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Table 1 List of soft X-ray flares observed by GOES (considering initial conditions) and the local time of possible observation in Mt. Chacaltaya

From: Search for solar neutrons at Mount Chacaltaya associated with M- and X-class flares during the rising period of solar cycle 24

Conditions Solar flare Observation site
Date Start t P a Class Position \({t}_{0}^{~\mathrm {b}}\) \(\theta _{\odot }^{~~\mathrm {c}}\) Air mass d α e
  (UT) (UT)    (UT-4) [deg] [g/cm 2 ] (NM-64)
2005 Sep 07 f 17:17 17:40 X17.0 S06E89 13:17 28 612 1.7 ± 0.2
2010 Oct 16 19:07 19:12 M2.9 S20W26 15:07 42 724 1.7 ± 0.3
2010 Nov 06 15:27 15:36 M5.4 S19E58 11:27 12 551 1.8 ± 0.2
2011 Feb 13 17:28 17:38 M6.6 S20E04 13:28 10 541 1.6 ± 0.3
2011 Feb 14 17:20 17:26 M2.2 N56W18 13:20 9 540 1.8 ± 0.2
2011 Aug 03 13:17 13:48 M6.0 N16W30 09:17 60 773 1.9 ± 0.3
2011 Sep 24 12:33 13:20 M7.1 N14E45 08:33 59 792 1.4 ± 0.2
2011 Sep 24 17:19 17:25 M3.1 N15E56 13:19 21 547 1.3 ± 0.2
2011 Sep 24 19:09 19:21 M3.0 N15E54 15:09 43 627 1.6 ± 0.2
2011 Sep 24 20:29 20:36 M5.8 N16E54 16:29 62 786 1.6 ± 0.2
2011 Sep 25 15:26 15:33 M3.7 N16E43 11:26 21 552 1.5 ± 0.1
2011 Sep 25 16:51 16:58 M2.2 S28W75 12:51 17 543 1.7 ± 0.3
2011 Sep 26 14:37 14:46 M2.6 N14E30 10:37 30 580 1.6 ± 0.2
2011 Oct 02 17:19 17:23 M1.3 N09W56 13:19 19 570 1.6 ± 0.2
2011 Nov 03 20:16 20:27 X1.9 N22E63 16:16 58 716 1.5 ± 0.2
2012 Mar 02 17:29 17:46 M3.3 N16E83 13:29 14 543 1.7 ± 0.2
2012 Mar 05 19:10 19:10 M2.1 N14E44 15:10 37 617 1.9 ± 0.2
2012 Mar 10 17:15 17:44 M8.4 N18W34 13:15 15 543 1.9 ± 0.2
2012 Mar 13 17:12 17:41 M7.9 N17W60 13:12 16 543 1.7 ± 0.4
2012 Mar 14 15:08 15:21 M2.8 N14E05 11:08 27 558 1.8 ± 0.2
2012 Jun 03 17:48 17:55 M3.3 N16E38 13:48 43 638 1.8 ± 0.3
2012 Jun 06 19:54 20:06 M2.1 S19W05 15:54 63 824 1.2 ± 0.2
2012 Jul 08 16:23 16:32 M6.9 S17W74 12:23 39 615 1.7 ± 0.2
2012 Jul 12 15:37 16:49 X1.4 S15W01 11:37 41 624 1.6 ± 0.3
2012 Oct 20 18:05 18:14 M9.0 14:05 27 554 1.3 ± 0.1
2012 Oct 22 18:38 18:51 M5.0 S12E61 14:38 35 576 1.7 ± 0.2
2012 Nov 21 15:10 15:30 M3.5 N06E05 11:10 17 564 1.7 ± 0.2
2013 Apr 05 17:34 17:48 M2.2 N08E81 13:34 27 565 1.7 ± 0.2
2013 Apr 12 19:52 20:38 M3.3 N20E41 13:52 55 736 1.7 ± 0.2
2013 May 13 15:48 16:05 X2.8 N08E89 11:48 36 602 1.9 ± 0.2
2013 May 22 13:08 13:32 M5.0 N15W70 09:08 62 813 1.8 ± 0.2
2013 Aug 17 18:16 18:24 M3.3 S07W30 14:16 38 615 2.0 ± 0.3
  1. aGOES SXR maximum peak time. bFlare onset in local time. cSolar zenith angle at the onset time. dLine-of-sight air mass at the onset time. eNormalization factor for the NM-64. fThe solar neutron event reported by Sako et al. (2006) is also included as a reference for calculations.