Tohban Report 08/29/21 - 09/04/21 Tohban Name: Xiaojia Zhang (updated [09/07/2021]) Special Notes ------------- Intense precipitation bursts during the recent magnetic storm, but unfortunately are not conjugate to equatorial measurements due to MLT: http://themis-data.igpp.ucla.edu/ela/overplots/2021/08/28/ela_l2_overview_20210828_05_sdes.gif Automatic report generated 2021-09-07 17:18:59.740052 (UTC) Note: data is provisional, and may be subject to change Geomagnetic Activity Overview ----------------------------- Day Hour AE (max) AE (sd) DST (min) KP (max) Notes ------------------------------------------------------ 29 0 94 16 -19 2.0 ... 29 3 113 17 -10 1.3 ... 29 6 204 30 -1 0.7 ... 29 9 207 50 -2 0.7 ... 29 12 113 21 -4 0.7 ... 29 15 868 242 -16 1.7 A major substorm 29 18 868 244 -17 3.3 ... 29 21 264 56 -4 2.7 ... 30 0 112 16 -6 1.0 ... 30 3 471 105 0 2.7 A major substorm 30 6 185 38 4 2.3 ... 30 9 297 69 2 1.3 ... 30 12 500 146 -8 2.0 A major substorm 30 15 257 69 -5 0.7 ... 30 18 264 49 -10 1.0 ... 30 21 569 146 -9 2.3 A major substorm 31 0 622 129 -18 2.7 A major substorm 31 3 733 128 -18 2.7 A major substorm 31 6 585 90 -16 2.0 A major substorm 31 9 418 37 -12 1.0 ... 31 12 334 48 -16 1.0 ... 31 15 262 62 -10 1.0 ... 31 18 131 23 -12 0.0 ... 31 21 226 48 -11 2.0 ... 1 0 299 56 -9 2.0 ... 1 3 281 65 -2 1.3 ... 1 6 283 55 -1 1.0 ... 1 9 577 151 -7 1.7 A major substorm 1 12 302 62 -9 0.7 ... 1 15 434 121 -12 0.7 A major substorm 1 18 191 50 -8 0.3 ... 1 21 302 71 -5 1.3 A major substorm 2 0 75 13 -10 0.7 ... 2 3 75 12 -3 0.7 ... 2 6 73 12 2 0.3 ... 2 9 377 87 -6 1.0 ... 2 12 517 108 -12 1.0 A major substorm 2 15 226 42 -10 1.0 ... 2 18 300 63 -12 1.3 ... 2 21 75 11 -6 0.0 ... 3 0 74 8 -7 1.0 ... 3 3 94 13 7 1.3 ... 3 6 415 117 7 1.3 ... 3 9 1024 194 -14 2.7 A major substorm 3 12 773 159 -19 2.3 A major substorm 3 15 234 45 -17 1.3 ... 3 18 283 46 -21 1.3 ... 3 21 509 143 -17 2.3 A major substorm 4 0 340 71 -16 1.7 ... 4 3 168 34 -10 0.7 ... 4 6 356 125 -1 1.0 A major substorm 4 9 468 99 -1 1.7 A major substorm 4 12 151 21 -8 0.7 ... 4 15 170 27 -9 0.3 ... 4 18 151 29 -5 0.7 ... 4 21 301 80 -6 2.0 ... ELFIN Data Collection and Notes ------------------------------- Flags: * = Extremely Interesting # = Potentially Interesting G = Too many gaps, need more data to judge B = Bad data [indicates something wrong with instruments, not availability status] T = Test data [indicates data is no good for science, elaborate on test conditions in notes] Zones: NA: North Ascending ND: North Descending SD: South Descending SA: South Ascending ELFIN A Outer EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------------- 2021-08-29 02:50:26 - 02:56:30 NA 16 small gaps, mainly in beginning 105/129 = 81% # Low flux in the plasma sheet 2021-08-29 06:43:21 - 06:49:17 SD 3 large gaps, mainly in beginning 82/126 = 65% G ... 2021-08-29 09:51:33 - 09:57:31 SD 4 large gaps, mainly in middle 82/127 = 65% # Well populated radiation belt 2021-08-29 19:59:11 - 20:05:07 NA 2 large gaps, mainly in middle/end 10/126 = 8% G ... 2021-08-29 21:31:35 - 21:37:31 NA 3 large gaps, mainly in middle 9/126 = 7% G ... 2021-08-29 23:03:50 - 23:09:46 NA 2 large gaps, mainly in beginning/middle 8/126 = 6% G ... 2021-08-30 02:08:16 - 02:14:12 NA 6 large gaps, mainly in end 21/125 = 17% G ... 2021-08-30 05:14:04 - 05:20:00 NA 4 large gaps, mainly in beginning 8/125 = 6% G ... 2021-08-30 09:08:38 - 09:14:34 SD 1 large gap, throughout 2/125 = 2% G ... 2021-08-30 12:17:00 - 12:22:56 SD Cut short 2/125 = 2% G ... 2021-08-30 15:24:24 - 15:30:20 SD 6 large gaps, mainly in end 12/125 = 10% G ... 2021-08-30 22:21:46 - 22:27:47 NA 1 large gap, mainly in end 6/127 = 5% G ... 2021-08-31 01:26:13 - 01:32:16 NA 5 large gaps, mainly in end 38/128 = 30% G ... 2021-08-31 02:58:44 - 03:04:40 NA 3 large gaps, mainly in end 43/125 = 34% G ... 2021-08-31 06:05:03 - 06:10:59 NA 3 large gaps, mainly in beginning 10/125 = 8% G ... 2021-09-01 02:16:34 - 02:22:36 NA No significant gaps 129/129 = 100% # Regularly populated radiation belt and plasma sheet 2021-09-01 05:22:28 - 05:28:28 NA No significant gaps 129/128 = 101% # Regularly populated radiation belt and plasma sheet 2021-09-01 10:04:23 - 10:10:25 NA 1 small gap, mainly in end 126/129 = 98% # <200keV electron precipitation potentially related to chorus/KAWs 2021-09-01 13:12:31 - 13:18:30 NA 1 large gap, mainly in beginning 141/128 = 110% # Regularly populated radiation belt and plasma sheet 2021-09-01 18:38:50 - 18:44:52 SD 4 small gaps, mainly in end 115/129 = 89% # Regularly populated radiation belt and plasma sheet 2021-09-01 21:43:48 - 21:49:44 SD 4 large gaps, mainly in middle 55/127 = 43% G ... 2021-09-02 00:47:55 - 00:53:51 SD Cut short 3/127 = 2% G ... 2021-09-02 04:39:41 - 04:45:37 NA 6 large gaps, mainly in middle 18/127 = 14% G ... 2021-09-02 09:21:09 - 09:27:07 NA 7 large gaps, mainly in end 32/127 = 25% G ... 2021-09-02 12:29:25 - 12:35:21 NA 5 large gaps, mainly in end 46/127 = 36% G ... 2021-09-02 17:09:48 - 17:15:49 NA 5 large gaps, mainly in beginning 56/128 = 44% G ... 2021-09-02 21:01:17 - 21:07:20 SD 7 large gaps, mainly in end 41/129 = 32% G ... 2021-09-03 01:38:01 - 01:44:02 SD 3 large gaps, mainly in beginning 60/129 = 47% G ... 2021-09-03 07:50:58 - 07:56:58 SD 2 large gaps, mainly in beginning 107/128 = 84% # Regularly populated radiation belt and plasma sheet 2021-09-03 10:12:19 - 10:18:19 NA 6 large gaps, mainly in middle 64/128 = 50% G ... 2021-09-03 11:46:27 - 11:52:27 NA 5 large gaps, mainly in end 65/128 = 51% G ... 2021-09-03 18:00:11 - 18:06:14 NA 8 small gaps, mainly in middle 88/129 = 68% G ... 2021-09-03 21:05:18 - 21:11:19 NA 5 large gaps, mainly in middle 75/128 = 59% G ... 2021-09-04 07:08:11 - 07:14:07 SD 3 large gaps, mainly in middle 25/126 = 20% G ... ELFIN B Outer EPD ----------------- ELFIN A Inner EPD ----------------- ELFIN B Inner EPD -----------------