asterix specification

Asterix category 032 - Miniplan Reports to an SDPS

category: 032

edition: 1.1

date: 2020-12-11

Preamble

Surveillance data exchange.

Description of standard data items

I032/010 - Server Identification Tag

definition: Identification of the Server of track information.

Group

I032/010/SAC - System Area Code

Element

bit size: 8

Raw Content

I032/010/SIC - System Identification Code

Element

bit size: 8

Raw Content

Notes:

The up-to-date list of SACs is published on the EUROCONTROL ASTERIX Web Site (http://www.eurocontrol.int/services/system-area-code-list).

In case of message originating from an FPPS, the Server Identification Tag corresponds to the SDPS unit receiving the Miniplan.

In case of message originating from a SDPS, the Server Identification Tag corresponds to the SDPS unit sending the Miniplan.

I032/015 - User Number

definition: Identification of the User of the track data.

Element

bit size: 16

Unsigned integer

Notes:

The User numbers are predefined in the User registration data base of the SDPS Unit to which the User wants to connect.

In case of message originating from an FPPS, the User Number corresponds to the FPPS one.

In case of message originating from an SDPS, the User Number corresponds to the SDPS unit receiving the Miniplan.

I032/018 - Data Source Identification Tag

definition: Identification of the data source (FPPS system) from which the information contained in the message was initially originated.

Group

I032/018/SAC - System Area Code

Element

bit size: 8

Raw Content

I032/018/SIC - System Identification Code

Element

bit size: 8

Raw Content

Note:

The up-to-date list of SACs is published on the EUROCONTROL ASTERIX Web Site (http://www.eurocontrol.int/services/system-area-code-list).

I032/020 - Time of ASTERIX Report Generation

definition: Time of the generation of the ASTERIX category 032 report in the form of elapsed time since last midnight, expressed as UTC.

Element

bit size: 24

Unsigned quantity

LSB = 1/2⁷ s ≈ 7.8125e − 3 s

unit: "s"

Notes:

The Time of ASTERIX Report Generation is reset to zero at every midnight.

This time is determined at an application level (e.g. time at which a message is filled), and not at the communication level (i.e. not the time at which the data-block is sent).

I032/035 - Type of Message

definition: This data item allows for a more convenient handling of the message at the receiver side by further defining the type of transaction.

Group

I032/035/FAMILY

Element

bit size: 4

Values:

1:

Information sent by an FPPS

I032/035/NATURE

Element

bit size: 4

Values:

1:

Flight Plan to track initial correlation

2:

Miniplan update

3:

End of correlation

4:

Miniplan Cancellation

5:

Retained Miniplan

Note:

The composition of the messages is described in the following table. :

Data        Description         FPL to track Initial    End of correlation ($13),
Ref Num                         Correlation ($11),      Miniplan cancellation ($14),
                                Miniplan update ($12)   Retained Miniplan ($15)

I032/010    Server id ...               M                       M
I032/015    User Number                 O                       O
I032/018    Data Source ...             M                       M
I032/020    Time of ...                 M                       M
I032/035    Type of Message             M                       M
I032/040    Track Number            M from FPPS             M from FPPS
                                    X from SDPS             X from SDPS
I032/050    Composed trknum...      M from SDPS             M from SDPS
                                    X from FPPS             X from FDPS
I032/060    Track Mode 3/A              O                       X
I032/400    Callsign                    O                       X
I032/410    Plan Number                 O                       X
I032/420    Flight Category             O                       X
I032/430    Type of Aircraft            O                       X
I032/435    Wake Turbulence ...         O                       X
I032/440    Departure ...               O                       X
I032/450    Destination ...             O                       X
I032/460    Allocated SSR Codes         O                       X
I032/480    Current Cleared FL...       O                       X
I032/490    Current Control Pos...      O                       X
I032/500    Supplementary FD...         O                       X

I032/040 - Track Number

definition: Identification of a track (track number)

Element

bit size: 16

Unsigned integer

I032/050 - Composed Track Number

definition: Identification of a system track.

Extended

I032/050/SUI - System Unit Identification

Element

bit size: 8

Unsigned integer

I032/050/STN - System Track Number

Element

bit size: 15

Unsigned integer

(FX) - extension bit

Notes:

Each Track Number (i.e. either a Master or a Slave Track Number) is composed of a System Unit Identification (i.e. the identification of the SDPS unit processing the) together with the relevant System Track Number (i.e. the number of the track local to the SDPS Unit in question).

The Composed Track Number is used by co-operating SDPS units to uniquely identify a track. It consists of the unit identifier and system track number for each unit involved in the co-operation. The first unit identification identifies the unit that is responsible for the track amalgamation.

The Master Track Number and the possible extensions (Slave Tracks Numbers) are identically composed.

I032/060 - Track Mode 3/A

definition: Mode 3/A code associated to the track

Group

Spare bits: 4

I032/060/MODE3A - (Mode 3/A Code) 4 Digits, Octal Representation

Element

bit size: 12

Octal string (3-bits per char)

I032/400 - Callsign

definition: Callsign (in 7 characters) of an aircraft (provided in the Miniplan).

Element

bit size: 56

Ascii string (8-bits per char)

Note:

Each one of the seven octets contains an ASCII Character. The Callsign is always left adjusted. It contains up to seven upper-case alphanumeric characters, the remaining character positions (if any) are padded with space characters.

I032/410 - Plan Number

definition: The Plan Number is an integer value representing a unique reference to a Flight-plan record within a particular FPPS.

Element

bit size: 16

Unsigned integer

I032/420 - Flight Category

definition: Flight Category.

Group

I032/420/GATOAT

Element

bit size: 2

Values:

0:

Unknown

1:

General Air Traffic

2:

Operational Air Traffic

3:

Not applicable

I032/420/FR1FR2

Element

bit size: 2

Values:

0:

Instrument Flight Rules

1:

Visual Flight rules

2:

Not applicable

3:

Controlled Visual Flight Rules

I032/420/SP3

Element

bit size: 1

Raw Content

I032/420/SP2

Element

bit size: 1

Raw Content

I032/420/SP1

Element

bit size: 1

Raw Content

Spare bits: 1

Note:

The definition of the sub-categories is system dependent and shall be descried in the system ICD.

I032/430 - Type of Aircraft

definition: Type of Aircraft.

Element

bit size: 32

Ascii string (8-bits per char)

Notes:

Each one of the four octets composing the type of aircraft contains an ASCII Character (upper-case alphabetic characters with trailing spaces).

The types of aircraft are defined in the ICAO Document 4444.

I032/435 - Wake Turbulence Category

definition: Wake turbulence category of an aircraft.

Element

bit size: 8

Values:

76:

Light

77:

Medium

72:

Heavy

74:

Super

I032/440 - Departure Aerodrome

definition: Departure Aerodrome

Element

bit size: 32

Ascii string (8-bits per char)

Notes:

Each octet contains one ASCII Character (Upper Case Alphabetic)

The Aerodrome Names are indicated in the ICAO Location Indicators book.

I032/450 - Destination Aerodrome

definition: Departure Aerodrome

Element

bit size: 32

Ascii string (8-bits per char)

Notes:

Each octet contains one ASCII Character (Upper Case Alphabetic).

The Aerodrome Names are indicated in the ICAO Location Indicators book [Ref. 5].

I032/460 - Allocated SSR Codes

definition: List of successive SSR Codes allocated to a flight.

Repetitive

Regular, 1 byte(s) REP field size.

Group

Spare bits: 4

I032/460/OCT1 - 1st Octal Digit

Element

bit size: 3

Raw Content

I032/460/OCT2 - 2nd Octal Digit

Element

bit size: 3

Raw Content

I032/460/OCT3 - 3rd Octal Digit

Element

bit size: 3

Raw Content

I032/460/OCT4 - 4th Octal Digit

Element

bit size: 3

Raw Content

I032/480 - Current Cleared Flight Level

definition: Current Cleared Flight Level

Element

bit size: 16

Unsigned quantity

LSB = 1/2² FL ≈ 0.25 FL

unit: "FL"

>= 0.0

<= 1500.0

I032/490 - Current Control Position

definition: Identification of the Control Position currently controlling a flight.

Group

I032/490/CEN - Centre

Element

bit size: 8

Raw Content

I032/490/POS - Position

Element

bit size: 8

Raw Content

Note:

The Centre and Control Position Identification Codes are implementation specific and have to be agreed upon between communication partners.

I032/500 - Supplementary Flight Data

definition: Flight related data provided by ground based systems.

Compound

I032/500/IFI - IFPS FLIGHT ID

Group

I032/500/IFI/TYP

Element

bit size: 2

Values:

0:

Plan Number

1:

Unit 1 internal flight number

2:

Unit 2 internal flight number

3:

Unit 3 internal flight number

Spare bits: 3

I032/500/IFI/NBR

Element

bit size: 27

Unsigned integer

>= 0.0

<= 9.9999999e7

I032/500/RVP - RVSM & Flight Priority

Group

Spare bits: 5

I032/500/RVP/RVSM

Element

bit size: 2

Values:

0:

Unknown

1:

Approved

2:

Exempt

3:

Not approved

I032/500/RVP/HPR

Element

bit size: 1

Values:

0:

Normal Priority Flight

1:

High Priority Flight

I032/500/RDS - Runway Designation

Group

I032/500/RDS/NU1 - First Number

Element

bit size: 8

Ascii string (8-bits per char)

I032/500/RDS/NU2 - Second Number

Element

bit size: 8

Ascii string (8-bits per char)

I032/500/RDS/LTR - Letter

Element

bit size: 8

Ascii string (8-bits per char)

I032/500/TOD - Time of Departure / Arrival

Repetitive

Regular, 1 byte(s) REP field size.

Group

I032/500/TOD/TYP

Element

bit size: 5

Values:

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

I032/500/TOD/DAY

Element

bit size: 2

Values:

0:

Today

1:

Yesterday

2:

Tomorrow

3:

Invalid

Spare bits: 4

I032/500/TOD/HOR

Element

bit size: 5

Unsigned integer

>= 0.0

<= 23.0

Spare bits: 2

I032/500/TOD/MIN

Element

bit size: 6

Unsigned integer

>= 0.0

<= 59.0

I032/500/TOD/AVS

Element

bit size: 1

Values:

0:

Seconds available

1:

Seconds not available

Spare bits: 1

I032/500/TOD/SEC

Element

bit size: 6

Unsigned integer

>= 0.0

<= 59.0

I032/500/AST - Aircraft Stand

Element

bit size: 48

Ascii string (8-bits per char)

I032/500/STS - Stand Status

Group

I032/500/STS/EMP

Element

bit size: 2

Values:

0:

Empty

1:

Occupied

2:

Unknown

3:

Invalid

I032/500/STS/AVL

Element

bit size: 2

Values:

0:

Available

1:

Not available

2:

Unknown

3:

Invalid

Spare bits: 4

I032/500/SID - Standard Instrument Departure

Element

bit size: 56

Ascii string (8-bits per char)

I032/500/STAR - Standard Instrument Arrival

Element

bit size: 56

Ascii string (8-bits per char)

Notes:

NU1, NU2 and LTR each contain an ASCII character (upper case alphabetic).

For details refer to ICAO Annex 14 Chapter 5 [Ref. 4].

Estimated times are derived from flight plan processing systems. Predicted times are derived by the fusion system based on surveillance data. For definitions see [Ref.4]

Each one of the six Octets contains an ASCII Character. The Aircraft Stand identification is always left adjusted. It contains up to six upper-case alphanumeric characters, the remaining character positions (if any) are padded with space characters.

Each one of the seven Octets contains an ASCII Character. The SID is always left adjusted. It contains up to seven alphanumeric characters, the remaining character positions (if any) are padded with space characters.

Each one of the seven Octets contains an ASCII Character. The STAR is always left adjusted. It contains up to seven alphanumeric characters, the remaining character positions (if any) are padded with space characters.

I032/RE - Reserved Expansion Field

definition: Expansion

Explicit (ReservedExpansion)

User Application Profile

1: I032/010 - Server Identification Tag
2: I032/015 - User Number
3: I032/018 - Data Source Identification Tag
4: I032/035 - Type of Message
5: I032/020 - Time of ASTERIX Report Generation
6: I032/040 - Track Number
7: I032/050 - Composed Track Number
(FX) - Field extension indicator
8: I032/060 - Track Mode 3/A
9: I032/400 - Callsign
10: I032/410 - Plan Number
11: I032/420 - Flight Category
12: I032/440 - Departure Aerodrome
13: I032/450 - Destination Aerodrome
14: I032/480 - Current Cleared Flight Level
(FX) - Field extension indicator
15: I032/490 - Current Control Position
16: I032/430 - Type of Aircraft
17: I032/435 - Wake Turbulence Category
18: I032/460 - Allocated SSR Codes
19: I032/500 - Supplementary Flight Data
Spare
21: I032/RE - Reserved Expansion Field
(FX) - Field extension indicator