NICT Ionospheric event

●過去４０日間に発生した電離圏イベント履歴（2025/07/15 04:00 更新）
・現在の電離圏概況（携帯版）はこちらを参照してください。
・現在の電離圏概況（簡易版）はこちらを参照してください。
・現在の電離圏概況（詳細版）はこちらを参照してください。
・観測生データ等はこちらを参照してください。
！注意事項！
・時刻は全てJST(UT+09)で表記されています。
・記載されている情報は全て自動生成されており,解析誤差が含まれる場合があります。
・強いスポラディックＥ層が発生した場合Ｅ層のマルチエコーとＦ層を混同し,電離層嵐と誤判定する場合があります。

◎宇宙環境研究室(電離圏ワーキンググループ)からのお知らせ
・アクセスが集中した際等にはサービスを停止させていただく場合があります。
・システムメンテナンス作業/機器故障等に伴いデータ更新に不定期な遅延を生じる場合があります。
・国内4観測地点の電離層観測装置は、以下の日時に新システム「VIPIR2型」に移行しました。
　　　　　稚内　　2016/05/13 00:00
　　　　　国分寺　2017/05/15 18:00
　　　　　山川　　2017/05/10 15:00
　　　　　大宜味　2017/05/17 16:15
　　　移行に伴い送受信機/受信アンテナ/データ処理が刷新されますので、
　　　旧来のイオノグラムとは見掛け/特性の異なる部分があります。
　　　また、自動読取値にも誤差が含まれることがあります。

==================================== 稚内(北海道) ====================================

電離層嵐継続期間	継続時間	中央値との最大差を観測した日時	中央値との最大差[MHz]	foF2[MHz]
2025/06/22 16:30 - 06/22 17:15	0:45	06/22 17:00	+8.1	14.7
2025/06/23 16:15 - 06/23 16:30	0:15	06/23 16:30	+12.4	18.9
2025/07/01 17:00 - 07/01 17:30	0:30	07/01 17:15	+7.9	14.4
2025/07/06 07:15 - 07/06 07:30	0:15	07/06 07:30	+4.3	11.2

＃突発性電離層擾乱／冬季異常イベントは存在しません

スポラディックＥ継続期間	継続時間	Ｅｓ層臨界周波数の最大値を観測した日時	fxEs[MHz]
2025/06/05 09:15 - 06/05 10:15	1:00	06/05 09:15	10.6
2025/06/05 20:45 - 06/05 21:15	0:30	06/05 20:45	11.5
2025/06/05 23:30 - 06/06 01:00	1:30	06/05 23:30	10.5
2025/06/06 06:30 - 06/06 14:15	7:45	06/06 12:30	30.0
2025/06/06 15:00 - 06/06 17:00	2:00	06/06 16:00	30.0
2025/06/06 18:15 - 06/06 19:30	1:15	06/06 19:30	11.7
2025/06/06 21:00 - 06/06 22:45	1:45	06/06 21:45	14.6
2025/06/07 07:30 - 06/07 08:15	0:45	06/07 08:15	13.1
2025/06/07 10:15 - 06/07 11:15	1:00	06/07 10:30	10.9
2025/06/07 13:15 - 06/07 13:45	0:30	06/07 13:45	29.8
2025/06/07 15:45 - 06/07 16:00	0:15	06/07 15:45	9.3
2025/06/08 07:00 - 06/08 11:45	4:45	06/08 11:00	15.2
2025/06/10 09:30 - 06/10 10:00	0:30	06/10 10:00	9.5
2025/06/10 11:00 - 06/10 14:00	3:00	06/10 13:00	20.7
2025/06/10 17:45 - 06/10 18:00	0:15	06/10 18:00	10.5
2025/06/10 18:45 - 06/10 19:45	1:00	06/10 18:45	12.7
2025/06/11 09:15 - 06/11 09:30	0:15	06/11 09:15	8.7
2025/06/12 08:45 - 06/12 09:00	0:15	06/12 09:00	8.4
2025/06/12 16:15 - 06/12 21:45	5:30	06/12 17:30	29.5
2025/06/13 06:30 - 06/13 07:15	0:45	06/13 06:45	10.3
2025/06/13 10:45 - 06/13 13:30	2:45	06/13 12:30	18.5
2025/06/14 13:15 - 06/14 18:45	5:30	06/14 18:15	16.0
2025/06/15 08:30 - 06/15 10:15	1:45	06/15 09:30	15.3
2025/06/16 07:30 - 06/16 08:30	1:00	06/16 07:30	12.7
2025/06/16 14:00 - 06/16 15:30	1:30	06/16 14:30	12.6
2025/06/16 18:15 - 06/16 19:15	1:00	06/16 18:30	9.4
2025/06/17 10:15 - 06/17 11:45	1:30	06/17 11:00	11.6
2025/06/17 19:45 - 06/17 20:15	0:30	06/17 19:45	11.4
2025/06/18 17:15 - 06/18 17:30	0:15	06/18 17:15	12.6
2025/06/18 19:00 - 06/18 19:30	0:30	06/18 19:30	14.9
2025/06/18 20:30 - 06/18 21:45	1:15	06/18 20:30	12.3
2025/06/20 09:15 - 06/20 09:30	0:15	06/20 09:15	10.4
2025/06/20 11:30 - 06/20 11:45	0:15	06/20 11:30	8.4
2025/06/21 08:45 - 06/21 09:30	0:45	06/21 08:45	13.3
2025/06/21 11:30 - 06/21 12:30	1:00	06/21 11:30	10.7
2025/06/21 14:00 - 06/21 14:15	0:15	06/21 14:00	25.8
2025/06/22 12:00 - 06/22 13:45	1:45	06/22 13:30	12.7
2025/06/22 14:45 - 06/22 17:00	2:15	06/22 15:45	19.0
2025/06/23 07:15 - 06/23 08:30	1:15	06/23 07:30	14.7
2025/06/23 12:00 - 06/23 12:15	0:15	06/23 12:15	8.7
2025/06/23 13:45 - 06/23 14:00	0:15	06/23 13:45	10.1
2025/06/23 15:45 - 06/24 00:45	9:00	06/23 19:30	27.5
2025/06/24 08:15 - 06/24 08:30	0:15	06/24 08:30	9.8
2025/06/24 10:30 - 06/24 12:15	1:45	06/24 11:00	12.4
2025/06/25 06:45 - 06/25 07:45	1:00	06/25 07:15	21.5
2025/06/25 09:30 - 06/25 10:45	1:15	06/25 10:00	26.9
2025/06/25 11:45 - 06/25 17:00	5:15	06/25 14:45	17.7
2025/06/25 19:00 - 06/25 21:00	2:00	06/25 19:00	11.1
2025/06/25 22:00 - 06/25 22:45	0:45	06/25 22:30	17.9
2025/06/26 07:45 - 06/26 08:00	0:15	06/26 08:00	9.9
2025/06/26 09:00 - 06/26 10:15	1:15	06/26 09:00	10.8
2025/06/28 07:15 - 06/28 15:00	7:45	06/28 07:15	29.3
2025/06/28 17:45 - 06/28 18:15	0:30	06/28 17:45	11.6
2025/06/28 19:15 - 06/28 20:45	1:30	06/28 19:45	12.6
2025/06/29 08:15 - 06/29 13:15	5:00	06/29 09:15	12.1
2025/06/29 16:00 - 06/29 17:15	1:15	06/29 16:45	11.6
2025/07/01 17:00 - 07/01 18:15	1:15	07/01 17:15	13.1
2025/07/01 21:45 - 07/01 22:45	1:00	07/01 22:15	12.9
2025/07/02 14:00 - 07/02 14:45	0:45	07/02 14:00	14.8
2025/07/02 16:15 - 07/02 17:30	1:15	07/02 16:15	15.7
2025/07/02 18:15 - 07/02 18:45	0:30	07/02 18:15	13.2
2025/07/03 07:00 - 07/03 07:45	0:45	07/03 07:00	9.6
2025/07/03 08:45 - 07/03 09:45	1:00	07/03 09:30	9.9
2025/07/03 16:30 - 07/03 18:15	1:45	07/03 17:15	16.0
2025/07/05 09:45 - 07/05 13:00	3:15	07/05 11:30	17.3
2025/07/05 16:30 - 07/05 17:15	0:45	07/05 17:15	13.5
2025/07/05 19:00 - 07/05 19:45	0:45	07/05 19:45	9.1
2025/07/05 22:15 - 07/05 23:00	0:45	07/05 22:30	10.8
2025/07/06 07:30 - 07/06 14:30	7:00	07/06 11:45	18.1
2025/07/06 16:30 - 07/06 18:30	2:00	07/06 18:00	11.6
2025/07/07 08:45 - 07/07 09:00	0:15	07/07 09:00	9.3
2025/07/07 11:30 - 07/07 12:30	1:00	07/07 12:00	16.0
2025/07/08 08:45 - 07/08 10:00	1:15	07/08 10:00	11.3
2025/07/08 12:15 - 07/08 12:30	0:15	07/08 12:15	10.1
2025/07/08 22:00 - 07/08 22:15	0:15	07/08 22:15	11.6
2025/07/09 22:15 - 07/09 22:30	0:15	07/09 22:30	8.9
2025/07/10 10:45 - 07/10 11:15	0:30	07/10 11:15	11.6
2025/07/11 07:00 - 07/11 11:45	4:45	07/11 08:15	13.4
2025/07/11 12:30 - 07/11 13:45	1:15	07/11 13:00	10.9
2025/07/11 18:15 - 07/11 19:30	1:15	07/11 18:15	13.3
2025/07/12 01:45 - 07/12 03:00	1:15	07/12 02:00	10.9
2025/07/12 06:30 - 07/12 11:30	5:00	07/12 09:45	14.9
2025/07/12 13:15 - 07/12 16:45	3:30	07/12 16:15	24.5
2025/07/12 19:00 - 07/12 20:00	1:00	07/12 19:15	11.1
2025/07/13 15:00 - 07/13 15:15	0:15	07/13 15:00	8.7
2025/07/13 17:45 - 07/13 19:00	1:15	07/13 18:30	11.3
2025/07/13 19:45 - 07/13 20:00	0:15	07/13 19:45	11.3
2025/07/14 05:45 - 07/14 06:15	0:30	07/14 05:45	22.6
2025/07/14 08:15 - 07/14 10:45	2:30	07/14 09:45	13.9
2025/07/14 11:30 - 07/14 11:45	0:15	07/14 11:30	8.6
2025/07/14 12:45 - 07/14 14:00	1:15	07/14 13:30	13.5
2025/07/14 15:00 - 07/14 15:30	0:30	07/14 15:15	9.6
2025/07/14 19:00 - 07/14 20:15	1:15	07/14 19:15	11.9

==================================== 国分寺(東京) ====================================

電離層嵐継続期間	継続時間	中央値との最大差を観測した日時	中央値との最大差[MHz]	foF2[MHz]
2025/06/22 15:45 - 06/22 16:30	0:45	06/22 15:45	+9.1	16.9
2025/07/01 10:45 - 07/01 12:00	1:15	07/01 12:00	+5.1	12.4
2025/07/03 11:45 - 07/03 12:00	0:15	07/03 12:00	+9.1	16.4
2025/07/04 18:00 - 07/04 18:15	0:15	07/04 18:00	+12.5	19.9
2025/07/08 09:30 - 07/08 10:30	1:00	07/08 10:30	+7.7	14.3
2025/07/08 16:15 - 07/08 16:45	0:30	07/08 16:45	+5.8	13.8
2025/07/12 10:30 - 07/12 11:30	1:00	07/12 10:30	+4.9	11.6

＃突発性電離層擾乱／冬季異常イベントは存在しません

スポラディックＥ継続期間	継続時間	Ｅｓ層臨界周波数の最大値を観測した日時	fxEs[MHz]
2025/06/05 10:15 - 06/05 10:30	0:15	06/05 10:30	10.4
2025/06/05 11:15 - 06/05 12:45	1:30	06/05 12:15	13.5
2025/06/06 00:45 - 06/06 01:15	0:30	06/06 01:00	10.5
2025/06/06 09:45 - 06/06 10:00	0:15	06/06 10:00	9.6
2025/06/06 18:45 - 06/06 21:30	2:45	06/06 19:30	13.3
2025/06/06 22:30 - 06/07 01:00	2:30	06/07 00:00	13.3
2025/06/08 08:30 - 06/08 09:30	1:00	06/08 09:30	11.0
2025/06/08 14:45 - 06/08 15:45	1:00	06/08 15:30	16.4
2025/06/08 18:15 - 06/08 19:00	0:45	06/08 18:30	11.7
2025/06/08 21:00 - 06/08 22:15	1:15	06/08 21:00	14.3
2025/06/09 14:45 - 06/09 15:45	1:00	06/09 15:15	16.9
2025/06/09 18:30 - 06/09 19:15	0:45	06/09 18:30	17.6
2025/06/10 19:30 - 06/10 20:45	1:15	06/10 19:30	18.4
2025/06/10 21:30 - 06/10 23:45	2:15	06/10 21:45	11.4
2025/06/11 10:30 - 06/11 12:00	1:30	06/11 12:00	9.7
2025/06/11 19:30 - 06/12 00:00	4:30	06/11 19:30	16.9
2025/06/12 08:30 - 06/12 11:15	2:45	06/12 10:00	14.5
2025/06/12 23:15 - 06/13 00:00	0:45	06/12 23:45	11.6
2025/06/13 06:15 - 06/13 12:15	6:00	06/13 11:45	26.8
2025/06/14 08:15 - 06/14 08:45	0:30	06/14 08:15	8.9
2025/06/14 10:15 - 06/14 10:45	0:30	06/14 10:15	8.6
2025/06/15 00:30 - 06/15 00:45	0:15	06/15 00:30	10.2
2025/06/15 08:45 - 06/15 09:45	1:00	06/15 09:45	14.5
2025/06/15 21:00 - 06/15 21:30	0:30	06/15 21:15	16.0
2025/06/15 22:45 - 06/15 23:30	0:45	06/15 22:45	18.5
2025/06/16 16:15 - 06/16 18:15	2:00	06/16 16:30	13.5
2025/06/16 21:15 - 06/16 21:45	0:30	06/16 21:30	17.2
2025/06/16 23:00 - 06/17 01:45	2:45	06/17 00:00	18.1
2025/06/17 07:45 - 06/17 11:15	3:30	06/17 10:45	13.6
2025/06/17 12:45 - 06/17 15:00	2:15	06/17 14:00	17.7
2025/06/17 18:00 - 06/17 20:00	2:00	06/17 18:45	23.2
2025/06/17 21:45 - 06/17 22:15	0:30	06/17 22:15	9.1
2025/06/18 07:15 - 06/18 08:00	0:45	06/18 08:00	10.6
2025/06/18 11:00 - 06/18 14:30	3:30	06/18 12:30	21.3
2025/06/18 19:00 - 06/18 21:30	2:30	06/18 19:45	17.3
2025/06/18 22:30 - 06/18 23:15	0:45	06/18 22:30	9.3
2025/06/19 08:45 - 06/19 13:45	5:00	06/19 11:00	17.3
2025/06/19 14:30 - 06/19 15:00	0:30	06/19 14:30	9.3
2025/06/19 15:45 - 06/19 17:15	1:30	06/19 16:00	11.1
2025/06/19 22:00 - 06/19 23:00	1:00	06/19 22:30	11.1
2025/06/20 10:30 - 06/20 11:15	0:45	06/20 11:00	10.0
2025/06/20 13:00 - 06/20 15:15	2:15	06/20 15:00	12.7
2025/06/20 17:00 - 06/20 17:15	0:15	06/20 17:00	11.2
2025/06/20 19:00 - 06/20 19:30	0:30	06/20 19:15	9.1
2025/06/21 09:45 - 06/21 10:45	1:00	06/21 09:45	14.6
2025/06/22 07:30 - 06/22 08:45	1:15	06/22 07:45	23.1
2025/06/22 09:30 - 06/22 13:00	3:30	06/22 12:30	11.5
2025/06/22 14:15 - 06/22 20:00	5:45	06/22 15:00	23.3
2025/06/23 09:30 - 06/23 10:30	1:00	06/23 10:00	9.7
2025/06/24 09:45 - 06/24 10:15	0:30	06/24 09:45	13.5
2025/06/25 08:45 - 06/25 09:00	0:15	06/25 09:00	8.4
2025/06/25 09:45 - 06/25 11:00	1:15	06/25 10:45	13.4
2025/06/26 09:30 - 06/26 10:00	0:30	06/26 09:45	10.2
2025/06/27 09:00 - 06/27 12:45	3:45	06/27 10:00	16.4
2025/06/27 15:00 - 06/27 15:15	0:15	06/27 15:15	10.7
2025/06/27 16:00 - 06/28 01:00	9:00	06/27 17:15	27.2
2025/06/28 02:00 - 06/28 03:00	1:00	06/28 02:45	11.2
2025/06/28 05:45 - 06/28 10:00	4:15	06/28 08:30	18.6
2025/06/28 11:45 - 06/28 13:00	1:15	06/28 11:45	15.7
2025/06/28 17:15 - 06/28 18:15	1:00	06/28 17:45	11.1
2025/06/28 19:30 - 06/28 20:00	0:30	06/28 19:30	11.6
2025/06/28 21:00 - 06/28 21:30	0:30	06/28 21:30	9.5
2025/06/29 11:30 - 06/29 12:15	0:45	06/29 12:00	13.8
2025/06/29 14:15 - 06/29 15:00	0:45	06/29 15:00	10.5
2025/06/29 16:00 - 06/29 16:45	0:45	06/29 16:00	9.8
2025/06/29 18:30 - 06/29 18:45	0:15	06/29 18:45	9.5
2025/06/30 10:45 - 06/30 11:30	0:45	06/30 11:15	9.6
2025/06/30 12:45 - 06/30 13:00	0:15	06/30 13:00	10.9
2025/07/01 09:00 - 07/01 17:00	8:00	07/01 09:00	21.5
2025/07/01 19:15 - 07/01 19:45	0:30	07/01 19:15	23.2
2025/07/02 01:15 - 07/02 01:45	0:30	07/02 01:15	11.1
2025/07/02 11:45 - 07/02 12:00	0:15	07/02 12:00	8.4
2025/07/02 13:30 - 07/02 13:45	0:15	07/02 13:45	9.5
2025/07/02 14:45 - 07/02 23:45	9:00	07/02 17:00	27.0
2025/07/03 06:30 - 07/03 12:45	6:15	07/03 11:30	21.8
2025/07/03 13:30 - 07/03 14:15	0:45	07/03 14:00	11.1
2025/07/04 08:00 - 07/04 09:45	1:45	07/04 09:15	17.1
2025/07/04 12:15 - 07/04 16:30	4:15	07/04 14:15	15.9
2025/07/04 17:45 - 07/04 20:15	2:30	07/04 19:00	23.0
2025/07/05 08:30 - 07/05 12:30	4:00	07/05 09:45	18.7
2025/07/05 13:15 - 07/05 16:30	3:15	07/05 15:45	22.7
2025/07/05 18:30 - 07/05 19:00	0:30	07/05 18:30	11.2
2025/07/05 20:30 - 07/05 22:00	1:30	07/05 21:15	14.8
2025/07/06 04:45 - 07/06 07:30	2:45	07/06 05:00	15.8
2025/07/06 09:30 - 07/06 12:15	2:45	07/06 10:30	13.1
2025/07/06 13:00 - 07/06 14:30	1:30	07/06 13:15	11.1
2025/07/06 15:30 - 07/06 20:00	4:30	07/06 18:15	20.8
2025/07/06 21:45 - 07/06 23:00	1:15	07/06 22:45	11.4
2025/07/07 10:30 - 07/07 12:15	1:45	07/07 11:15	16.1
2025/07/07 13:15 - 07/07 13:30	0:15	07/07 13:15	12.1
2025/07/07 17:00 - 07/07 19:45	2:45	07/07 18:00	13.2
2025/07/08 09:15 - 07/08 12:00	2:45	07/08 10:00	15.8
2025/07/08 14:45 - 07/08 20:00	5:15	07/08 19:30	18.7
2025/07/09 00:15 - 07/09 00:30	0:15	07/09 00:30	9.3
2025/07/09 07:15 - 07/09 09:30	2:15	07/09 09:00	11.4
2025/07/09 11:00 - 07/09 11:15	0:15	07/09 11:00	9.5
2025/07/09 12:15 - 07/09 13:30	1:15	07/09 13:15	13.7
2025/07/09 20:45 - 07/10 02:00	5:15	07/10 00:15	16.5
2025/07/10 07:15 - 07/10 09:15	2:00	07/10 07:30	12.6
2025/07/10 11:15 - 07/10 13:45	2:30	07/10 13:00	14.7
2025/07/10 14:30 - 07/10 14:45	0:15	07/10 14:30	8.6
2025/07/10 16:30 - 07/10 23:00	6:30	07/10 17:15	17.4
2025/07/11 00:00 - 07/11 00:15	0:15	07/11 00:00	9.6
2025/07/11 08:30 - 07/11 09:15	0:45	07/11 08:45	12.3
2025/07/11 10:00 - 07/11 13:45	3:45	07/11 11:45	17.3
2025/07/11 15:00 - 07/11 15:30	0:30	07/11 15:15	13.1
2025/07/12 00:45 - 07/12 03:15	2:30	07/12 02:15	13.0
2025/07/12 06:30 - 07/12 11:30	5:00	07/12 09:30	22.0
2025/07/12 13:15 - 07/12 16:15	3:00	07/12 15:30	14.3
2025/07/12 18:30 - 07/12 19:00	0:30	07/12 18:30	13.5
2025/07/14 08:00 - 07/14 10:45	2:45	07/14 10:30	20.1
2025/07/14 16:30 - 07/14 16:45	0:15	07/14 16:45	8.3
2025/07/14 21:00 - 07/14 21:30	0:30	07/14 21:00	16.5

==================================== 山川(鹿児島) ====================================

電離層嵐継続期間	継続時間	中央値との最大差を観測した日時	中央値との最大差[MHz]	foF2[MHz]
2025/06/18 11:45 - 06/18 12:00	0:15	06/18 11:45	+4.2	11.4
2025/06/30 13:30 - 06/30 14:00	0:30	06/30 13:30	+8.5	16.9

＃突発性電離層擾乱／冬季異常イベントは存在しません

スポラディックＥ継続期間	継続時間	Ｅｓ層臨界周波数の最大値を観測した日時	fxEs[MHz]
2025/06/05 07:30 - 06/05 13:30	6:00	06/05 12:00	15.1
2025/06/06 12:45 - 06/06 14:15	1:30	06/06 13:30	10.1
2025/06/06 21:00 - 06/06 22:15	1:15	06/06 21:00	18.0
2025/06/06 23:00 - 06/06 23:15	0:15	06/06 23:00	16.8
2025/06/07 00:15 - 06/07 01:00	0:45	06/07 00:30	14.3
2025/06/07 09:15 - 06/07 09:30	0:15	06/07 09:30	8.1
2025/06/07 20:15 - 06/07 20:45	0:30	06/07 20:30	8.5
2025/06/08 00:45 - 06/08 01:00	0:15	06/08 01:00	8.4
2025/06/08 13:00 - 06/08 15:30	2:30	06/08 13:15	21.4
2025/06/08 19:15 - 06/08 21:00	1:45	06/08 19:15	10.5
2025/06/08 22:45 - 06/09 00:00	1:15	06/08 23:15	14.7
2025/06/09 03:15 - 06/09 03:45	0:30	06/09 03:30	12.9
2025/06/09 09:00 - 06/09 10:30	1:30	06/09 10:15	12.8
2025/06/09 16:00 - 06/09 17:15	1:15	06/09 17:00	9.1
2025/06/10 11:00 - 06/10 12:15	1:15	06/10 11:15	10.6
2025/06/10 21:45 - 06/10 22:15	0:30	06/10 22:00	11.5
2025/06/11 03:15 - 06/11 03:30	0:15	06/11 03:30	12.9
2025/06/11 07:30 - 06/11 08:15	0:45	06/11 07:30	9.3
2025/06/11 09:00 - 06/11 09:30	0:30	06/11 09:00	9.1
2025/06/11 17:00 - 06/11 18:45	1:45	06/11 17:45	12.7
2025/06/11 22:15 - 06/11 22:45	0:30	06/11 22:15	11.4
2025/06/12 00:30 - 06/12 01:00	0:30	06/12 01:00	11.1
2025/06/12 07:00 - 06/12 12:00	5:00	06/12 11:15	17.2
2025/06/13 07:45 - 06/13 12:00	4:15	06/13 10:15	19.3
2025/06/13 13:30 - 06/13 14:30	1:00	06/13 14:15	18.2
2025/06/14 13:00 - 06/14 14:15	1:15	06/14 13:15	12.3
2025/06/14 17:15 - 06/14 17:45	0:30	06/14 17:45	9.7
2025/06/15 11:30 - 06/15 13:30	2:00	06/15 12:15	19.5
2025/06/15 18:15 - 06/15 18:30	0:15	06/15 18:15	9.4
2025/06/15 20:15 - 06/15 20:30	0:15	06/15 20:30	8.8
2025/06/15 22:30 - 06/15 23:15	0:45	06/15 23:15	13.3
2025/06/16 00:45 - 06/16 02:15	1:30	06/16 00:45	15.3
2025/06/16 08:00 - 06/16 08:15	0:15	06/16 08:00	8.6
2025/06/16 09:00 - 06/16 12:30	3:30	06/16 11:15	22.4
2025/06/16 17:00 - 06/16 17:30	0:30	06/16 17:30	8.9
2025/06/16 18:30 - 06/16 19:30	1:00	06/16 18:45	14.5
2025/06/16 20:45 - 06/16 21:30	0:45	06/16 21:30	9.4
2025/06/17 09:00 - 06/17 13:45	4:45	06/17 13:00	30.0
2025/06/18 06:00 - 06/18 06:15	0:15	06/18 06:15	20.1
2025/06/18 07:00 - 06/18 15:45	8:45	06/18 09:30	18.1
2025/06/18 20:00 - 06/18 20:45	0:45	06/18 20:15	19.2
2025/06/18 23:45 - 06/19 00:30	0:45	06/19 00:30	10.5
2025/06/19 09:45 - 06/19 14:15	4:30	06/19 13:00	19.6
2025/06/19 15:30 - 06/19 17:30	2:00	06/19 16:30	14.5
2025/06/19 19:30 - 06/19 19:45	0:15	06/19 19:45	9.2
2025/06/21 00:15 - 06/21 00:45	0:30	06/21 00:45	9.1
2025/06/21 02:30 - 06/21 02:45	0:15	06/21 02:45	11.6
2025/06/21 10:00 - 06/21 10:45	0:45	06/21 10:15	10.9
2025/06/21 13:00 - 06/21 13:30	0:30	06/21 13:00	10.7
2025/06/22 01:45 - 06/22 02:30	0:45	06/22 02:15	10.3
2025/06/22 06:15 - 06/22 13:15	7:00	06/22 10:30	23.9
2025/06/22 18:15 - 06/22 19:00	0:45	06/22 18:30	10.4
2025/06/23 10:45 - 06/23 11:15	0:30	06/23 11:00	10.3
2025/06/24 00:45 - 06/24 01:15	0:30	06/24 01:15	11.6
2025/06/24 08:30 - 06/24 09:15	0:45	06/24 09:15	11.0
2025/06/25 23:15 - 06/26 04:45	5:30	06/26 00:45	12.8
2025/06/26 09:45 - 06/26 10:30	0:45	06/26 10:00	8.9
2025/06/26 19:15 - 06/26 20:30	1:15	06/26 19:30	14.7
2025/06/27 21:45 - 06/28 00:30	2:45	06/28 00:15	17.3
2025/06/28 01:30 - 06/28 03:00	1:30	06/28 03:00	9.4
2025/06/28 07:30 - 06/28 12:45	5:15	06/28 08:00	23.4
2025/06/28 14:15 - 06/28 14:30	0:15	06/28 14:15	9.7
2025/06/28 18:00 - 06/28 19:30	1:30	06/28 18:30	15.8
2025/06/28 21:15 - 06/28 22:45	1:30	06/28 22:00	11.6
2025/06/29 11:15 - 06/29 12:00	0:45	06/29 11:45	9.6
2025/06/29 15:45 - 06/29 16:00	0:15	06/29 16:00	11.1
2025/06/30 10:00 - 06/30 10:15	0:15	06/30 10:00	8.3
2025/06/30 11:00 - 06/30 14:30	3:30	06/30 12:30	21.5
2025/07/01 10:00 - 07/01 11:45	1:45	07/01 10:30	11.6
2025/07/01 13:15 - 07/01 14:00	0:45	07/01 14:00	12.3
2025/07/01 14:45 - 07/01 16:30	1:45	07/01 15:00	19.0
2025/07/01 17:30 - 07/01 18:30	1:00	07/01 17:45	14.6
2025/07/02 03:00 - 07/02 03:45	0:45	07/02 03:15	11.8
2025/07/02 11:45 - 07/02 16:00	4:15	07/02 12:30	17.4
2025/07/02 19:45 - 07/02 20:00	0:15	07/02 20:00	10.9
2025/07/02 21:30 - 07/03 03:45	6:15	07/03 00:45	22.0
2025/07/03 07:15 - 07/03 14:30	7:15	07/03 11:30	24.5
2025/07/04 09:15 - 07/04 10:00	0:45	07/04 09:45	10.9
2025/07/04 11:00 - 07/04 13:30	2:30	07/04 12:00	14.0
2025/07/04 18:00 - 07/04 18:45	0:45	07/04 18:00	13.3
2025/07/04 20:00 - 07/04 22:15	2:15	07/04 22:00	13.5
2025/07/04 23:45 - 07/05 01:00	1:15	07/05 00:30	14.7
2025/07/05 11:00 - 07/05 12:15	1:15	07/05 12:15	9.3
2025/07/05 13:00 - 07/05 14:15	1:15	07/05 13:45	27.2
2025/07/05 16:15 - 07/05 17:00	0:45	07/05 17:00	11.6
2025/07/05 21:00 - 07/05 21:15	0:15	07/05 21:15	8.3
2025/07/06 01:15 - 07/06 01:30	0:15	07/06 01:15	8.8
2025/07/06 06:45 - 07/06 07:15	0:30	07/06 06:45	11.6
2025/07/06 08:30 - 07/06 11:00	2:30	07/06 09:30	19.9
2025/07/06 12:00 - 07/06 15:30	3:30	07/06 14:00	25.1
2025/07/06 18:15 - 07/06 22:00	3:45	07/06 18:30	21.0
2025/07/06 23:00 - 07/07 00:45	1:45	07/07 00:00	14.3
2025/07/07 05:45 - 07/07 06:00	0:15	07/07 05:45	9.8
2025/07/07 08:15 - 07/07 10:00	1:45	07/07 08:30	14.4
2025/07/07 11:45 - 07/07 15:15	3:30	07/07 13:30	20.3
2025/07/07 16:30 - 07/07 17:30	1:00	07/07 17:30	13.9
2025/07/07 22:45 - 07/07 23:30	0:45	07/07 23:15	8.7
2025/07/08 01:00 - 07/08 01:15	0:15	07/08 01:15	9.1
2025/07/08 13:45 - 07/08 14:45	1:00	07/08 14:00	15.0
2025/07/08 18:15 - 07/08 18:45	0:30	07/08 18:45	15.5
2025/07/08 21:00 - 07/08 22:15	1:15	07/08 21:45	13.6
2025/07/09 09:45 - 07/09 14:30	4:45	07/09 10:15	21.3
2025/07/09 16:15 - 07/09 17:15	1:00	07/09 16:45	15.1
2025/07/09 18:00 - 07/09 18:15	0:15	07/09 18:15	8.6
2025/07/09 21:45 - 07/09 22:00	0:15	07/09 22:00	9.6
2025/07/10 17:30 - 07/10 18:00	0:30	07/10 17:45	10.3
2025/07/10 20:30 - 07/10 20:45	0:15	07/10 20:30	9.1
2025/07/10 23:30 - 07/11 00:00	0:30	07/11 00:00	9.0
2025/07/11 09:00 - 07/11 10:15	1:15	07/11 09:30	17.1
2025/07/11 13:00 - 07/11 13:15	0:15	07/11 13:15	15.6
2025/07/11 14:30 - 07/11 14:45	0:15	07/11 14:30	11.6
2025/07/11 22:00 - 07/11 22:30	0:30	07/11 22:15	16.9
2025/07/12 04:30 - 07/12 05:15	0:45	07/12 05:15	12.7
2025/07/12 08:15 - 07/12 09:30	1:15	07/12 08:45	14.9
2025/07/12 10:45 - 07/12 11:30	0:45	07/12 11:15	14.1
2025/07/12 22:00 - 07/12 23:00	1:00	07/12 22:00	12.7
2025/07/13 07:30 - 07/13 08:15	0:45	07/13 07:30	9.1
2025/07/13 09:15 - 07/13 11:00	1:45	07/13 10:45	11.4
2025/07/13 14:00 - 07/13 15:00	1:00	07/13 14:00	10.5
2025/07/13 23:15 - 07/13 23:45	0:30	07/13 23:15	11.2
2025/07/14 16:45 - 07/14 17:15	0:30	07/14 17:15	14.9

==================================== 大宜味(沖縄) ====================================

電離層嵐継続期間	継続時間	中央値との最大差を観測した日時	中央値との最大差[MHz]	foF2[MHz]
2025/06/05 09:15 - 06/05 14:45	5:30	06/05 12:15	+4.6	12.5
2025/06/12 13:15 - 06/13 05:00	15:45	06/12 18:00	+4.9	14.5
2025/06/14 18:15 - 06/14 21:30	3:15	06/14 19:15	-4.7	4.8
2025/07/05 16:15 - 07/05 22:15	6:00	07/05 20:15	+4.2	12.7
2025/07/06 09:30 - 07/06 11:00	1:30	07/06 09:45	+11.3	18.9
2025/07/13 17:00 - 07/14 05:30	12:30	07/13 19:30	-4.0	5.5

ＳＩＤ/冬季異常継続期間	継続時間	中央値との最大差を観測した日時	中央値との最大差[MHz]	fmin[MHz]
2025/06/13 00:00 - 06/13 00:15	0:15	06/13 00:15	4.8	6.4
2025/06/13 03:30 - 06/13 04:45	1:15	06/13 04:00	5.9	7.4

スポラディックＥ継続期間	継続時間	Ｅｓ層臨界周波数の最大値を観測した日時	fxEs[MHz]
2025/06/05 10:00 - 06/05 12:30	2:30	06/05 10:45	16.1
2025/06/06 08:15 - 06/06 09:15	1:00	06/06 08:15	13.8
2025/06/06 22:45 - 06/07 00:15	1:30	06/07 00:15	21.8
2025/06/07 01:00 - 06/07 03:30	2:30	06/07 01:15	21.8
2025/06/07 08:00 - 06/07 08:45	0:45	06/07 08:30	12.8
2025/06/08 10:15 - 06/08 11:00	0:45	06/08 10:15	13.6
2025/06/08 12:00 - 06/08 12:45	0:45	06/08 12:15	11.7
2025/06/08 20:15 - 06/08 20:30	0:15	06/08 20:30	9.0
2025/06/09 00:30 - 06/09 01:45	1:15	06/09 01:30	21.9
2025/06/09 06:15 - 06/09 06:45	0:30	06/09 06:15	18.0
2025/06/09 07:45 - 06/09 13:15	5:30	06/09 11:15	26.7
2025/06/09 14:15 - 06/09 14:45	0:30	06/09 14:15	11.1
2025/06/09 16:30 - 06/09 18:00	1:30	06/09 17:45	13.8
2025/06/09 21:45 - 06/09 22:00	0:15	06/09 21:45	11.5
2025/06/10 00:00 - 06/10 00:30	0:30	06/10 00:30	9.2
2025/06/10 13:15 - 06/10 13:45	0:30	06/10 13:15	9.3
2025/06/11 00:15 - 06/11 02:00	1:45	06/11 00:45	10.3
2025/06/11 07:30 - 06/11 14:00	6:30	06/11 09:15	26.4
2025/06/11 16:30 - 06/11 23:00	6:30	06/11 22:15	12.6
2025/06/12 01:15 - 06/12 05:00	3:45	06/12 03:00	27.6
2025/06/12 11:45 - 06/12 12:00	0:15	06/12 11:45	8.3
2025/06/12 13:00 - 06/12 13:15	0:15	06/12 13:00	9.7
2025/06/13 07:15 - 06/13 08:45	1:30	06/13 07:45	14.3
2025/06/13 09:45 - 06/13 13:15	3:30	06/13 10:45	29.9
2025/06/13 17:15 - 06/13 17:45	0:30	06/13 17:45	9.0
2025/06/14 21:15 - 06/14 21:30	0:15	06/14 21:30	9.5
2025/06/14 23:30 - 06/14 23:45	0:15	06/14 23:30	11.5
2025/06/15 11:00 - 06/15 11:45	0:45	06/15 11:45	10.9
2025/06/15 17:45 - 06/15 18:45	1:00	06/15 17:45	18.3
2025/06/15 21:30 - 06/15 22:45	1:15	06/15 21:45	25.2
2025/06/16 00:45 - 06/16 03:00	2:15	06/16 02:30	12.6
2025/06/16 18:15 - 06/16 18:45	0:30	06/16 18:15	11.7
2025/06/16 19:30 - 06/16 20:30	1:00	06/16 20:15	22.6
2025/06/17 08:15 - 06/17 12:00	3:45	06/17 11:30	26.5
2025/06/18 09:45 - 06/18 10:00	0:15	06/18 09:45	10.7
2025/06/18 20:30 - 06/18 21:45	1:15	06/18 21:30	12.5
2025/06/18 22:45 - 06/18 23:30	0:45	06/18 23:15	11.5
2025/06/19 00:15 - 06/19 00:30	0:15	06/19 00:30	11.3
2025/06/19 07:45 - 06/19 08:45	1:00	06/19 08:30	11.9
2025/06/19 13:15 - 06/19 15:15	2:00	06/19 13:15	14.7
2025/06/19 17:00 - 06/19 17:45	0:45	06/19 17:30	9.5
2025/06/20 00:30 - 06/20 01:30	1:00	06/20 00:30	16.1
2025/06/21 02:00 - 06/21 02:15	0:15	06/21 02:00	11.5
2025/06/21 04:00 - 06/21 04:15	0:15	06/21 04:15	12.4
2025/06/21 08:45 - 06/21 09:45	1:00	06/21 09:45	22.8
2025/06/21 10:30 - 06/21 12:30	2:00	06/21 11:00	11.1
2025/06/21 13:45 - 06/21 14:00	0:15	06/21 13:45	11.7
2025/06/21 15:00 - 06/21 15:30	0:30	06/21 15:00	9.7
2025/06/22 09:45 - 06/22 10:30	0:45	06/22 10:15	13.3
2025/06/22 11:15 - 06/22 11:45	0:30	06/22 11:30	12.8
2025/06/23 05:00 - 06/23 05:30	0:30	06/23 05:00	29.5
2025/06/23 09:30 - 06/23 10:45	1:15	06/23 10:45	22.9
2025/06/23 11:30 - 06/23 12:15	0:45	06/23 12:00	11.6
2025/06/24 07:15 - 06/24 08:30	1:15	06/24 07:15	19.2
2025/06/24 09:15 - 06/24 09:30	0:15	06/24 09:30	11.7
2025/06/24 21:45 - 06/24 22:15	0:30	06/24 21:45	11.3
2025/06/26 00:00 - 06/26 00:15	0:15	06/26 00:00	9.5
2025/06/26 02:00 - 06/26 04:45	2:45	06/26 03:00	17.2
2025/06/26 08:00 - 06/26 14:15	6:15	06/26 10:00	23.7
2025/06/26 15:45 - 06/26 16:30	0:45	06/26 16:00	11.5
2025/06/26 17:30 - 06/27 00:15	6:45	06/26 21:00	17.4
2025/06/27 11:15 - 06/27 12:00	0:45	06/27 11:30	11.7
2025/06/27 13:00 - 06/27 14:15	1:15	06/27 13:45	9.2
2025/06/27 21:15 - 06/28 00:45	3:30	06/27 22:45	23.9
2025/06/28 07:30 - 06/28 09:00	1:30	06/28 08:15	17.4
2025/06/28 10:30 - 06/28 11:00	0:30	06/28 11:00	9.7
2025/06/28 17:30 - 06/28 17:45	0:15	06/28 17:30	10.4
2025/06/28 20:00 - 06/28 20:30	0:30	06/28 20:30	10.3
2025/06/28 21:30 - 06/28 23:30	2:00	06/28 23:15	11.5
2025/06/29 01:00 - 06/29 01:45	0:45	06/29 01:45	11.6
2025/06/29 07:15 - 06/29 13:15	6:00	06/29 07:15	27.9
2025/06/30 13:00 - 06/30 16:45	3:45	06/30 15:15	23.7
2025/07/01 09:45 - 07/01 10:30	0:45	07/01 10:30	9.6
2025/07/01 12:15 - 07/01 14:00	1:45	07/01 12:45	27.6
2025/07/01 15:15 - 07/01 20:45	5:30	07/01 19:15	20.7
2025/07/02 10:00 - 07/02 10:30	0:30	07/02 10:00	10.0
2025/07/02 11:15 - 07/02 11:30	0:15	07/02 11:30	9.1
2025/07/02 14:30 - 07/02 15:00	0:30	07/02 15:00	25.0
2025/07/02 16:30 - 07/02 19:15	2:45	07/02 17:15	11.7
2025/07/02 20:15 - 07/02 20:30	0:15	07/02 20:30	10.3
2025/07/02 21:30 - 07/03 00:00	2:30	07/02 23:30	15.3
2025/07/03 01:15 - 07/03 02:30	1:15	07/03 02:15	12.3
2025/07/03 10:00 - 07/03 12:30	2:30	07/03 10:45	15.7
2025/07/03 14:15 - 07/03 15:15	1:00	07/03 14:30	13.4
2025/07/03 16:15 - 07/03 17:30	1:15	07/03 16:15	10.8
2025/07/04 09:00 - 07/04 11:45	2:45	07/04 11:15	13.1
2025/07/04 12:45 - 07/04 13:45	1:00	07/04 13:00	18.2
2025/07/04 22:00 - 07/05 00:15	2:15	07/05 00:00	17.8
2025/07/05 09:30 - 07/05 10:45	1:15	07/05 09:45	11.5
2025/07/05 12:00 - 07/05 12:30	0:30	07/05 12:00	10.2
2025/07/05 14:00 - 07/05 14:15	0:15	07/05 14:15	12.6
2025/07/06 08:00 - 07/06 09:15	1:15	07/06 08:00	14.5
2025/07/06 10:00 - 07/06 11:30	1:30	07/06 10:45	25.9
2025/07/06 20:00 - 07/06 22:45	2:45	07/06 21:30	25.2
2025/07/07 00:15 - 07/07 00:30	0:15	07/07 00:15	9.5
2025/07/07 01:15 - 07/07 01:45	0:30	07/07 01:30	9.5
2025/07/07 03:00 - 07/07 03:15	0:15	07/07 03:00	9.2
2025/07/07 04:00 - 07/07 08:00	4:00	07/07 05:00	29.7
2025/07/07 08:45 - 07/07 10:30	1:45	07/07 10:00	21.0
2025/07/07 12:00 - 07/07 14:15	2:15	07/07 13:15	12.1
2025/07/07 17:45 - 07/07 18:30	0:45	07/07 18:00	11.1
2025/07/07 19:30 - 07/07 21:00	1:30	07/07 20:15	24.7
2025/07/08 00:30 - 07/08 03:15	2:45	07/08 01:45	20.4
2025/07/08 17:30 - 07/08 19:00	1:30	07/08 18:45	11.1
2025/07/08 22:15 - 07/08 22:45	0:30	07/08 22:15	9.3
2025/07/09 05:00 - 07/09 05:15	0:15	07/09 05:00	10.3
2025/07/09 14:00 - 07/09 14:30	0:30	07/09 14:15	11.6
2025/07/09 18:15 - 07/09 19:30	1:15	07/09 18:45	9.4
2025/07/09 20:15 - 07/09 20:30	0:15	07/09 20:15	9.1
2025/07/10 15:30 - 07/10 17:15	1:45	07/10 16:00	13.1
2025/07/10 18:00 - 07/10 19:00	1:00	07/10 18:45	14.1
2025/07/10 19:45 - 07/10 20:15	0:30	07/10 20:00	11.1
2025/07/10 22:00 - 07/10 22:30	0:30	07/10 22:30	21.5
2025/07/10 23:15 - 07/11 02:00	2:45	07/11 02:00	20.7
2025/07/11 10:00 - 07/11 11:15	1:15	07/11 11:00	14.1
2025/07/12 22:15 - 07/13 00:30	2:15	07/12 22:45	11.6
2025/07/13 08:45 - 07/13 15:15	6:30	07/13 11:30	18.0
2025/07/13 17:45 - 07/13 18:00	0:15	07/13 18:00	8.3
2025/07/14 00:30 - 07/14 01:30	1:00	07/14 01:15	15.0