Short History

QLA available since 2012/12/12
QLA website publicly available since 2013/09/01
official alerts since 2014/03/18

List of Alerts, ATels and GCN Circulars

# total	#	Date, Time	Source	additional info
1	1	10.6.2014 0:57	Mrk 501	3-4 CU, for night of 8./9.6.2014
2	2	19.6.2014 3:32	Mrk 501	~ 3 CU
3	3	21.6.2014 2:46	Mrk 501	3-4 CU, only 1 bin above limit
4	4	24.6.2014 2:17	Mrk 501	> 5 CU, triggered HESS ​Atel #6268
5	5	28.7.2014 0:28	Mrk 501	> 5 CU, missed other alerts around this date
6	6	22.8.2014 1:12	Mrk 501	~ 3 CU
7	1	4.12.2014 1:29	Mrk 421	3-4 CU, for the night of 2./3.12.2014
8	1	19.10.2015 2:13	1ES 1959+650	1-2 CU for 20-30 min
9	2	4.11.2015 22:13	1ES 1959+650	1 CU for 10-20 min
10	3	15.11.2015 21:46	1ES 1959+650	1 CU for 10-20 min
11	2	17.12.2015 6:29	Mrk 421	3 CU for 20 min, 2 CU for > 1.5h, not ideal weather
12	4	29.4.2016 11:03	1ES 1959+650	confirmation of bright emission, indication for flux increasing with time
Atel 1	1	30.4.2016 00:54	1ES 1959+650	​Atel #9010 (with Fermi-LAT, MAGIC, VERITAS)
13	5	30.4.2016 7:56	1ES 1959+650	update, similar flux to last night
GCN 1	1	13.5.2016 13:02	AMON20160218	​http://gcn.gsfc.nasa.gov/gcn3/19427.gcn3
14	6	17.5.2016 6:21	1ES 1959+650	0.5-1 CU, referred to in ​Atel #9070
15	7	6.6.2016 9:46	1ES 1959+650	> 1CU, referred to in ​Atel #9121, highest flux so far from the source
16	8	7.6.2016 5:35	1ES 1959+650	> 1CU with 4 sigma in first bin then decrease
17	9	8.6.20168:43	1ES 1959+650	update, still > 0.5 CU with 6 sigma for the whole night
18	10	9.6.2016 6:20	1ES 1959+650	> 0.5CU with > 4 sigma so far and one 20 in bin > 3 sigma
19	11	10.6.2016 6:44	1ES 1959+650	> 1CU with three bins > 3 sigma and > 6 sigma for total night so far, flux again as high as 4 nights ago (highest flux)
Atel 2	1	10.6.2016 19:00	Mrk 421	​Atel #9137 (with HAWC and Swift)
Atel 3	2	10.6.2016 22:04	1ES 1959+650	​Atel #9139
20	12	11.6.2016 6:44	1ES 1959+650	1-1.3 CU with three bins > 3 sigma and ~ 6 sigma for total night so far, highest flux so far
21	13	12.6.2016 11:37	1ES 1959+650	1-1.5 CU with 4 bins > 3 sigma and 8.5 sigma for total night, highest excessrate so far
22	14	13.6.2016 5:00	1ES 1959+650	>1.5 CU, in first bin already 45 evts/h with > 4 sigma, highest flux so far
Atel 4	3	13.6.2016 22:04	1ES 1959+650	​Atel #9148 (with VERITAS, Swift, MAGIC, Fermi)
23	15	14.6.2016 8:04	1ES 1959+650	>1.4 CU, roughly 4-5 sigma for all but the lowest point and > 11 sigma for the whole night
24	16	15.6.2016 7:51	1ES 1959+650	0.5-1 CU, highest point: almost 30 evts/h significance > 3 sigma, overall significance for whole night ~ 4.5 sigma
25	17	29.6.2016 8:28	1ES 1959+650	0.5 CU
26	18	1.7.2016 3:50	1ES 1959+650	2 CU in first 20 min bin with 4.5 sigma
Atel 5	4	1.7.2016 20:08	1ES 1959+650	​Atel #9203 (with MAGIC)
27	19	2.7.2016 3:56	1ES 1959+650	1 CU in first 20 min bin with > 3 sigma
28	20	4.7.2016 4:25	1ES 1959+650	>1 CU, third 20 min bin with > 3 sigma, already > 5 sigma in 1h
29	21	6.7.2016 7:49	1ES 1959+650	0.7-0.8 CU, 6 sigma for whole night
30	22	10.7.2016 3:51	1ES 1959+650	> 1 CU, increasing
31	23	11.7.2016 3:59	1ES 1959+650	~ 2 CU in first 20 min bin
32	24	12.7.2016 3:18	1ES 1959+650	~ 2 CU in the beginning
33	25	12.7.2016 7:41	1ES 1959+650	further increase during the night
Atel 6	5	12.7.2016 11:31	1ES 1959+650	​Atel #9239: maximum flux at TeV energies, 3.5 CU
34	26	15.7.2016 2:41	1ES 1959+650	~ 1 CU
35	27	28.7.2016 3:10	1ES 1959+650	~ 1 CU
36	28	1.8.2016 0:17	1ES 1959+650	~ 0.8 CU
GCN 2	1	1.8.2016 23:38	AMON20160731	​http://gcn.gsfc.nasa.gov/gcn3/19752.gcn3
37	1	10.8.2015 8:57	1ES 2344+51.4	~0.8 CU, clouds moving through
38	29	31.8.2016 0:36	1ES 1959+650	> 1 CU
39	30	23.9.2016 0:39	1ES 1959+650	> 1 CU
40	2	22.10.2016 1:05	1ES 2344+51.4	~ 1 CU, only 1 bin, bad weather
41	3	9.1.2017 8:08	Mrk 421	3 CU in 1 20 min bin, sent as a reply to HAWC alert

Short Summary

Source	trigger limit	# alerts	# atels	gcn-circulars
Mrk 501	3 CU	6	-	-
Mrk 421	3 CU	3	1	-
1ES 1959+650	0.5 CU, 3 sigma	30	5	-
1ES 2344+51.4	0.5 CU, 3 sigma	2	-	-
AMON	-	-	-	2
total	-	40	6	2