(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 00:03:33 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 324744, Seg_Num: 0 GRB_RA: 18.004d {+01h 12m 01s} (J2000), 18.055d {+01h 12m 13s} (current), 17.710d {+01h 10m 50s} (1950) GRB_DEC: -76.014d {-76d 00' 51"} (J2000), -75.968d {-75d 58' 05"} (current), -76.279d {-76d 16' 45"} (1950) GRB_ERROR: 3.00 [arcmin radius, statistical only] GRB_INTEN: 20073 [cnts] Image_Peak=379 [image_cnts] TRIGGER_DUR: 4.096 [sec] TRIGGER_INDEX: 298 E_range: 25-100 keV BKG_INTEN: 187162 [cnts] BKG_TIME: 116.90 SOD {00:01:56.90} UT BKG_DUR: 40 [sec] GRB_DATE: 14724 TJD; 259 DOY; 08/09/15 GRB_TIME: 169.95 SOD {00:02:49.95} UT GRB_PHI: -170.27 [deg] GRB_THETA: 27.40 [deg] SOLN_STATUS: 0x3 RATE_SIGNIF: 8.18 [sigma] IMAGE_SIGNIF: 7.13 [sigma] MERIT_PARAMS: +1 +0 +0 +3 +2 +0 +0 +0 +26 +1 SUN_POSTN: 173.14d {+11h 32m 33s} +2.97d {+02d 57' 55"} SUN_DIST: 105.65 [deg] Sun_angle= 10.3 [hr] (West of Sun) MOON_POSTN: 347.72d {+23h 10m 54s} -2.60d {-02d 35' 47"} MOON_DIST: 75.34 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 301.29,-41.05 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 305.91,-66.93 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: SWIFT-BAT GRB Coordinates. COMMENTS: This is a rate 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. COMMENTS: This trigger occurred at longitude,latitude = 289.26,-2.42 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 00:06:30 UT NOTICE_TYPE: Swift-BAT GRB Lightcurve TRIGGER_NUM: 324744, Seg_Num: 0 GRB_RA: 18.004d {+01h 12m 01s} (J2000), 18.055d {+01h 12m 13s} (current), 17.710d {+01h 10m 50s} (1950) GRB_DEC: -76.014d {-76d 00' 51"} (J2000), -75.968d {-75d 58' 05"} (current), -76.279d {-76d 16' 45"} (1950) GRB_DATE: 14724 TJD; 259 DOY; 08/09/15 GRB_TIME: 169.95 SOD {00:02:49.95} UT TRIGGER_INDEX: 298 GRB_PHI: -170.27 [deg] GRB_THETA: 27.40 [deg] DELTA_TIME: -25.00 [sec] TRIGGER_DUR: 4.096 [sec] SOLN_STATUS: 0x3 RATE_SIGNIF: 8.18 [sigma] IMAGE_SIGNIF: 7.13 [sigma] LC_URL: sw00324744000msb.lc SUN_POSTN: 173.14d {+11h 32m 33s} +2.96d {+02d 57' 52"} SUN_DIST: 105.65 [deg] Sun_angle= 10.3 [hr] (West of Sun) MOON_POSTN: 347.75d {+23h 11m 00s} -2.58d {-02d 35' 01"} MOON_DIST: 75.35 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 301.29,-41.05 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 305.91,-66.93 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: SWIFT-BAT GRB Lightcurve. COMMENTS: COMMENTS: The next comments were copied from the BAT_POS Notice: COMMENTS: This is a rate 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. COMMENTS: This trigger occurred at longitude,latitude = 289.26,-2.42 [deg].
RA(J2000) = 01h 12m 01s Dec(J2000) = -76d 00' 51"with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single-peaked structure with a duration of about 20 sec. The peak count rate was ~700 counts/sec (15-350 keV), at ~2 sec after the trigger.
start UT end UT t_exp(s) mlim t_start-tGRB(s) Coadd? -------------------------------------------------------------------- 00:03:42.2 00:03:47.2 5 14.2 52.2 N
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 01:07:23 UT NOTICE_TYPE: Swift-XRT Nack-Position TRIGGER_NUM: 324744, Seg_Num: 0 POINT_RA: 18.041d {+01h 12m 10s} (J2000) POINT_DEC: -76.029d {-76d 01' 44"} (J2000) IMG_START_DATE: 14724 TJD; 259 DOY; 08/09/15 IMG_START_TIME: 4037.02 SOD {01:07:17.02} UT, 3867.1 [sec] since BAT Trigger Time COUNTS: 1 Min_needed= 20 STD_DEV: 0.00 Max_StdDev_for_Good=28.44 [arcsec] PH2_ITER: 0 Max_iter_allowed= 4 ERROR_CODE: 1 COMMENTS: SWIFT-XRT Nack Position. COMMENTS: No source found in the image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 01:10:52 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 324744, Seg_Num: 0 POINT_RA: 18.041d {+01h 12m 10s} (J2000) POINT_DEC: -76.029d {-76d 01' 45"} (J2000) POINT_ROLL: 154.151d IMG_START_DATE: 14724 TJD; 259 DOY; 08/09/15 IMG_START_TIME: 4041.38 SOD {01:07:21.38} UT, 3871.4 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 4.777 N_STARS: 50 X_OFFSET: 354 [pixels] Y_OFFSET: 622 [pixels] X_MAX: 1313 [pixels] Y_MAX: 1581 [pixels] DET_THRESH: 18 PHOTO_THRESH: 11 SL_URL: sw00324744000msufc3871.fits SUN_POSTN: 173.18d {+11h 32m 43s} +2.95d {+02d 56' 50"} SUN_DIST: 105.62 [deg] Sun_angle= 10.3 [hr] (West of Sun) MOON_POSTN: 348.29d {+23h 13m 09s} -2.30d {-02d 18' 16"} MOON_DIST: 75.58 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 301.28,-41.03 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 305.87,-66.94 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 01:11:22 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 324744, Seg_Num: 0 POINT_RA: 18.041d {+01h 12m 10s} (J2000) POINT_DEC: -76.029d {-76d 01' 45"} (J2000) POINT_ROLL: 154.151d IMG_START_DATE: 14724 TJD; 259 DOY; 08/09/15 IMG_START_TIME: 4041.38 SOD {01:07:21.38} UT, 3871.4 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 4.777 N_STARS: 50 X_OFFSET: 354 [pixels] Y_OFFSET: 622 [pixels] X_MAX: 1313 [pixels] Y_MAX: 1581 [pixels] DET_THRESH: 18 PHOTO_THRESH: 11 SL_URL: sw00324744000msufc3871.fits SUN_POSTN: 173.18d {+11h 32m 43s} +2.95d {+02d 56' 50"} SUN_DIST: 105.62 [deg] Sun_angle= 10.3 [hr] (West of Sun) MOON_POSTN: 348.29d {+23h 13m 10s} -2.30d {-02d 18' 08"} MOON_DIST: 75.58 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 301.28,-41.03 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 305.87,-66.94 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Source List. COMMENTS: All 4 attachments are included.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 01:12:46 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 324744, Seg_Num: 0 POINT_RA: 18.041d {+01h 12m 10s} (J2000) POINT_DEC: -76.029d {-76d 01' 45"} (J2000) ROLL: 154.151d IMG_START_DATE: 14724 TJD; 259 DOY; 08/09/15 IMG_START_TIME: 4041.38 SOD {01:07:21.38} UT, 3871.4 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 243133644 X_OFFSET: 673 [pixels] Y_OFFSET: 941 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 833 Y_GRB_POS: 1101 BINNING_INDEX: 1 IM_URL: sw00324744000msuni3871.fits SUN_POSTN: 173.18d {+11h 32m 43s} +2.95d {+02d 56' 48"} SUN_DIST: 105.62 [deg] Sun_angle= 10.3 [hr] (West of Sun) MOON_POSTN: 348.30d {+23h 13m 13s} -2.30d {-02d 17' 47"} MOON_DIST: 75.59 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 301.28,-41.03 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 305.87,-66.94 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Image. COMMENTS: The GRB Position came from the Window Position in the Mode Command. COMMENTS: The image has 2x2 binning (compression).
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Mon 15 Sep 08 01:13:12 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 324744, Seg_Num: 0 POINT_RA: 18.041d {+01h 12m 10s} (J2000) POINT_DEC: -76.029d {-76d 01' 45"} (J2000) ROLL: 154.151d IMG_START_DATE: 14724 TJD; 259 DOY; 08/09/15 IMG_START_TIME: 4041.38 SOD {01:07:21.38} UT, 3871.4 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 243133644 X_OFFSET: 673 [pixels] Y_OFFSET: 941 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 833 Y_GRB_POS: 1101 BINNING_INDEX: 1 IM_URL: sw00324744000msuni3871.fits SUN_POSTN: 173.18d {+11h 32m 43s} +2.95d {+02d 56' 48"} SUN_DIST: 105.62 [deg] Sun_angle= 10.3 [hr] (West of Sun) MOON_POSTN: 348.31d {+23h 13m 13s} -2.29d {-02d 17' 40"} MOON_DIST: 75.59 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 301.28,-41.03 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 305.87,-66.94 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Image. COMMENTS: The GRB Position came from the Window Position in the Mode Command. COMMENTS: The image has 2x2 binning (compression). COMMENTS: If you have elected to receive attachments: COMMENTS: The uvot_sources_image.fits.gz file does not exist; skipping the attachment.
RA(J2000) = 01h 11m 38.5s Dec(J2000) = -76d 02' 29.9"with an uncertainty of 2.4 arcmin, (radius, sys+stat, 90% containment). The partial coding was 89%.
RA (J2000): 01h 11m 47.35s Dec (J2000): -76d 01' 13.4"with an uncertainy of 6.5 arcsec (radius, 90% containment). This position is 54 arcsec from the BAT position, within the BAT error circle.
Filter T_start T_stop Exp Mag (3-sigma UL) (s) (s) (s) ========================================================= white (FC) 3872 3972 98.2 > 19.9 white 5004 5204 196.6 > 20.5 v 3979 4179 196.6 > 18.8 v 9633 10539 885.1 > 19.7 b 4799 4999 196.6 > 19.6 u 4594 4794 196.6 > 19.1 uvw1 4389 4589 196.6 > 19.3 uvm2 4184 11087 731.3 > 20.4 uvw2 5210 5329 117.3 > 19.6The values quoted above are not corrected for the expected Galactic extinction corresponding to a reddening of E(B-V) = 0.049 mag in the direction of the burst (Schlegel et al. 1998).
g' > 23.8 r' > 23.7 i' > 23.5 z' > 23.1 J > 20.5 H > 19.3 K > 18.3