IRIS Flare List and Initial Notes
Graham Kerr, June 2014
(Flares from lists compiled by Dr. Tian, Dr. Reeves & Dr. Li)
We (Jiong and I) are ideally looking for flares that have good IRIS observations (slit covers the flare ribbons/sources, good cadence, ideally full coverage, but at least the impulsive phase), as well as good RHESSI HXR observations in order to guide RADYN modeling of the flaring atmosphere in question. Hinode observations are also useful but not required. SDO AIA/HMI observations should be available in every case. Flares should also be on disk (ideally near-dish to disk centre but won’t rule out any flare near the limb) – limb eruptions, however, are not suitable.
***********************************
Black are flares that seem like good choices (i.e. good IRIS and good RHESSI). Unfortunately there are not very many of those yet.
Blue are flares that should be considered but aren’t ideal, either due to lack of complete RHESSI or a mid-range IRIS cadence etc.,
Orange are flares that have no RHESSI coverage but are otherwise potentially good for IRIS flare studies.
Red are flares that are ruled out for study,
-Slit not on footpoints
-Very low cadence
-No significant GOES obs.
-No spectral info
The following is an initial overview of the flares and should be checked to confirm the details (if you find any additional flares let me know!)
***********************************
2013-Oct-11
C4.7 flare (14:30 – 14:54 – 15:05 GOES times)
[-246”, -295”]
HINODE: No coverage
RHESSI: Poor coverage
IRIS: 400 x 0.35” (9.2s step cadence)
3678s raster cadence
1400 SJI and spectra
Slit covers ribbon but only once each location
http://tinyurl.com/kcd2ybn
2013-Oct-12
C5.2 flare (01:54 – 02:00 – 02:03 GOES times)
[-151” , -280”]
HINODE: No coverage
RHESSI: Full coverage, with peak 12-25KeV (maybe some 25-50KeV), though
background will be difficult
IRIS: 400 x 0.35” (31.5s step cadence).
12,852s raster cadence
Looks like the slit didn’t get too much of the ribbons though.
http://tinyurl.com/nrejur6
2013-Oct-15 ~ 05:42-05:50UT
Seems like a B class.
[-43”, -439”]
RHESSI: No coverage
IRIS: 400 x 0.35” (9s step cadence)
3600s raster cadence
1330, 1400 & 2832 SJI + lines
http://tinyurl.com/nmwxu6y
2013-Oct-28
Possibly the C class at ~09:15UT
[640”, -274”]
RHESSI: No coverage
IRIS: 64 x 1” (16.5s step cadence)
981s raster cadence
1400s SJI
Difficult to see flare – looks like it happens at ~9:15UT
http://tinyurl.com/ke6rax5
2013-Nov-02
C1.1 flare (15:22 – 15:28 – 15:35 GOES times)
[~125”, -300”]
HINODE: SOT/XRT/EIS
RHESSI: FULL coverage (6-12, 12-25Kev)
but probably with difficult background
IRIS: Cant seem to access data on IRIS LMSAL website, will check SSW
2013-Nov-14
C2.2 flare (18:44 – 18:50 – 18:59 GOES times)
[-385”, -340”]
HINODE: No coverage
RHESSI: No coverage
IRIS: 4 x 1” (4.9s step cadence)
20s raster cadence
Looks like the slit covers a portion of a ribbon
1330, 1400, 2796, 2832 SJI + spectra
http://tinyurl.com/mq4gxkq
2013-Dec-24 ~00:10UT
Not registered on GOES, and no RHESSI data
[923”, -276”]
IRIS: 64 x I” (9.6s step cadence)
615s raster cadence (4 rasters)
http://tinyurl.com/llfwcuf
2013-Dec-25 ~05:18-15:00UT
[1015”, -328”]
Several limb eruptions, and flares registered on GOES, some of which have RHESSI.
IRIS: raster cadence typically ~345s
http://tinyurl.com/lzb2vzd
http://tinyurl.com/m4zut65
http://tinyurl.com/m7y993v
http://tinyurl.com/p5lcbtb
http://tinyurl.com/oh3g3jw
http://tinyurl.com/q2gbrt3
http://tinyurl.com/nox9zpf
2013-Dec-25 ~21:53UT
[281”, ???”]
Not registered on GOES, and can’t see it in the IRIS SJI images. At any rate the IRIS rasters have a cadence of 1960s. Possibly a small B class?
http://tinyurl.com/n99ahxe
2013-Dec-29 ~23:19-12:49UT
[720”, ???”]
Looks like maybe a few flares during a Hinode campaign, though none really registered on GOES. IRIS raster cadence 577s so too high anyway.
http://tinyurl.com/p6yhcnu
http://tinyurl.com/q2gbrt3
http://tinyurl.com/qaupakp
http://tinyurl.com/qaj9x6c
http://tinyurl.com/n9yqghm
http://tinyurl.com/khnan5g
http://tinyurl.com/nlhrhfq
http://tinyurl.com/p4o6lke
2013-Dec-31 ~22:20UT
M6.4 flare (21:45 – 21:58 – 22:20 GOES times)
[497”, ~ -200”]
No slit coverage of ribbons, and only catches the end of the flare. The main phase of the flare occurs between an IRIS data gap. Loops and footpoints from the very end of an M flare visible in 1400 SJI images
HINODE: SOT/XRT
RHESSI: Only the decay
IRIS: 8 x 2” (5.3s step cadence)
42s raster cadence
1400, 2796 SJO and spectra
http://tinyurl.com/mjjktkh
2014-Jan-04 ~04:40-05:19UT
[-745”, -121”]
IRIS: 4 x 2” (9.4s step cadence)
37s raster cadence
1400, 2796 SJI and spectra
Slit on some nice loops. No GOES flare
http://tinyurl.com/p2fe93e
2014-Jan-4 06:30UT
[-745”, ???”]
C5.6 flare.
HINODE: No coverage
RHESSI: No coverage
IRIS: 4 x 2” (9.4s step cadence)
37s raster cadence
1400, 2796 SJI and spectra
1400 SJI movie of footpoints, but slit does not cover the ribbons
http://tinyurl.com/k6wjk3e
2014-Jan-05
C4.5 flare (02:24 – 02:28 – 02:30 GOES times)
[-632”, ~ -150”]
HINODE: XRT coverage
RHESSI: Full coverage (3-6, 6-12, 12-25 keV, possibly with 25-50). Tough
background though.
IRIS: Observations from 01:33–02:27, so only gets rise phase.
1400, 2796 SJI + spectra
8 x 2” (5.3s step cadence)
21s raster cadence
Hard to tell if the slits cover the ribbon as the quicklook SJI cuts out at
02:00UT, but Dr Tian’s/Dr. Reeves’ notes said that it did.
http://tinyurl.com/mjcgldb
2014-Jan-05
C6.6 flare (15:11 – 15:18 – 15:31 GOES times)
[-537”, ~ -100”]
HINODE: SOT/XRT
RHESSI: No coverage
IRIS: Observations 14:32-15:22UT so misses decay but gets peaks
8 x 2” (5.3s step cadence)
39s raster cadence
1400, 2796 SJI + spectra
Nice ribbon coverage
http://tinyurl.com/oo52q4t
2014-Jan-05
C3.4 (18:13 – 18:17 – 18:27 GOES times)
[-537”, ~ -100”]
HINODE: XRT
RHESSI: Full coverage (3-6, 6-12, 12-25 keV, possibly 25-50). Looks like a
difficult background.
IRIS: Full coverage
64 x 2” (9s step cadence)
577s raster cadence
1400, 2796 SJI
Maybe just catches ribbon with slit but doubtful. Flows at bottom of SJI
http://tinyurl.com/lmfa77x
2014-Jan-11
C6 flare (23:57 – 00:05 – 00:09 GOES times)
[759”, ~ -200”]
HINODE: SOT/XRT
RHESSI: Only rise phase, misses peak
IRIS: 16 x 0.35” (5.4 step cadence)
86s raster cadence
1400, 2796 SJI + spectra
Looks like it might catch the ribbons with the slit.
Dr Tian/Dr Reeves note: interesting rotation in CII in raster 20, very weak
FeXXI, nice eruption in 1400 SJI images
http://tinyurl.com/mt54y4h
2014-Jan-27 ~23:22-00:16UT
[978”, 194”]
IRIS: 16 x 2” (9.6s step cadence)
106s raster cadence
Small eruption on limb, no GOES class
http://tinyurl.com/po7v67e
2014-Jan-28
M3.6 flare (07:25 – 07:31 – 07:34 GOES times)
[-917”, -193”]
Hinode: No coverage
RHESSI: Just catches peak, and decay so not ideal (3-6, 6-12, 12-25 keV).
IRIS: Observations from 07:30-08:07
8 x 2” (10.4 step cadence)
71s raster cadence
1330, 1400 SJI + spectra
One edge of the raster landed on the footpoints right at the start of the
flare.
http://tinyurl.com/kyhwq5d
2014-Jan-29
C7.0 flare (14:11 – 15:31 – 16:36 GOES times)
[-864”, -207”]
HINODE: No coverage
RHESSI: Since such a long duration event there is a little bit of RHESSI at the peak
and into decay. Small amount at the onset too. Best to check carefully.
IRIS: Incomplete coverage (14:24-15:27)
8 x 2” (9.4s step cadence)
75s raster cadence
1330, 1400 SJI and spectra
Misses bulk of brightenings – possibly catching a ribbon at top of ribbon
http://tinyurl.com/mctl5st
2014-Jan-30
C1.9 flare (00:35- 00:40 – 00:48 GOES times)
[-814”, -210”]
HINODE: No coverage
RHESSI: Full coverage (3-6, 6-12, 12-25 and possibly higher energies).
Background may be difficult.
IRIS: 8 x 2” (9.4s step cadence)
75s raster cadence
1330, 1400 SJI and spectra
http://tinyurl.com/kxseoo4
2014-Feb-02
C9.7 flare (11:45 – 11:49 – 11:55 GOES times)
[599”, -93”]
HINODE: SOT/XRT
RHESSI: Rise and Peak, most of decay (3-6, 6-12, 12-25 keV possibly higher)
IRIS: Did IRIS catch this flare? Seems more like IRIS was observing a different
active region (the IRIS coordinates differ from the Hinode coordinate of this
flare). At any rate, IRIS stopped observing just before flare onset.
http://tinyurl.com/pyyj9ha
2014-Feb-02 16:12UT
[-144”, -140”]
NEED TO LOOK AT AIA FOR CONTEXT WITH THIS ONE TO CONFIRM A FLARE OR NOT
Not the M1 flare which was in a different active region [Would need to be careful with RHESSI analysis if two flaring active regions?]
HINODE: XRT
RHESSI Full coverage of two flares very close in time
IRIS: 8 x 2” (9.4s step cadence)
75s raster cadence
1330, 1400 SJI and spectra
I don’t see the flare in the SJI movie
http://tinyurl.com/orspnor
2014-Feb-02 ~17:52UT
[-40”, 266”]
Maybe a small C class, high B class event but difficult to tell
RHESSI: Small event
IRIS: 64 x 2” (32.s step cadence)
2019s raster cadence
1330, 1400, 2796, 2832 SJI and spectra
Looks like the slit misses the brightenings
http://tinyurl.com/kaf79e7
2014-Feb-02 ~19:32UT
[-170”, 263”]
Maybe a couple of high B class event but difficult to tell
RHESSI: Small events
IRIS: 64 x 2” (32.s step cadence)
2019s raster cadence
1330, 1400, 2796, 2832 SJI and spectra
Looks like the slit misses the brightenings
http://tinyurl.com/nadoztt
2014-Feb-02
M1.3 flare (21:24 – 22:04 – 22:18 GOES times)
[6”, -124”]
HINODE: SOT/XRT/EIS
RHESSI: Rise and a little bit of peak
IRIS: Observations only until 21:42UT so misses peak but gets a little of rise
64 x 2” (32.s step cadence)
2019s raster cadence
1330, 1400, 2796, 2832 SJI and spectra
Slit does cover ribbon, but only once in each location
http://tinyurl.com/mkff5x5
2014-Feb-12
C5.9 flare (23:01 – 23:16 – 23:30 GOES times)
[109”, -99”]
HINODE: XRT
RHESSI: Some coverage, peak at least and decay not much onset. Probably up to
12-25keV
IRIS: 8 x 2” (5.4s step cadence)
42s raster cadence
1330, 1400 SJI and spectra
Slit covers ribbons. Some pre- flare brightenings
http://tinyurl.com/mrgzles
2014-Feb-13
M1.8 flare (01:32 – 01:40 – 01:50 GOES times)
[109”, -99”]
HINODE: XRT
RHESSI: Full coverage up to 12-25keV
IRIS: 8 x 2” (5.4s step cadence)
42s raster cadence
1330, 1400 SJI and spectra
Slit covers ribbons. Some pre-flare brightenings
http://tinyurl.com/mrgzles
2014-Feb-13
C7.4 flare (02:25 – 02:29 – 02:32)
[109”, -99”]
HINODE: No coverage
RHESSI: No coverage
IRIS: 8 x 2” (5.4s step cadence)
42s raster cadence
1330, 1400 SJI and spectra
Slit covers ribbons. Some pre-flare brightenings
http://tinyurl.com/mrgzles
2014-Mar-15
C3.1 flare (00:20 – 00:26 – 00:30 GOES times)
[200”, -196”]
HINODE: SOT/XRT
RHESSI: Rise, peak and decay probably seen in (3-6, 6-12 and 12-25 keV).
Sinusoidal background.
IRIS: 1000 x 0” (16.5 step cadence) sit and stare
16s raster cadence
1300, 1400 SJI and spectra
Slit appears to be bang on the ribbon
http://tinyurl.com/l92qo9n
2014-Mar-29
X1.0 flare (17:35 – 17:48 – 17:54 GOES times)
[491”, -282”]
HINODE: SOT/XRT/EIS
RHESSI: FULL coverage up to 100keV
IRIS: Data from onset up to 17:54 but good for rise.
8 x 2” (9.4s step cadence)
72s raster cadence
1400, 2796, 2832 SJI and spectra
Slit right on ribbons.
http://tinyurl.com/k2glynv
2014-Mar-31
M1.4 flare (07:20 – 08:07 – 08:18 GOES times)
[977”, -205”]
HINODE: No coverage
RHESSI: Rise peak and a bit of the decay. Background may be difficult
IRIS: 1200 x 1”
31s raster cadence
A limb flare so doesn’t catch ribbon.
http://tinyurl.com/nc7ma35
2014-Apr-18
M7.3 flare (12:31 – 13:03 – 13:20 GOES times)
[551”, -230”]
HINODE: SOT/XRT/EIS
RHESSI: Coverage of peak only and some decay so background will be difficult,
but 3-6, 6-12, 12-25, 25-50 and maybe 50-100 keV observed.
IRIS: 1818 x 0” (9.4s step cadence) sit and stare
9s raster cadence
1330, 1400, and 2796 SJI and spectra
Slit is bang on one of the ribbons (the edge of one of two extended
ribbon structures)
http://tinyurl.com/kqj6hxq
2014-Apr-19
C1.6 flare (17:15 – 17:19 – 17:25 GOES times)
[695”, -221”]
HINODE: XRT
RHESSI: Decay only
IRIS: 64 x 2” (31s step cadence)
1985s raster cadence
1400 SJI and spectra
slit catches a bit of ribbon
http://tinyurl.com/k65eomn
2014-Apr-20
C2.1 flare (02:02 – 03:05 – 03:11 GOES times)
[695”, -221”]
HINODE: SOT/XRT/EIS
RHESSI: Good RHESSI coverage up 12-25 keV
IRIS: 8 x 2” (9.5s step cadence) sit and stare
76s raster cadence
1330, 1400 SJI and spectra
Slit covers a large portion of ribbon
http://tinyurl.com/pfzkfmv
2014-Apr-20
C2.4 flare (04:21 – 04:27 – 04:41 GOES times)
[]
THINK THIS IS IN A DIFFERENT ACTIVE REGION (the RHESSI data at least)
2014-04-23 ~00:15UT
[951”, 90”]
Fe XXI loop visible on limb in SJI data, spectra in first raster. No GOES event
http://tinyurl.com/nfz4ul3
2014-Apr-24 ~05:00-07:00UT
[969”, -210”]
No GOES flare at same time.
http://tinyurl.com/nppxqql
2014-May-01
B7 flare (01:32 – 01:42 – 01:56 GOES times)
[931”, -321”]
HINODE: XRT
RHESSI: No coverage
IRIS: 1480 x 0” (9.7s step cadence) sit and stare
10s raster cadence
1330, 2795 SJI and spectra
http://tinyurl.com/mmo7pyd
2014-May-06 ~06:30-07:30UT
[]
NO FLARE?
2014-May-08 ~13:00-14:00UT
[]
NO FLARE?
2014-May-09 ~02:30UT
[]
NO FLARE?
2014-May-11
C1.2 flare (13:01 – 13:11 – 13:18 GOES times)
[-176”, 135”]
HINODE: SOT/XRT/EIS
RHESSI: Full coverage but only really obvious in 3-12keV channels
IRIS: 8 x 2” (9.5s step cadence)
76s raster cadence
1330, 1400 SJI and spectra
Slit mostly between two ribbons, but catches a little bit of one of them.
http://tinyurl.com/mzabbtd
2014-May-11
C3.1 flare (17:07 – 17:14 – 17:19)
[-85”, 151”]
HINODE: SOT/XRT/EIS
RHESSI: Decay only (can we still do fitting – any point?)
IRIS: 8 x 2” (16.3s step cadence)
130s raster cadence
1330, 2796 SJI and spectra
IRIS nicely on ribbons.
http://tinyurl.com/kag66j5
2014-May-15
C5.0 flare (02:31 – 02:56 – 03:18 GOES times)
[225”, -119”]
HINODE: No coverage
RHESSI: Looks like the rise and peak, maybe up to 12-25 keV
IRIS: 2 x 1” (9.6s step cadence)
19s raster cadence
1400, 2796, 2832 SJI and spectra
Looks like the slit is over one ribbon.
http://tinyurl.com/kxbvsyn
2014-June-06
C1.1 flare (10:19 – 10:24 – 10:28 GOES times)
[-521”, -173”]
HINODE:
RHESSI: Full coverage (3-6, 6-12, 12-25 keV)
IRIS: 400 x 0.35” (5.5s step cadence)
2182s raster cadence
1330, 1400, 2796 SJI and spectra