/2^2 "m/s" >= -8192 <= 8192 210 "Calculated Acceleration" definition Calculated Acceleration of the target, in two's complement form. group AX "Ax" element 8 signed quantity 1/2^2 "m/s²" >= -31 <= 31 AY "Ay" element 8 signed quantity 1/2^2 "m/s²" >= -31 <= 31 215 "Calculated Rate Of Climb/Descent" definition Calculated rate of Climb/Descent of an aircraft, in two's complement form. element 16 signed quantity 25/2^2 "ft/min" >= -204800 <= 204800 245 "Target Identification" definition Target (aircraft or vehicle) identification in 8 characters. group STI "" element 2 table 0: Callsign or registration downlinked from transponder 1: Callsign not downlinked from transponder 2: Registration not downlinked from transponder spare 6 TID "Target Identification" element 48 string icao remark Note: Characters 1-8 (coded on 6 bits each) defining target identification 270 "Target Size and Orientation" definition Target size defined as length and with of the detected target, and orientation. extended LENGTH "Length" element 7 unsigned quantity 1 "m" - ORIENTATION "Orientation" element 7 unsigned quantity 360/2^7 "°" - WIDTH "Width" element 7 unsigned quantity 1 "m" - remark Note: The orientation gives the direction to which the aircraft nose is pointing, relative to the Geographical North. 290 "System Track Update Ages" definition Ages of the last plot/local track, or the last valid mode-A/mode-C, used to update the system track. compound PSR "Age of the Last Primary Report Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" SSR "Age of the Last Secondary Report Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" MDA "Age of the Last Valid Mode A Report Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" MFL "Age of the Last Valid and Credible Mode C Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" MDS "Age of the Last Mode S Report Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" ADS "Age of the Last ADS Report Used to Update the Track" element 16 unsigned quantity 1/2^2 "s" ADB "Age of the Last ADS-B Report Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" MD1 "Age of the Last Valid Mode 1 Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" MD2 "Age of the Last Valid Mode 2 Used to Update the Track" element 8 unsigned quantity 1/2^2 "s" LOP "Age of the Last Magentic Loop Detection" element 8 unsigned quantity 1/2^2 "s" TRK "Actual Track Age Since First Occurrence" element 8 unsigned quantity 1/2^2 "s" MUL "Age of the Last Multilateration Detection" element 8 unsigned quantity 1/2^2 "s" remark Note: The ages are counted from Data Item I011/140, Time Of Track Information, using the following formula: Age = Time of track information - Time of last (valid) update If the computed age is greater than the maximum value or if the data has never been received, then the corresponding subfield is not sent. 300 "Vehicle Fleet Identification" definition Vehicle fleet identification number. element 8 table 0: Flyco (follow me) 1: ATC equipment maintenance 2: Airport maintenance 3: Fire 4: Bird scarer 5: Snow plough 6: Runway sweeper 7: Emergency 8: Police 9: Bus 10: Tug (push/tow) 11: Grass cutter 12: Fuel 13: Baggage 14: Catering 15: Aircraft maintenance 16: Unknown 310 "Pre-programmed Message" definition Number related to a pre-programmed message that can be transmitted by a vehicle. group TRB "In Trouble" element 1 table 0: Default 1: In Trouble MSG "Message" element 7 table 1: Towing aircraft 2: FOLLOW-ME operation 3: Runway check 4: Emergency operation (fire, medical...) 5: Work in progress (maintenance, birds scarer, sweepers...) 380 "Mode-S / ADS-B Related Data" definition Data specific to Mode-S ADS-B. compound MB "BDS" repetitive 8 element 64 bds ADR "24 Bits Aircraft Address" element 24 raw - COMACAS "Communications/ACAS Capability and Flight Status" group COM "Communications Capability of the Transponder" element 3 table 0: No communications capability (surveillance only) 1: Comm. A and Comm. B capability 2: Comm. A, Comm. B and Uplink ELM 3: Comm. A, Comm. B, Uplink ELM and Downlink ELM 4: Level 5 Transponder capability 5: Not assigned 6: Not assigned 7: Not assigned STAT "Flight Status" element 4 table 0: No alert, no SPI, aircraft airborne 1: No alert, no SPI, aircraft on ground 2: Alert, no SPI, aircraft airborne 3: Alert, no SPI, aircraft on ground 4: Alert, SPI, aircraft airborne or on ground 5: No alert, SPI, aircraft airborne or on ground 6: General Emergency 7: Lifeguard / medical 8: Minimum fuel 9: No communications 10: Unlawful interference spare 1 SSC "Specific Service Capability" element 1 table 0: No 1: Yes ARC "Altitude Reporting Capability" element 1 table 0: 100 ft resolution 1: 25 ft resolution AIC "Aircraft Identification Capability" element 1 table 0: No 1: Yes B1A "BDS 1,0 Bit 16" element 1 raw B1B "BDS 1,0 Bit 37/40" element 4 raw AC "ACAS Operational" element 1 table 0: No 1: Yes MN "Multiple Navigational Aids Operating" element 1 table 0: No 1: Yes DC "Differential Correction" element 1 table 0: Yes 1: No spare 5 - - - ACT "Aircraft Derived Aircraft Type" element 32 string ascii ECAT "Emitter Category" element 8 table 1: Light aircraft <= 7000 kg 2: Reserved 3: 7000 kg < medium aircraft < 136000 kg 4: Reserved 5: 136000 kg <= heavy aircraft 6: Highly manoeuvrable (5g acceleration capability) and high speed (>400 knots cruise) 7: Reserved 8: Reserved 9: Reserved 10: Rotocraft 11: Glider / sailplane 12: Lighter-than-air 13: Unmanned aerial vehicle 14: Space / transatmospheric vehicle 15: Ultralight / handglider / paraglider 16: Parachutist / skydiver 17: Reserved 18: Reserved 19: Reserved 20: Surface emergency vehicle 21: Surface service vehicle 22: Fixed ground or tethered obstruction 23: Reserved 24: Reserved - AVTECH "Available Technologies" group VDL "VDL Mode 4" element 1 table 0: VDL Mode 4 available 1: VDL Mode 4 not available MDS "Mode S" element 1 table 0: Mode S available 1: Mode S not available UAT "UAT" element 1 table 0: UAT available 1: UAT not available spare 5 390 "Flight Plan Related Data" definition All flight plan related information. compound FPPSID "FPPS Identification Tag" group SAC "System Area Code" element 8 raw SIC "System Identity Code" element 8 raw CSN "Callsign" element 56 string ascii IFPSFLIGHTID "IFPS_FLIGHT_ID" group TYP "IFPS Flight ID Type" element 2 table 0: Plan number 1: Unit 1 internal flight number 2: Unit 2 internal flight number 3: Unit 3 internal flight number spare 3 NBR "IFPS Flight ID Number" element 27 raw FLIGHTCAT "Flight Category" group GATOAT "Flight Type" element 2 table 0: Unknown 1: General Air Traffic 2: Operational Air Traffic 3: Not applicable FR1FR2 "Flight Rules" element 2 table 0: Instrument Flight Rules 1: Visual Flight Rules 2: Not applicable 3: Controlled Visual Flight Rules RVSM "RVSM" element 2 table 0: Unknown 1: Approved 2: Exempt 3: Not Approved HPR "Flight Priority" element 1 table 0: Normal Priority Flight 1: High Priority Flight spare 1 TOA "Type of Aircraft" element 32 string ascii WTC "Wake Turbulence Category" element 8 table 76: Light 77: Medium 72: Heavy 74: Super ADEP "Departure Airport" element 32 string ascii ADES "Destination Airport" element 32 string ascii RWY "Runway Designation" element 24 string ascii CFL "Current Cleared Flight Level" element 16 unsigned quantity 1/2^2 "FL" CCP "Current Control Position" group CENTRE "8-bit Group Identification Code" element 8 raw POSITION "8-bit Control Position Identification Code" element 8 raw TOD "Time of Departure" repetitive 8 group TYP "Time Type" element 5 table 0: Scheduled off-block time 1: Estimated off-block time 2: Estimated take-off time 3: Actual off-block time 4: Predicted time at runway hold 5: Actual time at runway hold 6: Actual line-up time 7: Actual take-off time 8: Estimated time of arrival 9: Predicted landing time 10: Actual landing time 11: Actual time off runway 12: Predicted time to gate 13: Actual on-block time DAY "Day" element 2 table 0: Today 1: Yesterday 2: Tomorrow spare 4 HOR "Hours, from 0 to 23" element 5 unsigned integer >= 0 <= 23 spare 2 MIN "Minutes, from 0 to 59" element 6 unsigned integer >= 0 <= 59 AVS "Seconds Available" element 1 table 0: Seconds available 1: Seconds not available spare 1 SEC "Seconds, from 0 to 59" element 6 unsigned integer >= 0 <= 59 AST "Aircraft Stand" element 48 string ascii STS "Stand Status" group EMP "Stand Empty" element 2 table 0: Empty 1: Occupied 2: Unknown AVL "Stand Available" element 2 table 0: Available 1: Not available 2: Unknown spare 4 430 "Phase of Flight" definition Current phase of the flight. element 8 table 0: Unknown 1: On stand 2: Taxiing for departure 3: Taxiing for arrival 4: Runway for departure 5: Runway for arrival 6: Hold for departure 7: Hold for arrival 8: Push back 9: On finals 500 "Estimated Accuracies" definition Overview of all important accuracies (standard deviations). compound APC "Estimated Accuracy Of Track Position (Cartesian)" group X "Estimated Accuracy of the Calculated Position of X Component" element 8 unsigned quantity 1/2^2 "m" Y "Estimated Accuracy of the Calculated Position of Y Component" element 8 unsigned quantity 1/2^2 "m" APW "Estimated Accuracy Of Track Position (WGS84)" group LAT "APW Latitude Component Accuracy" element 16 signed quantity 180/2^31 "°" LON "APW Longitude Component Accuracy" element 16 signed quantity 180/2^31 "°" ATH "Estimated Accuracy Of Track Height" element 16 signed quantity 1/2 "m" AVC "Estimated Accuracy Of Track Velocity (Cartesian)" group X "Estimated Accuracy of the Calculated Velocity of X Component" element 8 unsigned quantity 1/10 "m/s" Y "Estimated Accuracy of the Calculated Velocity of Y Component" element 8 unsigned quantity 1/10 "m/s" ARC "Estimated Accuracy Of Rate Of Climb / Descent" element 16 signed quantity 1/10 "m/s" AAC "Estimated Accuracy Of Acceleration (Cartesian)" group X "Estimated Accuracy Of Acceleration of X Component" element 8 unsigned quantity 1/100 "m/s²" Y "Estimated Accuracy Of Acceleration of Y Component" element 8 unsigned quantity 1/100 "m/s²" 600 "Alert Messages" definition Alert involving the targets indicated in I011/605. group ACK "Alert Acknowleged" element 1 table 0: Alert acknowledged 1: Alert not acknowledged SVR "Alert Severity" element 2 table 0: End fo alert 1: Pre-alarm 2: Severe alert spare 5 AT "Alert Type" element 8 raw AN "Alert Number" element 8 raw 605 "Tracks in Alert" definition List of track numbers of the targets concerned by the alert described in I011/600. repetitive 8 group spare 4 FTN "Fusion Track Number" element 12 raw 610 "Holdbar Status" definition Status of up to sixteen banks of twelve indicators. repetitive 8 group BKN "Bank Number" element 4 raw I1 "Indicator 1" element 1 table 0: Indicator on 1: Indicator off I2 "Indicator 2" element 1 table 0: Indicator on 1: Indicator off I3 "Indicator 3" element 1 table 0: Indicator on 1: Indicator off I4 "Indicator 4" element 1 table 0: Indicator on 1: Indicator off I5 "Indicator 5" element 1 table 0: Indicator on 1: Indicator off I6 "Indicator 6" element 1 table 0: Indicator on 1: Indicator off I7 "Indicator 7" element 1 table 0: Indicator on 1: Indicator off I8 "Indicator 8" element 1 table 0: Indicator on 1: Indicator off I9 "Indicator 9" element 1 table 0: Indicator on 1: Indicator off I10 "Indicator 10" element 1 table 0: Indicator on 1: Indicator off I11 "Indicator 11" element 1 table 0: Indicator on 1: Indicator off I12 "Indicator 12" element 1 table 0: Indicator on 1: Indicator off SP "Special Purpose Field" definition Special Purpose Field explicit sp RE "Reserved Expansion Field" definition Expansion explicit re uap 010 000 015 140 041 042 202 210 060 245 380 161 170 290 430 090 093 092 215 270 390 300 310 500 600 605 610 SP RE