Tohban Report 9/27-10/04 Important Note: Tohban Report originally incomplete due to downlink station issues. An asterisk (*) denotes newly downloaded data. ------------------------------------------------------ Geomagnetic Activity Overview 2020-09-27/03:00-04:00 Small substorm, AE~750 nT 2020-09-27/15:00-18:00 Periodic Activations, AE max ~1000nT, AE min ~500nT 2020-09-27/19:00-22:00 Periodic Activations, AE min ~800nT, AE max ~1500 2020-09-27/22:00-24:00 AE min ~500nT, DST min -81 2020-09-28/02:00-05:00 AE Activation, AE max ~750nT 2020-09-28/05:00-09:00 Periodic Activations, AE max ~1100nT, AE min ~480nT 2020-09-28/11:00-19:00 Periodic Activations, AE max ~1250nT, AE min ~500nT 2020-09-28/20:00-23:00 AL Activation, AE max ~1000nT, AE min ~500nT 2020-09-29/00:00-01:30 Substorm, AE max ~1000nT 2020-09-29/01:30-02:00 AL Activation, AE max ~900nT 2020-09-29/13:30-18:30 Periodic Activations, AE max ~1000nT 2020-09-29/18:30-20:00 AL Activation, AE ~500nT 2020-09-29/21:00-22:00 AL Activation, AE ~500nT DST min -75nT 2020-09-29/23:30-2020-09-30/01:00 AL Activation, AE ~500nT 2020-09-30/04:00-05:00 Small AL Activation, AE ~750nT 2020-09-30/06:00-08:00 Sharp AU/AL Activations, AE ~1100nT 2020-09-30/08:00-10:00 Sharp AU/AL Activations, AE ~1000nT 2020-09-30/10:00-12:00 AU/AL Activation, Possible Substorm AE ~600nT 2020-09-30/15:00-18:00 Periodic Activations, max AE ~750nT 2020-10-01/09:00-13:00 Substorm, AE ~1000nT 2020-10-01/13:00-15:00 Small AL Activation, AE ~500nT 2020-10-01/15:00-20:00 Periodic Activations, AE ~600nT 2020-10-02/09:00-11:00 Periodic Activations, AE ~750nT 2020-10-02/11:00-12:00 Substorm, AE max ~750nT 2020-10-02/14:00-20:00 Prolonged AL Activation, AE ~500nT 2020-10-03/09:00-10:00 Small AL Activation, AE ~500nT 2020-10-04/11:30-12:30 Small AL Activation, AE ~500nT DST Regularly between -60 and -40nT ------------------------------------------------------ Science Notes on ELFIN Data EL-A 2020-09-27/02:58:34 2020-09-27/03:04:39 South Descending Increased Flux 2020-09-27/04:32:21 2020-09-27/04:38:23 South Descending Increased Flux 2020-09-27/09:11:52 2020-09-27/09:17:56 South Descending Increased Flux 2020-09-27/10:44:33 2020-09-27/10:50:32 South Descending Increased Flux 2020-09-27/12:17:03 2020-09-27/12:23:05 South Descending Increased Flux 2020-09-27/18:29:01 2020-09-27/18:35:05 South Descending Increased Flux 2020-09-27/20:03:04 2020-09-27/20:09:06 South Descending Increased Flux 2020-09-28/00:46:33 2020-09-28/00:52:35 South Descending Increased Flux 2020-09-28/05:29:18 2020-09-28/05:34:18 South Descending Increased Flux 2020-09-28/07:01:33 2020-09-28/07:07:35 South Descending Increased Flux 2020-09-28/10:07:14 2020-09-28/10:12:45 South Descending Increased Flux 2020-09-28/22:34:24 2020-09-28/22:37:51 South Descending Increased Flux 2020-09-29/00:08:33 2020-09-29/00:14:38 South Descending Increased Flux 2020-09-29/01:42:53 2020-09-29/01:48:56 South Descending Increased Flux 2020-09-29/03:16:54 2020-09-29/03:22:57 South Descending Increased Flux 2020-09-29/06:24:01 2020-09-29/06:30:03 South Descending Increased Flux 2020-09-29/07:57:07 2020-09-29/08:03:09 South Descending Increased Flux 2020-09-29/11:02:32 2020-09-29/11:04:40 South Descending Increased Flux 2020-09-30/01:04:52 2020-09-30/01:10:55 South Descending Increased Flux 2020-09-30/04:12:52 2020-09-30/04:18:52 South Descending Increased Flux 2020-09-30/08:52:30 2020-09-30/08:58:28 South Descending Increased Flux 2020-09-30/10:25:57 2020-09-30/10:28:53 South Descending Increased Flux 2020-09-30/21:17:49 2020-09-30/21:23:50 South Descending Increased Flux 2020-10-01/00:26:51 2020-10-01/00:32:53 South Descending Increased Flux 2020-10-01/02:01:41 2020-10-01/02:07:08 South Descending Increased Flux 2020-10-01/06:42:03 2020-10-01/06:48:05 South Descending Increased Flux 2020-10-01/09:47:47 2020-10-01/09:53:51 South Descending Increased Flux 2020-10-01/11:21:12 2020-10-01/11:26:25 South Descending Increased Flux 2020-10-01/12:52:50 2020-10-01/12:58:54 South Descending Increased Flux 2020-10-01/20:39:46 2020-10-01/20:45:50 South Descending Increased Flux 2020-10-02/02:57:14 2020-10-02/03:03:13 South Descending Increased Flux 2020-10-02/12:15:33 2020-10-02/12:21:21 South Descending Increased Flux 2020-10-03/00:45:07 2020-10-03/00:51:09 South Descending Increased Flux 2020-10-03/05:26:50 2020-10-03/05:32:47 South Descending Increased Flux 2020-10-03/06:59:59 2020-10-03/07:05:59 South Descending Increased Flux 2020-10-03/20:58:00 2020-10-03/21:03:38 South Descending Increased Flux 2020-10-04/03:15:24 2020-10-04/03:21:27 South Descending Increased Flux 2020-10-04/04:49:03 2020-10-04/04:53:27 South Descending Increased Flux 2020-10-04/09:28:18 2020-10-04/09:34:21 South Descending Increased Flux 2020-10-04/11:00:49 2020-10-04/11:06:52 South Descending Increased Flux 2020-10-04/23:29:01 2020-10-04/23:33:53 South Descending Increased Flux EL-B 2020-09-27/05:04:15 2020-09-27/05:09:16 North Descending Increased Flux 2020-09-27/06:37:23 2020-09-27/06:43:24 North Descending Increased Flux 2020-09-27/11:15:19 2020-09-27/11:21:22 North Descending Increased Flux 2020-09-27/12:47:54 2020-09-27/12:53:47 North Descending Increased Flux 2020-09-27/23:41:46 2020-09-27/23:47:47 North Descending Increased Flux 2020-09-28/01:17:09 2020-09-28/01:21:46 North Descending No Summary Plot 2020-09-28/10:39:23 2020-09-28/10:44:14 North Descending No Summary Plot 2020-09-28/16:52:57 2020-09-28/16:55:27 North Descending No Summary Plot 2020-09-28/18:23:31 2020-09-28/18:28:48 North Descending No Summary Plot 2020-09-28/23:04:08 2020-09-28/23:10:05 North Descending No Summary Plot 2020-09-29/02:14:11 2020-09-29/02:18:40 North Descending Increased Flux 2020-09-29/05:25:00 2020-09-29/05:27:24 North Descending No Summary Plot 2020-09-30/10:57:37 2020-09-30/11:00:30 North Descending Inconclusive 2020-09-30/12:29:21 2020-09-30/12:34:43 North Descending Inconclusive 2020-09-30/17:09:29 2020-09-30/17:14:16 North Descending Inconclusive 2020-09-30/18:41:31 2020-09-30/18:46:44 North Descending Inconclusive 2020-09-30/21:48:43 2020-09-30/21:54:39 North Descending Inconclusive 2020-09-30/23:22:47 2020-09-30/23:28:46 North Descending Increased Flux 2020-10-01/10:19:34 2020-10-01/10:25:36 North Descending Increased Flux 2020-10-01/11:52:29 2020-10-01/11:58:05 North Descending Increased Flux 2020-10-01/13:24:47 2020-10-01/13:30:49 North Descending Increased Flux 2020-10-01/16:30:51 2020-10-01/16:36:53 North Descending Increased Flux 2020-10-01/18:04:06 2020-10-01/18:10:08 North Descending Increased Flux 2020-10-03/11:14:11 2020-10-03/11:17:34 South Descending Increased Flux 2020-10-03/12:44:03 2020-10-03/12:50:00 South Descending Increased Flux 2020-10-03/16:17:23 2020-10-03/16:27:09 North Ascending Increased Flux 2020-10-03/23:40:02 2020-10-03/23:46:03 South Descending Increased Flux 2020-10-04/01:14:26 2020-10-04/01:20:30 South Descending Increased Flux 2020-10-04/02:48:36 2020-10-04/02:54:38 South Descending Increased Flux 2020-10-04/04:22:20 2020-10-04/04:28:24 South Descending Increased Flux 2020-10-04/05:55:47 2020-10-04/06:01:49 South Descending Increased Flux 2020-10-04/09:01:46 2020-10-04/09:07:51 South Descending Increased Flux 2020-10-04/10:34:26 2020-10-04/10:37:47 South Descending Increased Flux ------------------------------------------------------ Data Collection (current status) EL-A 2020-09-27, 7 SZ 2020-09-28, 6 SZ 2020-09-29, 6 SZ* 2020-09-30, 6 SZ* 2020-10-01, 7 SZ* 2020-10-02, 8 SZ* 2020-10-03, 5 SZ* 2020-10-04, 6 SZ* 2020-09-27/04:32:21 2020-09-27/04:38:23 South Descending Intermittent Data Gaps 2020-09-27/09:11:52 2020-09-27/09:17:56 South Descending Data Gap 2020-09-27/10:44:33 2020-09-27/10:50:32 South Descending Intermittent Data Gaps 2020-09-27/12:17:03 2020-09-27/12:23:05 South Descending Data Gap 2020-09-28/00:46:33 2020-09-28/00:52:35 South Descending Intermittent Data Gaps 2020-09-28/05:29:18 2020-09-28/05:34:18 South Descending Intermittent Data Gaps 2020-09-28/07:01:33 2020-09-28/07:07:35 South Descending Intermittent Data Gaps 2020-09-28/10:07:14 2020-09-28/10:12:45 South Descending Intermittent Data Gaps 2020-09-28/22:34:24 2020-09-28/22:37:51 South Descending Intermittent Data Gaps 2020-09-29/00:08:33 2020-09-29/00:14:38 South Descending Data Gap 2020-09-29/03:16:54 2020-09-29/03:22:57 South Descending Marginal Gaps 2020-09-29/06:24:01 2020-09-29/06:30:03 South Descending Marginal Gaps 2020-09-30/01:04:52 2020-09-30/01:10:55 South Descending Data Gap 2020-09-30/04:12:52 2020-09-30/04:18:52 South Descending Marginal Gaps 2020-09-30/08:52:30 2020-09-30/08:58:28 South Descending Marginal Gaps 2020-09-30/21:17:49 2020-09-30/21:23:50 South Descending Marginal Gaps 2020-10-01/00:26:51 2020-10-01/00:32:53 South Descending Intermittent Data Gaps 2020-10-01/02:01:41 2020-10-01/02:07:08 South Descending Intermittent Data Gaps 2020-10-01/06:42:03 2020-10-01/06:48:05 South Descending Data Gap 2020-10-02/02:57:14 2020-10-02/03:03:13 South Descending Intermittent Data Gaps 2020-10-02/06:04:25 2020-10-02/06:10:27 South Descending Intermittent Data Gaps 2020-10-02/07:37:46 2020-10-02/07:43:34 South Descending Intermittent Data Gaps 2020-10-02/09:10:22 2020-10-02/09:16:24 South Descending Intermittent Data Gaps 2020-10-02/10:43:01 2020-10-02/10:48:49 South Descending Intermittent Data Gaps 2020-10-02/12:15:33 2020-10-02/12:21:21 South Descending Intermittent Data Gaps 2020-10-02/13:48:10 2020-10-02/13:54:04 South Descending Intermittent Data Gaps 2020-10-02/23:10:38 2020-10-02/23:13:16 South Descending Intermittent Data Gaps 2020-10-03/00:45:07 2020-10-03/00:51:09 South Descending Intermittent Data Gaps 2020-10-03/05:26:50 2020-10-03/05:32:47 South Descending Intermittent Data Gaps 2020-10-03/06:59:59 2020-10-03/07:05:59 South Descending Intermittent Data Gaps 2020-10-03/17:49:42 2020-10-03/17:55:47 South Descending Intermittent Data Gaps 2020-10-03/20:58:00 2020-10-03/21:03:38 South Descending Intermittent Data Gaps 2020-10-04/03:15:24 2020-10-04/03:21:27 South Descending Data Gap 2020-10-04/04:49:03 2020-10-04/04:53:27 South Descending Marginal Data Gap EL-B 2020-09-27, 7 SZ 2020-09-28, 5 SZ 2020-09-29, 2 SZ 2020-09-30, 6 SZ* 2020-10-01, 8 SZ 2020-10-02, 0 SZ 2020-10-03, 7 SZ 2020-10-04, 6 SZ* 2020-09-27/05:04:15 2020-09-27/05:09:16 North Descending Intermittent Data Gaps 2020-09-27/06:37:23 2020-09-27/06:43:24 North Descending Intermittent Data Gaps 2020-09-27/11:15:19 2020-09-27/11:21:22 North Descending Intermittent Data Gaps 2020-09-27/12:47:54 2020-09-27/12:53:47 North Descending Intermittent Data Gaps 2020-09-27/19:00:34 2020-09-27/19:06:24 North Descending Intermittent Data Gaps 2020-09-27/22:07:34 2020-09-27/22:13:35 North Descending Intermittent Data Gaps 2020-09-27/23:41:46 2020-09-27/23:47:47 North Descending Intermittent Data Gaps 2020-09-28/01:17:09 2020-09-28/01:21:46 North Descending Intermittent Data Gaps 2020-09-28/10:39:23 2020-09-28/10:44:14 North Descending Intermittent Data Gaps 2020-09-28/16:52:57 2020-09-28/16:55:27 North Descending Intermittent Data Gaps 2020-09-28/23:04:08 2020-09-28/23:10:05 North Descending Intermittent Data Gaps 2020-09-29/02:14:11 2020-09-29/02:18:40 North Descending Intermittent Data Gaps 2020-09-29/05:25:00 2020-09-29/05:27:24 North Descending Almost No Data 2020-09-30/10:57:37 2020-09-30/11:00:30 North Descending Almost No Data 2020-09-30/12:29:21 2020-09-30/12:34:43 North Descending Almost No Data 2020-09-30/17:09:29 2020-09-30/17:14:16 North Descending Almost No Data 2020-09-30/18:41:31 2020-09-30/18:46:44 North Descending Intermittent Data Gaps 2020-09-30/21:48:43 2020-09-30/21:54:39 North Descending Intermittent Data Gaps 2020-09-30/23:22:47 2020-09-30/23:28:46 North Descending Intermittent Data Gaps 2020-10-01/00:57:38 2020-10-01/01:03:39 North Descending Data Gaps 2020-10-01/05:41:06 2020-10-01/05:47:08 North Descending Small Data Gaps 2020-10-03/11:14:11 2020-10-03/11:17:34 South Descending Intermittent Data Gaps 2020-10-03/12:44:03 2020-10-03/12:50:00 South Descending Intermittent Data Gaps 2020-10-03/14:16:46 2020-10-03/14:22:43 South Descending Intermittent Data Gaps 2020-10-03/16:17:23 2020-10-03/16:27:09 North Ascending Intermittent Data Gaps 2020-10-03/17:22:56 2020-10-03/17:28:42 South Descending Intermittent Data Gaps 2020-10-03/18:56:50 2020-10-03/19:02:48 South Descending Intermittent Data Gaps 2020-10-03/23:40:02 2020-10-03/23:46:03 South Descending Intermittent Data Gaps 2020-10-04/09:01:46 2020-10-04/09:07:51 South Descending Small Marginal Data Gaps