(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:05:01 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 156434, Seg_Num: 0 GRB_RA: 5.800d {+00h 23m 12s} (J2000), 5.873d {+00h 23m 29s} (current), 5.162d {+00h 20m 39s} (1950) GRB_DEC: -5.599d {-05d 35' 55"} (J2000), -5.567d {-05d 34' 01"} (current), -5.876d {-05d 52' 32"} (1950) GRB_ERROR: 4.00 [arcmin radius, statistical only] GRB_INTEN: 0 [cnts] Image_Peak=1873 [image_cnts] TRIGGER_DUR: 168.000 [sec] TRIGGER_INDEX: 20000 E_range: 15-50 keV BKG_INTEN: 0 [cnts] BKG_TIME: 0.00 SOD {00:00:00.00} UT BKG_DUR: 0 [sec] GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54120.25 SOD {15:02:00.25} UT GRB_PHI: 98.27 [deg] GRB_THETA: 37.59 [deg] SOLN_STATUS: 0x13 RATE_SIGNIF: 0.00 [sigma] IMAGE_SIGNIF: 8.66 [sigma] MERIT_PARAMS: +1 +0 +0 +7 +1 -1 +0 +0 +98 +1 SUN_POSTN: 179.73d {+11h 58m 55s} +0.12d {+00d 07' 04"} SUN_DIST: 171.79 [deg] MOON_POSTN: 55.78d {+03h 43m 08s} +23.54d {+23d 32' 27"} MOON_DIST: 56.71 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.34,-67.45 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 3.09, -7.44 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: SWIFT-BAT GRB Coordinates. COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.) COMMENTS: A point_source was found. COMMENTS: This does not match any source in the on-board catalog. COMMENTS: This does not match any source in the ground catalog. COMMENTS: This is a GRB.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:08:14 UT NOTICE_TYPE: Swift-XRT Position TRIGGER_NUM: 156434, Seg_Num: 0 GRB_RA: 5.8057d {+00h 23m 13.3s} (J2000), 5.8787d {+00h 23m 30.8s} (current), 5.1679d {+00h 20m 40.2s} (1950) GRB_DEC: -5.6036d {-05d 36' 12.9"} (J2000), -5.5719d {-05d 34' 18.8"} (current), -5.8807d {-05d 52' 50.6"} (1950) GRB_ERROR: 5.8 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 798.86 [arb] GRB_SIGNIF: 8.48 [sigma] GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54462.25 SOD {15:07:42.25} UT [Start of CCD integration] TAM[0-3]: 327.61 237.16 261.21 243.01 AMPLIFIER: 2 WAVEFORM: 134 SUN_POSTN: 179.73d {+11h 58m 56s} +0.12d {+00d 06' 58"} SUN_DIST: 171.79 [deg] MOON_POSTN: 55.84d {+03h 43m 21s} +23.56d {+23d 33' 21"} MOON_DIST: 56.76 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.35,-67.45 [deg] galactic lon,lat of the burst ECL_COORDS: 3.09, -7.45 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: WARNING: XRT alignment calibration is on-going, and there may be COMMENTS: residual systematic offsets of several arcseconds not accounted for yet COMMENTS: by our on-board position determination algorithm. We have increased COMMENTS: the estimated error circle radius to take this into account.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:08:32 UT NOTICE_TYPE: Swift-BAT GRB Lightcurve TRIGGER_NUM: 156434, Seg_Num: 0 GRB_RA: 5.800d {+00h 23m 12s} (J2000), 5.873d {+00h 23m 29s} (current), 5.162d {+00h 20m 39s} (1950) GRB_DEC: -5.599d {-05d 35' 55"} (J2000), -5.567d {-05d 34' 01"} (current), -5.876d {-05d 52' 32"} (1950) GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54120.25 SOD {15:02:00.25} UT TRIGGER_INDEX: 20000 GRB_PHI: 98.27 [deg] GRB_THETA: 37.59 [deg] DELTA_TIME: 0.00 [sec] TRIGGER_DUR: 168.000 [sec] LC_URL: sw00156434000msb.lc SUN_POSTN: 179.73d {+11h 58m 55s} +0.12d {+00d 07' 04"} SUN_DIST: 171.79 [deg] MOON_POSTN: 55.78d {+03h 43m 08s} +23.54d {+23d 32' 27"} MOON_DIST: 56.71 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.34,-67.45 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 3.09, -7.44 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-BAT GRB Lightcurve. COMMENTS: COMMENTS: The next comments were copied from the BAT_POS Notice: COMMENTS: This is an image trigger. COMMENTS: A point_source was found. COMMENTS: This does not match any source in the on-board catalog. COMMENTS: This does not match any source in the ground catalog. COMMENTS: This is a GRB.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:09:49 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 156434, Seg_Num: 0 POINT_RA: 5.716d {+00h 22m 52s} (J2000) POINT_DEC: -5.652d {-05d 39' 06"} (J2000) POINT_ROLL: 131.944d GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54462.79 SOD {15:07:42.79} UT FILTER: 3, V BKG_MEAN: 0.000000 N_STARS: 18 X_OFFSET: 523 [pixels] Y_OFFSET: 526 [pixels] X_MAX: 1482 [pixels] Y_MAX: 1485 [pixels] DET_THRESH: 6 PHOTO_THRESH: 3 SL_URL: sw00156434000msufc.fits SUN_POSTN: 179.73d {+11h 58m 56s} +0.12d {+00d 06' 58"} SUN_DIST: 171.82 [deg] MOON_POSTN: 55.84d {+03h 43m 21s} +23.56d {+23d 33' 21"} MOON_DIST: 56.86 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.09,-67.47 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 2.99, -7.46 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:10:50 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 156434, Seg_Num: 0 POINT_RA: 5.716d {+00h 22m 52s} (J2000) POINT_DEC: -5.652d {-05d 39' 06"} (J2000) ROLL: 131.944d GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54462.79 SOD {15:07:42.79} UT FILTER: 3, V EXPOSURE_ID: 2275 X_OFFSET: 843 [pixels] Y_OFFSET: 846 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1003 Y_GRB_POS: 1006 BINNING_INDEX: 1 IM_URL: sw00156434000msuni.fits SUN_POSTN: 179.73d {+11h 58m 56s} +0.12d {+00d 06' 58"} SUN_DIST: 171.82 [deg] MOON_POSTN: 55.84d {+03h 43m 21s} +23.56d {+23d 33' 21"} MOON_DIST: 56.86 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.09,-67.47 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 2.99, -7.46 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Image. COMMENTS: The GRB Position came from the XRT Position Command. COMMENTS: The image has 2x2 binning (compression).
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:11:28 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 156434, Seg_Num: 0 POINT_RA: 5.716d {+00h 22m 52s} (J2000) POINT_DEC: -5.652d {-05d 39' 06"} (J2000) ROLL: 131.944d GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54462.79 SOD {15:07:42.79} UT FILTER: 3, V EXPOSURE_ID: 2275 X_OFFSET: 843 [pixels] Y_OFFSET: 846 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1003 Y_GRB_POS: 1006 BINNING_INDEX: 1 IM_URL: sw00156434000msuni.fits SUN_POSTN: 179.73d {+11h 58m 56s} +0.12d {+00d 06' 58"} SUN_DIST: 171.82 [deg] MOON_POSTN: 55.84d {+03h 43m 21s} +23.56d {+23d 33' 21"} MOON_DIST: 56.86 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.09,-67.47 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 2.99, -7.46 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Image. COMMENTS: If you have elected to receive attachments: COMMENTS: The uvot_catalog_image.fits file does not exist; skipping the attachment.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 22 Sep 05 15:10:24 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 156434, Seg_Num: 0 POINT_RA: 5.716d {+00h 22m 52s} (J2000) POINT_DEC: -5.652d {-05d 39' 06"} (J2000) POINT_ROLL: 131.944d GRB_DATE: 13635 TJD; 265 DOY; 05/09/22 GRB_TIME: 54462.79 SOD {15:07:42.79} UT FILTER: 3, V BKG_MEAN: 0.000000 N_STARS: 18 X_OFFSET: 523 [pixels] Y_OFFSET: 526 [pixels] X_MAX: 1482 [pixels] Y_MAX: 1485 [pixels] DET_THRESH: 6 PHOTO_THRESH: 3 SL_URL: sw00156434000msufc.fits SUN_POSTN: 179.73d {+11h 58m 56s} +0.12d {+00d 06' 58"} SUN_DIST: 171.82 [deg] MOON_POSTN: 55.84d {+03h 43m 21s} +23.56d {+23d 33' 21"} MOON_DIST: 56.86 [deg] MOON_ILLUM: 76 [%] GAL_COORDS: 104.09,-67.47 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 2.99, -7.46 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Source List. COMMENTS: If you have elected to receive attachments: COMMENTS: The uvot_field_srclist.ps file does not exist; skipping the attachment.
RA(J2000): 0:23:13.3, Dec(J2000): -5:36:12.9.We estimate the uncertainty of this position to be 8 arcseconds (radius, 90% containment). This position is 26 arcseconds from the BAT position above.
start UT end UT t_exp(s) mlim t_start-tGRB(s) Coadd? -------------------------------------------------------------------- 15:05:06.6 15:07:30.6 144 17.3 186.3 Y
------------------------------------------ StartUT Filter Limit Exposure ------------------------------------------ 15:17:55 Rc 15.5 60s 17:02:44 Ic 17.1 40x60s ------------------------------------------
Filter T_range(sec) Exp(sec) 3sig UL V 342-5997 1158 20.1 B 489-1720 258 20.2 U 474-11434 720 20.5 UVW1 580-7616 873 20.3 UVM2 446-6904 1068 20.6 UVW2 503-1826 258 20.1Where T_range is the time post-trigger over which the summed images were accumulated and Exp is the total exposure time. The magnitudes upper limits are not corrected for extinction.
RA(J2000) = 00h 23min 13.2s Dec(J2000) = -05d 36' 16.4"with an uncertainty of 7 arcseconds radius (90% containment). This position is consistent with that reported by Norris et al. (GCN 4008).
Mid time, Exposure, Filter, Limiting mag. (UT) (s) Sep.22 15:37 10x60 R 16.0The message may be cited.