Tohban Report 10/31/21 - 11/06/21 Tohban Name: Xiaojia Zhang (updated [11/08/2021]) Special Notes ------------- Elevated noise floor in EPDe data during 10/31-11/03 (both EL-A and EL-B), which can be clearly seen in the plasma sheet region, as exemplified in this pass (https://data.elfin.ucla.edu/ela/overplots/2021/11/03/ela_l2_overview_20211103_12_sasc.gif) Automatic report generated 2021-11-08 16:00:05.744509 (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 ------------------------------------------------------ 31 0 396 69 -16 2.3 ... 31 3 283 71 -23 2.3 ... 31 6 99 19 -17 0.3 ... 31 9 317 54 -9 3.0 ... 31 12 1265 220 -24 4.0 A major substorm 31 15 472 66 -19 2.3 ... 31 18 768 164 -16 3.0 ... 31 21 849 216 -9 4.0 A major substorm 1 0 376 85 -4 2.0 ... 1 3 467 63 -15 2.7 A moderate substorm 1 6 239 23 -17 1.0 ... 1 9 509 127 -19 1.7 A major substorm 1 12 110 21 1 0.7 ... 1 15 150 28 6 0.7 ... 1 18 280 54 11 2.7 ... 1 21 185 40 19 3.3 ... 2 0 577 179 -12 3.3 Elevated AE throughout the day, with multiple substorms 2 3 849 153 -21 4.7 ... 2 6 464 93 -18 3.0 ... 2 9 1519 435 -14 3.7 ... 2 12 962 212 -5 3.0 ... 2 15 619 155 -11 1.7 ... 2 18 659 147 -12 2.3 ... 2 21 413 76 3 2.0 ... 3 0 206 23 -10 2.7 ... 3 3 129 18 -10 1.3 ... 3 6 283 73 -10 1.0 ... 3 9 132 27 -8 0.3 ... 3 12 206 47 0 1.0 ... 3 15 258 55 -4 0.7 ... 3 18 1640 333 -4 4.0 A major substorm and a storm 3 21 2153 655 -14 6.3 ... 4 0 1396 381 -27 6.3 ... 4 3 1140 152 -43 5.7 ... 4 6 2270 273 -107 7.0 ... 4 9 2646 506 -95 7.7 ... 4 12 2219 414 -103 5.7 ... 4 15 542 83 -81 3.7 ... 4 18 260 50 -63 1.7 ... 4 21 160 20 -42 2.0 ... 5 0 129 28 -43 1.3 ... 5 3 204 37 -42 3.3 ... 5 6 112 31 -35 2.0 ... 5 9 112 30 -38 1.0 ... 5 12 189 35 -32 2.0 ... 5 15 931 197 -38 3.7 Multiple major substorms till the end of the day 5 18 602 91 -39 3.0 ... 5 21 731 165 -26 2.7 ... 6 0 372 47 -9 4.0 ... 6 3 405 38 -14 3.0 ... 6 6 340 28 -30 3.0 ... 6 9 770 162 -33 3.3 A major substorm 6 12 395 78 -29 1.3 ... 6 15 987 179 -39 4.0 Elevated AE till the end of the day, multiple major substorms 6 18 849 89 -33 3.0 ... 6 21 693 157 -28 3.0 ... 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 --------------------------------------------------------------------------------------------------------------- 2021-10-31 00:27:18 - 00:33:20 SA 1 small gap, mainly in end 123/126 = 98% # ... 2021-10-31 02:00:01 - 02:06:01 SA 1 small gap, mainly in end 119/125 = 95% # ... 2021-10-31 03:32:55 - 03:38:56 SA 1 large gap, mainly in beginning 111/126 = 88% # ... 2021-10-31 05:05:56 - 05:11:56 SA 3 small gaps, mainly in end 101/126 = 80% # ... 2021-10-31 06:39:05 - 06:45:08 SA 5 small gaps, mainly in end 88/127 = 69% # ... 2021-10-31 08:12:41 - 08:18:41 SA No significant gaps 126/125 = 101% # ... 2021-10-31 11:21:35 - 11:27:35 SA 9 large gaps, mainly in middle 44/126 = 35% G ... 2021-10-31 12:55:45 - 13:01:48 SA 5 large gaps, mainly in beginning 81/127 = 64% * Intense bursts of <~400keV electron precipitation 2021-10-31 14:29:22 - 14:35:24 SA 2 large gaps, mainly in end 72/127 = 57% # ... 2021-10-31 15:15:57 - 15:22:00 ND No significant gaps 127/127 = 100% # ... 2021-10-31 19:52:46 - 19:58:46 ND No significant gaps 123/125 = 98% # ... 2021-11-01 01:16:08 - 01:22:11 SA No significant gaps 127/128 = 99% # ... 2021-11-01 04:21:53 - 04:27:53 SA No significant gaps 126/127 = 99% # ... 2021-11-01 05:54:56 - 06:00:56 SA 1 small gap, mainly in beginning 124/126 = 98% # ... 2021-11-01 07:28:18 - 07:34:20 SA 2 small gaps, mainly in middle 119/127 = 94% # ... 2021-11-01 09:02:17 - 09:08:19 SA 2 small gaps, mainly in middle 110/127 = 87% # ... 2021-11-01 10:36:50 - 10:42:51 SA 1 small gap, mainly in middle 124/127 = 98% # ... 2021-11-01 12:11:14 - 12:17:18 SA 2 small gaps, mainly in middle 115/127 = 91% * Localized MeV electron precipitation (no EMICs at THEMIS) 2021-11-01 13:45:10 - 13:51:11 SA 2 small gaps, mainly in end 119/127 = 94% # ... 2021-11-01 16:04:47 - 16:10:50 ND 3 large gaps, mainly in beginning 72/127 = 57% G ... 2021-11-01 20:41:14 - 20:47:10 ND 3 large gaps, mainly in middle 50/125 = 40% G ... 2021-11-01 22:59:38 - 23:05:34 SA 6 small gaps, mainly in beginning 77/125 = 62% # ... 2021-11-02 00:32:13 - 00:38:11 SA 1 large gap, mainly in beginning 107/126 = 85% # ... 2021-11-02 03:37:48 - 03:43:50 SA 2 small gaps, mainly in beginning/middle 104/126 = 83% # ... 2021-11-02 08:17:41 - 08:23:41 SA 4 small gaps, mainly in beginning 103/126 = 82% * Interesting burst of electron precipitation at <900keV (no conjunctions with equatorial s/c) 2021-11-02 11:26:36 - 11:32:38 SA No significant gaps 127/127 = 100% * Continuous, intense electron precipitation at <~500keV 2021-11-02 13:00:43 - 13:06:45 SA 2 large gaps, mainly in middle/end 79/127 = 62% # ... 2021-11-02 14:34:17 - 14:40:23 SA 5 small gaps, mainly in middle 134/128 = 105% # ... 2021-11-02 15:20:50 - 15:26:50 ND 15 small gaps, mainly in end 119/126 = 94% # ... 2021-11-02 19:57:33 - 20:03:35 ND 2 large gaps, mainly in middle 83/127 = 65% # ... 2021-11-02 22:15:48 - 22:21:44 SA 1 small gap, mainly in beginning 122/125 = 98% # ... 2021-11-02 23:48:17 - 23:54:18 SA 1 large gap, mainly in middle/end 101/127 = 80% # ... 2021-11-03 02:53:46 - 02:59:43 SA 4 small gaps, mainly in beginning 110/124 = 89% # ... 2021-11-03 05:59:48 - 06:05:51 SA 3 large gaps, mainly in end 85/127 = 67% # ... 2021-11-03 09:07:15 - 09:13:18 SA 2 large gaps, mainly in beginning 95/127 = 75% # ... 2021-11-03 11:29:06 - 11:35:07 ND No significant gaps 126/126 = 100% # Barely any flux in the radiation belts 2021-11-03 12:16:12 - 12:22:13 SA No significant gaps 126/126 = 100% # ... 2021-11-03 13:50:02 - 13:56:02 SA No significant gaps 126/126 = 100% # ... 2021-11-03 19:13:53 - 19:19:54 ND 1 small gap, mainly in beginning/middle 123/126 = 98% # ... 2021-11-03 21:31:59 - 21:37:55 SA 1 small gap, mainly in end 113/124 = 91% * 100s of keV electron precipitation possibly related to KAWs (THEMIS in conjunction) 2021-11-03 23:04:22 - 23:10:18 SA No significant gaps 88/124 = 71% # ... 2021-11-04 02:09:31 - 02:15:33 SA Cut short 47/128 = 37% G ... 2021-11-04 05:15:23 - 05:21:23 SA 1 small gap, mainly in beginning 125/127 = 98% # ... 2021-11-04 08:22:19 - 08:28:21 SA 4 small gaps, mainly in end 148/128 = 116% # Low fluxes in the outer radiation belt 2021-11-04 11:31:15 - 11:37:15 SA No significant gaps 127/127 = 100% # ... 2021-11-04 14:38:47 - 14:44:50 SA No significant gaps 128/128 = 100% # ... 2021-11-04 15:25:18 - 15:31:19 ND No significant gaps 127/127 = 100% * Continuous, intense electron precipitation at <~500keV 2021-11-04 20:01:55 - 20:07:58 ND No significant gaps 128/128 = 100% # ... 2021-11-04 22:20:11 - 22:26:07 SA Cut short 6/125 = 5% G ... 2021-11-05 01:25:23 - 01:31:19 SA 2 large gaps, mainly in middle 35/125 = 28% G ... 2021-11-05 04:31:08 - 04:37:04 SA 5 large gaps, mainly in end 52/125 = 42% G ... 2021-11-05 07:37:40 - 07:43:38 SA 5 large gaps, mainly in end 34/126 = 27% G ... 2021-11-05 10:46:20 - 10:52:16 SA 5 large gaps, mainly in end 44/125 = 35% G ... 2021-11-05 13:54:26 - 14:00:26 SA 4 large gaps, mainly in middle/end 20/126 = 16% G ... 2021-11-05 19:18:05 - 19:24:02 ND 2 large gaps, mainly in end 21/125 = 17% G ... 2021-11-05 21:36:13 - 21:42:09 SA 5 large gaps, mainly in middle 51/125 = 41% # ... 2021-11-05 23:08:36 - 23:14:32 SA 2 small gaps, mainly in beginning 41/125 = 33% G ... 2021-11-06 00:41:09 - 00:47:10 SA No significant gaps 127/127 = 100% # ... 2021-11-06 03:46:48 - 03:52:48 SA 1 small gap, mainly in beginning/middle 120/126 = 95% # ... 2021-11-06 06:53:01 - 06:59:02 SA 4 small gaps, mainly in end 90/127 = 71% # ... 2021-11-06 09:14:01 - 09:19:59 ND 14 small gaps, mainly in beginning 118/126 = 94% # ... 2021-11-06 10:01:15 - 10:07:12 SA 1 large gap, mainly in middle/end 113/125 = 90% # ... 2021-11-06 11:35:45 - 11:41:45 SA 1 large gap, mainly in beginning 103/127 = 81% # Barely any flux in the plasma sheet 2021-11-06 12:22:51 - 12:28:53 ND 2 large gaps, mainly in middle 95/127 = 75% * Modulated precipitation at <~300keV (THEMIS not in conjunction) 2021-11-06 13:09:48 - 13:15:50 SA 2 large gaps, mainly in middle 111/127 = 87% # ... 2021-11-06 15:29:38 - 15:35:39 ND No significant gaps 127/127 = 100% # ... 2021-11-06 17:48:08 - 17:54:11 SA No significant gaps 120/128 = 94% # ... 2021-11-06 20:06:09 - 20:12:11 ND 2 small gaps, mainly in beginning 109/127 = 86% * Modulated precipitation at <~300keV (THEMIS not in conjunction) 2021-11-06 20:52:10 - 20:58:06 SA 1 small gap, mainly in beginning 59/125 = 47% G ... ELFIN B Outer EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------------- 2021-10-31 00:15:41 - 00:21:45 ND 2 large gaps, mainly in middle 106/128 = 83% # ... 2021-10-31 01:02:00 - 01:08:03 SA 6 large gaps, mainly in middle 46/128 = 36% G ... 2021-10-31 02:34:49 - 02:40:51 SA 6 large gaps, mainly in end 35/128 = 27% G ... 2021-10-31 04:07:48 - 04:13:51 SA 6 large gaps, mainly in end 45/128 = 35% G ... 2021-10-31 05:40:51 - 05:46:52 SA 3 large gaps, mainly in end 75/127 = 59% G ... 2021-10-31 07:14:13 - 07:20:18 SA 5 large gaps, mainly in middle 68/128 = 53% G ... 2021-10-31 08:48:08 - 08:54:04 SA 6 large gaps, mainly in middle 55/125 = 44% G ... 2021-10-31 10:22:50 - 10:28:47 SA 5 large gaps, mainly in middle 42/125 = 34% G ... 2021-10-31 11:57:12 - 12:03:08 SA 6 large gaps, mainly in end 35/125 = 28% G ... 2021-10-31 13:31:25 - 13:37:21 SA 5 large gaps, mainly in middle/end 17/125 = 14% G ... 2021-10-31 16:37:29 - 16:43:25 SA 5 large gaps, mainly in middle 42/125 = 34% G ... 2021-11-01 11:13:09 - 11:19:05 SA Cut short 8/125 = 6% G ... 2021-11-01 12:47:26 - 12:53:22 SA 1 large gap, mainly in middle/end 14/125 = 11% G ... 2021-11-01 14:21:05 - 14:27:01 SA 4 large gaps, mainly in middle/end 15/125 = 12% G ... 2021-11-01 15:54:04 - 16:00:05 SA 4 large gaps, mainly in middle 49/127 = 39% G ... 2021-11-01 17:26:30 - 17:32:26 SA 6 large gaps, mainly in middle 43/125 = 34% G ... 2021-11-02 00:21:48 - 00:27:44 ND 4 large gaps, mainly in middle 48/125 = 38% G ... 2021-11-02 01:08:07 - 01:14:07 SA 5 small gaps, mainly in end 98/126 = 78% # ... 2021-11-02 03:27:30 - 03:33:26 ND 3 large gaps, mainly in end 69/125 = 55% G ... 2021-11-02 04:13:56 - 04:19:52 SA 4 large gaps, mainly in end 54/125 = 43% G ... 2021-11-02 07:20:25 - 07:26:27 SA 3 large gaps, mainly in middle 70/127 = 55% G ... 2021-11-02 08:54:26 - 09:00:22 SA 5 large gaps, mainly in end 60/125 = 48% G ... 2021-11-02 10:29:01 - 10:34:57 SA 2 large gaps, mainly in beginning/middle 49/125 = 39% G ... 2021-11-02 12:03:30 - 12:09:29 SA 3 large gaps, mainly in middle 70/126 = 56% G ... 2021-11-02 15:10:43 - 15:16:41 SA 3 large gaps, mainly in end 64/126 = 51% G ... 2021-11-02 18:15:34 - 18:21:30 SA 5 large gaps, mainly in middle 50/125 = 40% G ... 2021-11-03 01:11:13 - 01:17:14 ND 1 large gap, mainly in beginning/middle 97/126 = 77% # ... 2021-11-03 01:57:34 - 02:03:37 SA 2 small gaps, mainly in beginning 108/127 = 85% # ... 2021-11-03 05:03:30 - 05:09:30 SA No significant gaps 108/126 = 86% # ... 2021-11-03 07:23:33 - 07:29:33 ND 1 large gap, mainly in end 113/126 = 90% # ... 2021-11-03 08:10:25 - 08:16:27 SA 2 small gaps, mainly in beginning/middle 115/127 = 91% # ... 2021-11-03 11:19:25 - 11:25:24 SA 4 small gaps, mainly in middle 82/126 = 65% # ... 2021-11-03 12:53:38 - 12:59:38 SA 2 large gaps, mainly in beginning/middle 92/126 = 73% # ... 2021-11-03 14:27:12 - 14:33:12 SA 1 large gap, mainly in middle 95/126 = 75% # ... 2021-11-03 16:00:07 - 16:06:08 SA 1 large gap, mainly in middle 116/126 = 92% # ... 2021-11-03 17:32:29 - 17:38:25 SA 1 large gap, mainly in middle 76/124 = 61% # ... 2021-11-04 00:27:37 - 00:33:33 ND 3 large gaps, mainly in beginning 45/124 = 36% G ... 2021-11-04 02:00:25 - 02:06:21 ND 4 large gaps, mainly in end 36/124 = 29% G* Continuous, intense precipitation 2021-11-04 03:33:19 - 03:39:21 ND 6 large gaps, mainly in middle 36/126 = 29% G ... 2021-11-04 09:00:23 - 09:06:23 SA 4 large gaps, mainly in end 46/126 = 37% G ... 2021-11-04 10:34:59 - 10:40:55 SA 4 small gaps, mainly in beginning 97/124 = 78% # Barely any flux in the plasma sheet 2021-11-04 12:09:24 - 12:15:23 SA 4 large gaps, mainly in beginning 77/125 = 62% # ... 2021-11-04 15:16:28 - 15:22:30 SA 6 small gaps, mainly in middle 66/126 = 52% # ... 2021-11-04 18:21:12 - 18:27:12 SA 8 small gaps, mainly in beginning 69/125 = 55% # ... 2021-11-04 21:25:24 - 21:31:20 SA 3 small gaps, mainly in beginning 37/124 = 30% G ... 2021-11-05 09:03:23 - 09:09:19 ND 1 small gap, mainly in end 7/125 = 6% G ... 2021-11-05 11:25:12 - 11:31:08 SA 1 large gap, mainly in beginning/middle 42/125 = 34% G ... 2021-11-05 14:32:50 - 14:38:46 SA 3 large gaps, mainly in middle/end 46/125 = 37% G ... 2021-11-05 17:37:58 - 17:43:59 SA 4 large gaps, mainly in middle 58/127 = 46% G ... 2021-11-05 20:42:05 - 20:48:08 SA 3 large gaps, mainly in beginning/middle 73/128 = 57% # ... 2021-11-05 23:46:56 - 23:52:52 SA No significant gaps 118/125 = 94% # ... 2021-11-06 01:19:43 - 01:25:39 SA 1 large gap, mainly in end 104/125 = 83% # ... 2021-11-06 04:25:33 - 04:31:29 SA 2 large gaps, mainly in middle/end 26/125 = 21% G ... 2021-11-06 07:32:10 - 07:38:06 SA 3 large gaps, mainly in end 48/125 = 38% G ... 2021-11-06 08:19:11 - 08:25:12 ND 4 large gaps, mainly in end 44/127 = 35% G ... 2021-11-06 10:40:55 - 10:46:55 SA 4 large gaps, mainly in end 77/127 = 61% # ... 2021-11-06 12:15:18 - 12:21:14 SA 2 large gaps, mainly in middle 66/125 = 53% # Barely any flux in the plasma sheet 2021-11-06 13:49:05 - 13:55:05 SA 2 large gaps, mainly in end 99/127 = 78% # ... 2021-11-06 19:12:52 - 19:18:51 ND 6 large gaps, mainly in end 41/127 = 32% G ... 2021-11-06 20:44:58 - 20:50:54 ND 6 large gaps, mainly in middle 43/125 = 34% G ... 2021-11-06 21:31:03 - 21:36:59 SA 2 large gaps, mainly in beginning/middle 30/125 = 24% G ... ELFIN A Inner EPD ----------------- ELFIN B Inner EPD -----------------