(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:29:08 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 987016, Seg_Num: 0 GRB_RA: 52.905d {+03h 31m 37s} (J2000), 53.238d {+03h 32m 57s} (current), 52.098d {+03h 28m 24s} (1950) GRB_DEC: +37.082d {+37d 04' 55"} (J2000), +37.151d {+37d 09' 03"} (current), +36.912d {+36d 54' 45"} (1950) GRB_ERROR: 3.00 [arcmin radius, statistical only] GRB_INTEN: 2665 [cnts] Image_Peak=195 [image_cnts] TRIGGER_DUR: 0.512 [sec] TRIGGER_INDEX: 124 E_range: 25-100 keV BKG_INTEN: 25600 [cnts] BKG_TIME: 55718.58 SOD {15:28:38.58} UT BKG_DUR: 8 [sec] GRB_DATE: 19067 TJD; 219 DOY; 20/08/06 GRB_TIME: 55729.91 SOD {15:28:49.91} UT GRB_PHI: -24.74 [deg] GRB_THETA: 38.50 [deg] SOLN_STATUS: 0x3 RATE_SIGNIF: 24.57 [sigma] IMAGE_SIGNIF: 11.05 [sigma] MERIT_PARAMS: +1 +0 +0 -1 +2 +1 +0 +0 -24 +0 SUN_POSTN: 137.09d {+09h 08m 21s} +16.44d {+16d 26' 40"} SUN_DIST: 75.35 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 351.96d {+23h 27m 51s} -8.97d {-08d 57' 59"} MOON_DIST: 73.49 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.58 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 59.71, 17.46 [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 = 252.35,15.31 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:30:44 UT NOTICE_TYPE: Swift-XRT Image TRIGGER_NUM: 987016, Seg_Num: 0 GRB_RA: 52.9298d {+03h 31m 43.1s} (J2000), 53.2631d {+03h 33m 03.1s} (current), 52.1228d {+03h 28m 29.4s} (1950) GRB_DEC: +37.0799d {+37d 04' 47.6"} (J2000), +37.1488d {+37d 08' 55.5"} (current), +36.9105d {+36d 54' 37.8"} (1950) GRB_ERROR: 4.7 [arcsec, radius, statistical plus systematic] GRB_INTEN: 82 [cnts] IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 55807.64 SOD {15:30:07.64} UT, 77.7 [sec] since BAT Trigger Time CENTROID_X: 272.64, raw= 273 [pixels] CENTROID_Y: 304.83, raw= 305 [pixels] ROLL: 80.07 [deg] GAIN: 1 MODE: 3, Long Image mode WAVEFORM: 134 EXPO_TIME: 2.50 [sec] GRB_POS_XRT_Y: 15.87 GRB_POS_XRT_Z: -81.93 IMAGE_URL: sw00987016000msxps_rw.img SUN_POSTN: 137.09d {+09h 08m 21s} +16.44d {+16d 26' 38"} SUN_DIST: 75.34 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 351.97d {+23h 27m 54s} -8.96d {-08d 57' 40"} MOON_DIST: 73.49 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.15,-15.57 [deg] galactic lon,lat of the burst ECL_COORDS: 59.73, 17.46 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:30:47 UT NOTICE_TYPE: Swift-XRT Processed Image TRIGGER_NUM: 987016, Seg_Num: 0 GRB_RA: 52.9298d {+03h 31m 43.1s} (J2000), 53.2631d {+03h 33m 03.1s} (current), 52.1228d {+03h 28m 29.4s} (1950) GRB_DEC: +37.0799d {+37d 04' 47.6"} (J2000), +37.1488d {+37d 08' 55.5"} (current), +36.9105d {+36d 54' 37.8"} (1950) GRB_ERROR: 4.7 [arcsec, radius, statistical plus systematic] GRB_INTEN: 82 [cnts] IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 55807.64 SOD {15:30:07.64} UT, 77.7 [sec] since BAT Trigger Time CENTROID_X: 272.64, raw= 273 [pixels] CENTROID_Y: 304.83, raw= 305 [pixels] ROLL: 80.07 [deg] GAIN: 1 MODE: 3, Long Image mode WAVEFORM: 134 EXPO_TIME: 2.50 [sec] GRB_POS_XRT_Y: 15.87 GRB_POS_XRT_Z: -81.93 IMAGE_URL: sw00987016000msxps_rw.img SUN_POSTN: 137.09d {+09h 08m 21s} +16.44d {+16d 26' 38"} SUN_DIST: 75.34 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 351.97d {+23h 27m 54s} -8.96d {-08d 57' 40"} MOON_DIST: 73.49 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.15,-15.57 [deg] galactic lon,lat of the burst ECL_COORDS: 59.73, 17.46 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Processed Image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:30:34 UT NOTICE_TYPE: Swift-XRT Position TRIGGER_NUM: 987016, Seg_Num: 0 GRB_RA: 52.9298d {+03h 31m 43.15s} (J2000), 53.2631d {+03h 33m 03.14s} (current), 52.1228d {+03h 28m 29.47s} (1950) GRB_DEC: +37.0799d {+37d 04' 47.6"} (J2000), +37.1488d {+37d 08' 55.5"} (current), +36.9105d {+36d 54' 37.8"} (1950) GRB_ERROR: 5.0 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 2.59e-09 [erg/cm2/sec] GRB_SIGNIF: 9.05 [sigma] IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 55807.64 SOD {15:30:07.64} UT, 77.7 [sec] since BAT Trigger Time TAM[0-3]: 327.65 237.18 261.45 243.46 AMPLIFIER: 2 WAVEFORM: 134 SUN_POSTN: 137.09d {+09h 08m 21s} +16.44d {+16d 26' 39"} SUN_DIST: 75.34 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 351.97d {+23h 27m 53s} -8.96d {-08d 57' 42"} MOON_DIST: 73.49 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.15,-15.57 [deg] galactic lon,lat of the burst ECL_COORDS: 59.73, 17.46 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: The XRT position is 1.18 arcmin from the BAT position.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:34:08 UT NOTICE_TYPE: Swift-BAT GRB Lightcurve TRIGGER_NUM: 14532607, Seg_Num: 0 GRB_RA: 52.905d {+03h 31m 37s} (J2000), 53.238d {+03h 32m 57s} (current), 52.098d {+03h 28m 24s} (1950) GRB_DEC: +37.082d {+37d 04' 55"} (J2000), +37.151d {+37d 09' 03"} (current), +36.912d {+36d 54' 45"} (1950) GRB_DATE: 19067 TJD; 219 DOY; 20/08/06 GRB_TIME: 55729.91 SOD {15:28:49.91} UT TRIGGER_INDEX: 124 GRB_PHI: -24.74 [deg] GRB_THETA: 38.50 [deg] DELTA_TIME: 1480.00 [sec] TRIGGER_DUR: 0.512 [sec] SOLN_STATUS: 0x3 RATE_SIGNIF: 0.00 [sigma] IMAGE_SIGNIF: 0.00 [sigma] LC_URL: sw00987016000msb.lc SUN_POSTN: 137.09d {+09h 08m 22s} +16.44d {+16d 26' 36"} SUN_DIST: 75.36 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.00d {+23h 28m 00s} -8.95d {-08d 57' 00"} MOON_DIST: 73.45 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.58 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 59.71, 17.46 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: SWIFT-BAT GRB Lightcurve. COMMENTS: COMMENTS: WARNING: No BAT_Position TDRSS message was received for this trigger_number! COMMENTS: COMMENTS: This does not match any source in the ground catalog. COMMENTS: This is a GRB. COMMENTS: This trigger occurred at longitude,latitude = 252.35,15.31 [deg]. COMMENTS: The 3rd packet (of 3) was missing in the lightcurve data stream.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:44:56 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.903d {+03h 31m 37s} (J2000) POINT_DEC: +37.071d {+37d 04' 15"} (J2000) POINT_ROLL: 80.071d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 55816.15 SOD {15:30:16.15} UT, 86.2 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 3.993 N_STARS: 77 X_OFFSET: 480 [pixels] Y_OFFSET: 488 [pixels] X_MAX: 1439 [pixels] Y_MAX: 1447 [pixels] DET_THRESH: 17 PHOTO_THRESH: 9 SL_URL: sw00987016000msufc0086.fits SUN_POSTN: 137.10d {+09h 08m 24s} +16.44d {+16d 26' 29"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.09d {+23h 28m 21s} -8.92d {-08d 54' 54"} MOON_DIST: 73.36 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.14,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.45 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Fri 29 May 20 01:07:47 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 974942, Seg_Num: 0 POINT_RA: 238.839d {+15h 55m 21s} (J2000) POINT_DEC: -11.062d {-11d 03' 43"} (J2000) ROLL: 326.309d IMG_START_DATE: 18998 TJD; 150 DOY; 20/05/29 IMG_START_TIME: 3611.94 SOD {01:00:11.94} UT, 216.2 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 612406836 X_OFFSET: 886 [pixels] Y_OFFSET: 319 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1046 Y_GRB_POS: 479 BINNING_INDEX: 1 IM_URL: sw00974942000msuni0242.fits SUN_POSTN: 66.39d {+04h 25m 33s} +21.66d {+21d 39' 44"} SUN_DIST: 167.37 [deg] Sun_angle= -11.5 [hr] (East of Sun) MOON_POSTN: 147.77d {+09h 51m 04s} +17.64d {+17d 38' 39"} MOON_DIST: 94.62 [deg] MOON_ILLUM: 38 [%] GAL_COORDS: 358.61, 31.30 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 239.05, 9.09 [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: All 4 attachments are included.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:46:47 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.903d {+03h 31m 37s} (J2000) POINT_DEC: +37.071d {+37d 04' 15"} (J2000) ROLL: 80.071d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 55816.15 SOD {15:30:16.15} UT, 86.2 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 618420641 X_OFFSET: 939 [pixels] Y_OFFSET: 779 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1099 Y_GRB_POS: 939 BINNING_INDEX: 1 IM_URL: sw00987016000msuni0112.fits SUN_POSTN: 137.10d {+09h 08m 24s} +16.44d {+16d 26' 27"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.10d {+23h 28m 24s} -8.91d {-08d 54' 32"} MOON_DIST: 73.34 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.14,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.45 [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 06 Aug 20 15:46:54 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.903d {+03h 31m 37s} (J2000) POINT_DEC: +37.071d {+37d 04' 15"} (J2000) ROLL: 80.071d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 55816.15 SOD {15:30:16.15} UT, 86.2 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 618420641 X_OFFSET: 939 [pixels] Y_OFFSET: 779 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1099 Y_GRB_POS: 939 BINNING_INDEX: 1 IM_URL: sw00987016000msuni0112.fits SUN_POSTN: 137.10d {+09h 08m 24s} +16.44d {+16d 26' 27"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.10d {+23h 28m 24s} -8.91d {-08d 54' 31"} MOON_DIST: 73.34 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.14,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.45 [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: Thu 06 Aug 20 15:51:05 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.901d {+03h 31m 36s} (J2000) POINT_DEC: +37.074d {+37d 04' 26"} (J2000) POINT_ROLL: 80.070d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56029.46 SOD {15:33:49.46} UT, 299.5 [sec] since BAT Trigger Time FILTER: 7, U BKG_MEAN: 1.849 N_STARS: 37 X_OFFSET: 619 [pixels] Y_OFFSET: 459 [pixels] X_MAX: 1578 [pixels] Y_MAX: 1418 [pixels] DET_THRESH: 11 PHOTO_THRESH: 6 SL_URL: sw00987016000msufc0299.fits SUN_POSTN: 137.10d {+09h 08m 25s} +16.44d {+16d 26' 24"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.13d {+23h 28m 32s} -8.90d {-08d 53' 42"} MOON_DIST: 73.31 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.46 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:51:15 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.901d {+03h 31m 36s} (J2000) POINT_DEC: +37.074d {+37d 04' 26"} (J2000) POINT_ROLL: 80.070d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56029.46 SOD {15:33:49.46} UT, 299.5 [sec] since BAT Trigger Time FILTER: 7, U BKG_MEAN: 1.849 N_STARS: 37 X_OFFSET: 619 [pixels] Y_OFFSET: 459 [pixels] X_MAX: 1578 [pixels] Y_MAX: 1418 [pixels] DET_THRESH: 11 PHOTO_THRESH: 6 SL_URL: sw00987016000msufc0299.fits SUN_POSTN: 137.10d {+09h 08m 25s} +16.44d {+16d 26' 24"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.14d {+23h 28m 33s} -8.89d {-08d 53' 40"} MOON_DIST: 73.31 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.46 [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 24 Mar 20 16:58:44 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 963260, Seg_Num: 0 POINT_RA: 222.702d {+14h 50m 49s} (J2000) POINT_DEC: +35.997d {+35d 59' 49"} (J2000) ROLL: 52.157d IMG_START_DATE: 18932 TJD; 84 DOY; 20/03/24 IMG_START_TIME: 60807.91 SOD {16:53:27.91} UT, 860.0 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 606761632 X_OFFSET: 559 [pixels] Y_OFFSET: 1167 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 719 Y_GRB_POS: 1327 BINNING_INDEX: 1 IM_URL: sw00963260000msuni0884.fits SUN_POSTN: 4.15d {+00h 16m 35s} +1.79d {+01d 47' 42"} SUN_DIST: 127.80 [deg] Sun_angle= 9.4 [hr] (West of Sun) MOON_POSTN: 9.15d {+00h 36m 36s} -1.44d {-01d 26' 09"} MOON_DIST: 133.46 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 59.70, 63.20 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 204.39, 49.24 [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: Thu 06 Aug 20 15:53:50 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 0.000d {+00h 00m 00s} (J2000) POINT_DEC: +0.000d {+00d 00' 00"} (J2000) ROLL: 37.074d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56749.86 SOD {15:45:49.86} UT, 1019.9 [sec] since BAT Trigger Time FILTER: 0, illegal value EXPOSURE_ID: 65537 X_OFFSET: 911 [pixels] Y_OFFSET: 1280 [pixels] WIDTH: 800 [pixels] HEIGHT: 1821 [pixels] X_GRB_POS: 0 Y_GRB_POS: 0 BINNING_INDEX: 0 IM_URL: sw00987016000msuni0325.fits SUN_POSTN: 137.10d {+09h 08m 25s} +16.44d {+16d 26' 22"} SUN_DIST: 134.35 [deg] Sun_angle= 9.1 [hr] (West of Sun) MOON_POSTN: 352.16d {+23h 28m 37s} -8.89d {-08d 53' 10"} MOON_DIST: 12.09 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 96.34,-60.19 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 0.00, 0.00 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Processed Image. COMMENTS: WARNING: This Notice was received with 1 (or more) critical values out of range. COMMENTS: The GRB Position came from the Window Position in the Mode Command. COMMENTS: The image has 1x1 binning (ie no compression). COMMENTS: All 4 attachments are included. COMMENTS: This notice was forced out after watchdog timer expiring -- most likely due to missing packet(s); COMMENTS: as a consequence some of the fields may be incoorect (eg TRIGGER_NUM,RA,DEC).
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:54:44 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.901d {+03h 31m 36s} (J2000) POINT_DEC: +37.074d {+37d 04' 26"} (J2000) POINT_ROLL: 80.069d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56605.99 SOD {15:43:25.99} UT, 876.1 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 7.502 N_STARS: 171 X_OFFSET: 379 [pixels] Y_OFFSET: 219 [pixels] X_MAX: 1818 [pixels] Y_MAX: 1658 [pixels] DET_THRESH: 24 PHOTO_THRESH: 15 SL_URL: sw00987016000msufc0876.fits SUN_POSTN: 137.11d {+09h 08m 25s} +16.44d {+16d 26' 22"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.16d {+23h 28m 39s} -8.88d {-08d 52' 59"} MOON_DIST: 73.28 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.46 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 15:55:00 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.901d {+03h 31m 36s} (J2000) POINT_DEC: +37.074d {+37d 04' 26"} (J2000) POINT_ROLL: 80.069d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56605.99 SOD {15:43:25.99} UT, 876.1 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 7.502 N_STARS: 171 X_OFFSET: 379 [pixels] Y_OFFSET: 219 [pixels] X_MAX: 1818 [pixels] Y_MAX: 1658 [pixels] DET_THRESH: 24 PHOTO_THRESH: 15 SL_URL: sw00987016000msufc0876.fits SUN_POSTN: 137.11d {+09h 08m 25s} +16.44d {+16d 26' 22"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.17d {+23h 28m 40s} -8.88d {-08d 52' 56"} MOON_DIST: 73.28 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.46 [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: Thu 06 Aug 20 15:55:41 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 987016, Seg_Num: 0 POINT_RA: 52.901d {+03h 31m 36s} (J2000) POINT_DEC: +37.074d {+37d 04' 26"} (J2000) ROLL: 80.069d IMG_START_DATE: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56605.99 SOD {15:43:25.99} UT, 876.1 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 618421431 X_OFFSET: 938 [pixels] Y_OFFSET: 778 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1098 Y_GRB_POS: 938 BINNING_INDEX: 1 IM_URL: sw00987016000msuni0902.fits SUN_POSTN: 137.11d {+09h 08m 25s} +16.44d {+16d 26' 21"} SUN_DIST: 75.37 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.17d {+23h 28m 41s} -8.88d {-08d 52' 48"} MOON_DIST: 73.27 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.13,-15.59 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 59.70, 17.46 [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: All 4 attachments are included.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Tue 24 Mar 20 16:58:55 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 963260, Seg_Num: 0 POINT_RA: 222.702d {+14h 50m 49s} (J2000) POINT_DEC: +35.997d {+35d 59' 49"} (J2000) ROLL: 52.157d IMG_START_DATE: 18932 TJD; 84 DOY; 20/03/24 IMG_START_TIME: 60807.91 SOD {16:53:27.91} UT, 860.0 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 606761632 X_OFFSET: 559 [pixels] Y_OFFSET: 1167 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 719 Y_GRB_POS: 1327 BINNING_INDEX: 1 IM_URL: sw00963260000msuni0884.fits SUN_POSTN: 4.15d {+00h 16m 35s} +1.79d {+01d 47' 42"} SUN_DIST: 127.80 [deg] Sun_angle= 9.4 [hr] (West of Sun) MOON_POSTN: 9.15d {+00h 36m 37s} -1.44d {-01d 26' 06"} MOON_DIST: 133.46 [deg] MOON_ILLUM: 0 [%] GAL_COORDS: 59.70, 63.20 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 204.39, 49.24 [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: All 4 attachments are included.
RA(J2000) = 03h 31m 37s Dec(J2000) = +37d 04' 55"with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a pulse that starts at ~T0 and lasts beyond the currently available data, which ends at ~T+8 s. The peak count rate was ~4800 counts/sec (15-350 keV), at ~0 sec after the trigger.
RA(J2000) = 03h 31m 43.62s Dec(J2000) = +37d 04' 42.4"with an uncertainty of 3.5 arcseconds (radius, 90% containment). This location is 77 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at https://www.swift.ac.uk/sper.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 06 Aug 20 16:06:40 UT NOTICE_TYPE: Swift-XRT Position UPDATE TRIGGER_NUM: 987016, Seg_Num: 0 GRB_RA: 52.9317d {+03h 31m 43.60s} (J2000), 53.2650d {+03h 33m 03.59s} (current), 52.1247d {+03h 28m 29.93s} (1950) GRB_DEC: +37.0784d {+37d 04' 42.2"} (J2000), +37.1473d {+37d 08' 50.1"} (current), +36.9090d {+36d 54' 32.4"} (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: 19067 TJD; 219 DOY; 20/08/06 IMG_START_TIME: 56165.00 SOD {15:36:05.00} UT, 435.1 [sec] since BAT Trigger Time TAM[0-3]: 100.00 100.00 100.00 100.00 AMPLIFIER: 1 WAVEFORM: 31 SUN_POSTN: 137.11d {+09h 08m 27s} +16.44d {+16d 26' 13"} SUN_DIST: 75.36 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 352.26d {+23h 29m 02s} -8.84d {-08d 50' 39"} MOON_DIST: 73.21 [deg] MOON_ILLUM: 91 [%] GAL_COORDS: 155.15,-15.57 [deg] galactic lon,lat of the burst ECL_COORDS: 59.73, 17.45 [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 1.1% < P(seren) < 2.8%.
Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 18076 | MASTER-Tavrida | C | 180 | 16.8 | 21887 | MASTER-Tavrida | C | 180 | 17.5 |Filter C is a clear (unfiltred) band.
RA (J2000): 03h 31m 43.71s Dec (J2000): +37d 04' 43.5"with an uncertainty of 1.7 arcsec (radius, 90% confidence).
T0+[min] MID-UT T-EXP[sec] 5-sigma limits ------------------------------------------------------------------------------------------------ 19 2020-08-06T15:57:10 960 g'>16.7, Rc>16.7, Ic>16.9 ------------------------------------------------------------------------------------------------ T0+: Elapsed time after the burst T-EXP: Total Exposure timeWe used the PS1 catalog for flux calibration. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al., submitted; https://github.com/MNiwano/Eclaire)
Date UT start t-T0 Filter Exp. OT Err. UL (mid, days) (s) 2020-08-06 23:42:53 0.36498 R 63*60 n/d n/d 21.0The photometry is based on nearby USNO-B1.0 stars
USNO-B1.0_id R2 1270-0058216 15.48 1270-0058260 14.22 1270-0058260 14.98 1271-0065622 15.31
Total column: 4.8 (+0.9, -0.8) x 10^21 cm^-2 Galactic foreground: 2.6 x 10^21 cm^-2 Excess significance: 4.5 sigma Photon index: 1.85 (+/-0.14)If the light curve continues to decay with a power-law decay index of 1.01, the count rate at T+24 hours will be 0.023 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 9.9 x 10^-13 (1.5 x 10^-12) erg cm^-2 s^-1.
Filter T_start(s) T_stop(s) Exp(s) Mag white 86 236 147 20.26 +/- 0.28 v 629 821 39 >17.9 b 555 747 39 >19.3 u 300 722 265 >19.5 w1 678 870 39 >18.8 m2 653 845 39 >19.4 w2 604 1052 58 >19.0The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.42 in the direction of the burst (Schlegel et al. 1998).
RA(J2000) = 03h 31m 43.9s Dec(J2000) = +37d 04' 33.5"with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 57%.
T_mid ||Exposure ||Filter ||Limit T+16 hrs ||5810s ||R ||19.6The limit is estimated from comparison to nearby USNO B1 stars and is not corrected for Galactic extinction. The VIRT is still in the commissioning phase.