• Events:

    • LargeSEP

    yyyy-mm-ddflare class
    (x 10^-6 W/m^2)    		CME speedSEP flux (J_p)EP/startEP/remarkCME/start/ widthFlareCoronal Wave:
    2010-08-03u2210.0478NO11:12/93Start: 11:40:00
    2010-08-144.412050.158309:48Ycheck if EP is associated with flare10:12/HALOStart: 09:38
    2010-08-184.514710.048605:02Y05:48/255Start: 04:45:00
    2011-01-28136060.051100:00Y01:25/288
    2011-01-28C1.54990.032611:42:09 UTAn arc rises slowly and then erupts with some of material falls back on the SW disk10:36/280Start: 10:05:00
    2011-02-15X2.2(220)6690.038208:42:10Filament/surge eruption from an active region hours after an X2 flare, still on the decreasing flank of the GOES lightcurve.02:24/HALOStart: 01:44
    2011-03-07M3.73721251.01219:00Y20:00/HALOSrart: 19:43
    2011-03-21u13410.2427NO02:24/HALO
    2011-05-11B.1735????01:43Filament eruption (and two-ribbon flare), transitioning into a clear "bubble-like" coronal propagating front (EIT wave) as the eruption transitions to a CME.check SEP association02:48/Partial HaloStart: 02:23:00
    2011-06-05uU (511 km/s)0.072401:59:56 UT!!!This eruption may account for a slow proton event. There is no trace of this event in GOES X-ray light curves. It's a asymmetric filament eruption, untwisting05:27 (Cactus)No
    2011-06-07M2.5 (25)12551.57905:35:56An M2.5 flare associated with the largest, most impressive filament eruption seen to date with AIA. Large amounts of chromospheric material are thrown upward (much is part of a CME), with subsequently much falling down again and creating impact brighteninings over half a solar radius away.
    		06:49/HALOStart:06:21Y
    2011-06-11u (B2.8 ????)U (431????)0.04608:14:56Quiescent filament lifting off gently. LASCO data gap precluded a CME entry. 193 A movie displays a clear cavity and it happens at the limb, with clear twist signature, U shape tornado prominence with swirling motion, excellent case for Prominence and Cavity studycheck SEP association09:12:10/14??Start: 08:39:00
    2011-08-02M1.4 (14)7120.039905:20:16Y06:36/288Start: 05:19
    2011-08-04M9.3 (93)13151.7903:30:00Splendid filament eruption and coronal EUV wave at the M9 flare. The wave covers about 3/4 of the entire solar disk.04:12/HALOStart: 03:41
    2011-08-08M3.5(35)13430.0527NO18:20/237Start: 18:00
    2011-08-09X6.9 (690)16100.553507:56Ymovie08:12/HALOStart: 07:48Start: 07:45:55; End: 08:38:43
    2011-09-06M5.3 (53)7820.0413NO02:24/HALOStart: 01:35A spectacular coronal wave produced by an M-class flare.
    2011-09-06X2.1 (210)5750.136822:01:52Yeruption, southword23:05/HALOStart: 22:12
    2011-09-22X1.4 (140)1905 374???0.272815:10:04A filament erupts possibly after destabilzation following the erutpion that led to the X-class flare. A significant amount of material is seen drainiing back toward the solar surface.which of two CMEs? Bold one??10:48/HALO 18:36/42 ???Start: 10:29Start: 08:20:04
    The eruption which lead to the X-class flare also triggered a global scale coronal wave propagating from the eruption site.
    2011-11-03X1.9 (190)9910.049220:00:16Y23:30/HALOStart: 20:16
    2011-11-261.29331.09305:30:00This event may lack an explosive appearance, but it apparently corresponds to the interplanetary type II burst that has been reported, which seems to be related with a particle event. See the latest event graphics.07:12/HALOStart: 06:09
    2011-12-25M4.0 (40)3660.047917:59:44Eruption (!NO filament Eruption)Check the association between EP and CME? (21:00)18:48/247Start: 18:11
    2012-01-23M8.7 (87)2175153.200:00:04This movie contains two episodes of eruptions producing two halo CMEs. The first one is less noticeable, until 02:30 or so, showing opening up of large-scale structures. The second event involves the eruption of a clear filament, whose activation already started during the first episode. The halo CME from the second event is more northward and much faster, overtaking the second one by 04:12 UT. The 171 movie is spectacular, as it appears to show loops rapidly expanding or opening just prior to the eruption. The region is also a nice sigmoid.04:00/HALOStart: 03:38
    2012-01-27X1.7 (170)250822.7117:06:04A small flux rope undergoes kink instability and produced a major eruption; an X-class flare followes the eruption in the same place.18:27/HALOStart: 17:37Start: 18:06:00 I am just adding difference movies for the X1.7 flare/halo CME associated with the largest SEP event in Solar Cycle 24. I choose the coronal wave category because of the clear large-scale disturbances.
    2012-03-04M2.0 (20)13060.0384NO11:00/HALOStart: 10:29Start: 2012-03-04T10:10:43
    2012-03-07X1.3 (130)182582.9301:0001:30/HALOStart: 01:05Start: 00:00:04 Very spectacular event. STEREO-B data show that the propagation is more pronounced in latitudinal than in longitudinal directions. Note that the X5.4 flare was followed by a X1.3 flare, which was also associated with a coronal wave, mostly in the soutwestward direction.
    2012-03-13M7.9 (79)188410.9116:54:40 17:14:5617:36/HALOStart:17:12A large-scale coronal EUV wave was generated in association with the M7.9 flare and a fast CME (1900 km/s measured by LASCO). The precursor to this large eruption was a smaller eruption, a bulging volume toward the southwest of the active region, starting at about 16:05. The main eruption occurred at 17:05.
    2012-05-17M5.1 (51)15823.11602:33After the main eruption triggered by an M-class flare, a prominence which got stretched and fell down as coronal rain (see previously annotated event), appears to be thrown upwards again. This time it partially erupts and partially reconnects with a surrounding field. The event in LASCO includes the M-flare before this event, but a second event, probably relating to this filament eruption, is seen after the main burst.01:48/HALOStart: 01:25
    2012-05-26u19660.105120:16:04???????20:57/HALO
    2012-06-14u M1.9??U ????9780.141912:00:36check the CME association????14:12/HALOStart:12:52??
    2012-07-06X1.1 (110)18280.488522:52:0023:24/HALOStart:23:01
    2012-07-08M6.9 (69)14950.214816:20Y16:36/partal HaloStart:16:23
    2012-07-121408851.68313:30:00Filament eruption near SE limbMcCauley: 13:3016:48/HALOStart:15:37
    2012-07-17M1.7 (17)9581.581NO13:48/Partial HaloStart: 12:03
    2012-07-19M7.7 (77)16311.542Start: 2012-07-18T23:00:12 End: 2012-07-19T04:10:12This occurs just before the eruption that led to the M7.7 flare of AR 11520.Filament Activation/ movie it seems that same of the materal lift off05:24/HALOStart: 04:17
    2012-07-23u20030.219102:00:00STEREO-A data (171A) show that this was associated with a very fast EUV wave. The SEP event at Earth was likely produced by the CME shock from this event. Very large, dynamic event. Unfortunately the eruption took place behind the sun, so it can not be seen in AIA.No flares inside FOV.02:36/HALOStart: 2012-07-23T01:31:06 End: 2012-07-23T03:28:42
    2012-08-31C8.414420.261717:00:03The filament seems to have completely erupted and the flare ribbons are extended. Some filament materials are seen to come back, at 304 A. Note that the compact active region has become part of the flare ribbon. The dark filament material shows a lot of twisted, dynamic structure.20:05/HALOStart: 19:45:00Start: 2012-08-31T19:15:54
    2012-09-27C3.79470.2716Start: 2012-09-27T21:28:03 End: 2012-09-28T01:42:03Eruption of a beautiful sigmoid on the W disk and the following postflare arcade. Very fast, dynamic eruption. The material seems to get caught up and twisted in the northern part of the sigmoid, quickly breaks up, and then gets twisted again at the southern part of the sigmoidhttp://www.lmsal.com/hek/her?cmd=view-voevent&ivorn=ivo://helio-informatics.org/FE171_AnnaMalanushenko_20120929_0307472012-09-28: 00:12/HALOStart: 2012-09-27T23:36:00 End: 2012-09-28T00:34:00Start: 2012-09-27T23:11:06 End: 2012-09-28T00:53:54
    2012-11-08u9720.032114:10:03A prominence experience slow rise and evolves into eruption. Part of the western leg seems to detach, remain rooted, and activate. n 171, the prominence seems to run into something causing it to slow and twist before conning to rise.No flares inside FOV.11:00/HALO
    2013-03-16uU (786)0.115911:58:03????14:48
    2013-04-11u(861) 9192.93206:50An impulsive eruption from AR 11719 sends a global blast wave propagating through much of the solar corona. The aftermath of this eruption is the appearance of post-eruption arcade loops.07:24/HaloStart: 07:16:00Yes
    2013-04-20C1.4??594 (741)0.0572Njama CME s takava skorost???06:00/Partial HaloStart:07:54:00
    2013-05-15X1.2 (120)13660.523400:20:03A large flare, (flux rope) eruption, and coronal EUV wave, likely associated with a CME.McCauley: 01:4001:48/HALOStart: 01:25 Start: 00:20:03 A large flare, (flux rope) eruption, and coronal EUV wave, likely associated with a CME.
    2013-05-22M5.0 (50)146661.8412:40:48Small, Slow and Intermediate Eruption13:25/HALOStart: 13:08Start: 2013-05-22T12:31:30
    2013-06-21M2.9 (29)19000.122303:02:00Movie: 2013-06-21…..03:12/>207Srart: 02:30:00Start: 02:21:30; End: 03:39:54; Location: -869, -268
    2013-06-22C1.54770.1502NO18:24/262Srat: 17:36
    2013-09-29C1.211793.20821:00:35It is probably Earth-directed, and several heliospheric predictions will be made. The associated flare is C1.2. A large filament between two ARs erupts, producing nice two-ribbon brightenings. It does not seem to produce an EIT wave, probably because of its gradual (rather than impulsive) acceleration profile.22:12/HALOStart: 21:43:00Start: 2013-09-29T21:01:54
    2013-10-28M5.1 (51)12010.070102:42:03 AMThis event is just too majestic to annotate it once. Where do I start? A massive flare? Check. A large prominence eruption? Check. A coronal dimming nearby? Check. A coupled explosion in an AR nearby? Check04:48/Partial HaloStart:04:32Start: 2013-10-28T04:26:18
    2013-11-02C8.28280.048904:00:03The C8 flare from AR 11885 is quite eruptive, but the ejection is largely deflected south. Interestingly about 18 minutes before the flare onset, we see an indication of big eruption over the west limb, which must be from a region behind the west limb, most likely what used to be AR 11875, now about W130 or so. It is not clear whether the eruption from AR 11885 contributed to the spectacular halo CME (see LASCO C2 difference image of 05:24-05:12, which indicates a shock at various places).04:48/HALOStart:04:40
    2013-11-061810330.057823:40:00Medium, Fast and Short Eruptionmovie, behind the disk???2013-11-06/00:00/HALOStart: 23:44:00Start: 2013-11-06T23:31:30
    2013-11-19X1.0 (100)7400.097410:16:00Medium, Fast and Intermediate Eruption10:36/HALOStart: 10:14AR11893 produces an X flare, which is followed by an EUV wave affecting much of the western limb.
    2013-12-26u13360.0483LASCO observed a bright halo CME at 2013/12/26 03:12 UT. The source region seems to be at approximately S10 E15 from STEREO-B, which is 151 degrees behind the Sun-Earth line. So AIA has recorded an eruption from 76 degrees behind the limb. No flare is associated, of course.03:24/HALONo
    2013-12-28C9.311180.589617:39Yesmovie17:36/HALOStart: 17:53
    2014-01-06u14020.950707:30:35The eruption should be from a far-side region since there is hardly an increase in GOES soft X-ray flux. A bright prominence eruption, dimming and loop oscillations are clearly seen. This is associated with a proton event that extends to > 100 MeV. Strong SEP event obviated by the particle hits in the LASCO data.08:00/HALONo flares inside FOV.
    2014-01-07X1.2 (120)183036.6717:50:23 End: 19:50:23This is a major eruption with a very fast (>2000 km/s) CME. The LCPF is faster than 1000 km/s as measured laterally. It interacted with quiescent regions near the south pole after the CME passed beyond the limb.18:24/HALOStart: 18:04
    2014-02-20M3.0 (30)9480.263307:22:00Medium, Fast and Long Eruption08:00/HALOStart:07:26A large scale coronal wave associated with the M3 flare on the west limb.
    2014-02-25X9.4 (490)21470.56600:40:03A filament destabilizes and is quickly ejected out of the corona. Mid-eruption the filament looks like a bottle opener. Associated with the ejection of the filament is a global coronal wave and flare loops.01:25:50/HALOStart:00:39
    2014-03-29X1.0 (100)5280.055217:28 17:39 17:20Flare in a mid-sized AR associated with a large coronal perturbation, mostly in northward directions. This event is similar to another that occurred early in the day in the same region.3 eruptions movie18:12/HALOStart:17:35
    2014-04-18M7.3 (73)12031.04612:54:00Small, Slow and Intermediate Eruption13:25:51/HALOStart:12:31
    2014-09-01u ?C1.419010.0818No11:12/HALOStart:10:20
    2014-09-10X1.6 (160)12670.580816:30:35This eruption resulted in an Earth-directed CME, which arrived at L1 46 hours later. The active region (AR 12158) was not so extended, but it contained a delta configuration. The eruption accompanied other expected signatures (such as LCPF, dimming, loop oscillations, etc.)for this magnitude.18:00/HALOStart:17:21The big eruption from AR 12158 produced a spectacular, nearly circular LCPF. Some noted a counter-clockwise rotation, but can that be a spurious effect of running difference images? Start:16:50:23
    2015-03-15C9.17190.032500:30:35This is the origin of the St. Patrick's day storm, which recorded Dst ~ -220 nT. The event started off with a jet or surge (C2.4 flare), which seemed to hit a larger filament and then let it go. The main eruption was associated with a C9.1 LDE.01:48/HALOStart:01:15
    2015-05-12C2.67720.154701:40:03The AR loops in the foreground seem mostly unperturbed by this filament eruption.02:48/Partial HaloStart: 02:15
    2015-06-18M1.2 (12)17140.397800:10:11Beautiful eruption showing helical motions in two steps. From above, the mtion appears to be clockwise. At higher temperatures, there was a supra arcade dwonflow (SAD).02:25:50/Partial HaloStart:00:33
    2015-06-21uU (?1366)0.9349T00:50:03A major flare from AR 12371 occurred with a large scale eruption and a global EUV wave.Note this AR is surrounded by a semi-circular coronal hole to its west, an interesting geometry.02:36/HALOStart: 01:02:00???
    2015-06-22u M6.5 ???U (? 1209)1.81716:00:03 15:30A filament near AR 12371 erupted at 6:00 UT, Jun 22, about 12 hours after the major M6.5 flare from that AR which pertrubed the filament, and might destablized it and led to its final eruption. A potentially sympathetic eruption. Occurred at 22:20 UT, shortly after the M6.5 flare from AR 12371 at 18:00.the times according HEK are confusing18:36/HALOStart: 17:39The fast mode wave is driven by the eruption that caused the M6.5 flare: Start:18:03:15
    2015-06-24uu0.0346
    2015-06-25M7.9 (79)16270.272608:02Large, Fast and Long Eruptionsigmoid08:36/HALOStart: 08:02
    2015-07-01u14350.045Start: 14:19:42 End: 14:59:42 HEK databehind the limb??14:36/HALOno flare in FOV
    2015-07-19C2.1(S25W62)782????06:45The filament underwent several hours of activationStart:09:22
    Start: 2015-07-18T22:15:34 End: 2015-07-19T04:15:34A filament in a quiescent region lifted off, mostly radially to northwest, producing a pair of separating ribbon of brightening (not quite an X-ray flare). Southern part is seen to fall back causing another brightening. As reported near real-time, this is part one of the sequence of events.
    2015-09-20(M2.1) 2112390.0402No18:12/HALOStart: 17:32:00; End:18:29:00
    2015-10-29u5300.449NO02:36/259Actual source region S10W129
    Start: 2015-10-29T02:11:29
    End: 2015-10-29T03:18:41
    2015-11-09M3.9 (39)10410.0675NO13:25:50/142 (patial HALO)Start: 12:49:00 End: 13:28:00
    2016-01-012317300.192922:52:00/HEK data (22:20??)https://twitter.com/halocme/status/683197503504683008; https://twitter.com/halocme/status/683194474999119873; https://twitter.com/cosmic_jet/status14:25:50/142 (patial HALO)Start: 2016-01-01T23:10:00; End: 2016-01-02T01:20:00; Location (degrees): 82, -25Start: 2015-10-29T02:11:29
    End: 2015-10-29T03:18:41
    check the associations
    needs clarification
    Case studies2015-07-19

    EP_SC24

    yyyymmddlatlongFilament Eruption (FE)McouleyAREruption TYPEmax V (km/s)START (UT)ENDFLARE CALSSFlare onsetFlare peakCME onset (UT)CME velocity (km/s)m/s^2Angular
    Width [deg]     		PA
    20108141752FEN111093F09:1810:18C4.409:3810:051205-43360halo
    20108181888Two EPs in AR 11099; 1st bright EP started northwestward at 04:36 and faint 2nd one started southwestward at 05:02N211099P?04:36C4.504:4505:481471-20184255
    2010982187Huge EP in AR 11105 well visible as FE near STEREO A central meridianN311105FC3.323:0523:33818-19.36147281
    20111281688Two consecutive FEs in AR 11149; 1st spectculer one (00:00-03:59) followed by M-class flare associated with AR 11149 ( This was the first large eruption in a sequence of several ) and 2nd large one (03:38-06:10) followed by C-class flare associated with AR 11149Y411149F00:00M1.300:4401:03Y (01:36)606-20119288
    2011215-2010FE in AR 11158 (00:07-01:28) northward surge-like eruption associated with X2 flare (01:26-02:29)Y511158C00:07X201:4401:56N669-18360halo
    2011373048Massive FE (19:00-20:53), spectacular eruption of a massive filament seem to happen before the M-class flare (19:43-20:01) in AR 11164. An oscillation of loop tops (19:20 - 21:01) and coronal wave (19:31 - 22:59) followed filament eruption. Halo CME (2125 km/s)Y611164F19:0020:53M3.719:4320:12Y(20:12)2125-60360halo
    20115111785Two FEs, first FE (01:31:57-03:59:5) with bright leading coronal propagating front (EIT wave), and post-eruption cooling loop arcade; second FE (01:43:55-03:55:55) with dark leading coronal propagating front, and two-ribbon flare, transitioning into a CMEY7F01:4303:59B8.102:2302:43Y (02:48)7453.3225320
    201167-2154Huge FE (05:36-10:32) associated with M2.5 flare (06:16-06:59); Large amounts of the lifted filament material (much is part of a associated CME), falling down impact brighteninings over half a solar radius away.Y811226P05:3610:32M2.506:1606:41Y (06:49)12550.3360Halo
    2011841936Two FEs: first FE (03:30-09:00) associated with M-flare in AR 11261, coronal wave and Halo CME; second large FE (03:50-08:00) take place during M-flare and it is similar to the 2011 June 07 event.
    Twist – Yes    		Y911261F03:3009:00M903:4103:57Y (04:12)1315-41360Halo
    201196147Filament Eruption; one footpoint is in the flare siteN10?solar monitor?????X2.122:1222:205571.1360haloAcceleration is uncertain due to either poor height measurement or a small number of height-time measurements
    201211932-22FE (12:50 - 17:00), A large filament channel (seems the flux rope cavity itself) erupted, causing ribbons brightenings expanding outward, and disturbance/oscillation in the ambient corona.. M3.2 flare in AR 11402 and halo CME (1120 km/s)Y11F12:50:00 PMM213:4416:0516:00112054360halo
    20121272771FE (17:06-19:32), A small flux rope undergoes kink instability and produced a major eruption; an X-class flare followes the eruption in the same place. Two coronal waves (17:11-19:08; 18:06-19:20). Halo CME (2508 km/s)12F17:06:04X17:3718:37halo2508165360halo
    2012451829FE (20:40-22:40) in AR 11451, C1.5 flare in AR 11450, halo CME (828 km/s)13F20:40C1.520:49u828-2.6360halo
    2012492065FE (11:50-17:20), i.e. started before C3.9 flare in AR 11451. CME (299 km/s)y14F11:50C3.912:1212:4412:36921-2.8360halo
    2012831-19-42FE (17:00-22:18) to have completely erupted and the flare ribbons are extended. Some filament materials are seen in 304 A to come back. C8.4 flare on AR 11562 and halo CME (1442 km/s )y15F17:00C8.419:4520:4320:0014422360halo
    2012927634negligible FEy16F21:28C3.723:3623:572012/09/28 00:12947-27360halo
    20132622-19Two FEs. First fast FE (00:00-01:12) appear in the beginning of C8.7 flare in AR 11667. Second enormous FE (00:00-04:36) is produced by C8.7 flare. This large FE is followed by a coronal wave, which is in turn followed by another, much fainter eruption in a neighboring AR. CME (527 km/s)y1711667F00:0001:00C8.700:0400:2100:241867-8.2>2714
    201383013-43FA (22:00-04:00) before the C8.3 flare in AR 11836. Halo CME (949 km/s)n181183622:0004:00C8.302:0402:46949-17360halo
    20139291043Two neighbouring FEs. Upper one (29T20:30-30T00:00) between two ARs (11850 and 11858) produced nice two-ribbon brightenings. Lower FE (21:00-00:00) is associated with C1.2 flare and halo CMEy1911850F21:0023:00C1.221:4323:3922:121179-5.3360halo
    20131025-3-68FA - A power X1.7 flare occurs in a compact AR 11882 towards the E limb in the S hemisphere. A coronal propagating front can be seen to proceed over a large opening angle on disk and over the limb. A filament in the S hemisphere activates (07:20-12:48), potentialy in response to the coronal perturbation. Halo CME (587 km/s)n2011882F07:2012:48X1.707:5308:0108:12587-13.7360halo
    20131028871Massive FE (02:42-08:22) associated with M5.1 flare and CME (1201 km/s)y21F02:4208:22M5.104:3204:4104:481201-45.2156315
    2014225-12-82A fast FE (00:40-01:50) associated with global coronal wave, flare loops and high speed halo CME (2147 km/sec).y22F00:40X100:3900:4901:252147-158360halo
    20144214-53A filament near to NE limb undergo activation between 10:48 and 12:44 FE represented by sigmoid flow along a filament and lifting of one half of filament. A sigmoid FE take place between 12:38 and 17:10. This event, associated with M6.5 flare and halo CME, is followed by major footpoint brightening, dramatic reconfiguration of the overlying field, a coronal wave and a spectacular elongated post-flare arcade.y23ARF12:3816:30M6.5l N09E5213:1814:0513:361471-1.2360halo
    2014418-2034A long-lived polar filament activates in association with an eruption (04:04-18:00) from a QS region south of an AR 12036. Then an M7.3 flare and eruption occurs that leads to oscillations and distortions in the polar filament, which subsequently loses its configuration and disappears because its cool material slides towards the W and N to a QS region just on the limb. Halo CME (1203 km/s)y24F04:0418:00M7.3; S20W3412:3113:0313:25120313.5360halo
    20147812-56FE (16:00-18:20) represents an eruption of a bright and irregular-shaped prominence, which isassociated with M6.5 flare in AR 12113 and fast (~900 km/s) partial halo CME.y25F16:0018:20M6.516:0616:2016:36773-12360halopartial halo, This flare was associated with the eruption of a bright and irregular-shaped prominence and a fast (~900 km s{-1}) partial halo CME.
    2014102-1782A filament within a AR12173 approaching the W limb activates, then M7.3 flare appears, followed by filament eruption (10:40-21:20) and reaching well outside the region and high off the limb.n2610:4021:20M7.318:4919:0119:12513-0.5159264
    20141010-2051FE (10T15:40-11T00:00) in AR 12182 associated with C3.0 ribbon flare, long post-eruption arcade and CME (310 km/s).n2715:40C3.015:4216:4716:12782-6.7>210309
    2015512-2183FE (01:40-04:10) associated with C2.6 flare in AR 12339 and CME (600 km/s). The AR loops in the foreground seem mostly unperturbed by this filament eruption.n2801:4004:10C2.602:1503:0202:48772-5.9250286
    2015618-1681FE (00:10-01:59) associated with partial halo CME (1714 km/sec) M1.2 flare in AR12365. Beautiful eruption of a helical flux rope. At higher temperatures, there was a supra arcade downflow.n29P?00:1001:59M1.200:3301:2701:25171427.7195279
    2015719-2562The filament underwent several hours of activation (00:00-06:45), and then erupted and produced a pair of long flare ribbons, which became a gradual C2.1 flare. It was associated with a post-eruptive arcade and CME (782 km/s).n30F00:0006:45:00 AM(activation)C2.109:2210:4009:48782-2.4194246
    20163161288FE (06:00-07:30) at the limd associated with C2.2 flare in AR12522 and CME (529 km/s).n31P?06:0007:30C2.206:3406:4607:00592-22.4154285
    20164181262A small prominence erupted on NW limb at about (01:40-02:50) associated with M6.7 flare in AR 12529. It is preceded by another eruption, possibly a CME (without prominence) at 23:00 on Apr 17, in the same neighborhood. It's possible that this early eruption destablized the prominence and led to its eruption.n3201:4002:50M6.700:1400:291084-24162275
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