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GRB Time
[UT]
Trigger
Number
BAT RA
(J2000)
BAT Dec
(J2000)
BAT T90
[sec]
BAT Fluence
(15-150 keV)
[10-7 erg/cm2]
XRT RA
(J2000)
XRT Dec
(J2000)
XRT Time to First
Observation
[sec]
XRT Early Flux
(0.3-10 keV)
[10-11 erg/cm2/s]
UVOT RA
(J2000)
UVOT Dec
(J2000)
UVOT Time to
First Observation
[sec]
UVOT Magnitude Other Observatory Detections Redshift Host Galaxy Comments References
231205B 16:43:59 1200812 54.151
03:36:36.2
27.150
27:09:00.0
46.94 74 03:36:35.75 27:08:28.3 234.52 n/a n/a n/a 216 V>18.6 GECAM-B, AGILE     UVOT: no detection BAT: GCN 35269; GCN 35303
XRT: GCN 35269; GCN 35275; GCN 35291; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 35269; GCN 35308
231129C 19:10:18 Fermi 2.0
00:07:60.0
-81.5
-81:30:00.0
n/a n/a 00:44:42.45 -81:59:37.0 34800 n/a n/a n/a n/a n/a         XRT: GCN 35234; GCN 35251; Evans et al., 2009, MNRAS, 397, 1177
231129A 05:05:59 1199764 317.541
21:10:09.8
41.530
41:31:48.0
105.46 130 21:10:10.43 41:31:18.4 112.01 3050 n/a n/a 120 V>18.9 INTEGRAL, GECAM-C, VZLUSAT-2       BAT: GCN 35208; GCN 35241
XRT: GCN 35208; GCN 35218; GCN 35220; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 35208; GCN 35233
231118A 17:16:33 1197311 4.840
00:19:21.6
-48.044
-48:02:38.4
37.63 37 00:19:19.53 -48:02:23.5 413.8 10 00:19:19.26 -48:02:24.1 105 V=16.59 Fermi (GBM), Skynet (Meckering, 0.4m), MASTER, LCOGT (1m), Las Cumbres (1m), AstroSat CZTI, VLT, MeerLICHT (0.6m), VZLUSAT-2, GRBAlpha, ACTA @ 9 GHz, REM (60cm) 0.8304 (VLT: absorption)     BAT: GCN 35101; GCN 35141
XRT: GCN 35104; GCN 35106; GCN 35127; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 35135
Radio: GCN 35155 (ACTA)
Redshift: GCN 35123 (VLT)
231117A 03:03:19 1197027 332.404
22:09:37.0
13.516
13:30:57.6
0.67 23 22:09:33.57 13:31:21.1 101.84 n/a n/a n/a 106 V>18.8 AstroSat CZTI, AGILE, Konus-Wind, Glowbug, Lulin (40cm), Keck I (10m), Liverpool (2m), GIT (0.7m), GRBAlpha, ATCA @ 9 GHz, ePESSTO+, Lowell Discovery, SOAR (4m), VLA @ 10 GHz, GECAM-C, Pan-STARRS1, OHP/T120, MITSuME (50cm), CALET (GBM), Wendelstein (2m). GTC, Chandra, Mondy (AZT-33IK), MeerKAT @ 1.3 GHz 0.257 (Keck I: emission & absorption)
0.257 (ePESSTO+: emission)
    BAT: GCN 35071; GCN 35152
XRT: GCN 35071; GCN 35074; GCN 35128; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 35071; GCN 35134; GCN 35154
Radio: GCN 35097 (ATCA); GCN 35114 (VLA); GCN 35201 (MeerKAT)
Redshift: GCN 35093 (Keck I); GCN 35098 (ePESSTO+)
231111A 14:17:19 1195887 290.197
19:20:47.3
52.440
52:26:24.0
34.08 34 19:20:45.37 52:26:08.9 99.63 107 19:20:45.25 52:26:10.5 165 V>19.85 Nanshan/HMT (0.5m), MASTER, GIT (0.7m), YAHPT, GECAM-C, Mindy AZT-33IK, Nastro Verde Observatory - Sorrento, GMG, Mephisto, Leavitt Observatory (250mm), NUTTelA-TAO/BSTI, TNG, OSIRIS+/GTC, Xinglong (2.16m), MDM (2.4m), Terskol (Zeiss-2000), Abastumani (AS-32), Maidanak (AZT-22), Mondy (AZT-33IK), Assy (AZT-20) ~1.39 (TNG, tentative)
1.179 (GTC)
    BAT: GCN 34981; GCN 35033
XRT: GCN 34981; GCN 34991; GCN 34995; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34981; GCN 35069
Redshift: GCN 35007 (TNG); 35009 (GTC)
231110A 21:19:34 1195733 356.244
23:44:58.6
82.630
82:37:48.0
11.34 15 23:45:06.05 82:38:40.9 8900 n/a n/a n/a 8800 V>19.55 GECAM-B, AstroSat CZTI, Glowbug, CALET (GBM)     Due to an observing constraint, Swift did not slew until T0+50.7 minutes.
XRT: There is evidence that the source may be fading, however we cannot constrain the decay at the current time.
UVOT: no detection
BAT: GCN 34977; GCN 35015
XRT: GCN 34986; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 35011
231104A 01:47:39 1194500 23.824
01:35:17.8
83.794
83:47:38.4
46.77 130 01:35:13.63 83:47:36.5 87.90 n/a n/a n/a 91 V>19.3 Fermi (GBM & LAT), AstroSat CZTI, NuSTAR, VZLUSAT-2     UVOT: no detection BAT: GCN 34938; GCN 34964
XRT: GCN 34938; GCN 34940; GCN 34944; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34938; GCN 34941
231028A 04:09:09 1193078 214.016
14:16:03.8
20.897
20:53:49.2
37.23 72 n/a n/a n/a n/a n/a n/a n/a n/a Fermi (GBM), AstroSat CZTI, Glowbug, CALET GBM     Due to a Sun observing constraint, Swift cannot slew to the BAT position until 15:45 UT on 2023 November 22 BAT: GCN 34894; GCN 34914
231017A 08:05:03.30 GUANO 86.191
05:44:45.8
56.666
56:39:57.6
n/a n/a n/a n/a 32700 n/a n/a n/a 73640 n/a Fermi (GBM)     XRT: One uncatalogued X-ray source has been detected consistent with being within 493 arcsec of the Swift/BAT-GUANO position, it is below the RASS limit and shows no definitive signs of fading.
UVOT: no detection
BAT: GCN 34824
XRT: GCN 34829
UVOT: GCN 34844
GRB Time
[UT]
Trigger
Number
BAT RA
(J2000)
BAT Dec
(J2000)
BAT T90
[sec]
BAT Fluence
(15-150 keV)
[10-7 erg/cm2]
XRT RA
(J2000)
XRT Dec
(J2000)
XRT Time to First
Observation
[sec]
XRT Early Flux
(0.3-10 keV)
[10-11 erg/cm2/s]
UVOT RA
(J2000)
UVOT Dec
(J2000)
UVOT Time to
First Observation
[sec]
UVOT Magnitude Other Observatory Detections Redshift Host Galaxy Comments References
230911C 08:47:25 1191188 226.796
15:07:11.0
-41.356
-41:21:21.6
16.21 3.8 15:07:11.69 -41:19:48.3 118.98 n/a n/a n/a 122 n/a       UVOT: no detection BAT: GCN 34655; GCN 34675
XRT: GCN 34655; GCN 34658; GCN 34676; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34665
230911A 03:09:32 Fermi 59.8
03:59:12.0
-34.4
-34:24:00.0
n/a n/a 03:50:0.65 -29:49:33.2 215500 n/a n/a n/a n/a n/a       Fermi: GCN 34652 XRT: GCN 34702
230903A 17:22:56 1189514 9.898
00:39:35.5
-40.910
-40:54:36.0
2.54 2.2 00:39:38.55 -40:57:00.0 111.74 n/a n/a n/a 117 n/a Fermi (GBM), TESS       BAT: GCN 34610; GCN 34623
XRT: GCN 34610; GCN 34625; GCN 34626; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34610
230827B 06:08:30.73 Fermi 299.32
19:57:16.8
56.47
56:28:12.0
n/a n/a 19:58:33.47 54:27:47.5 231300 n/a n/a n/a n/a n/a       Fermi (GBM): GCN 34584 XRT: GCN 34601; Evans et al., 2009, MNRAS, 397, 1177
230826A 19:32:47 1187463 83.048
05:32:11.5
66.129
66:07:44.4
41.07 36 05:32:15.39 66:07:25.8 74.13 152 n/a n/a 114 V>17.8 Fermi (GMB), GRBAlpha, VZLUSAT-2, Glowbug     UVOT: no detection BAT: GCN 34564; GCN 34592
XRT: GCN 34564; GCN 34568; GCN 34569; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34582
230818A 23:27:34 1186032 285.888
19:03:33.1
40.888
40:53:16.8
9.82 19 19:03:33.15 40:53:48.3 141.12 n/a 19:03:33.13 40:53:49.0 144 V=18.40 MASTER-Tavrida, Fermi (GBM), GOTO, SAO RAS Zeiss-1000, NOT, KGO RC-25, Bassano Bresciano Observatory (250mm), Tautenburg (1.34m), AstroSat CZTI, SAO RAS (6m), Nickel (1m), KAIT (0.76m), Konus-Wind, GRID-03B 2.42 (NOT: absorption)
2.42 (SAO RAS: absorption)
    BAT: GCN 34479; GCN 34515
XRT: GCN 34479; GCN 34484; GCN 34489; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34479; GCN 34486
Redshift: GCN 34485 (NOT)
230816A 16:08:48 1185673 328.453
21:53:48.7
37.853
37:51:10.8
20.48 7.7 21:53:46.92 37:51:17.2 90.16 n/a n/a n/a 93 n/a Nanshan/HMT (0.5m), SAO RAS (1m), TShAO, Assy, AKO (0.36m), Tautenburg (1.34m), GROWTH-India (0.7m), Nastro Verde Observatory, SVOM/C-GFT (1.2m)       BAT: GCN 34450; GCN 34474
XRT: GCN 34450; GCN 34462; GCN 34470; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34450
230815A 10:49:55 1185505 184.760
12:19:02.4
-58.067
-58:04:01.2
17.00 52 12:18:53.34 -58:03:10.5 128.07 207 n/a n/a 155 V>18.5 Fermi (GBM), VLT, ATCA (@ 5.5, 9.0 and 44 GHz)     UVOT: no detection BAT: GCN 34434; GCN 34449
XRT: GCN 34434; GCN 34437; GCN 34444; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34434; GCN 34446
Radio: GCN 34518 (ATCA)
230812B 18:58:12 Fermi 250.1
16:40:24.0
46.2
46:12:00.0
n/a n/a 16:36:31.49 47:51:31.3 25400 n/a n/a n/a 25418 n/a       Fermi: GCN 34386 XRT: GCN 34393; GCN 34394; GCN 34400; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34399
230805B 11:23:51 1183217 207.738
13:50:57.1
31.190
31:11:24.0
93.77 19 13:50:58.37 31:11:28.8 192.27 n/a n/a n/a 196 V>19.0 SAO RAS (1m), NOT, OSN (1.5m), Fermi (GBM), AstroSat CZTI     UVOT: no detection BAT: GCN 34339; GCN 34379
XRT: GCN 34339; GCN 34345; GCN 34353; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34339; GCN 34351
GRB Time
[UT]
Trigger
Number
BAT RA
(J2000)
BAT Dec
(J2000)
BAT T90
[sec]
BAT Fluence
(15-150 keV)
[10-7 erg/cm2]
XRT RA
(J2000)
XRT Dec
(J2000)
XRT Time to First
Observation
[sec]
XRT Early Flux
(0.3-10 keV)
[10-11 erg/cm2/s]
UVOT RA
(J2000)
UVOT Dec
(J2000)
UVOT Time to
First Observation
[sec]
UVOT Magnitude Other Observatory Detections Redshift Host Galaxy Comments References
230802A 06:50:26 1182085 76.232
05:04:55.7
19.552
19:33:07.2
175.62 50 05:04:57.56 19:33:38.4 64.14 125 n/a n/a 73 V>18.4 Fermi (GBM)     UVOT: no detection BAT: GCN 34313; GCN 34333
XRT: GCN 34313; GCN 34317; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34313; GCN 34329
230728A 02:50:03 1181187 343.514
22:54:03.4
28.169
28:10:08.4
15.10 11 22:54:03.77 28:10:27.6 90.31 71.3 n/a n/a 100 V>19.4 Fermi (GBM)     UVOT: no detection BAT: GCN 34282; GCN 34299
XRT: GCN 34282; GCN 34286; GCN 34287; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34282; GCN 34288
230723B 11:42:32 1180410 250.391
16:41:33.8
-5.319
-05:19:08.4
6.64 17 16:41:30.74 -05:20:04.7 3294.73 n/a n/a n/a n/a V>19.1 Fermi (GBM)     Due to an observing constraint, Swift did not slew until T0+50.2 minutes.
UVOT: no detection
BAT: GCN 34234; GCN 34297
XRT: GCN 34236; GCN 34238; GCN 34248; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34240
230628E 22:26:10 1177054 171.851
11:27:24.2
-11.430
-11:25:48.0
4.72 3.3 11:27:23.70 -11:27:49.4 217.68 n/a n/a n/a 221 V>19.1 VLT       BAT: GCN 34110; GCN 34134
XRT: GCN 34110; GCN 34116; GCN 34117; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34110; GCN 34135
Redshift: GCN 34122 (VLT)
230622A 10:04:21 1176135 292.516
19:30:03.8
-32.972
-32:58:19.2
18.37 4.1 19:30:04.16 -32:58:13.3 375.08 n/a n/a n/a 114 n/a         BAT: GCN 34058; GCN 34082
XRT: GCN 34058; GCN 34069; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 34058
230618A 03:51:12 1175438 196.642
13:06:34.1
3.278
03:16:40.8
104.05 15 13:06:24.75 03:18:12.6 118 64.6 n/a n/a 137 n/a LCOGT (1m), KAIT (0.76m)     UVOT: no detection BAT: GCN 33989; GCN 34085
XRT: GCN 33989; GCN 33990; GCN 34007; GCN 34009; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33989; GCN 34008
230606A 00:14:37 1173731 166.777
11:07:06.5
36.504
36:30:14.4
16.26 12 11:07:14.28 36:29:03.3 2800 n/a n/a n/a 2784 V>19.2 Fermi (GBM), LCOGT (1m)     Due to communications problems from a recent typhoon in Guam, only limited real-time data was available and notices were being delayed. Swift had a delayed slew to the burst, presumably due to observing constraints.
UVOT: no detection
BAT: GCN 33921; GCN 33933
XRT: GCN 33921; GCN 33924; GCN 33928; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33926
230510A 12:06:28 1167973 318.138
21:12:33.1
34.430
34:25:48.0
178.4 100 21:12:32.80 34:26:35.1 63.36 1190 n/a n/a 72 V=18.97 Fermi (GBM),Nanshan/NEXT (0.6m), CALET (GBM), OHP (T193cm and T120cm), GRBAlpha       BAT: GCN 33752; GCN 33880
XRT: GCN 33752; GCN 33756; GCN 33757; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33752; GCN 33774
230506C 17:09:19 1167288 134.371
08:57:29.0
45.131
45:07:51.6
31.00 17 08:57:28.23 45:07:58.6 4600 n/a n/a n/a 4600 V>19.2 TSHAO Zeiss-1000, D50, T193-OHP, Fermi (GBM) 3.7   Due to an observing constraint, Swift did not slew until T0+55.3 minutes.
UVOT: no detection
BAT: GCN 33731; GCN 33743
XRT: GCN 33736; GCN 33744; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33739
Redshift: GCN 33749 (T193-OHP)
230506B 12:45:18 1167266 326.986
21:47:56.6
44.514
44:30:50.4
61.54 29 21:47:55.60 44:30:40.0 114 n/a n/a n/a 114 n/a Fermi (GBM), Chandra     UVOT: The UVOT data are not the optical afterglow of the GRB. BAT: GCN 33727; GCN 33729; GCN 33742
XRT: GCN 33727; GCN 33729; GCN 33737; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33733; GCN 33750
GRB Time
[UT]
Trigger
Number
BAT RA
(J2000)
BAT Dec
(J2000)
BAT T90
[sec]
BAT Fluence
(15-150 keV)
[10-7 erg/cm2]
XRT RA
(J2000)
XRT Dec
(J2000)
XRT Time to First
Observation
[sec]
XRT Early Flux
(0.3-10 keV)
[10-11 erg/cm2/s]
UVOT RA
(J2000)
UVOT Dec
(J2000)
UVOT Time to
First Observation
[sec]
UVOT Magnitude Other Observatory Detections Redshift Host Galaxy Comments References
230427A 10:31:52 1165948 153.339
10:13:21.4
48.231
48:13:51.6
4.00 0.95 10:13:15.29 48:12:13.5 93.95 n/a 10:13:15.05 48:12:14.4 98 V>19.3 BOOTES-5/JGT (0.6m), OSIRIS+/GTC (10.4m)       BAT: GCN 33687; GCN 33722
XRT: GCN 33687; GCN 33688; GCN 33703; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33687; GCN 33710
230423A 19:07:55 1165354 122.618
08:10:28.3
-21.901
-21:54:03.6
23.60 4.6 08:10:19.85 -21:55:31.2 101.09 n/a n/a n/a 731 n/a       UVOT: no detection BAT: GCN 33677; GCN 33694
XRT: GCN 33677; GCN 33679; GCN 33681; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33677; GCN 33683
230420A 10:19:01 1164980 161.040
10:44:09.6
32.111
32:06:39.6
111.75 27 10:44:11.56 32:06:27.6 91.82 305 n/a n/a 99 V>19.5 BOOTES-5/JGT (0.6m), NOT (2.56m), MITSuME (50cm), VLT, Lowell Discovery Telescope (4.3m)     UVTO: no detection BAT: GCN 33658; GCN 33670
XRT: GCN 33658; GCN 33661; GCN 33667; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33658; GCN 33673
230414B 16:14:21 1164180 181.052
12:04:12.5
53.179
53:10:44.4
25.98 4.7 12:04:22.72 53:09:15.7 128.57 n/a n/a n/a 133 V>18.53 Mondy/AZT-33IK, Nanshan/HMT (0.5m), GROWTH-India (0.7m), DFOT (1.3m), SAO RAS (1m), NOT, Dabancheng/GHOST (0.5m), AbAO AS-32, OSIRIS/GTC, Bassano Bresciano Observatory (IAU 565), Montarrenti Observatory (0.53m), DOT (3.6m), VIRT (0.5m), Nastro Verde Observatory, Nickel (1m), KAIT (0.76m) 3.568 (OSIRIS/GTC: absorption)     BAT: GCN 33612; GCN 33645
XRT: GCN 33612; GCN 33613; GCN 33621; GCN 33626; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33612; GCN 33642; GCN 33644
Redshift: GCN 33629 (OSIRIS/GTC)
230409B 04:56:57 1163401 329.516
21:58:03.8
52.832
52:49:55.2
9.79 9.9 21:58:03.55 52:49:55.7 101.24 n/a n/a n/a 386 V>18.1 DOT (2.6m)       BAT: GCN 33592; GCN 33598
XRT: GCN 33592; GCN 33594; GCN 33599; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33592; GCN 33595
230405B 19:58:03 1163119 271.467
18:05:52.1
-47.070
-47:04:12.0
n/a n/a 18:05:45.74 -47:04:12.1 65.74 91.9 n/a n/a 75 V>19.1 Fermi (GBM), AstroSat CZTI, AGILE, Konus-Wind, VZLUSAT-2     UVOT: no detection BAT: GCN 33571
XRT: GCN 33571; GCN 33572; GCN 33574; GCN 33584; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33571; GCN 33576
230328B 14:54:48 1162001 291.037
19:24:08.9
80.013
80:00:46.8
19.23 43 19:24:01.65 80:00:34.4 110.33 n/a 19:24:01.88 80:00:34.6 114 V>17.6 Fermi (GBM), AZT-33IK (Mondy), AS-32 (Abastumani), AstroSat CZTI, OASDG (0.5m), GROWTH-India, OHP/T120, Liverpool (2m), NUTTelA-TAO (BSTI), GRBAlpha, Konus-Wind, DOT (3.6m), CAHA/CAFOS (2.2m), GRANDMA/Kilonova-Cacther, ISON-Multa/Santel-400 (0.4m) Minimal possible redshift value of z = 0.09     BAT: GCN 33527; GCN 33541
XRT: GCN 33527; GCN 33529; GCN 33533; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33527; GCN 33556
Redshift: GCN 33609
230325A 03:15:35 1161390 296.854
19:47:25.0
-46.067
-46:04:01.2
38.05 13 19:47:23.94 -46:04:33.9 94.05 206 n/a n/a 102 V>18.9 VLT (X-shooter) 1.664 (VLT: emission)   UVOT: no detection BAT: GCN 33516; GCN 33523
XRT: GCN 33516; GCN 33517; GCN 33518; GCN 33520; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33516; GCN 33522
Redshift: GCN 33521 (VLT)
230322B 21:10:37 1161127 16.550
01:06:12.0
-47.709
-47:42:32.4
11.61 3.7 01:06:12.83 -47:42:02.8 113.84 n/a 01:06:12.84 -47:42:02.8 119 V>18.3         BAT: GCN 33505; GCN 33519
XRT: GCN 33505; GCN 33507; GCN 33508; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33505; GCN 33512
230307A 15:44:06 Fermi 54.1
03:36:24.0
-76.6
-76:36:00.0
n/a n/a 04:03:26.24 -75:22:43.8 76400 n/a n/a n/a 99500 n/a       Fermi: GCN 33405 BAT: GCN 33431
XRT: GCN 33419; GCN 33429; GCN 33465; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33471
GRB Time
[UT]
Trigger
Number
BAT RA
(J2000)
BAT Dec
(J2000)
BAT T90
[sec]
BAT Fluence
(15-150 keV)
[10-7 erg/cm2]
XRT RA
(J2000)
XRT Dec
(J2000)
XRT Time to First
Observation
[sec]
XRT Early Flux
(0.3-10 keV)
[10-11 erg/cm2/s]
UVOT RA
(J2000)
UVOT Dec
(J2000)
UVOT Time to
First Observation
[sec]
UVOT Magnitude Other Observatory Detections Redshift Host Galaxy Comments References
230228A 05:50:50 1156572 18.397
01:13:35.3
44.495
44:29:42.0
2.18 3.6 01:13:30.74 44:28:58.5 118.99 n/a n/a n/a 122 V>18.8 Fermi (GBM)     UVOT: no detection BAT: GCN 33378; GCN 33393
XRT: GCN 33378; GCN 33379; GCN 33382; GCN 33384; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33378; GCN 33392
230217A 21:53:10 1154967 280.759
18:43:02.2
-28.840
-28:50:24.0
1.30 23 18:43:04.80 -28:50:14.6 45800 n/a n/a n/a 45800 n/a Fermi (GBM), AGILE (MCAL), Konus-Wind, AstroSat (CZTI), ATCA @ 5.5 & 9 GHz, VLT, VLA @ 6 GHz     Due to a Moon observing constraint, Swift did slew to the BAT position until 2023 February 18.
UVOT: no detection
BAT: GCN 33339; GCN 33363
XRT: GCN 33348; GCN 33365; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33370
Radio: GCN 33433 (ATCA); GCN 33358 (VLA)
230216A 14:48:34 1154815 113.966
07:35:51.8
-7.993
-07:59:34.8
91.20 13 07:35:50.17 -08:00:41.6 100.33 n/a n/a n/a 106 V>15.9 Money (AZT-33IK)     UVOT: no detection BAT: GCN 33328; GCN 33336
XRT: GCN 33328; GCN 33331; GCN 33335; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33328; GCN 33369; GCN 33709
230205A 10:29:51 1152764 202.057
13:28:13.7
46.686
46:41:09.6
2.30 1.6 13:28:17.01 46:43:31.1 108.8 10 n/a n/a 100 V>19.5 VLA @ 6GHz     UVOT: no detection BAT: GCN 33271; GCN 33280
XRT: GCN 33271; GCN 33275; GCN 33277; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33271; GCN 33289
Radio: GCN 33309 (VLA); GCN 33372 (VLA)
230204B 21:47:51 MAXI 197.581
13:10:19.4
-21.752
-21:45:07.2
n/a n/a 13:10:34.58 -21:42:58.9 80500 n/a n/a n/a 80000 V>19.1       XRT: The source is below the RASS limit but does not show definitive signs of fading. This is most likely the afterglow, given also the reported redshift of z=2.14 (Saccardi et al. GCN Circ. 33281) but further observations are required to assess for fading.
UVOT: no detection
XRT: GCN 33285; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33292
Other: GCN 33265 (MAXI)
230204A 02:56:57 1152509 238.166
15:52:39.8
-50.848
-50:50:52.8
182.05 37 15:52:47.91 -50:55:00.2 146.85 277 n/a n/a 156 V>15.9 LCOGT (1m, candidate)     Note that this source is near the Galactic plane (lat=2.38 deg) and was detected as a 64 s image trigger, which raises the possibility that this is a Galactic transient. We would name this source Swift J1552.8-5055 if it is not a GRB.
UVOT: no detection
BAT: GCN 33260; GCN 33279
XRT: GCN 33260; GCN 33261; GCN 33264; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33260; GCN 33266
230123A 10:19:44 1150429 40.905
02:43:37.2
-65.661
-65:39:39.6
5.37 2.7 02:43:25.84 -65:41:10.2 88.8 n/a n/a n/a 93 V>19.4       UVOT: no detection BAT: GCN 33206; GCN 33214
XRT: GCN 33206; GCN 33209; GCN 33210; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33206; GCN 33211
230116D 21:04:43 1149293 98.584
06:34:20.2
49.831
49:49:51.6
41.00 8.12 06:34:28.28 49:52:22.3 130.9 n/a n/a n/a 133 n/a Nanshan/NEXT (0,6m), Sintez-Newton/CrAO, SAO RAS (1m), GROWTH-India Telescope, Sintez-Newton/CrAO, KGO RC-25 3.81 (SAO RAS: absorption)     BAT: GCN 33176; GCN 33194
XRT: GCN 33176; GCN 33180; GCN 33185; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33176
Redshift: GCN 33187 (SAO RAS)
230116C 15:33:21 1149250 223.467
14:53:52.1
-16.883
-16:52:58.8
316.77 61 n/a n/a n/a n/a n/a n/a n/a n/a       Due to a Moon observing constraint, Swift cannot slew to the BAT position until 09:10 UT on 2023 January 18. BAT: GCN 33173; GCN 33193
221231A 21:46:05 BAT/GUNAO 336.260
22:25:02.4
25.138
25:08:16.8
n/a n/a 22:25:01.44 25:07:47.2 32400 n/a n/a n/a n/a n/a Fermi (GBM)       BAT: GCN 33132
XRT: GCN 33135; GCN 33139; Evans et al., 2009, MNRAS, 397, 1177

* The data were put in a different sequence not labeled with the trigger number but the trigger number is correct.

NOTES:

  1. Table does not contain about ~10 weak detections which we did not distribute because we were uncertain about their validity.
  2. All numbers are preliminary and may be revised as we do reprocessing (s/w improvements, thinking/experience improvements).

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