Tohban Report 05/09/21 - 05/15/21 Tohban Name: Colin Wilkins (updated [2021/5/17]) Special Notes ------------- - First Kp 7 storm encountered by ELFIN! - Note to downlink team: please prioritize 5-12 for collections as it was a moderately strong storm with good ELFIN coverage Automatic report generated 2021-05-17 22:47:55.785138 (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 ------------------------------------------------------ 9 0 57 8 9 0.0 ... 9 3 75 14 9 0.3 ... 9 6 75 10 9 0.3 ... 9 9 75 9 11 0.3 ... 9 12 226 26 9 1.0 ... 9 15 243 60 9 1.0 ... 9 18 57 8 14 0.3 ... 9 21 57 8 18 1.3 ... 10 0 75 9 21 1.0 ... 10 3 94 15 27 2.3 ... 10 6 94 16 22 1.0 ... 10 9 356 66 14 2.0 ... 10 12 257 41 0 2.0 ... 10 15 496 77 -9 1.0 ... 10 18 488 137 -3 2.0 ... 10 21 245 43 1 1.3 ... 11 0 150 26 8 1.7 ... 11 3 129 20 6 1.0 ... 11 6 109 17 5 0.3 ... 11 9 93 14 4 0.3 ... 11 12 75 13 7 0.3 ... 11 15 110 18 5 0.3 ... 11 18 75 13 8 0.3 ... 11 21 75 12 5 0.3 ... 12 0 57 10 6 1.0 ... 12 3 166 33 7 1.3 ... 12 6 733 174 11 3.7 Sudden storm commencement 12 9 604 123 22 4.7 Sudden storm commencement 12 12 1603 294 -61 7.0 Storm onset; strong AE activations; Kp 7! 12 15 1638 483 -57 6.7 Strong AE activations; storm time for next many hours 12 18 417 85 -41 2.0 Begin recovery phase from storm 12 21 583 153 -47 3.0 ... 13 0 413 99 -30 2.0 ... 13 3 472 103 -30 1.7 ... 13 6 113 20 -25 1.7 ... 13 9 90 16 -23 1.3 ... 13 12 112 19 -19 2.0 ... 13 15 242 55 -28 1.0 ... 13 18 283 71 -25 1.3 ... 13 21 328 66 -21 2.0 ... 14 0 110 13 -14 0.7 ... 14 3 168 43 -10 0.7 ... 14 6 149 23 -12 0.7 ... 14 9 75 15 -10 0.0 ... 14 12 113 18 -12 0.3 ... 14 15 102 16 -11 1.0 ... 14 18 396 99 -9 1.0 ... 14 21 318 83 -14 2.3 ... 15 0 640 153 -16 3.3 Minor AE activations 15 3 189 45 1 1.7 ... 15 6 638 154 -13 2.3 ... 15 9 343 70 -15 1.3 ... 15 12 205 25 -14 1.0 ... 15 15 189 39 -19 1.3 ... 15 18 226 48 -13 0.7 ... 15 21 147 31 -11 1.0 ... 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 -------------------------------------------------------------------------------------------------------------- 2021-05-11 00:29:15 - 00:35:16 SD 1 small gap, mainly in middle 120/127 = 94% ... Well-populated outer belt and plasma sheet; some inner belt flux 2021-05-11 02:01:43 - 02:07:44 SD 3 large gaps, mainly in middle 86/127 = 68% G Outer belt fluxes; maybe some plasma sheet (or just extended and well-separated outer belt fluxes at low energy); many gaps 2021-05-11 03:34:02 - 03:40:04 SD 1 large gap, mainly in beginning/middle 107/127 = 84% G Outer belt fluxes with strong low-energy population relative to high energy flux; big gaps in middle 2021-05-11 05:06:20 - 05:12:23 SD 17 small gaps, mainly in middle 105/127 = 83% B Bad FGM state 2021-05-11 05:52:43 - 05:58:44 NA No significant gaps 127/127 = 100% ... Inner and outer belts totally depleted; only minor plasma sheet flux at low energy 2021-05-11 07:25:24 - 07:31:26 NA No significant gaps 127/127 = 100% ... Same as above 2021-05-11 08:58:28 - 09:04:29 NA No significant gaps 127/127 = 100% # Reemergence of MeV outer belt flux and low energy plasma sheet fluxes 2021-05-11 11:18:50 - 11:24:51 SD 2 large gaps, mainly in end 93/127 = 73% G Minor outer belt presence with low energy fluxes extending from outer belt to plasma sheet; large gaps 2021-05-11 13:40:20 - 13:46:24 NA 2 small gaps, mainly in middle/end 108/128 = 84% ... Outer and some inner belt fluxes 2021-05-11 15:14:40 - 15:20:44 NA 2 small gaps, mainly in middle/end 118/128 = 92% ... Outer and some inner belt fluxes 2021-05-11 16:48:53 - 16:54:51 NA No significant gaps 126/126 = 100% ... Outer belt high energy flux mostly depleted; low energy outer and inner belt fluxes; minor isolated precipitation band at low energyies (possible IB/waves) 2021-05-11 21:29:38 - 21:35:39 NA No significant gaps 126/127 = 99% ... Only low energy fluxes over a narrow outer belt L-shell range 2021-05-12 00:35:17 - 00:41:19 NA No significant gaps 127/128 = 99% ... Outer belts with sharp poleward cutoff 2021-05-12 03:40:02 - 03:46:03 NA No significant gaps 127/127 = 100% ... Completely depleted outer belt with some low energy plasma sheet fluxes 2021-05-12 04:26:04 - 04:32:02 SD 1 large gap, mainly in middle 116/126 = 92% ... Outer belts at seemingly low L-shells (though IGRF vs dipole give largely different values) 2021-05-12 05:12:23 - 05:18:24 NA No significant gaps 127/127 = 100% ... Outer belts completely depleted; very minor plasma sheet fluxes 2021-05-12 06:44:55 - 06:50:58 NA No significant gaps 128/128 = 100% # Lots of localized plasma sheet bursts of precipitation 2021-05-12 09:04:19 - 09:10:21 SD 2 small gaps, mainly in end 121/128 = 95% #/* Lots of localized outer belt precipitation at low to mid energies; continual preciptating plasma sheet low energy flux to end of the zone 2021-05-12 12:11:59 - 12:17:55 SD 3 large gaps, mainly in middle 69/125 = 55% G Not enough data but looks like perhaps a well-populated high energy outer belt and plasma sheet fluxes at low energy 2021-05-12 14:33:36 - 14:39:38 NA 2 large gaps, mainly in beginning 110/128 = 86% G,* Very sharp cutoff/precipitation in outer belt at low L-shells; some very interesting looking sharply localized plasma sheet flux variations; gaps in key outer belt locations make it unclear whether the sharpness is an artifact of processing 2021-05-12 16:07:52 - 16:13:53 NA 1 small gap, mainly in end 123/127 = 97% # Likely lots of precipitation at low to mid energies but needs phase delay correction 2021-05-12 18:28:39 - 18:34:40 SD 16 small gaps, mainly in beginning 97/127 = 76% B Bad FGM state 2021-05-12 20:49:00 - 20:55:00 NA No significant gaps 127/127 = 100% # Very sharp cutoff to inner belts with highly localized outer belt fluxes; extremely sharp cutoff with L; need phase delay correction 2021-05-12 22:22:05 - 22:28:01 NA 2 small gaps, mainly in end 114/125 = 91% # Looks like a wide outer belt with localized precipitation; not much plasma sheet presence; needs phase delay correction 2021-05-13 01:27:25 - 01:33:26 NA No significant gaps 128/127 = 101% ... Outer belt with localized low-energy structure; needs phase delay correction 2021-05-13 02:13:29 - 02:19:30 SD No significant gaps 128/127 = 101% # Well-populated outer belt at low L-shells; localized precipitation bands at outer edge and in plasma sheet 2021-05-13 04:32:05 - 04:38:05 NA 1 small gap, mainly in end 120/127 = 94% #/* Localized outer belt and plasma sheet band structures with precipitation; needs phase delay correction 2021-05-13 06:04:30 - 06:10:31 NA 1 small gap, mainly in end 123/127 = 97% # Localized outer belt structures with plasma sheet precipitation at low energies; needs phase delay correction 2021-05-13 09:10:26 - 09:16:30 NA 16 small gaps, mainly in middle 97/128 = 76% B Bad FGM state 2021-05-13 11:30:56 - 11:36:58 SD 1 small gap, mainly in end 127/127 = 100% # Very wide outer belt and/or plasma sheet in L-shell; some localized precipitation 2021-05-13 13:52:29 - 13:58:31 NA 4 large gaps, mainly in end 55/128 = 43% G Looks like outer belt but too many gaps 2021-05-13 14:39:30 - 14:45:32 SD 1 large gap, mainly in beginning 116/127 = 91% ... Very wide outer belt and/or plasma sheet in L-shell; needs phase delay correction 2021-05-13 15:26:48 - 15:32:52 NA 10 small gaps, mainly in middle 129/128 = 101% B Bad FGM state 2021-05-13 17:00:54 - 17:06:55 NA 11 small gaps, mainly in beginning 130/127 = 102% B Bad FGM state 2021-05-13 20:08:19 - 20:14:22 NA 1 large gap, mainly in beginning 120/128 = 94% ... Inner and outer belts seem merged; sharp cutoff to outer belts; need phase delay correction 2021-05-13 23:14:25 - 23:20:25 NA No significant gaps 127/127 = 100% # Inner and outer belts seem merged; some sharp localized precipitation at low energies; some banded plasma sheet precipitation; needs phase delay correction 2021-05-14 00:47:02 - 00:53:04 NA 1 small gap, mainly in middle/end 122/128 = 95% ... Outer belt with some plasma sheet 2021-05-14 03:51:47 - 03:57:46 NA No significant gaps 127/127 = 100% ... Almost totally depleted outer belt with some fluxes in the transition to plasma sheet; needs phase delay correction 2021-05-14 05:24:09 - 05:30:10 NA No significant gaps 105/127 = 83% ... Similar to above; needs phase delay correction 2021-05-14 06:56:43 - 07:02:45 NA 2 large gaps, mainly in middle 106/128 = 83% G Minor outer belt presence at low energy; some plasma sheet flux; gaps; needs phase delay correction 2021-05-14 09:16:15 - 09:22:11 SD 3 small gaps, mainly in beginning 111/125 = 89% # Wide outer belt with lots of localized precipitations at low energy leading to plasma sheet; gaps in important areas; need phase delay correction 2021-05-14 10:49:57 - 10:55:53 SD 3 large gaps, mainly in middle 96/126 = 76% G Wide outer belt flux in L-shell; some localized plasma sheet precipitation at low energies; needs phase delay correction 2021-05-14 12:24:03 - 12:30:09 SD 2 large gaps, mainly in beginning 82/129 = 64% G Same as above with worse gaps 2021-05-14 13:11:18 - 13:17:21 NA 1 large gap, mainly in beginning 118/128 = 92% ... Wide outer belt flux in L-shell; some localized precipitation; needs phase delay correction 2021-05-14 14:45:40 - 14:51:40 NA No significant gaps 127/127 = 100% ... Outer belt fluxes with what seems like localized precipitation; needs phase delay correction to know for sure 2021-05-14 17:06:47 - 17:12:50 SD 2 large gaps, mainly in end 110/128 = 86% G Very wide outer belt in L-shell; some gaps in potentially interesting regions; needs phase delay correction 2021-05-14 21:00:53 - 21:06:55 NA 2 large gaps, mainly in middle/end 84/128 = 66% G Outer belt confined to low L-shells; some localized low energy precipitation; many gaps at higher L shells; needs phase delay correction 2021-05-14 22:33:54 - 22:39:54 NA 1 large gap, mainly in beginning 107/127 = 84% ... Minor outer belt presence with cleanly separated gap region in L shell followed by low-energy plasma sheet fluxes with some precipitation ELFIN B Outer EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------------- 2021-05-11 02:09:59 - 02:15:55 ND 8 large gaps, mainly in beginning 13/125 = 10% G ... 2021-05-11 02:56:06 - 03:02:07 SA 5 large gaps, mainly in end 17/127 = 13% G ... 2021-05-11 05:14:54 - 05:20:50 ND 3 large gaps, mainly in middle/end 19/125 = 15% G ... 2021-05-11 07:34:08 - 07:40:04 SA 4 large gaps, mainly in end 11/125 = 9% G ... 2021-05-11 09:53:47 - 09:59:48 ND 4 large gaps, mainly in end 14/127 = 11% G ... 2021-05-11 12:13:38 - 12:19:34 SA 6 large gaps, mainly in middle 21/125 = 17% G ... 2021-05-11 14:34:13 - 14:40:12 ND 3 large gaps, mainly in end 49/126 = 39% G ... 2021-05-11 15:21:22 - 15:27:18 SA 1 large gap, mainly in beginning 75/125 = 60% G Some outer belt fluxes but large gaps 2021-05-11 16:56:08 - 17:02:04 SA 2 large gaps, mainly in beginning 78/125 = 62% G Some outer belt flux with many gaps 2021-05-11 18:30:52 - 18:36:54 SA 2 large gaps, mainly in end 82/127 = 65% G Some outer belt flux with many gaps 2021-05-11 20:05:06 - 20:11:02 SA 1 small gap, mainly in beginning 113/125 = 90% ... Minor outer belt flux confined to lower L-shells 2021-05-11 23:11:34 - 23:17:30 SA 3 small gaps, mainly in middle 106/125 = 85% G Minor outer belt flux with gaps in key locations 2021-05-12 00:44:00 - 00:49:56 SA 3 large gaps, mainly in beginning 35/125 = 28% B? Highly unusual fluxes; potentially unphysical? Many gaps as well 2021-05-12 03:48:36 - 03:54:37 SA 2 large gaps, mainly in end 80/127 = 63% G Wide high-energy outer belt with separate plasma sheet and inner belt low energy population; gaps in key areas 2021-05-12 04:34:53 - 04:40:49 ND 1 small gap, mainly in middle 53/125 = 42% G Some outer belt fluxes with localized precipitation; short collection? 2021-05-12 06:54:00 - 06:59:56 SA 1 large gap, mainly in middle/end 2/125 = 2% G ... 2021-05-12 09:13:35 - 09:19:31 ND 1 large gap, mainly in end 4/125 = 3% G ... 2021-05-12 11:33:21 - 11:39:17 SA 2 large gaps, throughout 7/125 = 6% G ... 2021-05-12 13:53:40 - 13:59:36 ND 3 large gaps, mainly in beginning 23/125 = 18% G ... 2021-05-12 14:40:39 - 14:46:38 SA 5 large gaps, mainly in end 25/126 = 20% G,# Many gaps but from what appears, outer belt fluxes are very high with precipitation 2021-05-12 17:02:40 - 17:08:36 ND 4 large gaps, mainly in middle/end 9/125 = 7% G ... 2021-05-12 19:24:31 - 19:30:27 SA 4 large gaps, mainly in middle 17/125 = 14% G ... 2021-05-12 20:58:21 - 21:04:17 SA 1 small gap, mainly in beginning 8/125 = 6% G ... 2021-05-12 22:31:31 - 22:37:27 SA 6 large gaps, mainly in middle 19/125 = 15% G,# Many gaps but from appears, outer belt fluxes are very high with some precipitation 2021-05-13 01:36:25 - 01:42:21 SA 1 large gap, mainly in beginning/middle 2/125 = 2% G ... 2021-05-13 06:13:54 - 06:19:50 SA 4 large gaps, mainly in beginning 6/125 = 5% G ... 2021-05-13 10:06:31 - 10:12:27 ND 3 large gaps, mainly in end 15/125 = 12% G ... 2021-05-13 12:26:25 - 12:32:21 SA 3 large gaps, mainly in end 13/125 = 10% G ... 2021-05-13 14:00:04 - 14:06:03 SA 5 large gaps, mainly in end 16/127 = 13% G ... 2021-05-13 15:34:21 - 15:40:19 SA 4 large gaps, mainly in end 17/126 = 13% G ... 2021-05-13 17:09:10 - 17:15:06 SA 6 large gaps, mainly in end 29/125 = 23% G ... 2021-05-13 18:43:50 - 18:49:46 SA 6 large gaps, mainly in beginning 32/125 = 26% G ... 2021-05-13 20:17:57 - 20:23:54 SA 5 large gaps, mainly in end 22/126 = 17% G ... 2021-05-13 22:37:50 - 22:43:46 ND 4 large gaps, mainly in middle 27/125 = 22% G ... 2021-05-13 23:24:11 - 23:30:07 SA 2 large gaps, mainly in beginning/middle 6/125 = 5% G ... 2021-05-14 00:56:34 - 01:02:30 SA 5 large gaps, mainly in middle 14/125 = 11% G ... 2021-05-14 04:01:11 - 04:07:50 SA 4 large gaps, mainly in end 35/141 = 25% G Looks like wide outer belt in L-shells but many gaps 2021-05-14 04:47:30 - 04:53:26 ND 3 large gaps, mainly in beginning 23/125 = 18% G ... 2021-05-14 07:06:41 - 07:12:37 SA 4 large gaps, mainly in end 21/125 = 17% G ... 2021-05-14 09:26:17 - 09:32:15 ND 4 large gaps, mainly in middle 51/126 = 40% G Some outer belt; too many gaps 2021-05-14 13:19:35 - 13:25:34 SA 6 large gaps, mainly in end 28/127 = 22% G Some outer belt; too many gaps 2021-05-14 15:40:52 - 15:46:48 ND 5 large gaps, mainly in middle 50/125 = 40% G Some outer belt; too many gaps 2021-05-14 16:28:15 - 16:34:14 SA 6 small gaps, mainly in end 75/127 = 59% G Some outer belt; many gaps 2021-05-14 18:03:03 - 18:09:04 SA 3 large gaps, mainly in end 70/127 = 55% G Some outer belt; too many gaps 2021-05-14 19:37:25 - 19:43:21 SA 3 large gaps, mainly in end 57/125 = 46% G Some outer belt; too many gaps 2021-05-14 21:11:07 - 21:17:08 SA 6 large gaps, mainly in end 55/127 = 43% G Some outer belt; too many gaps 2021-05-14 22:44:09 - 22:50:05 SA 2 large gaps, mainly in beginning 42/125 = 34% G Some outer belt possibly with precipitation, but unfortunate gap locations 2021-05-15 01:36:15 - 01:42:11 SD 1 large gap, mainly in end 5/125 = 4% G ... 2021-05-15 04:40:57 - 04:46:56 SD 4 large gaps, mainly in beginning 9/127 = 7% G ... 2021-05-15 06:59:57 - 07:05:53 NA 3 large gaps, mainly in middle/end 11/125 = 9% G ... 2021-05-15 10:06:33 - 10:12:32 NA 6 large gaps, mainly in end 29/127 = 23% G Some outer belt; too many gaps 2021-05-15 12:27:29 - 12:33:31 SD 7 large gaps, mainly in middle 30/128 = 23% G Some outer belt and plasma sheet; too many gaps 2021-05-15 14:01:51 - 14:07:47 SD 6 large gaps, mainly in beginning 24/125 = 19% G Some outer belt and plasma sheet; too many gaps 2021-05-15 14:49:10 - 14:55:12 NA 5 large gaps, mainly in middle 41/128 = 32% G Some outer belt; too many gaps 2021-05-15 17:10:18 - 17:16:19 SD 2 large gaps, mainly in end 72/127 = 57% G Wide outer belt but poor gap locations 2021-05-15 20:17:36 - 20:23:32 SD 7 small gaps, mainly in middle 70/125 = 56% G ... 2021-05-15 21:04:22 - 21:10:22 NA 3 large gaps, mainly in middle 79/127 = 62% G Outer belt at low L-shells; gaps in key spots 2021-05-15 21:50:47 - 21:56:48 SD 3 large gaps, mainly in middle 50/127 = 39% G Some outer and inner belt fluxes; many gaps 2021-05-15 23:23:40 - 23:29:36 SD 3 large gaps, mainly in beginning 29/125 = 23% G Same as above ELFIN A Inner EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------------- 2021-05-11 01:02:23 - 01:16:19 INA No significant gaps 74/73 = 101% ... Essentially no fluxes; possible proton contam at end 2021-05-11 14:11:09 - 14:25:07 ISD No significant gaps 74/74 = 100% ... Appearance of low energy fluxes; approaching SAA? 2021-05-12 01:55:27 - 02:09:27 INA No significant gaps 74/74 = 100% ... Essentially no fluxes; possible proton contam at end 2021-05-12 15:03:22 - 15:17:09 ISD No significant gaps 73/73 = 100% # Strong low energy presence with some localized structure; needs phase delay correction 2021-05-13 07:25:16 - 07:43:11 INA 1 small gap, mainly in beginning 74/94 = 79% G? No data shown in summary plots 2021-05-13 20:41:12 - 20:55:05 ISD No significant gaps 74/73 = 101% G? No data shown in summary plots 2021-05-14 09:48:43 - 10:02:42 INA 2 small gaps, mainly in beginning/middle 74/74 = 100% G? No data shown in summary plots 2021-05-14 21:34:01 - 21:47:57 ISD No significant gaps 74/74 = 100% G? No data shown in summary plots 2021-05-15 03:00:27 - 03:14:23 INA No significant gaps 74/74 = 100% G? No data shown in summary plots 2021-05-15 16:07:34 - 16:21:23 ISD No significant gaps 73/73 = 100% G? No data shown in summary plots ELFIN B Inner EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------- 2021-05-10 05:32:22 - 05:46:15 INA No significant gaps 74/73 = 101% ... Some very low energy flux 2021-05-10 16:24:00 - 16:38:00 INA 2 small gaps, mainly in end 62/74 = 84% ... Low-energy flux present throughout; some localized trapped flux enhancements 2021-05-11 04:52:25 - 05:06:15 INA 2 large gaps, mainly in end 52/73 = 71% ... Low-energy flux present throughout; approaches outer belt at end 2021-05-11 15:43:17 - 15:57:13 INA 1 small gap, mainly in end 70/74 = 95% ... Apparent inner belt population starting at L~1.3 with low energy flux; increases continually from there 2021-05-12 04:12:12 - 04:26:13 INA 1 small gap, mainly in beginning 73/74 = 99% ... Some very low energy flux 2021-05-12 16:36:59 - 16:50:46 INA 2 small gaps, mainly in end 57/73 = 78% ... Low-energy flux present throughout; appearance of higher energies near end 2021-05-13 03:31:51 - 03:45:26 INA 2 large gaps, mainly in beginning 23/72 = 32% G? No data shown in summary plots 2021-05-13 15:56:15 - 16:10:08 INA 4 large gaps, mainly in middle/end 14/74 = 19% G? No data shown in summary plots 2021-05-14 04:24:56 - 04:38:53 INA 2 large gaps, mainly in end 30/74 = 41% G? No data shown in summary plots 2021-05-14 16:49:56 - 17:03:08 INA 2 large gaps, mainly in middle/end 11/70 = 16% G Low-energy flux present throughout; increasing at end 2021-05-15 02:54:44 - 03:07:04 ISD 2 large gaps, mainly in end 18/65 = 28% G? No data shown in summary plots 2021-05-15 15:18:33 - 15:24:29 ISD Cut short 1/32 = 3% G? No data shown in summary plots