Tohban Report 04/24/22 - 04/30/22 Tohban Name: Colin Wilkins (updated [5/3/2022]) Special Notes ------------- - There was a minor storm on 4/27 in which Dst fluctuated for several following days, reaching similar peak negative values several times Abbreviations used: - ORB=Outer Radiation Belt (visible fluxes) - IRB=Inner Radiation Belt (visible fluxes) - PS=Plasma Sheet (visible fluxes) - 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 - SEP=solar energetic particles Automatic report generated 2022-05-02 15:00:06.137271 (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 ------------------------------------------------------ 24 0 203 32 -11 2.3 ... 24 3 321 73 0 1.7 ... 24 6 377 91 3 2.0 ... 24 9 113 19 -1 0.7 ... 24 12 75 14 -3 0.7 ... 24 15 151 30 -2 1.3 ... 24 18 165 30 -7 0.7 ... 24 21 94 17 -1 0.3 ... 25 0 88 15 3 0.3 ... 25 3 75 13 11 0.7 ... 25 6 167 27 10 1.3 ... 25 9 766 140 -13 2.0 ... 25 12 340 76 -10 0.7 ... 25 15 197 50 -5 1.0 ... 25 18 208 49 -7 2.0 ... 25 21 127 19 -4 0.7 ... 26 0 75 14 1 0.0 ... 26 3 57 7 14 0.0 ... 26 6 157 27 9 0.7 ... 26 9 75 14 3 0.3 ... 26 12 244 57 -2 1.0 ... 26 15 88 15 1 0.7 ... 26 18 66 11 4 0.3 ... 26 21 75 12 9 0.3 ... 27 0 184 42 11 1.7 ... 27 3 189 32 15 1.7 ... 27 6 167 31 18 1.3 ... 27 9 94 16 16 1.3 ... 27 12 1301 352 0 5.3 AE activation 27 15 1344 244 -24 4.3 Minor storm main phase; AE activation 27 18 710 147 -33 3.0 Minor storm main phase 27 21 491 112 -13 4.0 ... 28 0 733 154 -15 3.7 ... 28 3 593 109 -12 3.3 ... 28 6 855 227 -25 3.7 ... 28 9 531 120 -19 2.0 ... 28 12 449 77 -26 2.0 ... 28 15 675 148 -22 2.3 ... 28 18 851 151 -32 3.0 ... 28 21 856 144 -34 3.0 ... 29 0 702 178 -18 3.7 ... 29 3 774 135 -16 3.7 ... 29 6 466 99 -14 2.0 ... 29 9 938 156 -20 2.3 ... 29 12 755 135 -25 2.7 ... 29 15 416 87 -20 2.3 ... 29 18 559 115 -24 2.7 ... 29 21 485 121 -20 1.7 ... 30 0 1252 302 -16 4.3 AE activation 30 3 1061 186 -28 4.3 AE activation 30 6 560 101 -34 3.0 ... 30 9 472 114 -32 2.7 ... 30 12 194 36 -22 2.0 ... 30 15 813 200 -25 2.7 ... 30 18 170 34 -23 1.7 ... 30 21 467 99 -25 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 --------------------------------------------------------------------------------------------------------- 2022-04-27 03:00:29 - 03:06:25 ND 2 large gaps, mainly in middle/end 26/125 = 21% G ORB 2022-04-27 07:25:03 - 07:30:59 ND 5 large gaps, mainly in beginning 43/125 = 34% G ORB with some IRB 2022-04-27 10:16:17 - 10:22:18 NA 4 large gaps, mainly in middle 37/127 = 29% G ... 2022-04-27 14:50:30 - 14:56:27 NA 6 large gaps, mainly in end 31/126 = 25% G ... 2022-04-27 16:34:29 - 16:40:29 ND 5 large gaps, mainly in end 47/127 = 37% G ... 2022-04-27 19:25:21 - 19:31:26 NA 6 large gaps, mainly in beginning 58/129 = 45% T? This looks like an IRB collection; added manually to section 2022-04-27 21:10:19 - 21:16:15 ND 3 large gaps, mainly in end 54/125 = 43% G Some ORB 2022-04-29 00:58:07 - 01:04:11 NA 6 large gaps, mainly in end 24/127 = 19% G,#? Too many gaps but see high flux levels from the few samples there are 2022-04-29 02:31:26 - 02:37:42 NA 6 large gaps, mainly in beginning 36/131 = 27% G Some ORB but many gaps 2022-04-29 07:09:50 - 07:16:09 NA 4 large gaps, mainly in beginning 58/132 = 44% G,#? Many gaps but moderately see high ORB flux levels from the few samples there are (could be SEPs though?) 2022-04-29 14:48:21 - 14:54:40 NA 4 large gaps, mainly in end 76/133 = 57% ... ... 2022-04-29 16:32:23 - 16:38:42 ND 2 large gaps, mainly in middle 108/133 = 81% ... ORB with an IB likely; also possibly some solar energetic particle contamination at highest energies (low flux) 2022-04-29 19:23:26 - 19:29:49 NA No significant gaps 127/134 = 95% ... ORB with solar energetic particles likely contaminating highest channels (low flux) 2022-04-29 21:08:25 - 21:14:49 ND 3 large gaps, mainly in middle 96/134 = 72% G,# Looks like ORB with some localized prxn structures; solar energetic particle contamination is likely on the highest channels ELFIN B Outer EPD ----------------- Science Zone Range Zone Completeness Notes DL Completeness Flag Science Notes --------------------------------------------------------------------------------------------------------- 2022-04-26 13:10:58 - 13:16:54 ND 2 large gaps, mainly in middle/end 27/127 = 21% G Some ORB/maybe IRB; big gaps 2022-04-26 14:30:05 - 14:36:01 NA 3 large gaps, mainly in middle/end 46/127 = 36% G Looks like quiescent ORB 2022-04-26 16:14:10 - 16:20:06 ND 3 large gaps, mainly in middle/end 41/127 = 32% G Some ORB with big gaps ELFIN A Inner EPD ----------------- 2022-04-27 ~1925.5 to ~1933: IRB with diffuse high energy electrons (maybe proton contamination?) ELFIN B Inner EPD -----------------