https://manzlytics.com/en/reports/ Manzlytics weekly integrity-drop (NIC) reports consistent with GNSS degradation: the week's three key findings with a deep link to the map for the day in question. en Contains information from adsb.lol contributors (ODbL 1.0). Manzlytics GNSS: informational indicator, no warranty. https://manzlytics.com/en/reports/2026-w42/ https://manzlytics.com/en/reports/2026-w42/ Tue, 20 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.71% (6,469) of 174,561 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.43% to 4.06%. The peak day was 16 October (4.06%), followed by 15 October (3.97%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 9.6%, Damascus 9.1%, Bucharest 8.1%, Sofia 4.9%, Istanbul 3.6%. · The integrity-drop event affecting the most aircraft this week was on 12 October in the Istanbul FIR: 143 unique aircraft, 10 hours (01–10 UTC), 25 cells (event = connected medium/high-level cell-hours). The days of the week were produced with two algorithm versions (1.5.0, 1.6.0); the event rule is identical in both, so events are comparable; only the position-anomaly confidence tiers were computed differently in the two versions. · Position anomalies (spoofing, rule-based, focus region): 79 high/medium-confidence events this week (73 high, 6 medium); busiest day 15 October (34). There are also 28 low-confidence events and 365 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w41/ https://manzlytics.com/en/reports/2026-w41/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.77% (6,603) of 175,140 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.05% to 4.38%. The peak day was 10 October (4.38%), followed by 7 October (4.35%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 9.4%, Damascus 9.1%, Bucharest 6.7%, Sofia 5.6%, Istanbul 5.2%. · The integrity-drop event affecting the most aircraft this week was on 7 October in the Sofia and Istanbul FIRs: 181 unique aircraft, 7 hours (03–09 UTC), 67 cells (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 202 high/medium-confidence events this week (202 high, 0 medium); busiest day 7 October (62). There are also 17 low-confidence events and 461 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w40/ https://manzlytics.com/en/reports/2026-w40/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.05% (5,470) of 179,617 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.60% to 3.43%. The peak day was 3 October (3.43%), followed by 30 September (3.38%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Damascus 9.2%, Ankara 7.9%, Bucharest 5.6%, Sofia 4.4%, Amman 3.6%. · The integrity-drop event affecting the most aircraft this week was on 4 October in the Istanbul FIR: 154 unique aircraft, 8 hours (06–13 UTC), 47 cells (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 218 high/medium-confidence events this week (218 high, 0 medium); busiest day 30 September (46). There are also 18 low-confidence events and 468 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w39/ https://manzlytics.com/en/reports/2026-w39/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.13% (5,644) of 180,203 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.74% to 3.51%. The peak day was 23 September (3.51%), followed by 27 September (3.37%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Damascus 8.5%, Ankara 7.1%, Bucharest 6.5%, Amman 3.9%, Sofia 3.6%. · The integrity-drop event affecting the most aircraft this week was on 21 September in the Istanbul FIR: 141 unique aircraft, 10 hours (00–09 UTC), 28 cells (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 263 high/medium-confidence events this week (263 high, 0 medium); busiest day 25 September (111). There are also 8 low-confidence events and 498 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w38/ https://manzlytics.com/en/reports/2026-w38/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.08% (5,778) of 187,746 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.68% to 3.98%. The peak day was 20 September (3.98%), followed by 19 September (3.37%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Damascus 8.1%, Bucharest 6.5%, Ankara 6.2%, Sofia 4.1%, Istanbul 3.0%. · The integrity-drop event affecting the most aircraft this week was on 20 September in the Istanbul FIR: 252 unique aircraft, 18 hours (06–23 UTC), 37 cells (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 100 high/medium-confidence events this week (100 high, 0 medium); busiest day 20 September (25). There are also 10 low-confidence events and 404 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w37/ https://manzlytics.com/en/reports/2026-w37/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.39% (6,744) of 199,084 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.82% to 3.96%. The peak day was 12 September (3.96%), followed by 11 September (3.90%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Damascus 9.6%, Ankara 7.1%, Bucharest 6.6%, Sofia 4.5%, Istanbul 3.6%. · The integrity-drop event affecting the most aircraft this week was on 12 September in the Sofia, Bucharest, Ankara and Istanbul FIRs: 389 unique aircraft, 22 hours (00–21 UTC), 116 cells (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 241 high/medium-confidence events this week (241 high, 0 medium); busiest day 10 September (64). There are also 20 low-confidence events and 507 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w36/ https://manzlytics.com/en/reports/2026-w36/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.60% (6,709) of 186,526 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.09% to 3.93%. The peak day was 6 September (3.93%), followed by 4 September (3.82%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 10.8%, Damascus 8.3%, Bucharest 5.7%, Istanbul 4.4%, Sofia 4.3%. · The integrity-drop event affecting the most aircraft this week was on 5 September in the Istanbul FIR: 342 unique aircraft, 23 hours (00–22 UTC), 49 cells (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 96 high/medium-confidence events this week (91 high, 5 medium); busiest day 6 September (28). There are also 15 low-confidence events and 506 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w35/ https://manzlytics.com/en/reports/2026-w35/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.58% (7,516) of 210,129 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.11% to 3.90%. The peak day was 30 August (3.90%), followed by 24 August (3.90%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 14.1%, Damascus 7.3%, Bucharest 6.2%, Sofia 4.6%, Istanbul 3.9%. · The integrity-drop event affecting the most aircraft this week was on 26 August in the Istanbul FIR: 275 unique aircraft, 17 hours (06–22 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 150 high/medium-confidence events this week (118 high, 32 medium); busiest day 24 August (32). There are also 81 low-confidence events and 749 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w34/ https://manzlytics.com/en/reports/2026-w34/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.64% (7,421) of 204,072 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.95% to 4.59%. The peak day was 22 August (4.59%), followed by 21 August (3.92%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 20.7%, Damascus 7.8%, Istanbul 5.8%, Bucharest 5.6%, Sofia 4.7%. · The integrity-drop event affecting the most aircraft this week was on 22 August in the Istanbul FIR: 495 unique aircraft, 23 hours (01–23 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 245 high/medium-confidence events this week (216 high, 29 medium); busiest day 19 August (110). There are also 87 low-confidence events and 692 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w32/ https://manzlytics.com/en/reports/2026-w32/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.67% (7,204) of 196,066 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.06% to 4.63%. The peak day was 4 August (4.63%), followed by 6 August (4.23%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 19.4%, Damascus 13.7%, Amman 6.5%, Bucharest 4.1%, Nicosia 4.0%. · The integrity-drop event affecting the most aircraft this week was on 3 August in the Ankara FIR: 189 unique aircraft, 17 hours (00–16 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · Position anomalies (spoofing, rule-based, focus region): 191 high/medium-confidence events this week (149 high, 42 medium); busiest day 7 August (43). There are also 76 low-confidence events and 580 jumps overlapping with low integrity; jumps coinciding with integrity loss are not counted in this headline figure; the cause is not stated. Indicator only: it states no cause. https://manzlytics.com/en/reports/2026-w31/ https://manzlytics.com/en/reports/2026-w31/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 4.05% (7,680) of 189,451 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.17% to 5.42%. The peak day was 1 August (5.42%), followed by 31 July (4.78%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 17.0%, Damascus 14.2%, Amman 7.4%, Nicosia 5.7%, Bucharest 4.9%. · The integrity-drop event affecting the most aircraft this week was on 1 August in the Istanbul FIR: 226 unique aircraft, 16 hours (00–15 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w30/ https://manzlytics.com/en/reports/2026-w30/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.38% (6,815) of 201,869 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.96% to 3.88%. The peak day was 21 July (3.88%), followed by 24 July (3.65%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 12.4%, Damascus 11.0%, Amman 4.8%, Bucharest 4.7%, Sofia 4.0%. · The integrity-drop event affecting the most aircraft this week was on 22 July in the Ankara FIR: 246 unique aircraft, 19 hours (00–18 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w29/ https://manzlytics.com/en/reports/2026-w29/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.81% (7,725) of 202,637 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.46% to 4.28%. The peak day was 17 July (4.28%), followed by 19 July (3.92%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 13.0%, Damascus 11.0%, Bucharest 6.2%, Amman 5.5%, Sofia 4.9%. · The integrity-drop event affecting the most aircraft this week was on 19 July in the Istanbul FIR: 320 unique aircraft, 16 hours (00–15 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w28/ https://manzlytics.com/en/reports/2026-w28/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.33% (6,670) of 200,170 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.00% to 3.70%. The peak day was 11 July (3.70%), followed by 8 July (3.65%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 11.6%, Damascus 9.3%, Bucharest 5.2%, Sofia 4.4%, Istanbul 3.3%. · The integrity-drop event affecting the most aircraft this week was on 11 July in the Istanbul FIR: 288 unique aircraft, 14 hours (10–23 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w27/ https://manzlytics.com/en/reports/2026-w27/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.14% (6,257) of 199,537 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.74% to 3.40%. The peak day was 2 July (3.40%), followed by 5 July (3.24%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 11.8%, Damascus 9.9%, Bucharest 4.9%, Sofia 3.8%, Amman 3.5%. · The integrity-drop event affecting the most aircraft this week was on 29 June in the Istanbul FIR: 229 unique aircraft, 24 hours (00–23 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w26/ https://manzlytics.com/en/reports/2026-w26/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.12% (5,021) of 161,138 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.43% to 3.84%. The peak day was 25 June (3.84%), followed by 26 June (3.77%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 12.2%, Damascus 7.7%, Bucharest 3.9%, Amman 3.8%, Sofia 3.5%. · The integrity-drop event affecting the most aircraft this week was on 28 June in the Ankara FIR: 142 unique aircraft, 11 hours (09–19 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w25/ https://manzlytics.com/en/reports/2026-w25/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 3.57% (6,418) of 179,885 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 2.67% to 4.68%. The peak day was 18 June (4.68%), followed by 17 June (4.43%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 12.0%, Amman 6.0%, Damascus 5.9%, Bucharest 5.0%, Sofia 4.4%. · The integrity-drop event affecting the most aircraft this week was on 17 June in the Istanbul FIR: 139 unique aircraft, 7 hours (06–12 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w24/ https://manzlytics.com/en/reports/2026-w24/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 4.23% (6,739) of 159,385 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 1.33% to 6.35%. The peak day was 8 June (6.35%), followed by 14 June (4.59%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 22.8%, Amman 10.7%, Damascus 10.0%, Nicosia 6.2%, Bucharest 5.7%. · The integrity-drop event affecting the most aircraft this week was on 12 June in the Ankara FIR: 222 unique aircraft, 11 hours (07–17 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w22/ https://manzlytics.com/en/reports/2026-w22/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 4.97% (8,046) of 161,732 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 3.92% to 6.71%. The peak day was 26 May (6.71%), followed by 25 May (5.68%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Damascus 25.6%, Ankara 22.5%, Amman 17.9%, Nicosia 9.7%, Bucharest 5.3%. · The integrity-drop event affecting the most aircraft this week was on 25 May in the Amman FIR: 218 unique aircraft, 13 hours (03–15 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”. https://manzlytics.com/en/reports/2026-w21/ https://manzlytics.com/en/reports/2026-w21/ Thu, 15 Oct 2026 00:00:00 GMT In the regional scope (Türkiye and neighbours), 5.35% (8,161) of 152,646 aircraft-hours over seven days showed degraded navigation integrity; the daily rate ranged from 4.69% to 5.72%. The peak day was 23 May (5.72%), followed by 24 May (5.63%). These data do not identify the cause of any rise or fall. · Share of aircraft affected by region (weekly, FIRs with sufficient observation volume): Ankara 26.8%, Amman 19.6%, Nicosia 10.4%, Cairo 6.2%, Bucharest 5.8%. · The integrity-drop event affecting the most aircraft this week was on 23 May in the Amman FIR: 241 unique aircraft, 17 hours (03–19 UTC) (event = connected medium/high-level cell-hours). All days of the week were produced with the same algorithm version (1.5.0), so the events are comparable with one another. · No position-anomaly (spoofing) data for the whole of this week: the historical spoofing series starts on 2026-08-01 and covers the focus region only. “No data” does not mean “calm”.