Progetto Alternanza Scuola-Lavoro
Alternanza Scuola-Lavoro is a project of collaboration between Liceo Scientifico "Galileo Galilei" of Catania, Liceo Scientifico "G.B. Vaccarini" and the INAF-Osservatorio Astrofisica di Catania. For two weeks (18 Febbraio - 1 Marzo) seven high school student worked with the Catania Solar Group taking solar observations and analysing data. They produced the following table filled with information concerning the 50 strongest solar flares from Cycle 24.
| ID | Class | AR | Date | Start | Max | End | Latitude | Longitude | Filaments | Sigmoids | Preceding polarity | Following polarity | Area (mhm) | Number of sunspots and pores | Zurich class | OACt obs Halpha |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | X9.3 | 12673 | 06/09/2017 | 11:53:00 | 12:02:00 | 12:10:00 | 08S | 33W | / | Y | N- | S+ | 085.50 | 31+14 | D | Y |
| 2 | X8.2 | 12673 | 10/09/2017 | 15:35:00 | 16:06:00 | 16:31:00 | 09S | 90W | N | N | N- | S+ | / | / | ||
| 3 | X6.9 | 11263 | 09/08/2011 | 07:48:00 | 08:05:00 | 08:08:00 | 18N | 82W | N | N | - | + | / | / | ||
| 4 | X5.4 | 11429 | 07/03/2012 | 00:02:00 | 00:24:00 | 00:40:00 | 17N | 15E | N | N | + | - | / | / | ||
| 5 | X4.9 | 11990 | 25/02/2014 | 00:39:00 | 00:49:00 | 01:03:00 | 12S | 58E | Y | N | - | + | 012.00 | 02+00 | J | Y |
| 6 | X3.3 | 11890 | 05/11/2013 | 22:07:00 | 22:12:00 | 22:15:00 | 09S | 36E | N | N | + | - | / | / | ||
| 7 | X3.2 | 11748 | 14/05/2013 | 00:00:00 | 01:11:00 | 01:20:00 | 13N | 74E | / | / | + | - | 009.00 | 04+04 | D | Y |
| 8 | X3.1 | 12192 | 24/10/2014 | 21:07:00 | 21:41:00 | 22:13:00 | 13S | 14W | N | N | + | - | 256.25 | 42+53 | F | Y |
| 9 | X2.8 | 11748 | 13/05/2013 | 15:48:00 | 16:05:00 | 16:16:00 | 12N | 67E | / | / | / | / | / | / | ||
| 10 | X2.7 | 12339 | 05/05/2015 | 22:05:00 | 22:11:00 | 22:15:00 | 12N | 56E | / | / | - | + | / | / | ||
| 11 | X2.3 | 11875 | 29/10/2013 | 21:42:00 | 21:54:00 | 22:01:00 | 07N | 80W | N | N | - | + | 009.75 | 02+03 | E | Y |
| 12 | X2.2 | 11158 | 15/02/2011 | 01:44:00 | 01:56:00 | 02:06:00 | 19S | 18W | N | N | + | - | 055.75 | 23+15 | E | |
| 13 | X2.2 | 12087 | 10/06/2014 | 11:36:00 | 11:42:00 | 11:44:00 | 18S | 57E | / | / | + | - | / | / | ||
| 14 | X2.2 | 12297 | 11/03/2015 | 16:11:00 | 16:22:00 | 16:29:00 | 15S | 24E | Y | N | + | - | 037.25 | 08+09 | D | Y |
| 15 | X2.2 | 12673 | 06/09/2017 | 08:57:00 | 09:10:00 | 09:17:00 | 08 S | 33W | N | / | - | + | 085.50 | 31+14 | D | Y |
| 16 | X2.1 | 11283 | 06/09/2011 | 22:12:00 | 22:20:00 | 22:24:00 | 14N | 18W | N | N | + | - | / | / | ||
| 17 | X2.1 | 11882 | 25/10/2013 | 14:51:00 | 15:03:00 | 15:12:00 | 08 S | 70E | N | N | - | + | 010.50 | 04+02 | D | Y |
| 18 | X2.0 | 12192 | 26/10/2014 | 10:04:00 | 10:56:00 | 11:18:00 | 12S | 46W | N | N | - | + | / | / | ||
| 19 | X2.0 | 12192 | 27/10/2014 | 14:12:00 | 14:47:00 | 15:09:00 | 12S | 58W | N | N | - | + | / | / | ||
| 20 | X1.9 | 11302 | 24/09/2011 | 09:21:00 | 09:40:00 | 09:48:00 | 13N | 45E | N | N | / | / | / | / | ||
| 21 | X1.9 | 11339 | 03/11/2011 | 20:16:00 | 20:27:00 | 20:32:00 | 20N | 80E | N | N | + | - | / | / | ||
| 22 | X1.8 | 11283 | 07/09/2011 | 22:32:00 | 22:38:00 | 22:44:00 | 14N | 19W | Y | N | + | - | / | / | ||
| 23 | X1.8 | 11598 | 23/10/2012 | 03:13:00 | 03:17:00 | 03:21:00 | 12S | 52E | N | N | / | / | 023.25 | 10+05 | D | |
| 24 | X1.8 | 12242 | 20/12/2014 | 00:11:00 | 00:28:00 | 00:55:00 | 2OS | 30W | N | N | N- | S+ | / | / | ||
| 25 | X1.7 | 11402 | 27/01/2012 | 17:37:00 | 18:37:00 | 18:56:00 | 29N | 79W | N | N | N+ | S- | 004.00 | 02+01 | D | Y |
| 26 | X1.7 | 11748 | 13/05/2013 | 01:53:00 | 02:17:00 | 02:32:00 | 12N | 67E | N | N | / | / | / | / | ||
| 27 | X1.7 | 11882 | 25/10/2013 | 07:53:00 | 08:01:00 | 08:09:00 | 8S | 70E | N | N | - | + | 010.50 | 04+02 | D | Y |
| 28 | X1.6 | 12158 | 10/09/2014 | 17:21:00 | 17:45:00 | 18:20:00 | 16N | 09E | N | N | N+ | S- | 043.50 | 08+22 | D | Y |
| 29 | X1.6 | 12192 | 22/10/2014 | 14:02:00 | 14:28:00 | 14:50:00 | 13S | 14W | N | N | - | + | 256.25 | 42+53 | F | Y |
| 30 | X1.6 | 12205 | 07/11/2014 | 16:53:00 | 17:26:00 | 17:34:00 | 20N | 70E | N | N | / | / | / | / | ||
| 31 | X1.5 | 11166 | 09/03/2011 | 23:13:00 | 23:23:00 | 23:29:00 | 11N | 15W | N | N | + | - | / | / | ||
| 32 | X1.5 | 12087 | 10/06/2014 | 12:36:00 | 12:52:00 | 13:03:00 | 20S | 90E | / | / | / | / | 009.50 | 04+06 | D | Y |
| 33 | X1.4 | 11302 | 22/09/2011 | 10:29:00 | 11:01:00 | 11:44:00 | 20N | 90E | / | / | / | / | 035.75 | 10+07 | F | |
| 34 | X1.4 | 11520 | 12/07/2012 | 15:37:00 | 16:49:00 | 17:30:00 | 17S | 08W | N | N | - | + | / | / | ||
| 35 | X1.3 | 11430 | 07/03/2012 | 01:05:00 | 01:14:00 | 01:23:00 | 19N | 01W | N | N | + | - | 077.75 | 28+11 | E | |
| 36 | X1.3 | 12035 | 25/04/2014 | 00:17:00 | 00:27:00 | 00:38:00 | 15S | 50W | Y | N | + | - | 015.00 | 4+28 | E | |
| 37 | X1.3 | 12673 | 07/09/2017 | 14:20:00 | 14:36:00 | 14:55:00 | 08S | 48W | N | N | N- | S+ | 069.25 | 20+9 | D | Y |
| 38 | X1.2 | 11748 | 15/05/2013 | 01:25:00 | 01:48:00 | 01:58:00 | 12N | 30E | N | N | N+ | S- | 010.00 | 5+12 | D | |
| 39 | X1.2 | 11944 | 07/01/2014 | 18:04:00 | 18:32:00 | 18:58:00 | 09S | 07E | N | Y | + | - | 125.00 | 35+36 | F | Y |
| 40 | X1.1 | 11429 | 05/03/2012 | 02:30:00 | 04:09:00 | 04:43:00 | 18N | 47E | N | Y | + | - | 058.50 | 16+06 | D | Y |
| 41 | X1.1 | 11515 | 06/07/2012 | 23:01:00 | 23:08:00 | 23:14:00 | 15S | 41W | Y | N | + | - | 061.00 | 21+24 | F | Y |
| 42 | X1.1 | 11890 | 08/11/2013 | 04:20:00 | 04:26:00 | 04:29:00 | 10S | 04E | Y | Y | + | - | 061.25 | 21+49 | E | Y |
| 43 | X1.1 | 11890 | 10/11/2013 | 05:08:00 | 05:14:00 | 05:18:00 | 10S | 30W | Y | N | + | - | 061.25 | 21+49 | E | |
| 44 | X1.1 | 12192 | 19/10/2014 | 04:17:00 | 05:03:00 | 05:48:00 | 13S | 40E | N | N | + | - | 176.25 | 40+33 | F | |
| 45 | X1.0 | 11875 | 28/10/2013 | 01:41:00 | 02:03:00 | 02:12:00 | 07N | 67W | N | N | - | + | 033.75 | 5+7 | E | Y |
| 46 | X1.0 | 11893 | 19/11/2013 | 10:14:00 | 10:26:00 | 10:34:00 | 14S | 69W | N | N | N- | S+ | 016.00 | 7+4 | E | Y |
| 47 | X1.0 | 12017 | 29/03/2014 | 17:35:00 | 17:48:00 | 17:54:00 | 10N | 02E | N | N | - | + | 008.25 | 3+9 | D | |
| 48 | X1.0 | 12087 | 11/06/2014 | 08:59:00 | 09:06:00 | 09:10:00 | 17S | 66E | Y | N | - | + | 009.50 | 4+6 | D | Y |
| 49 | X1.0 | 12192 | 25/10/2014 | 16:55:00 | 17:08:00 | 18:11:00 | 13S | 77W | N | Y | + | - | 066.00 | 11+12 | F | |
| 50 | M9.9 | 11936 | 01/01/2014 | 18:40:00 | 18:52:00 | 19:03:00 | 16S | 36W | / | N | + | - | / | / |
