EISN 20251217: 80 Daily Ap 20251216: 11 Flux 20251216: 116.7 Estimated SSN 20251216: 84 3-hour Kp 20251217 06Z-08Z: 3.00 3-hour Ap 20251217 06Z-08Z: 15 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-16T22:00:00 : 116 Estimated #SSN from #SFI: 2025-12-16T22:00:00 : 83 Estimated Kp: 2025-12-17T06:20:00 : 1.33 EISN (observed SSN): 2025-12-17T00:00:00 : 83 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251217: 83 Daily Ap 20251216: 11 Flux 20251216: 116.7 Estimated SSN 20251216: 84 3-hour Kp 20251217 03Z-05Z: 1.67 3-hour Ap 20251217 03Z-05Z: 6 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-16T22:00:00 : 116 Estimated #SSN from #SFI: 2025-12-16T22:00:00 : 83 Estimated Kp: 2025-12-17T03:18:00 : 0.33 EISN (observed SSN): 2025-12-17T00:00:00 : 83 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 73 Daily Ap 20251216: 11 Flux 20251216: 116.7 Estimated SSN 20251216: 84 3-hour Kp 20251217 00Z-02Z: 2.33 3-hour Ap 20251217 00Z-02Z: 9 Source: https://github.com/jj1bdx/gossn2

Solar activity information will be posted in this account for every three hours. See https://github.com/jj1bdx/gossn and https://github.com/jj1bdx/gossn2 for the code. This account will not accept any command messages.

10.7cm #Solar Flux Index (SFI): 2025-12-16T22:00:00 : 116 Estimated #SSN from #SFI: 2025-12-16T22:00:00 : 83 Estimated Kp: 2025-12-17T00:20:00 : 0.67 EISN (observed SSN): 2025-12-16T00:00:00 : 73 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 73 Daily Ap 20251216: 10 Flux 20251216: 116.7 Estimated SSN 20251216: 84 3-hour Kp 20251216 21Z-23Z: 2.00 3-hour Ap 20251216 21Z-23Z: 7 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-16T20:00:00 : 117 Estimated #SSN from #SFI: 2025-12-16T20:00:00 : 85 Estimated Kp: 2025-12-16T21:18:00 : 0 EISN (observed SSN): 2025-12-16T00:00:00 : 74 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 73 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 18Z-20Z: 2.33 3-hour Ap 20251216 18Z-20Z: 9 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T18:19:00 : 1 EISN (observed SSN): 2025-12-16T00:00:00 : 73 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 73 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 15Z-17Z: 2.33 3-hour Ap 20251216 15Z-17Z: 9 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T15:19:00 : 2.67 EISN (observed SSN): 2025-12-16T00:00:00 : 73 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 73 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 12Z-14Z: 1.67 3-hour Ap 20251216 12Z-14Z: 6 Source: https://github.com/jj1bdx/gossn2

In Grid PM95tp, Setagaya City, Tokyo, Japan: next sunrise: 2025-12-16T21:44:53Z next sunset: 2025-12-17T07:30:06Z Source code: https://gist.github.com/jj1bdx/a274b20fc213cdf056e3a7fbc0556e45

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T12:21:00 : 0 EISN (observed SSN): 2025-12-16T00:00:00 : 72 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 66 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 09Z-11Z: 1.67 3-hour Ap 20251216 09Z-11Z: 6 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T09:19:00 : 0.33 EISN (observed SSN): 2025-12-16T00:00:00 : 66 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 59 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 06Z-08Z: 1.67 3-hour Ap 20251216 06Z-08Z: 6 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T06:23:00 : 1 EISN (observed SSN): 2025-12-16T00:00:00 : 59 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251216: 59 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 03Z-05Z: 2.00 3-hour Ap 20251216 03Z-05Z: 7 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T03:20:00 : 0 EISN (observed SSN): 2025-12-16T00:00:00 : 59 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 72 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251216 00Z-02Z: 3.00 3-hour Ap 20251216 00Z-02Z: 15 Source: https://github.com/jj1bdx/gossn2

Solar activity information will be posted in this account for every three hours. See https://github.com/jj1bdx/gossn and https://github.com/jj1bdx/gossn2 for the code. This account will not accept any command messages.

10.7cm #Solar Flux Index (SFI): 2025-12-15T22:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T22:00:00 : 86 Estimated Kp: 2025-12-16T00:19:00 : 2 EISN (observed SSN): 2025-12-15T00:00:00 : 72 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 72 Daily Ap 20251215: 5 Flux 20251215: 118.3 Estimated SSN 20251215: 87 3-hour Kp 20251215 21Z-23Z: 0.67 3-hour Ap 20251215 21Z-23Z: 3 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-15T20:00:00 : 118 Estimated #SSN from #SFI: 2025-12-15T20:00:00 : 86 Estimated Kp: 2025-12-15T21:21:00 : 0 EISN (observed SSN): 2025-12-15T00:00:00 : 70 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 70 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 18Z-20Z: 0.67 3-hour Ap 20251215 18Z-20Z: 3 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T18:19:00 : 0 EISN (observed SSN): 2025-12-15T00:00:00 : 70 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 70 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 15Z-17Z: 1.33 3-hour Ap 20251215 15Z-17Z: 5 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T15:20:00 : 0 EISN (observed SSN): 2025-12-15T00:00:00 : 70 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 70 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 12Z-14Z: 1.67 3-hour Ap 20251215 12Z-14Z: 6 Source: https://github.com/jj1bdx/gossn2

In Grid PM95tp, Setagaya City, Tokyo, Japan: next sunrise: 2025-12-15T21:44:15Z next sunset: 2025-12-16T07:29:44Z Source code: https://gist.github.com/jj1bdx/a274b20fc213cdf056e3a7fbc0556e45

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T12:20:00 : 0 EISN (observed SSN): 2025-12-15T00:00:00 : 70 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 81 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 09Z-11Z: 0.33 3-hour Ap 20251215 09Z-11Z: 2 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T09:21:00 : 0 EISN (observed SSN): 2025-12-15T00:00:00 : 74 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 70 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 06Z-08Z: 1.00 3-hour Ap 20251215 06Z-08Z: 4 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T06:19:00 : 0.67 EISN (observed SSN): 2025-12-15T00:00:00 : 70 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251215: 70 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 03Z-05Z: 0.00 3-hour Ap 20251215 03Z-05Z: 0 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T03:21:00 : 0 EISN (observed SSN): 2025-12-15T00:00:00 : 70 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251214: 72 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251215 00Z-02Z: 0.67 3-hour Ap 20251215 00Z-02Z: 3 Source: https://github.com/jj1bdx/gossn2

Solar activity information will be posted in this account for every three hours. See https://github.com/jj1bdx/gossn and https://github.com/jj1bdx/gossn2 for the code. This account will not accept any command messages.

10.7cm #Solar Flux Index (SFI): 2025-12-14T22:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T22:00:00 : 88 Estimated Kp: 2025-12-15T00:22:00 : 0 EISN (observed SSN): 2025-12-14T00:00:00 : 72 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251214: 72 Daily Ap 20251214: 6 Flux 20251214: 118.8 Estimated SSN 20251214: 88 3-hour Kp 20251214 21Z-23Z: 0.00 3-hour Ap 20251214 21Z-23Z: 0 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-14T20:00:00 : 119 Estimated #SSN from #SFI: 2025-12-14T20:00:00 : 88 Estimated Kp: 2025-12-14T21:20:00 : 0 EISN (observed SSN): 2025-12-14T00:00:00 : 72 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251214: 72 Daily Ap 20251213: 15 Flux 20251213: 122.1 Estimated SSN 20251213: 93 3-hour Kp 20251214 18Z-20Z: 1.33 3-hour Ap 20251214 18Z-20Z: 5 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-13T22:00:00 : 120 Estimated #SSN from #SFI: 2025-12-13T22:00:00 : 90 Estimated Kp: 2025-12-14T18:19:00 : 0 EISN (observed SSN): 2025-12-14T00:00:00 : 72 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251214: 72 Daily Ap 20251213: 15 Flux 20251213: 122.1 Estimated SSN 20251213: 93 3-hour Kp 20251214 15Z-17Z: 0.67 3-hour Ap 20251214 15Z-17Z: 3 Source: https://github.com/jj1bdx/gossn2

10.7cm #Solar Flux Index (SFI): 2025-12-13T22:00:00 : 120 Estimated #SSN from #SFI: 2025-12-13T22:00:00 : 90 Estimated Kp: 2025-12-14T15:21:00 : 0 EISN (observed SSN): 2025-12-14T00:00:00 : 72 SFI/Kp source: NOAA SWPC EISN source: WDC-SILSO, Royal Observatory of Belgium, Brussels

EISN 20251214: 72 Daily Ap 20251213: 15 Flux 20251213: 122.1 Estimated SSN 20251213: 93 3-hour Kp 20251214 12Z-14Z: 1.00 3-hour Ap 20251214 12Z-14Z: 4 Source: https://github.com/jj1bdx/gossn2