NATs
North Atlantic Tracks (NATs) are daily high altitude transatlantic routes between western Europe and the eastern coast of North-America, which provide consistent separation between aircraft. Westward tracks are named incrementally from the beginning of the alphabet (A,B,C...), with the northernmost tracks named first. Similarly, eastward tracks are named incrementally from the end of the alphabet (Z,Y,X...), with the southernmost tracks named first. Daily updates for each direction allow for routing around weather systems and tracking of favourable tailwinds to improve efficiency. The table below shows the current valid NATs and the upcoming published NATs, along with the permissible flight levels in each direction.
| Track | Valid From | Valid To | Route | East Levels | West Levels |
|---|---|---|---|---|---|
| A | 28 May 1130 UTC | 28 May 1900 UTC | 60/20 61/30 61/40 60/50 | - | 310 320 330 350 360 370 |
| A | 29 May 1130 UTC | 29 May 1900 UTC | 60/20 61/30 61/40 60/50 | - | 310 320 330 350 360 370 |
| B | 28 May 1130 UTC | 28 May 1900 UTC | 59/20 60/30 60/40 59/50 | - | 310 320 330 350 360 370 380 390 |
| B | 29 May 1130 UTC | 29 May 1900 UTC | 59/20 60/30 60/40 59/50 | - | 310 320 330 350 360 370 380 390 |
| C | 28 May 1130 UTC | 28 May 1900 UTC | 58/20 59/30 59/40 58/50 | - | 310 320 330 340 350 360 370 380 390 |
| C | 29 May 1130 UTC | 29 May 1900 UTC | 58/20 59/30 59/40 57/50 | - | 310 320 330 340 350 360 370 380 390 |
| D | 28 May 1130 UTC | 28 May 1900 UTC | 57/20 58/30 58/40 57/50 | - | 310 320 330 340 350 360 370 380 390 |
| D | 29 May 1130 UTC | 29 May 1900 UTC | 57/20 58/30 58/40 56/50 | - | 310 320 330 340 350 360 370 380 390 |
| E | 28 May 1130 UTC | 28 May 1900 UTC | 5630/20 5730/30 5730/40 5630/50 | - | 350 360 370 380 390 |
| E | 29 May 1130 UTC | 29 May 1900 UTC | 5630/20 5730/30 5730/40 5530/50 | - | 350 360 370 380 390 |
| F | 28 May 1130 UTC | 28 May 1900 UTC | 56/20 57/30 57/40 56/50 | - | 310 320 330 340 350 360 370 380 390 |
| F | 29 May 1130 UTC | 29 May 1900 UTC | 56/20 57/30 57/40 55/50 | - | 310 320 330 340 350 360 370 380 390 |
| G | 28 May 1130 UTC | 28 May 1900 UTC | 55/20 56/30 56/40 55/50 | - | 310 320 330 340 350 360 370 380 390 |
| G | 29 May 1130 UTC | 29 May 1900 UTC | 55/20 56/30 56/40 54/50 | - | 310 320 330 340 350 360 370 380 390 |
| H | 28 May 1130 UTC | 28 May 1900 UTC | 54/20 55/30 55/40 54/50 | - | 310 320 330 340 350 360 370 380 390 |
| Q | 30 May 0100 UTC | 30 May 0800 UTC | 51/50 53/40 54/30 55/20 | 320 330 340 350 360 370 380 390 400 | - |
| R | 30 May 0100 UTC | 30 May 0800 UTC | 50/50 52/40 53/30 54/20 | 320 330 340 350 360 370 380 390 400 | - |
| S | 30 May 0100 UTC | 30 May 0800 UTC | 49/50 51/40 52/30 53/20 | 320 330 340 350 360 370 380 390 400 | - |
| T | 29 May 0100 UTC | 29 May 0800 UTC | 51/50 52/40 53/30 54/20 | 320 330 340 350 360 370 380 390 400 | - |
| T | 30 May 0100 UTC | 30 May 0800 UTC | 4830/50 5030/40 5130/30 5230/20 | 350 360 370 380 390 | - |
| U | 29 May 0100 UTC | 29 May 0800 UTC | 50/50 51/40 52/30 53/20 | 320 330 340 350 360 370 380 390 400 | - |
| U | 30 May 0100 UTC | 30 May 0800 UTC | 48/50 50/40 51/30 52/20 | 320 330 340 350 360 370 380 390 400 | - |
| V | 29 May 0100 UTC | 29 May 0800 UTC | 4930/50 5030/40 5130/30 5230/20 | 350 360 370 380 390 | - |
| V | 30 May 0100 UTC | 30 May 0800 UTC | 47/50 49/40 50/30 51/20 | 320 330 340 350 360 370 380 390 400 | - |
| W | 29 May 0100 UTC | 29 May 0800 UTC | 49/50 50/40 51/30 52/20 | 320 330 340 350 360 370 380 390 400 | - |
| W | 30 May 0100 UTC | 30 May 0800 UTC | 46/50 48/40 49/30 50/20 | 320 330 340 350 360 370 380 390 400 | - |
| X | 29 May 0100 UTC | 29 May 0800 UTC | 48/50 49/40 50/30 51/20 | 320 330 340 350 360 370 380 390 400 | - |
| X | 30 May 0100 UTC | 30 May 0800 UTC | 42/60 44/50 47/40 48/30 49/20 | 320 330 360 380 400 | - |
| Y | 29 May 0100 UTC | 29 May 0800 UTC | 47/50 48/40 49/30 50/20 | 320 330 340 350 360 370 380 390 400 | - |
| Y | 30 May 0100 UTC | 30 May 0800 UTC | 41/60 41/50 41/40 | 350 370 390 | - |
| Z | 29 May 0100 UTC | 29 May 0800 UTC | 44/50 47/40 48/30 49/20 | 320 330 360 380 400 | - |
| Z | 30 May 0100 UTC | 30 May 0800 UTC | 43/50 46/40 47/30 48/20 48/15 | 320 330 360 380 400 | - |
PACOTS
Pacific Organised Track System (PACOTS) tracks are daily high altitude pacific routes between eastern Asia and the western coast of North-America. Eastward tracks are named numerically (1,2,3...). Similarly, westward tracks are named incrementally from the beginning of the alphabet (A,B,C...). Daily updates for each direction allow for routing around weather systems and tracking of favourable tailwinds to improve efficiency. The table below shows the current valid PACOTS tracks and the upcoming published PACOTS tracks.
| Track | Valid From | Valid To | Route |
|---|---|---|---|
| 1 | 29 May 0700 UTC | 29 May 2100 UTC | 40N160E 43N170E 45N180E 46N170W 46N160W 46N150W 47N140W |
| 11 | 29 May 1000 UTC | 29 May 2100 UTC | 35N150E 37N160E 38N170E 36N180E 32N170W |
| 14 | 29 May 0700 UTC | 29 May 2100 UTC | 36N150E 38N160E 40N170E 42N180E 42N170W 40N160W 39N150W 39N140W 38N130W |
| 2 | 29 May 0700 UTC | 29 May 2100 UTC | 39N160E 42N170E 44N180E 44N170W 43N160W 42N150W 42N140W 41N130W |
| 3 | 29 May 0700 UTC | 29 May 2100 UTC | 36N150E 38N160E 41N170E 43N180E 43N170W 41N160W 41N150W 41N140W 39N130W |
| 8 | 29 May 0700 UTC | 29 May 2100 UTC | 39N160E 42N170E 44N180E 44N170W 43N160W 42N150W 42N140W 41N130W |
| A | 29 May 1900 UTC | 30 May 0800 UTC | 25N170W 27N180E 29N170E 31N160E 33N150E |
| C | 29 May 1900 UTC | 30 May 0800 UTC | 52N140W 53N150W 53N160W 53N170W 53N180E |
| E | 29 May 1900 UTC | 30 May 0800 UTC | 48N140W 50N150W 51N160W 50N170W 48N180E 46N170E 43N160E |
| F | 29 May 1900 UTC | 30 May 0800 UTC | 47N140W 49N150W 50N160W 49N170W 47N180E 45N170E 41N160E 36N150E |
| J | 29 May 0500 UTC | 29 May 2100 UTC | 52N140W 55N150W 57N160W |
| J | 29 May 0500 UTC | 29 May 2100 UTC | 49N140W 51N150W 52N160W 52N170W 53N180E 53N170E |
| M | 29 May 1900 UTC | 30 May 0800 UTC | 52N140W 53N150W 53N160W 53N170W 53N180E |
: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.