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Technical Provisions for Mode S Services and Extended Squitter

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C-60 <strong>Technical</strong> <strong>Provisions</strong> <strong>for</strong> <strong>Mode</strong> S <strong>Services</strong> <strong>and</strong> <strong>Extended</strong> <strong>Squitter</strong><br />

Register 0616<br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris<br />

Figure C-2. <strong>Extended</strong> <strong>Squitter</strong> Surface Position<br />

1<br />

2<br />

Purpose: To provide accurate surface position in<strong>for</strong>mation.<br />

3 FORMAT TYPE CODE<br />

4<br />

5<br />

(§C.2.3.1)<br />

6 MOVEMENT<br />

7 Coding Meaning Quantization<br />

8 0 No Movement Info Available<br />

9 MOVEMENT 1 A/C Stopped (GS = 0 knots)<br />

10 (§C.2.3.3.1) 2 0 knots < GS ≤ 0.125 knot<br />

11 3 – 8 0.125 knots < GS ≤ 1.0 knot 0.2700833 km/h<br />

12 9 – 12 1.0 knots < GS ≤ 2.0 knots 0.25 knot steps<br />

13 STATUS <strong>for</strong> Heading/Ground Track (1 = valid, 0 = not valid) 13 – 38 2 knots < GS ≤ 15.0 knots 0.50 knot steps<br />

14 MSB 39 – 93 15.0 knots < GS ≤ 70.0 knots 1.00 knot steps<br />

15 94 – 108 70.0 knots < GS ≤ 100.0 knots 2.00 knot steps<br />

16 HEADING/GROUND TRACK (7 bits) 109 – 123 100.0 knots < GS ≤ 175.0 knots 5.00 knot steps<br />

17 (§C.2.3.3.2) 124 175.0 knots < GS<br />

18 Resolution = 360/128 degrees 125 Reserved <strong>for</strong> A/C Decelerating<br />

19 126 Reserved <strong>for</strong> A/C Acelerating<br />

20 LSB 127 Reserved <strong>for</strong> A/C Backing Up<br />

21 TIME (T) (§C.2.3.2.2)<br />

22 CPR FORMAT (F) (§C.2.3.2.1)<br />

23<br />

24<br />

25<br />

26<br />

27<br />

28<br />

29<br />

MSB<br />

30<br />

31<br />

CPR ENCODED LATITUDE<br />

32<br />

33<br />

34<br />

35<br />

36<br />

37<br />

38<br />

(CPR Surface Format §C.2.6.1 to §C.2.6.10)<br />

39 LSB<br />

40<br />

41<br />

42<br />

43<br />

44<br />

45<br />

46<br />

MSB<br />

47<br />

48<br />

CPR ENCODED LONGITUDE<br />

49<br />

50<br />

51<br />

52<br />

53<br />

54<br />

55<br />

(CPR Surface Format §C.2.6.1 to §C.2.6.10)<br />

56 LSB<br />

Draft<br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris

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