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124 lines (86 loc) · 2.29 KB

Label: 20, Preamble: POS

Description

Position report.

Examples

Type 1

POSN38160W077075,,211733,360,OTT,212041,,N42,19689,40,544
POSN37150W076112,,212053,360,,000534,,N45,184100,,360
POSN36160W076283,,213052,360,,005815,,N44,20092,,368
POSN34134W076563,,215052,360,,003641,,N43,22187,,381
POSN44132E021092,,081648,253,NISVA    ,001653,,N37,21747,61,368

Type 2

POSN32249E045047,,082806,380,DEBNI

Type 3

POS,,,,,,,,,,

Acronyms / Codes

Analysis

Decoding Example 1

1) Strip Preamble

POSN38160W077075,,211733,360,OTT,212041,,N42,19689,40,544

becomes

N38160W077075,,211733,360,OTT,212041,,N42,19689,40,544

2) Split by comma (,) to get fields

Field Value Purpose
1 N38160W077075 Coordinates / Position
2
3 211733 Current time (UTC)
4 360 Flight level
5 OTT Waypoint/Fix?
6 212041 ETA to Waypoint (UTC)
7
8 N42
9 19689
10 40
11 544

3) Parse/format field values

3a) Coordinates / Position
Start End Count Attribute Raw Value Formatted Description
1 2 1 latitude_direction N N Latitude Direction (N or S)
2 7 5 latitude 38160 38.160 Latitude
7 8 1 longitude_direction W W Longitude Direction (W or E)
8 14 6 longitude 077075 -77.075 Longitude

Decoding Example 2

1) Strip Preamble

POSN32249E045047,,082806,380,DEBNI

becomes

N32249E045047,,082806,380,DEBNI

2) Split by comma (,) to get fields

Field Value Purpose
1 N32249E045047 Coordinates / Position
2
3 082806 Current time (UTC)
4 380 Flight level
5 DEBNI Waypoint/Fix?

3) Parse/format field values

3a) Coordinates / Position
Start End Count Attribute Raw Value Formatted Description
1 2 1 latitude_direction N N Latitude Direction (N or S)
2 7 5 latitude 32249 32.249 Latitude
7 8 1 longitude_direction E E Longitude Direction (W or E)
8 14 6 longitude 045047 45.047 Longitude