Noisefloor: daily GNSS summary and alerts

31 Oct 2026: 255 cells with severe GPS error (30-day median 231), 3 major events

2026-10-31T23:59:59Z

255 cells with severe GPS error (30-day median 231), out of 24,679 with 5 or more aircraft.

Major: 78% of aircraft degraded near Dubai, 14:00–22:59 UTC, 76 points above usual.
Notable: 13% of aircraft degraded near Nagano, 14:00–18:59 UTC, 13 points above usual.
Major: 39% of aircraft degraded near Ludhiana, 18:00–19:59 UTC, 33 points above usual; 52% of the degraded aircraft were A350s or A380s.
Major: 28% of aircraft degraded near Meerut, 21:00–22:59 UTC, 27 points above usual.
Notable: 23% of aircraft degraded near Gdańsk, 17:00–18:59 UTC, 18 points above usual.

22 minute-level bursts. 3 announced US GPS tests.

Open the map for 31 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

30 Oct 2026: 206 cells with severe GPS error (30-day median 231)

2026-10-30T23:59:59Z

206 cells with severe GPS error (30-day median 231), out of 24,737 with 5 or more aircraft.

Notable: 12% of aircraft degraded near Dubai, 09:00–11:59 UTC, 12 points above usual.
Notable: 17% of aircraft degraded near Jamshedpur, 00:00–03:59 UTC, 17 points above usual.
Notable: 14% of aircraft degraded near Kōchi, 20:00–21:59 UTC, 14 points above usual; 52% of the degraded aircraft were A350s or A380s.
Notable: 24% of aircraft degraded near Kraków, 01:00–02:59 UTC, 18 points above usual.
Notable: 13% of aircraft degraded near Muscat, 20:00–20:59 UTC, 11 points above usual.

11 minute-level bursts. 4 announced US GPS tests.

Open the map for 30 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

29 Oct 2026: 215 cells with severe GPS error (30-day median 231), 1 major event

2026-10-29T23:59:59Z

215 cells with severe GPS error (30-day median 231), out of 24,190 with 5 or more aircraft.

Notable: 25% of aircraft degraded near Ljubljana, 03:00–05:59 UTC, 19 points above usual; 66% of the degraded aircraft were A350s or A380s.
Notable: 17% of aircraft degraded near Bhubaneswar, 14:00–16:59 UTC, 17 points above usual.
Notable: 13% of aircraft degraded near Beirut, 12:00–14:59 UTC, 13 points above usual.
Notable: 13% of aircraft degraded near Nagano, 15:00–17:59 UTC, 13 points above usual.
Notable: 12% of aircraft degraded near Muscat, 20:00–23:59 UTC, 12 points above usual.

20 minute-level bursts. 5 announced US GPS tests.

Open the map for 29 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

28 Oct 2026: 225 cells with severe GPS error (30-day median 231)

2026-10-28T23:59:59Z

225 cells with severe GPS error (30-day median 231), out of 24,119 with 5 or more aircraft.

Notable: 24% of aircraft degraded near Muscat, 17:00–20:59 UTC, 23 points above usual.
Notable: 14% of aircraft degraded near Albuquerque, 03:00–07:59 UTC, 14 points above usual; fits announced test WSMRNM GPS 26-17.
Notable: 24% of aircraft degraded near Hamburg, 04:00–05:59 UTC, 22 points above usual; 81% of the degraded aircraft were A350s or A380s.
Notable: 14% of aircraft degraded near Milan, 02:00–04:59 UTC, 14 points above usual.
Notable: 18% of aircraft degraded near Tirana, 01:00–02:59 UTC, 18 points above usual; 79% of the degraded aircraft were A350s or A380s.

36 minute-level bursts. 5 announced US GPS tests.

Open the map for 28 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

27 Oct 2026: 240 cells with severe GPS error (30-day median 231), 3 major events

2026-10-27T23:59:59Z

240 cells with severe GPS error (30-day median 231), out of 23,911 with 5 or more aircraft.

Major: 27% of aircraft degraded near Albuquerque, 04:00–06:59 UTC, 27 points above usual; fits announced test WSMRNM GPS 26-17.
Notable: 15% of aircraft degraded near Dubai, 12:00–14:59 UTC, 15 points above usual.
Notable: 26% of aircraft degraded near Beijing, 18:00–20:59 UTC, 23 points above usual; 69% of the degraded aircraft were A350s or A380s.
Notable: 16% of aircraft degraded near Stockholm, 06:00–09:59 UTC, 12 points above usual.
Notable: 16% of aircraft degraded near Tianjin, 04:00–04:59 UTC, 16 points above usual; 100% of the degraded aircraft were A350s or A380s.

34 minute-level bursts. 5 announced US GPS tests.

Open the map for 27 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

26 Oct 2026: 231 cells with severe GPS error (30-day median 223), 1 major event

2026-10-26T23:59:59Z

231 cells with severe GPS error (30-day median 223), out of 24,240 with 5 or more aircraft.

Notable: 27% of aircraft degraded near Venice, 00:00–05:59 UTC, 22 points above usual; 60% of the degraded aircraft were A350s or A380s.
Notable: 13% of aircraft degraded near Varanasi, 09:00–12:59 UTC, 13 points above usual; 55% of the degraded aircraft were A350s or A380s.
Notable: 16% of aircraft degraded near Tel Aviv, 01:00–03:59 UTC, 12 points above usual.
Major: 42% of aircraft degraded near Tbilisi, 14:00–14:59 UTC, 32 points above usual; 65% of the degraded aircraft were A350s or A380s.
Notable: 15% of aircraft degraded near Bangkok, 21:00–21:59 UTC, 14 points above usual; 83% of the degraded aircraft were A350s or A380s.

8 minute-level bursts. 3 announced US GPS tests.

Open the map for 26 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

25 Oct 2026: 231 cells with severe GPS error (30-day median 218), 3 major events

2026-10-25T23:59:59Z

231 cells with severe GPS error (30-day median 218), out of 24,333 with 5 or more aircraft.

Major: 44% of aircraft degraded near Vienna, 01:00–07:59 UTC, 39 points above usual; 53% of the degraded aircraft were A350s or A380s.
Major: 56% of aircraft degraded near Beirut, 00:00–02:59 UTC, 54 points above usual.
Notable: 20% of aircraft degraded near Dubai, 00:00–03:59 UTC, 15 points above usual.
Notable: 14% of aircraft degraded near Muscat, 05:00–07:59 UTC, 13 points above usual.
Major: 54% of aircraft degraded near Sochi, 14:00–15:59 UTC, 41 points above usual; 84% of the degraded aircraft were A350s or A380s.

27 minute-level bursts. 2 announced US GPS tests.

Open the map for 25 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

24 Oct 2026: 286 cells with severe GPS error (30-day median 215), 1 major event

2026-10-24T23:59:59Z

286 cells with severe GPS error (30-day median 215), out of 23,907 with 5 or more aircraft.

Notable: 23% of aircraft degraded near Dubai, 10:00–18:59 UTC, 22 points above usual.
Notable: 17% of aircraft degraded near Dubai, 20:00–23:59 UTC, 16 points above usual.
Notable: 30% of aircraft degraded near Sochi, 10:00–12:59 UTC, 24 points above usual; 64% of the degraded aircraft were A350s or A380s.
Major: 42% of aircraft degraded near Stockholm, 04:00–05:59 UTC, 27 points above usual.
Notable: 14% of aircraft degraded near Beirut, 22:00–23:59 UTC, 13 points above usual.

36 minute-level bursts. 2 announced US GPS tests.

Open the map for 24 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

23 Oct 2026: 294 cells with severe GPS error (30-day median 213), 4 major events

2026-10-23T23:59:59Z

294 cells with severe GPS error (30-day median 213), out of 24,045 with 5 or more aircraft.

Major: 41% of aircraft degraded near Dubai, 18:00–23:59 UTC, 38 points above usual.
Major: 45% of aircraft degraded near Doha, 10:00–13:59 UTC, 44 points above usual.
Notable: 18% of aircraft degraded near Abu Dhabi, 15:00–18:59 UTC, 17 points above usual.
Notable: 16% of aircraft degraded near Abu Dhabi, 07:00–08:59 UTC, 13 points above usual.
Major: 33% of aircraft degraded near Bucharest, 09:00–10:59 UTC, 27 points above usual.

58 minute-level bursts. 4 announced US GPS tests.

Open the map for 23 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

22 Oct 2026: 249 cells with severe GPS error (30-day median 212), 3 major events

2026-10-22T23:59:59Z

249 cells with severe GPS error (30-day median 212), out of 23,350 with 5 or more aircraft.

Major: 27% of aircraft degraded near Beirut, 06:00–08:59 UTC, 25 points above usual.
Major: 38% of aircraft degraded near Nicosia, 00:00–04:59 UTC, 35 points above usual.
Major: 65% of aircraft degraded near Nicosia, 22:00–23:59 UTC, 63 points above usual.
Notable: 32% of aircraft degraded near Malmö, 12:00–14:59 UTC, 20 points above usual.
Notable: 15% of aircraft degraded near Ranchi, 19:00–21:59 UTC, 15 points above usual.

33 minute-level bursts. 5 announced US GPS tests.

Open the map for 22 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

21 Oct 2026: 248 cells with severe GPS error (30-day median 211), 5 major events

2026-10-21T23:59:59Z

248 cells with severe GPS error (30-day median 211), out of 23,947 with 5 or more aircraft.

Major: 35% of aircraft degraded near Muscat, 00:00–01:59 UTC, 35 points above usual.
Major: 26% of aircraft degraded near Bandar-e-Abbas, 21:00–22:59 UTC, 26 points above usual.
Major: 34% of aircraft degraded near Beirut, 23:00–23:59 UTC, 26 points above usual.
Notable: 14% of aircraft degraded near Nicosia, 06:00–08:59 UTC, 11 points above usual.
Notable: 11% of aircraft degraded near Cuttack, 06:00–07:59 UTC, 11 points above usual.

18 minute-level bursts. 6 announced US GPS tests.

Open the map for 21 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

20 Oct 2026: 249 cells with severe GPS error (30-day median 205), 5 major events

2026-10-20T23:59:59Z

249 cells with severe GPS error (30-day median 205), out of 23,912 with 5 or more aircraft.

Major: 40% of aircraft degraded near Beirut, 16:00–18:59 UTC, 30 points above usual.
Major: 44% of aircraft degraded near Budapest, 02:00–04:59 UTC, 36 points above usual.
Notable: 20% of aircraft degraded near Kraków, 08:00–12:59 UTC, 17 points above usual.
Notable: 17% of aircraft degraded near Manama, 09:00–13:59 UTC, 16 points above usual.
Notable: 16% of aircraft degraded near Manama, 02:00–05:59 UTC, 16 points above usual.

32 minute-level bursts. 4 announced US GPS tests.

Open the map for 20 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

19 Oct 2026: 212 cells with severe GPS error (30-day median 202), 1 major event

2026-10-19T23:59:59Z

212 cells with severe GPS error (30-day median 202), out of 23,969 with 5 or more aircraft.

Major: 35% of aircraft degraded near Abu Dhabi, 05:00–08:59 UTC, 34 points above usual.
Notable: 14% of aircraft degraded near Manama, 12:00–17:59 UTC, 13 points above usual.
Notable: 14% of aircraft degraded near Bur Said, 06:00–08:59 UTC, 12 points above usual.
Notable: 12% of aircraft degraded near Varanasi, 17:00–18:59 UTC, 12 points above usual.
Notable: 17% of aircraft degraded near Istanbul, 06:00–08:59 UTC, 11 points above usual.

23 minute-level bursts. 2 announced US GPS tests.

Open the map for 19 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

18 Oct 2026: 248 cells with severe GPS error (30-day median 201), 2 major events

2026-10-18T23:59:59Z

248 cells with severe GPS error (30-day median 201), out of 24,044 with 5 or more aircraft.

Notable: 12% of aircraft degraded near Manama, 06:00–17:59 UTC, 12 points above usual.
Major: 54% of aircraft degraded near Constanța, 01:00–03:59 UTC, 29 points above usual.
Notable: 12% of aircraft degraded near Abu Dhabi, 00:00–01:59 UTC, 11 points above usual.
Notable: 12% of aircraft degraded near Varanasi, 13:00–15:59 UTC, 12 points above usual.
Notable: 13% of aircraft degraded near Beijing, 22:00–23:59 UTC, 13 points above usual.

19 minute-level bursts.

Open the map for 18 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

17 Oct 2026: 237 cells with severe GPS error (30-day median 199), 4 major events

2026-10-17T23:59:59Z

237 cells with severe GPS error (30-day median 199), out of 23,684 with 5 or more aircraft.

Notable: 16% of aircraft degraded near Manama, 02:00–18:59 UTC, 16 points above usual.
Notable: 16% of aircraft degraded near Varanasi, 21:00–23:59 UTC, 16 points above usual.
Notable: 21% of aircraft degraded near København, 05:00–06:59 UTC, 16 points above usual.
Notable: 15% of aircraft degraded near Palermo, 02:00–03:59 UTC, 15 points above usual.
Notable: 29% of aircraft degraded near Sochi, 10:00–11:59 UTC, 21 points above usual.

10 minute-level bursts. 2 announced US GPS tests.

Open the map for 17 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

16 Oct 2026: 273 cells with severe GPS error (30-day median 198), 4 major events

2026-10-16T23:59:59Z

273 cells with severe GPS error (30-day median 198), out of 24,143 with 5 or more aircraft.

Major: 30% of aircraft degraded near Doha, 01:00–23:59 UTC, 30 points above usual.
Notable: 17% of aircraft degraded near Budapest, 07:00–14:59 UTC, 16 points above usual.
Major: 67% of aircraft degraded near Belgrade, 22:00–22:59 UTC, 58 points above usual.
Major: 54% of aircraft degraded near Bucharest, 01:00–03:59 UTC, 30 points above usual.
Major: 29% of aircraft degraded near Delhi, 18:00–19:59 UTC, 25 points above usual.

47 minute-level bursts. 4 announced US GPS tests.

Open the map for 16 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

15 Oct 2026: 240 cells with severe GPS error (30-day median 198), 2 major events

2026-10-15T23:59:59Z

240 cells with severe GPS error (30-day median 198), out of 24,321 with 5 or more aircraft.

Notable: 22% of aircraft degraded near Beirut, 05:00–13:59 UTC, 22 points above usual.
Major: 44% of aircraft degraded near El Paso, 06:00–09:59 UTC, 44 points above usual; fits announced test WSMRNM GPS 26-47 REV 2.
Notable: 19% of aircraft degraded near Lucknow, 18:00–21:59 UTC, 14 points above usual.
Notable: 11% of aircraft degraded near Frankfurt, 01:00–02:59 UTC, 11 points above usual.
Notable: 14% of aircraft degraded near Bur Said, 00:00–02:59 UTC, 14 points above usual.

30 minute-level bursts. 7 announced US GPS tests.

Open the map for 15 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

14 Oct 2026: 218 cells with severe GPS error (30-day median 197), 3 major events

2026-10-14T23:59:59Z

218 cells with severe GPS error (30-day median 197), out of 24,398 with 5 or more aircraft.

Major: 42% of aircraft degraded near Beirut, 00:00–03:59 UTC, 36 points above usual.
Major: 62% of aircraft degraded near Belgrade, 02:00–04:59 UTC, 50 points above usual.
Notable: 29% of aircraft degraded near Malmö, 04:00–08:59 UTC, 23 points above usual.
Notable: 19% of aircraft degraded near Abu Dhabi, 00:00–03:59 UTC, 17 points above usual.
Major: 30% of aircraft degraded near Albuquerque, 06:00–07:59 UTC, 30 points above usual; fits announced test WSMRNM GPS 26-47 REV 2.

21 minute-level bursts. 7 announced US GPS tests.

Open the map for 14 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

13 Oct 2026: 211 cells with severe GPS error (30-day median 197), 1 major event

2026-10-13T23:59:59Z

211 cells with severe GPS error (30-day median 197), out of 24,281 with 5 or more aircraft.

Notable: 20% of aircraft degraded near Nicosia, 03:00–05:59 UTC, 18 points above usual.
Major: 30% of aircraft degraded near Beirut, 23:00–23:59 UTC, 30 points above usual.
Notable: 13% of aircraft degraded near Muscat, 15:00–18:59 UTC, 12 points above usual.
Notable: 31% of aircraft degraded near Sochi, 06:00–08:59 UTC, 24 points above usual.
Notable: 15% of aircraft degraded near Muscat, 09:00–10:59 UTC, 15 points above usual.

17 minute-level bursts. 6 announced US GPS tests.

Open the map for 13 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

12 Oct 2026: 239 cells with severe GPS error (30-day median 197), 1 major event

2026-10-12T23:59:59Z

239 cells with severe GPS error (30-day median 197), out of 24,431 with 5 or more aircraft.

Notable: 15% of aircraft degraded near Raipur, 03:00–06:59 UTC, 15 points above usual.
Notable: 28% of aircraft degraded near Lviv, 12:00–15:59 UTC, 23 points above usual.
Major: 40% of aircraft degraded near Sofia, 01:00–03:59 UTC, 29 points above usual.
Notable: 18% of aircraft degraded near Nicosia, 18:00–21:59 UTC, 17 points above usual.
Notable: 12% of aircraft degraded near Cuttack, 00:00–01:59 UTC, 12 points above usual.

19 minute-level bursts. 4 announced US GPS tests.

Open the map for 12 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

11 Oct 2026: 199 cells with severe GPS error (30-day median 197), 1 major event

2026-10-11T23:59:59Z

199 cells with severe GPS error (30-day median 197), out of 24,245 with 5 or more aircraft.

Major: 33% of aircraft degraded near Istanbul, 13:00–17:59 UTC, 27 points above usual.
Notable: 24% of aircraft degraded near Ranchi, 21:00–23:59 UTC, 24 points above usual.
Notable: 14% of aircraft degraded near Nicosia, 01:00–06:59 UTC, 13 points above usual.
Notable: 16% of aircraft degraded near Nicosia, 08:00–10:59 UTC, 12 points above usual.
Notable: 18% of aircraft degraded near Tel Aviv, 11:00–12:59 UTC, 17 points above usual.

27 minute-level bursts. 1 announced US GPS tests.

Open the map for 11 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

10 Oct 2026: 245 cells with severe GPS error (30-day median 197), 3 major events

2026-10-10T23:59:59Z

245 cells with severe GPS error (30-day median 197), out of 24,261 with 5 or more aircraft.

Major: 34% of aircraft degraded near Konya, 16:00–23:59 UTC, 34 points above usual.
Major: 50% of aircraft degraded near Beirut, 00:00–03:59 UTC, 46 points above usual.
Major: 46% of aircraft degraded near Beirut, 04:00–06:59 UTC, 37 points above usual.
Notable: 11% of aircraft degraded near Stockholm, 07:00–15:59 UTC, 10 points above usual.
Notable: 12% of aircraft degraded near Dubai, 10:00–14:59 UTC, 12 points above usual.

31 minute-level bursts. 2 announced US GPS tests.

Open the map for 10 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

9 Oct 2026: 236 cells with severe GPS error (30-day median 197), 4 major events

2026-10-09T23:59:59Z

236 cells with severe GPS error (30-day median 197), out of 24,506 with 5 or more aircraft.

Major: 48% of aircraft degraded near Dubai, 14:00–23:59 UTC, 47 points above usual.
Notable: 24% of aircraft degraded near Jamshedpur, 14:00–17:59 UTC, 24 points above usual.
Major: 59% of aircraft degraded near Bucharest, 01:00–02:59 UTC, 45 points above usual.
Major: 38% of aircraft degraded near Istanbul, 21:00–23:59 UTC, 30 points above usual.
Major: 48% of aircraft degraded near Stockholm, 11:00–13:59 UTC, 28 points above usual.

35 minute-level bursts. 3 announced US GPS tests.

Open the map for 9 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

8 Oct 2026: 223 cells with severe GPS error (30-day median 197)

2026-10-08T23:59:59Z

223 cells with severe GPS error (30-day median 197), out of 24,347 with 5 or more aircraft.

Notable: 17% of aircraft degraded near Bursa, 05:00–08:59 UTC, 14 points above usual.
Notable: 12% of aircraft degraded near Ranchi, 14:00–17:59 UTC, 12 points above usual.
Notable: 25% of aircraft degraded near Tallinn, 08:00–11:59 UTC, 23 points above usual.
Notable: 24% of aircraft degraded near Bursa, 00:00–00:59 UTC, 20 points above usual.
Notable: 24% of aircraft degraded near Amman, 08:00–09:59 UTC, 24 points above usual.

19 minute-level bursts. 5 announced US GPS tests.

Open the map for 8 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

7 Oct 2026: 215 cells with severe GPS error (30-day median 197), 1 major event

2026-10-07T23:59:59Z

215 cells with severe GPS error (30-day median 197), out of 23,872 with 5 or more aircraft.

Major: 38% of aircraft degraded near Nicosia, 05:00–10:59 UTC, 27 points above usual.
Notable: 17% of aircraft degraded near Istanbul, 13:00–20:59 UTC, 13 points above usual.
Notable: 31% of aircraft degraded near Istanbul, 22:00–23:59 UTC, 23 points above usual.
Notable: 32% of aircraft degraded near Damascus, 15:00–16:59 UTC, 21 points above usual.
Notable: 16% of aircraft degraded near Muscat, 18:00–23:59 UTC, 13 points above usual.

39 minute-level bursts. 6 announced US GPS tests.

Open the map for 7 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

6 Oct 2026: 202 cells with severe GPS error (30-day median 197)

2026-10-06T23:59:59Z

202 cells with severe GPS error (30-day median 197), out of 23,846 with 5 or more aircraft.

Notable: 25% of aircraft degraded near Konya, 11:00–19:59 UTC, 21 points above usual.
Notable: 15% of aircraft degraded near Skopje, 00:00–03:59 UTC, 15 points above usual.
Notable: 27% of aircraft degraded near Bursa, 22:00–23:59 UTC, 22 points above usual.
Notable: 23% of aircraft degraded near Tel Aviv, 09:00–10:59 UTC, 18 points above usual.
Notable: 30% of aircraft degraded near Istanbul, 07:00–09:59 UTC, 21 points above usual.

45 minute-level bursts. 6 announced US GPS tests.

Open the map for 6 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

5 Oct 2026: 205 cells with severe GPS error (30-day median 197), 2 major events

2026-10-05T23:59:59Z

205 cells with severe GPS error (30-day median 197), out of 23,861 with 5 or more aircraft.

Notable: 17% of aircraft degraded near Konya, 09:00–21:59 UTC, 15 points above usual.
Major: 38% of aircraft degraded near Thessaloniki, 23:00–23:59 UTC, 32 points above usual.
Notable: 10% of aircraft degraded near Varanasi, 21:00–23:59 UTC, 10 points above usual.
Notable: 14% of aircraft degraded near Bhubaneswar, 14:00–15:59 UTC, 14 points above usual.
Major: 29% of aircraft degraded near Bangkok, 21:00–22:59 UTC, 27 points above usual.

20 minute-level bursts. 5 announced US GPS tests.

Open the map for 5 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

4 Oct 2026: 198 cells with severe GPS error (30-day median 197), 1 major event

2026-10-04T23:59:59Z

198 cells with severe GPS error (30-day median 197), out of 23,905 with 5 or more aircraft.

Notable: 22% of aircraft degraded near Stockholm, 10:00–12:59 UTC, 17 points above usual.
Notable: 22% of aircraft degraded near Istanbul, 09:00–12:59 UTC, 17 points above usual.
Notable: 17% of aircraft degraded near Ankara, 06:00–08:59 UTC, 15 points above usual.
Notable: 12% of aircraft degraded near Muscat, 06:00–08:59 UTC, 12 points above usual.
Notable: 15% of aircraft degraded near Tirana, 02:00–04:59 UTC, 11 points above usual.

23 minute-level bursts. 2 announced US GPS tests.

Open the map for 4 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

3 Oct 2026: 234 cells with severe GPS error (30-day median 197), 2 major events

2026-10-03T23:59:59Z

234 cells with severe GPS error (30-day median 197), out of 23,907 with 5 or more aircraft.

Notable: 21% of aircraft degraded near Dubai, 00:00–08:59 UTC, 21 points above usual.
Notable: 20% of aircraft degraded near Tel Aviv, 10:00–18:59 UTC, 18 points above usual.
Notable: 19% of aircraft degraded near Ranchi, 14:00–18:59 UTC, 19 points above usual.
Notable: 30% of aircraft degraded near Bucharest, 04:00–06:59 UTC, 25 points above usual.
Notable: 13% of aircraft degraded near Damascus, 05:00–07:59 UTC, 12 points above usual.

45 minute-level bursts. 3 announced US GPS tests.

Open the map for 3 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).

2 Oct 2026: 187 cells with severe GPS error (30-day median 197), 2 major events

2026-10-02T23:59:59Z

187 cells with severe GPS error (30-day median 197), out of 23,950 with 5 or more aircraft.

Notable: 24% of aircraft degraded near Dubai, 14:00–23:59 UTC, 23 points above usual.
Notable: 20% of aircraft degraded near Thessaloniki, 02:00–04:59 UTC, 16 points above usual.
Major: 32% of aircraft degraded near Beijing, 20:00–22:59 UTC, 30 points above usual.
Notable: 14% of aircraft degraded near Aurangabad, 18:00–19:59 UTC, 14 points above usual.
Notable: 14% of aircraft degraded near Lviv, 08:00–11:59 UTC, 11 points above usual.

30 minute-level bursts. 3 announced US GPS tests.

Open the map for 2 Oct 2026. From the automatic daily run, not reviewed by a person. Derived from adsb.lol data (ODbL 1.0).