(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 22:50:38 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.705d {+20h 58m 49s} (J2000), 314.985d {+20h 59m 56s} (current), 313.795d {+20h 55m 11s} (1950) GRB_DEC: -53.394d {-53d 23' 36"} (J2000), -53.333d {-53d 19' 57"} (current), -53.588d {-53d 35' 15"} (1950) GRB_ERROR: 3.00 [arcmin radius, statistical only] GRB_INTEN: 57952 [cnts] Image_Peak=906 [image_cnts] TRIGGER_DUR: 16.384 [sec] TRIGGER_INDEX: 372 E_range: 25-100 keV BKG_INTEN: 208392 [cnts] BKG_TIME: 82058.27 SOD {22:47:38.27} UT BKG_DUR: 64 [sec] GRB_DATE: 17189 TJD; 167 DOY; 15/06/16 GRB_TIME: 82159.26 SOD {22:49:19.26} UT GRB_PHI: -123.23 [deg] GRB_THETA: 40.16 [deg] SOLN_STATUS: 0x3 RATE_SIGNIF: 16.91 [sigma] IMAGE_SIGNIF: 12.26 [sigma] MERIT_PARAMS: +1 +0 +0 +4 +2 +2 +0 +0 +67 +0 SUN_POSTN: 85.07d {+05h 40m 17s} +23.36d {+23d 21' 34"} SUN_DIST: 132.15 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 89.92d {+05h 59m 42s} +18.46d {+18d 27' 52"} MOON_DIST: 130.85 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 300.64,-34.61 [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 = 346.87,11.75 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 22:53:22 UT NOTICE_TYPE: Swift-BAT GRB Lightcurve TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.705d {+20h 58m 49s} (J2000), 314.985d {+20h 59m 56s} (current), 313.795d {+20h 55m 11s} (1950) GRB_DEC: -53.394d {-53d 23' 36"} (J2000), -53.333d {-53d 19' 57"} (current), -53.588d {-53d 35' 15"} (1950) GRB_DATE: 17189 TJD; 167 DOY; 15/06/16 GRB_TIME: 82159.26 SOD {22:49:19.26} UT TRIGGER_INDEX: 372 GRB_PHI: -123.23 [deg] GRB_THETA: 40.16 [deg] DELTA_TIME: -18.00 [sec] TRIGGER_DUR: 16.384 [sec] SOLN_STATUS: 0x3 RATE_SIGNIF: 16.91 [sigma] IMAGE_SIGNIF: 12.26 [sigma] LC_URL: sw00644259000msb.lc SUN_POSTN: 85.07d {+05h 40m 17s} +23.36d {+23d 21' 34"} SUN_DIST: 132.15 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 89.95d {+05h 59m 48s} +18.46d {+18d 27' 52"} MOON_DIST: 130.87 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 300.64,-34.61 [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 = 346.87,11.75 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:00:11 UT NOTICE_TYPE: Swift-XRT Position TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.7156d {+20h 58m 51.74s} (J2000), 314.9957d {+20h 59m 58.95s} (current), 313.8057d {+20h 55m 13.37s} (1950) GRB_DEC: -53.3923d {-53d 23' 32.2"} (J2000), -53.3316d {-53d 19' 53.7"} (current), -53.5866d {-53d 35' 11.7"} (1950) GRB_ERROR: 4.8 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 4.54e-09 [erg/cm2/sec] GRB_SIGNIF: 11.95 [sigma] IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82730.16 SOD {22:58:50.16} UT, 570.9 [sec] since BAT Trigger Time TAM[0-3]: 327.63 237.18 261.61 243.57 AMPLIFIER: 2 WAVEFORM: 134 SUN_POSTN: 85.08d {+05h 40m 18s} +23.36d {+23d 21' 34"} SUN_DIST: 132.15 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.02d {+06h 00m 04s} +18.46d {+18d 27' 50"} MOON_DIST: 130.90 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst ECL_COORDS: 300.65,-34.61 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: The XRT position is 0.40 arcmin from the BAT position.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:00:20 UT NOTICE_TYPE: Swift-XRT Image TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.7156d {+20h 58m 51.7s} (J2000), 314.9957d {+20h 59m 58.9s} (current), 313.8057d {+20h 55m 13.3s} (1950) GRB_DEC: -53.3923d {-53d 23' 32.2"} (J2000), -53.3316d {-53d 19' 53.7"} (current), -53.5866d {-53d 35' 11.7"} (1950) GRB_ERROR: 4.7 [arcsec, radius, statistical plus systematic] GRB_INTEN: 143 [cnts] IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82730.16 SOD {22:58:50.16} UT, 570.9 [sec] since BAT Trigger Time CENTROID_X: 283.80, raw= 284 [pixels] CENTROID_Y: 287.85, raw= 288 [pixels] ROLL: 108.97 [deg] GAIN: 1 MODE: 3, Long Image mode WAVEFORM: 134 EXPO_TIME: 2.50 [sec] GRB_POS_XRT_Y: -23.43 GRB_POS_XRT_Z: -50.67 IMAGE_URL: sw00644259000msxps_rw.img SUN_POSTN: 85.08d {+05h 40m 19s} +23.36d {+23d 21' 34"} SUN_DIST: 132.15 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.02d {+06h 00m 05s} +18.46d {+18d 27' 50"} MOON_DIST: 130.90 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst ECL_COORDS: 300.65,-34.61 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:00:32 UT NOTICE_TYPE: Swift-XRT Processed Image TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.7156d {+20h 58m 51.7s} (J2000), 314.9957d {+20h 59m 58.9s} (current), 313.8057d {+20h 55m 13.3s} (1950) GRB_DEC: -53.3923d {-53d 23' 32.2"} (J2000), -53.3316d {-53d 19' 53.7"} (current), -53.5866d {-53d 35' 11.7"} (1950) GRB_ERROR: 4.7 [arcsec, radius, statistical plus systematic] GRB_INTEN: 143 [cnts] IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82730.16 SOD {22:58:50.16} UT, 570.9 [sec] since BAT Trigger Time CENTROID_X: 283.80, raw= 284 [pixels] CENTROID_Y: 287.85, raw= 288 [pixels] ROLL: 108.97 [deg] GAIN: 1 MODE: 3, Long Image mode WAVEFORM: 134 EXPO_TIME: 2.50 [sec] GRB_POS_XRT_Y: -23.43 GRB_POS_XRT_Z: -50.67 IMAGE_URL: sw00644259000msxps_rw.img SUN_POSTN: 85.08d {+05h 40m 19s} +23.36d {+23d 21' 34"} SUN_DIST: 132.15 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.02d {+06h 00m 05s} +18.46d {+18d 27' 50"} MOON_DIST: 130.90 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst ECL_COORDS: 300.65,-34.61 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Processed Image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:01:57 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.698d {+20h 58m 48s} (J2000) POINT_DEC: -53.382d {-53d 22' 53"} (J2000) POINT_ROLL: 108.971d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82738.69 SOD {22:58:58.69} UT, 579.4 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 1.661 N_STARS: 53 X_OFFSET: 576 [pixels] Y_OFFSET: 576 [pixels] X_MAX: 1535 [pixels] Y_MAX: 1535 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00644259000msufc0579.fits SUN_POSTN: 85.08d {+05h 40m 19s} +23.36d {+23d 21' 34"} SUN_DIST: 132.16 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.03d {+06h 00m 08s} +18.46d {+18d 27' 50"} MOON_DIST: 130.92 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:02:32 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.698d {+20h 58m 48s} (J2000) POINT_DEC: -53.382d {-53d 22' 53"} (J2000) POINT_ROLL: 108.971d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82738.69 SOD {22:58:58.69} UT, 579.4 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 1.661 N_STARS: 53 X_OFFSET: 576 [pixels] Y_OFFSET: 576 [pixels] X_MAX: 1535 [pixels] Y_MAX: 1535 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00644259000msufc0579.fits SUN_POSTN: 85.08d {+05h 40m 19s} +23.36d {+23d 21' 35"} SUN_DIST: 132.16 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.04d {+06h 00m 10s} +18.46d {+18d 27' 49"} MOON_DIST: 130.92 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [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: Tue 16 Jun 15 23:03:17 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.698d {+20h 58m 48s} (J2000) POINT_DEC: -53.382d {-53d 22' 53"} (J2000) ROLL: 108.971d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82738.69 SOD {22:58:58.69} UT, 579.4 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 456188352 X_OFFSET: 918 [pixels] Y_OFFSET: 860 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1078 Y_GRB_POS: 1020 BINNING_INDEX: 1 IM_URL: sw00644259000msuni0593.fits SUN_POSTN: 85.08d {+05h 40m 19s} +23.36d {+23d 21' 35"} SUN_DIST: 132.16 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.05d {+06h 00m 11s} +18.46d {+18d 27' 49"} MOON_DIST: 130.93 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [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: Tue 16 Jun 15 23:03:36 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.698d {+20h 58m 48s} (J2000) POINT_DEC: -53.382d {-53d 22' 53"} (J2000) ROLL: 108.971d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 82738.69 SOD {22:58:58.69} UT, 579.4 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 456188352 X_OFFSET: 918 [pixels] Y_OFFSET: 860 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1078 Y_GRB_POS: 1020 BINNING_INDEX: 1 IM_URL: sw00644259000msuni0593.fits SUN_POSTN: 85.08d {+05h 40m 19s} +23.36d {+23d 21' 35"} SUN_DIST: 132.16 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.05d {+06h 00m 12s} +18.46d {+18d 27' 49"} MOON_DIST: 130.93 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Image. COMMENTS: The GRB Position came from the XRT Position Command. COMMENTS: The image has 2x2 binning (compression). COMMENTS: All 4 attachments are included.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:06:52 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.694d {+20h 58m 47s} (J2000) POINT_DEC: -53.381d {-53d 22' 52"} (J2000) POINT_ROLL: 108.977d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 83019.49 SOD {23:03:39.49} UT, 860.2 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 1.743 N_STARS: 61 X_OFFSET: 598 [pixels] Y_OFFSET: 540 [pixels] X_MAX: 1557 [pixels] Y_MAX: 1499 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00644259000msufc0860.fits SUN_POSTN: 85.08d {+05h 40m 20s} +23.36d {+23d 21' 35"} SUN_DIST: 132.17 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.08d {+06h 00m 20s} +18.46d {+18d 27' 48"} MOON_DIST: 130.95 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:07:02 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.694d {+20h 58m 47s} (J2000) POINT_DEC: -53.381d {-53d 22' 52"} (J2000) POINT_ROLL: 108.977d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 83019.49 SOD {23:03:39.49} UT, 860.2 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 1.743 N_STARS: 61 X_OFFSET: 598 [pixels] Y_OFFSET: 540 [pixels] X_MAX: 1557 [pixels] Y_MAX: 1499 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00644259000msufc0860.fits SUN_POSTN: 85.08d {+05h 40m 20s} +23.36d {+23d 21' 35"} SUN_DIST: 132.17 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.08d {+06h 00m 20s} +18.46d {+18d 27' 48"} MOON_DIST: 130.95 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [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: Tue 16 Jun 15 23:08:05 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.694d {+20h 58m 47s} (J2000) POINT_DEC: -53.381d {-53d 22' 52"} (J2000) ROLL: 108.977d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 83019.49 SOD {23:03:39.49} UT, 860.2 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 456188633 X_OFFSET: 918 [pixels] Y_OFFSET: 860 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1078 Y_GRB_POS: 1020 BINNING_INDEX: 1 IM_URL: sw00644259000msuni0874.fits SUN_POSTN: 85.08d {+05h 40m 20s} +23.36d {+23d 21' 35"} SUN_DIST: 132.17 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.09d {+06h 00m 23s} +18.46d {+18d 27' 48"} MOON_DIST: 130.96 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [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: Tue 16 Jun 15 23:08:26 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 644259, Seg_Num: 0 POINT_RA: 314.694d {+20h 58m 47s} (J2000) POINT_DEC: -53.381d {-53d 22' 52"} (J2000) ROLL: 108.977d IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 83019.49 SOD {23:03:39.49} UT, 860.2 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 456188633 X_OFFSET: 918 [pixels] Y_OFFSET: 860 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1078 Y_GRB_POS: 1020 BINNING_INDEX: 1 IM_URL: sw00644259000msuni0874.fits SUN_POSTN: 85.08d {+05h 40m 20s} +23.36d {+23d 21' 35"} SUN_DIST: 132.17 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.10d {+06h 00m 23s} +18.46d {+18d 27' 48"} MOON_DIST: 130.96 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.53,-40.24 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 300.64,-34.59 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Image. COMMENTS: The GRB Position came from the XRT Position Command. COMMENTS: The image has 2x2 binning (compression). COMMENTS: All 4 attachments are included.
RA(J2000) = 20h 58m 49s Dec(J2000) = -53d 23' 36"with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex structure with a duration of at least 200 sec. The peak count rate was ~1500 counts/sec (15-350 keV), at ~3 sec after the trigger.
RA(J2000) = +20h 58m 51.74s Dec(J2000) = -53d 23' 32.3"with an uncertainty of 4.8 arcseconds (radius, 90% containment). This location is 23 arcseconds from the BAT onboard position, within the BAT error circle. No event data are yet available to determine the column density using X-ray spectroscopy.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:29:14 UT NOTICE_TYPE: Swift-XRT Position UPDATE TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.7162d {+20h 58m 51.88s} (J2000), 314.9963d {+20h 59m 59.10s} (current), 313.8063d {+20h 55m 13.51s} (1950) GRB_DEC: -53.3930d {-53d 23' 34.8"} (J2000), -53.3323d {-53d 19' 56.2"} (current), -53.5873d {-53d 35' 14.3"} (1950) GRB_ERROR: 3.5 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 1.00e-10 [erg/cm2/sec] GRB_SIGNIF: 10.00 [sigma] IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 83140.00 SOD {23:05:40.00} UT, 980.7 [sec] since BAT Trigger Time TAM[0-3]: 100.00 100.00 100.00 100.00 AMPLIFIER: 1 WAVEFORM: 31 SUN_POSTN: 85.10d {+05h 40m 24s} +23.36d {+23d 21' 37"} SUN_DIST: 132.16 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.30d {+06h 01m 12s} +18.46d {+18d 27' 42"} MOON_DIST: 131.05 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst ECL_COORDS: 300.65,-34.61 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: This Notice was ground-generated -- not flight-generated. COMMENTS: This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice. COMMENTS: TAM values, flux and significance fields are not valid. COMMENTS: This position was automatically generated on the ground using COMMENTS: Photon Counting data telemetered via TDRSS (SPER data). COMMENTS: See http://www.swift.ac.uk/sper/docs.php for details. COMMENTS: The probability that this is a serendipitous source in the COMMENTS: SPER window is 0.11% < P(seren) < 0.58%.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 16 Jun 15 23:53:23 UT NOTICE_TYPE: Swift-XRT Position UPDATE TRIGGER_NUM: 644259, Seg_Num: 0 GRB_RA: 314.7167d {+20h 58m 52.00s} (J2000), 314.9968d {+20h 59m 59.22s} (current), 313.8068d {+20h 55m 13.64s} (1950) GRB_DEC: -53.3929d {-53d 23' 34.4"} (J2000), -53.3322d {-53d 19' 55.9"} (current), -53.5872d {-53d 35' 13.9"} (1950) GRB_ERROR: 3.5 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 1.00e-10 [erg/cm2/sec] GRB_SIGNIF: 10.00 [sigma] IMG_START_DATE: 17189 TJD; 167 DOY; 15/06/16 IMG_START_TIME: 83140.00 SOD {23:05:40.00} UT, 980.7 [sec] since BAT Trigger Time TAM[0-3]: 100.00 100.00 100.00 100.00 AMPLIFIER: 1 WAVEFORM: 31 SUN_POSTN: 85.12d {+05h 40m 28s} +23.36d {+23d 21' 39"} SUN_DIST: 132.17 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 90.53d {+06h 02m 08s} +18.46d {+18d 27' 34"} MOON_DIST: 131.17 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 344.51,-40.25 [deg] galactic lon,lat of the burst ECL_COORDS: 300.65,-34.61 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: This Notice was ground-generated -- not flight-generated. COMMENTS: This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice. COMMENTS: TAM values, flux and significance fields are not valid. COMMENTS: This position was automatically generated on the ground using COMMENTS: Photon Counting data telemetered via TDRSS (SPER data). COMMENTS: See http://www.swift.ac.uk/sper/docs.php for details. COMMENTS: The probability that this is a serendipitous source in the COMMENTS: SPER window is 0.11% < P(seren) < 0.58%.
RA (J2000): 20h 58m 52.05s Dec (J2000): -53d 23' 37.8"with an uncertainty of 1.4 arcsec (radius, 90% confidence).
Total column: 4.6 (+/-0.5) x 10^21 cm^-2 Galactic foreground: 3.4 x 10^20 cm^-2 Excess significance: 15.3 sigma Photon index: 2.15 (+0.10, -0.09)If the light curve continues to decay with a power-law decay index of 0.94, the count rate at T+24 hours will be 0.050 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.9 x 10^-12 (3.3 x 10^-12) erg cm^-2 s^-1.
RA(J2000) = 20h 58m 51.1s Dec(J2000) = -53d 24' 11.3"with an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment). The partial coding was 28%.
Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 579 729 147 >21.0 white 579 7913 616 >21.8 v 736 2624 214 >19.6 b 836 2878 365 >20.5 u 810 2700 214 >20.5 w1 786 2674 214 >20.2 m2 760 2649 136 >19.9 w2 1016 2250 156 >20.1The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.04 in the direction of the burst (Schlegel et al. 1998).
Start | End | Exposure | Filter | Magnitude ------------------------------------------------------------------------------------------------- 22:52:09 UT | 22:53:15 UT | 10x5 sec | r' | >18.9 (3sigma upper limit)The upper limit was calculated using nearby stars from the APASS catalogue.