Tohban Report 09/19/21 - 09/25/21 Tohban Name: Colin Wilkins (updated [09/27/21]) Special Notes ------------- Abbreviations used: - ORB=Outer Radiation Belt - IRB=Inner Radiation Belt - PS=Plasma Sheet - IB=Isotropic Boundary - prxn=precipitation - LE=low-energy (~500 keV or less) - ME=medium-energy (~500 to 1000 keV) - HE=high-energy (~1 MeV or greater) - SAA=south atlantic anomaly - NS=nightside - DS=dayside - HL=high-latitude Orbits: consistent with the requested NA/SD focus; no IBO/THEMIS conjunction collections Automatic report generated 2021-09-27 15:00:06.735384 (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 ------------------------------------------------------ 19 0 94 17 -26 1.0 ... 19 3 75 12 -22 0.0 ... 19 6 92 7 -18 0.0 ... 19 9 113 15 -25 0.3 ... 19 12 113 11 -21 1.0 ... 19 15 94 6 -19 0.0 ... 19 18 166 36 -26 0.3 ... 19 21 94 16 -23 0.0 ... 20 0 110 13 -17 1.3 ... 20 3 89 9 -15 0.3 ... 20 6 75 8 -9 0.0 ... 20 9 170 26 -12 1.0 ... 20 12 132 18 -13 0.3 ... 20 15 113 11 -10 0.0 ... 20 18 113 14 -8 0.3 ... 20 21 94 17 -9 1.0 ... 21 0 313 60 -8 2.3 ... 21 3 94 14 2 0.3 ... 21 6 75 8 1 0.3 ... 21 9 93 13 -2 0.3 ... 21 12 356 75 -10 1.0 ... 21 15 834 221 -14 2.7 AE activation; minor storm onset 21 18 472 77 -12 2.0 ... 21 21 584 116 -21 3.0 ... 22 0 659 142 -23 4.0 ... 22 3 562 127 -28 2.7 ... 22 6 1185 324 -35 3.7 Peak storm main phase 22 9 911 186 -31 2.7 ... 22 12 453 83 -32 1.3 ... 22 15 376 58 -31 0.3 ... 22 18 244 24 -29 1.7 ... 22 21 434 112 -27 1.7 ... 23 0 202 35 -15 2.7 Storm recovery (rough est) 23 3 377 77 -12 3.0 ... 23 6 866 257 -17 3.7 ... 23 9 414 108 -14 2.0 ... 23 12 284 41 -4 2.0 ... 23 15 151 15 2 1.7 ... 23 18 75 8 -4 1.3 ... 23 21 94 13 -4 0.7 ... 24 0 131 15 -1 1.7 ... 24 3 113 20 1 2.0 ... 24 6 357 91 -5 1.7 ... 24 9 129 13 -5 1.0 ... 24 12 149 17 -8 1.0 ... 24 15 904 230 -19 2.3 AE activation 24 18 170 33 -18 1.0 ... 24 21 113 23 -18 0.7 ... 25 0 183 26 -17 2.0 ... 25 3 281 54 -15 2.7 ... 25 6 430 99 -10 2.0 ... 25 9 453 128 -14 1.7 ... 25 12 186 20 -15 1.0 ... 25 15 214 34 -11 1.0 ... 25 18 221 45 -15 1.0 ... 25 21 297 67 -16 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 ---------------------------------------------------------------------------------------------------------------- 2021-09-19 00:21:55 - 00:27:51 NA 5 small gaps, mainly in end 34/125 = 27% G ... 2021-09-19 03:27:07 - 03:33:10 NA 5 small gaps, mainly in end 113/128 = 88% ... ORB with IB likely 2021-09-19 11:16:27 - 11:22:24 NA 5 large gaps, mainly in end 51/126 = 40% G ... 2021-09-19 12:03:26 - 12:09:25 SD 2 large gaps, mainly in middle/end 80/127 = 63% G Populated and lat-extended (slant?) ORB with big data gaps 2021-09-19 15:10:33 - 15:16:29 SD 3 large gaps, mainly in end 88/125 = 70% ... Populated and lat-extended ORB 2021-09-19 17:30:03 - 17:36:04 NA 1 small gap, mainly in middle 120/127 = 94% ... ORB with low fluxes 2021-09-19 18:16:25 - 18:22:27 SD No significant gaps 128/127 = 101% ... Populated ORB 2021-09-19 21:21:13 - 21:27:16 SD 1 small gap, mainly in end 123/128 = 96% ... Populated ORB 2021-09-20 01:11:50 - 01:17:46 NA 1 large gap, mainly in middle/end 31/125 = 25% G ... 2021-09-20 04:17:29 - 04:23:25 NA 4 large gaps, mainly in middle 26/125 = 21% G Makings of an ORB but many data gaps 2021-09-20 10:33:17 - 10:39:13 NA 4 large gaps, mainly in middle/end 49/125 = 39% G ORB with many data gaps 2021-09-20 15:14:21 - 15:20:24 NA 4 large gaps, mainly in middle/end 47/128 = 37% G Makings of an ORB but many data gaps 2021-09-20 19:06:29 - 19:12:31 SD 4 large gaps, mainly in beginning 61/128 = 48% G ORB with some gaps 2021-09-20 22:11:03 - 22:17:04 SD 4 large gaps, mainly in middle 65/127 = 51% ... ORB with some gaps 2021-09-20 23:43:12 - 23:49:14 SD 4 large gaps, mainly in middle 69/128 = 54% B Bad FGM data 2021-09-21 00:29:20 - 00:35:21 NA 4 large gaps, mainly in end 30/127 = 24% G ... 2021-09-21 03:34:38 - 03:40:39 NA 4 large gaps, mainly in end 44/128 = 34% G ORB with HE fluxes but many data gaps 2021-09-21 05:07:57 - 05:13:57 NA 2 large gaps, mainly in beginning 92/127 = 72% ... ORB with some big data gaps 2021-09-21 11:24:04 - 11:30:01 NA 2 large gaps, mainly in middle/end 87/126 = 69% G ORB and some IRB; big data gaps 2021-09-21 17:37:29 - 17:43:31 NA 1 large gap, mainly in beginning 121/128 = 95% # Moderate LE precipitation in ORB; needs phase delay updated 2021-09-21 19:56:22 - 20:02:22 SD No significant gaps 127/127 = 100% # Well-populated and extended ORB with localized intense LE/ME precipitation at high latitude (maybe field-line scattering?) 2021-09-21 21:28:36 - 21:34:36 SD 1 large gap, mainly in beginning/middle 112/127 = 88% ... ORB present 2021-09-21 23:46:52 - 23:52:54 NA No significant gaps 127/128 = 99% # Completely depleted ORB except with a narrow band of precipitating wide energy flux; possibly an IB with evident energy dispersion? 2021-09-22 00:33:00 - 00:39:00 SD No significant gaps 117/129 = 91% ... ORB present 2021-09-22 03:38:19 - 03:44:19 SD No significant gaps 127/129 = 98% * Very intense spatially-modulated (bands) of LE/ME precipitating fluxes 2021-09-22 05:11:40 - 05:17:40 SD 3 small gaps, mainly in middle 122/129 = 95% # More on-going preciptation; less intense than previous; needs small gaps filled 2021-09-22 09:06:40 - 09:12:36 NA 1 small gap, mainly in middle 113/127 = 89% # ORB with potentially wide spatial LE precipitation; needs improved phase delay to know 2021-09-22 12:14:46 - 12:20:45 NA 1 large gap, mainly in beginning 121/128 = 95% * ORB with high LE fluxes and very intense (presumably IB) precipitation 2021-09-22 16:54:48 - 17:00:53 NA 3 small gaps, mainly in middle 126/131 = 96% # Similar to above; needs phase delay correction 2021-09-22 19:59:59 - 20:06:00 NA No significant gaps 129/129 = 100% ... ORB with some LE precipitation; needs phase correction 2021-09-22 22:18:20 - 22:24:22 SD No significant gaps 129/129 = 100% #/* Well-populated ORB with moderately intense LE/ME prxn 2021-09-23 03:42:00 - 03:47:56 NA 4 large gaps, mainly in beginning 20/127 = 16% G ... 2021-09-23 04:28:38 - 04:34:39 SD 3 large gaps, mainly in end 10/129 = 8% G ... 2021-09-23 06:02:12 - 06:08:18 SD 8 large gaps, mainly in end 19/131 = 15% G ... 2021-09-23 07:36:13 - 07:42:14 SD 3 large gaps, mainly in middle/end 50/129 = 39% G Some well-populated ORB but large data gaps 2021-09-23 08:23:18 - 08:29:14 NA 3 large gaps, mainly in middle 40/127 = 31% G Same as above 2021-09-23 09:10:25 - 09:16:28 SD 5 large gaps, mainly in beginning 53/130 = 41% #/* Very intense LE wave precipitation; needs gaps filled 2021-09-23 10:44:34 - 10:50:34 SD 4 large gaps, mainly in beginning 48/129 = 37% # Similar to above 2021-09-23 11:31:33 - 11:37:34 NA 7 small gaps, mainly in beginning 88/129 = 68% ... ORB with minor LE prxn 2021-09-23 17:44:50 - 17:50:50 NA 1 small gap, mainly in end 126/129 = 98% ... ORB with an IB likely 2021-09-23 20:49:44 - 20:55:47 NA 1 large gap, mainly in end 120/130 = 92% # ORB with some kind of periodically-depleted fluxes 2021-09-23 23:59:59 - 00:06:02* NA No significant gaps 130/129 = 101% G? Data not shown in summary plots; not updated? 2021-09-24 03:45:40 - 03:51:44 SD 20 small gaps, mainly in middle 113/130 = 87% G? Data not shown in summary plots; not updated? 2021-09-24 06:52:53 - 06:58:51 SD 25 small gaps, mainly in middle 69/127 = 54% G? Data not shown in summary plots; not updated? 2021-09-24 08:27:02 - 08:33:03 SD 2 small gaps, mainly in beginning 111/128 = 87% G? Data not shown in summary plots; not updated? 2021-09-24 10:01:14 - 10:07:15 SD 2 large gaps, mainly in beginning/middle 111/128 = 87% G? Data not shown in summary plots; not updated? 2021-09-24 10:48:16 - 10:54:17 NA 1 large gap, mainly in end 121/128 = 95% G? Data not shown in summary plots; not updated? 2021-09-24 13:09:03 - 13:15:05 SD No significant gaps 129/129 = 100% G? Data not shown in summary plots; not updated? 2021-09-24 15:29:05 - 15:35:06 NA 1 small gap, mainly in beginning 124/128 = 97% G? Data not shown in summary plots; not updated? 2021-09-24 18:34:46 - 18:40:46 NA No significant gaps 129/128 = 101% G? Data not shown in summary plots; not updated? 2021-09-24 21:39:25 - 21:45:29 NA 2 small gaps, mainly in beginning 125/129 = 97% G? Data not shown in summary plots; not updated? 2021-09-25 00:43:53 - 00:49:49 NA 3 large gaps, mainly in middle/end 15/126 = 12% G ... 2021-09-25 03:49:22 - 03:55:18 NA Cut short 1/126 = 1% G ... 2021-09-25 07:43:43 - 07:49:39 SD 1 large gap, throughout 3/126 = 2% G ... 2021-09-25 10:52:01 - 10:57:58 SD 6 large gaps, mainly in end 11/126 = 9% G ... 2021-09-25 12:25:57 - 12:31:53 SD 4 large gaps, mainly in end 9/126 = 7% G ... 2021-09-25 13:59:32 - 14:05:28 SD 3 large gaps, mainly in end 55/126 = 44% G ... ELFIN B Outer EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------------- 2021-09-19 00:31:49 - 00:37:48 NA 3 small gaps, mainly in beginning 113/126 = 90% # Depleted ORB with a single precipitating region (IB?) 2021-09-19 11:26:49 - 11:32:49 NA No significant gaps 126/127 = 99% ... ORB present 2021-09-19 12:13:48 - 12:19:49 SD No significant gaps 127/127 = 100% ... ORB with minor IB possible 2021-09-19 15:20:54 - 15:26:55 SD 3 large gaps, mainly in beginning 103/127 = 81% ... Extended and well-populated ORB crossing 2021-09-19 17:40:23 - 17:46:23 NA 1 large gap, mainly in middle 118/127 = 93% ... Extended and well-populated ORB 2021-09-19 18:26:45 - 18:32:47 SD No significant gaps 127/128 = 99% ... Quiescent ORB; small gaps 2021-09-19 20:45:25 - 20:51:24 NA No significant gaps 126/126 = 100% ... Quiescent ORB; IB likely 2021-09-19 21:31:33 - 21:37:32 SD 2 small gaps, mainly in end 116/126 = 92% ... ORB with some bands of LE prxn 2021-09-20 10:44:13 - 10:50:15 NA Cut short 7/127 = 6% G ... 2021-09-20 15:25:15 - 15:31:14 NA 2 large gaps, mainly in beginning/middle 97/126 = 77% ... ORB some data gaps 2021-09-20 17:44:45 - 17:50:41 SD 2 large gaps, mainly in middle/end 72/125 = 58% G ORB with large data gaps 2021-09-20 19:17:22 - 19:23:21 SD 1 large gap, mainly in beginning 110/126 = 87% ... Well-populated ORB 2021-09-20 22:21:57 - 22:27:58 SD 1 large gap, mainly in middle/end 108/127 = 85% ... ORB with a few data gaps 2021-09-21 05:19:13 - 05:25:09 NA Cut short 3/124 = 2% G ... 2021-09-21 11:35:33 - 11:41:29 NA Cut short 2/124 = 2% G ... 2021-09-21 17:48:56 - 17:54:52 NA Cut short 1/124 = 1% G ... 2021-09-21 20:07:46 - 20:13:42 SD 3 large gaps, mainly in beginning/middle 7/124 = 6% G ... 2021-09-21 21:40:02 - 21:45:58 SD 6 large gaps, mainly in end 13/124 = 10% G ... 2021-09-22 17:06:45 - 17:12:41 NA 1 large gap, mainly in beginning 4/51 = 8% G ... 2021-09-22 22:30:18 - 22:36:14 SD 2 large gaps, mainly in middle/end 10/51 = 20% G ... 2021-09-24 00:06:38 - 00:12:34 NA 4 large gaps, mainly in end 24/125 = 19% G ... 2021-09-24 03:58:28 - 04:04:24 SD 3 large gaps, mainly in end 38/125 = 30% G ... 2021-09-24 07:05:56 - 07:11:52 SD 3 large gaps, mainly in middle 71/125 = 57% ... Well-populated ORB with some data gaps 2021-09-24 08:40:07 - 08:46:09 SD 2 large gaps, mainly in beginning 95/128 = 74% ... Slant ORB crossing; some LE prxn 2021-09-24 10:14:20 - 10:20:16 SD 2 large gaps, mainly in beginning/middle 35/125 = 28% G ... 2021-09-24 13:22:08 - 13:28:04 SD 2 large gaps, mainly in middle/end 12/125 = 10% G ... 2021-09-24 15:42:08 - 15:48:09 NA 2 large gaps, mainly in middle 83/127 = 65% ... Atypical crossing in L-shell coverage; some ORB fluxes 2021-09-24 18:47:46 - 18:53:46 NA 4 large gaps, mainly in beginning 73/127 = 57% # ORB with intense IB crossing as dominant precipitation source 2021-09-24 21:52:26 - 21:58:23 NA 5 large gaps, mainly in end 54/126 = 43% G ... ELFIN A Inner EPD ----------------- ELFIN B Inner EPD -----------------