Asterix expansion 062 - Coding rules for Reserved Expansion Field

category: 062

edition: 1.2

date: 2011-06-01

Description of asterix expansion

Compound item (fspec=8 bits)

I062/CST - Contributing Sensors With Local Tracknumbers

Repetitive item, repetition factor 8 bits.

I062/CST/SAC - System Area Code

  • 8 bits [........]
  • raw value

I062/CST/SIC - System Identification Code

  • 8 bits [........]
  • raw value

I062/CST/(spare)

  • 4 bits [....]

I062/CST/TYP

  • 4 bits [....]

  • values:

    0: No detection
    1: Single PSR detection
    2: Single SSR detection
    3: SSR+PSR detection
    4: Single Mode S All-Call
    5: Single Mode S Roll-Call
    6: Mode S All-Call + PSR
    7: Mode S Roll-Call + PSR
    8: ADS-B
    9: WAM

I062/CST/LTN - Local Track Number

  • 16 bits [................]
  • raw value

I062/CSN - Contributing Sensors No Local Tracknumbers

Repetitive item, repetition factor 8 bits.

I062/CSN/SAC - System Area Code

  • 8 bits [........]
  • raw value

I062/CSN/SIC - System Identification Code

  • 8 bits [........]
  • raw value

I062/CSN/(spare)

  • 4 bits [....]

I062/CSN/TYP

  • 4 bits [....]

  • values:

    0: No detection
    1: Single PSR detection
    2: Single SSR detection
    3: SSR+PSR detection
    4: Single Mode S All-Call
    5: Single Mode S Roll-Call
    6: Mode S All-Call + PSR
    7: Mode S Roll-Call + PSR
    8: ADS-B
    9: WAM

I062/TVS - Calculated Track Velocity Relative to System Reference Point

I062/TVS/VX

  • 16 bits [................]
  • signed quantity
  • unit: “m/s”
  • LSB = 1/22 m/s  ≈ 0.25 m/s
  • value  >  =  − 8192 m/s
  • value  <  = 32767/4 m/s

I062/TVS/VY

  • 16 bits [................]
  • signed quantity
  • unit: “m/s”
  • LSB = 1/22 m/s  ≈ 0.25 m/s
  • value  >  =  − 8192 m/s
  • value  <  = 32767/4 m/s
remark
Note:

The y-axis points to the Geographical North at the system reference point as available in the Reserved Expansion Field of category 065.

I062/STS - Supplementary Track Status

Extended item.

I062/STS/FDR - Flight Data Retained

  • 1 bit [.]

  • values:

    0: Flight plan data from active FDPS
    1: Flight plan data retained from no longer active FDPS

I062/STS/(spare)

  • 6 bits [......]

(FX)

  • extension bit

    0: End of data item
    1: Extension into next extent