(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:19:15 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 531223, Seg_Num: 0 GRB_RA: 282.126d {+18h 48m 30s} (J2000), 282.296d {+18h 49m 11s} (current), 281.452d {+18h 45m 48s} (1950) GRB_DEC: -6.979d {-06d 58' 43"} (J2000), -6.964d {-06d 57' 50"} (current), -7.036d {-07d 02' 08"} (1950) GRB_ERROR: 3.00 [arcmin radius, statistical only] GRB_INTEN: 17536 [cnts] Image_Peak=194 [image_cnts] TRIGGER_DUR: 4.096 [sec] TRIGGER_INDEX: 295 E_range: 15-50 keV BKG_INTEN: 161716 [cnts] BKG_TIME: 69454.45 SOD {19:17:34.45} UT BKG_DUR: 40 [sec] GRB_DATE: 16155 TJD; 229 DOY; 12/08/16 GRB_TIME: 69514.74 SOD {19:18:34.74} UT GRB_PHI: 141.65 [deg] GRB_THETA: 46.65 [deg] SOLN_STATUS: 0x83 RATE_SIGNIF: 10.24 [sigma] IMAGE_SIGNIF: 6.94 [sigma] MERIT_PARAMS: +1 +0 +0 +2 +1 -3 +0 +1 +71 +0 SUN_POSTN: 146.61d {+09h 46m 27s} +13.42d {+13d 25' 04"} SUN_DIST: 135.97 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.81d {+08h 59m 15s} +12.17d {+12d 10' 15"} MOON_DIST: 147.54 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.38, -2.53 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 282.52, 15.93 [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: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection. COMMENTS: This trigger occurred at longitude,latitude = 22.61,19.07 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:20:57 UT NOTICE_TYPE: Swift-XRT Nack-Position TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.116d {+18h 48m 28s} (J2000) POINT_DEC: -6.963d {-06d 57' 44"} (J2000) IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69647.33 SOD {19:20:47.33} UT, 132.6 [sec] since BAT Trigger Time COUNTS: 4 Min_needed= 20 STD_DEV: 0.00 Max_StdDev_for_Good=28.44 [arcsec] PH2_ITER: 1 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: Thu 16 Aug 12 19:22:32 UT NOTICE_TYPE: Swift-BAT GRB Lightcurve TRIGGER_NUM: 531223, Seg_Num: 0 GRB_RA: 282.126d {+18h 48m 30s} (J2000), 282.296d {+18h 49m 11s} (current), 281.452d {+18h 45m 48s} (1950) GRB_DEC: -6.979d {-06d 58' 43"} (J2000), -6.964d {-06d 57' 50"} (current), -7.036d {-07d 02' 08"} (1950) GRB_DATE: 16155 TJD; 229 DOY; 12/08/16 GRB_TIME: 69514.74 SOD {19:18:34.74} UT TRIGGER_INDEX: 295 GRB_PHI: 141.65 [deg] GRB_THETA: 46.65 [deg] DELTA_TIME: 51.00 [sec] TRIGGER_DUR: 4.096 [sec] SOLN_STATUS: 0x83 RATE_SIGNIF: 10.24 [sigma] IMAGE_SIGNIF: 6.94 [sigma] LC_URL: sw00531223000msb.lc SUN_POSTN: 146.61d {+09h 46m 28s} +13.42d {+13d 25' 02"} SUN_DIST: 135.97 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.84d {+08h 59m 22s} +12.16d {+12d 09' 41"} MOON_DIST: 147.51 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.38, -2.53 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 282.52, 15.93 [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: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection. COMMENTS: This trigger occurred at longitude,latitude = 22.61,19.07 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:25:25 UT NOTICE_TYPE: Swift-XRT Position TRIGGER_NUM: 531223, Seg_Num: 0 GRB_RA: 282.1442d {+18h 48m 34.60s} (J2000), 282.3143d {+18h 49m 15.43s} (current), 281.4704d {+18h 45m 52.89s} (1950) GRB_DEC: -6.9375d {-06d 56' 15.0"} (J2000), -6.9226d {-06d 55' 21.4"} (current), -6.9945d {-06d 59' 40.0"} (1950) GRB_ERROR: 3.8 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 1.00e-10 [erg/cm2/sec] GRB_SIGNIF: 10.00 [sigma] IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69667.00 SOD {19:21:07.00} UT, 152.3 [sec] since BAT Trigger Time TAM[0-3]: 100.00 100.00 100.00 100.00 AMPLIFIER: 1 WAVEFORM: 31 SUN_POSTN: 146.62d {+09h 46m 28s} +13.42d {+13d 24' 60"} SUN_DIST: 135.97 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.87d {+08h 59m 28s} +12.15d {+12d 09' 12"} MOON_DIST: 147.50 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.43, -2.52 [deg] galactic lon,lat of the burst ECL_COORDS: 282.55, 15.97 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: This Notice was ground-generated -- not flight-generated. 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 0.58% < P(seren) < 1.1%.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:26:26 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.116d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 40"} (J2000) POINT_ROLL: 282.097d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69649.35 SOD {19:20:49.35} UT, 134.6 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 5.605 N_STARS: 190 X_OFFSET: 341 [pixels] Y_OFFSET: 500 [pixels] X_MAX: 1300 [pixels] Y_MAX: 1459 [pixels] DET_THRESH: 20 PHOTO_THRESH: 12 SL_URL: sw00531223000msufc0134.fits SUN_POSTN: 146.62d {+09h 46m 28s} +13.42d {+13d 24' 59"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.88d {+08h 59m 30s} +12.15d {+12d 09' 02"} MOON_DIST: 147.47 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.39, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.51, 15.95 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:27:16 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.116d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 40"} (J2000) POINT_ROLL: 282.097d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69649.35 SOD {19:20:49.35} UT, 134.6 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 5.605 N_STARS: 190 X_OFFSET: 341 [pixels] Y_OFFSET: 500 [pixels] X_MAX: 1300 [pixels] Y_MAX: 1459 [pixels] DET_THRESH: 20 PHOTO_THRESH: 12 SL_URL: sw00531223000msufc0134.fits SUN_POSTN: 146.62d {+09h 46m 28s} +13.42d {+13d 24' 58"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.88d {+08h 59m 32s} +12.15d {+12d 08' 53"} MOON_DIST: 147.46 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.39, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.51, 15.95 [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 16 Aug 12 19:28:18 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.116d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 40"} (J2000) ROLL: 282.097d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69649.35 SOD {19:20:49.35} UT, 134.6 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 366837658 X_OFFSET: 660 [pixels] Y_OFFSET: 819 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 820 Y_GRB_POS: 979 BINNING_INDEX: 1 IM_URL: sw00531223000msuni0144.fits SUN_POSTN: 146.62d {+09h 46m 28s} +13.42d {+13d 24' 57"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.89d {+08h 59m 34s} +12.15d {+12d 08' 43"} MOON_DIST: 147.45 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.39, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.51, 15.95 [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 16 Aug 12 19:28:30 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.116d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 40"} (J2000) ROLL: 282.097d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69649.35 SOD {19:20:49.35} UT, 134.6 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 366837658 X_OFFSET: 660 [pixels] Y_OFFSET: 819 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 820 Y_GRB_POS: 979 BINNING_INDEX: 1 IM_URL: sw00531223000msuni0144.fits SUN_POSTN: 146.62d {+09h 46m 28s} +13.42d {+13d 24' 57"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.89d {+08h 59m 34s} +12.14d {+12d 08' 41"} MOON_DIST: 147.45 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.39, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.51, 15.95 [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) = 18h 48m 30s Dec(J2000) = -06d 58' 43"with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single peak with a duration of about 5 sec. The peak count rate was ~800 counts/sec (15-350 keV), at ~2 sec after the trigger.
RA(J2000) = 18h 48m 34.63s Dec(J2000) = -06d 56' 15.1"with an uncertainty of 3.7 arcseconds (radius, 90% containment). This location is 162 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 http://www.swift.ac.uk/sper.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:34:09 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) POINT_ROLL: 282.099d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69807.45 SOD {19:23:27.45} UT, 292.7 [sec] since BAT Trigger Time FILTER: 7, U BKG_MEAN: 1.651 N_STARS: 190 X_OFFSET: 101 [pixels] Y_OFFSET: 260 [pixels] X_MAX: 1540 [pixels] Y_MAX: 1699 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00531223000msufc0292.fits SUN_POSTN: 146.62d {+09h 46m 29s} +13.41d {+13d 24' 53"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.94d {+08h 59m 46s} +12.13d {+12d 07' 43"} MOON_DIST: 147.40 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:34:38 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) POINT_ROLL: 282.099d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69807.45 SOD {19:23:27.45} UT, 292.7 [sec] since BAT Trigger Time FILTER: 7, U BKG_MEAN: 1.651 N_STARS: 190 X_OFFSET: 101 [pixels] Y_OFFSET: 260 [pixels] X_MAX: 1540 [pixels] Y_MAX: 1699 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00531223000msufc0292.fits SUN_POSTN: 146.62d {+09h 46m 29s} +13.41d {+13d 24' 52"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.95d {+08h 59m 48s} +12.13d {+12d 07' 38"} MOON_DIST: 147.40 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [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 16 Aug 12 19:34:55 UT NOTICE_TYPE: Swift-XRT Position UPDATE TRIGGER_NUM: 531223, Seg_Num: 0 GRB_RA: 282.1428d {+18h 48m 34.27s} (J2000), 282.3129d {+18h 49m 15.09s} (current), 281.4690d {+18h 45m 52.55s} (1950) GRB_DEC: -6.9382d {-06d 56' 17.5"} (J2000), -6.9233d {-06d 55' 23.9"} (current), -6.9952d {-06d 59' 42.5"} (1950) GRB_ERROR: 2.2 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 1.00e-10 [erg/cm2/sec] GRB_SIGNIF: 10.00 [sigma] IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69667.00 SOD {19:21:07.00} UT, 152.3 [sec] since BAT Trigger Time TAM[0-3]: 100.00 100.00 100.00 100.00 AMPLIFIER: 1 WAVEFORM: 31 SUN_POSTN: 146.62d {+09h 46m 29s} +13.41d {+13d 24' 52"} SUN_DIST: 135.97 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.95d {+08h 59m 48s} +12.13d {+12d 07' 36"} MOON_DIST: 147.42 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.43, -2.52 [deg] galactic lon,lat of the burst ECL_COORDS: 282.54, 15.97 [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: This position was enhanced using UVOT field astrometry. COMMENTS: The probability that this is a serendipitous source in the COMMENTS: SPER window is 0.58% < P(seren) < 1.1%.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:35:29 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) ROLL: 282.099d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69807.45 SOD {19:23:27.45} UT, 292.7 [sec] since BAT Trigger Time FILTER: 7, U EXPOSURE_ID: 366837817 X_OFFSET: 660 [pixels] Y_OFFSET: 819 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 820 Y_GRB_POS: 979 BINNING_INDEX: 1 IM_URL: sw00531223000msuni0302.fits SUN_POSTN: 146.62d {+09h 46m 30s} +13.41d {+13d 24' 52"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.96d {+08h 59m 49s} +12.12d {+12d 07' 30"} MOON_DIST: 147.39 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [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 16 Aug 12 19:35:37 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) ROLL: 282.099d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 69807.45 SOD {19:23:27.45} UT, 292.7 [sec] since BAT Trigger Time FILTER: 7, U EXPOSURE_ID: 366837817 X_OFFSET: 660 [pixels] Y_OFFSET: 819 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 820 Y_GRB_POS: 979 BINNING_INDEX: 1 IM_URL: sw00531223000msuni0302.fits SUN_POSTN: 146.62d {+09h 46m 30s} +13.41d {+13d 24' 51"} SUN_DIST: 135.95 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.96d {+08h 59m 50s} +12.12d {+12d 07' 28"} MOON_DIST: 147.39 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [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 16 Aug 12 19:39:38 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) POINT_ROLL: 282.098d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 70386.09 SOD {19:33:06.09} UT, 871.3 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 5.717 N_STARS: 190 X_OFFSET: 101 [pixels] Y_OFFSET: 260 [pixels] X_MAX: 1540 [pixels] Y_MAX: 1699 [pixels] DET_THRESH: 20 PHOTO_THRESH: 12 SL_URL: sw00531223000msufc0871.fits SUN_POSTN: 146.63d {+09h 46m 30s} +13.41d {+13d 24' 48"} SUN_DIST: 135.94 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 134.99d {+08h 59m 58s} +12.11d {+12d 06' 48"} MOON_DIST: 147.36 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 16 Aug 12 19:40:11 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) POINT_ROLL: 282.098d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 70386.09 SOD {19:33:06.09} UT, 871.3 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 5.717 N_STARS: 190 X_OFFSET: 101 [pixels] Y_OFFSET: 260 [pixels] X_MAX: 1540 [pixels] Y_MAX: 1699 [pixels] DET_THRESH: 20 PHOTO_THRESH: 12 SL_URL: sw00531223000msufc0871.fits SUN_POSTN: 146.63d {+09h 46m 30s} +13.41d {+13d 24' 48"} SUN_DIST: 135.94 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 135.00d {+08h 59m 59s} +12.11d {+12d 06' 42"} MOON_DIST: 147.35 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [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 16 Aug 12 19:41:26 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) ROLL: 282.098d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 70386.09 SOD {19:33:06.09} UT, 871.3 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 366838395 X_OFFSET: 660 [pixels] Y_OFFSET: 819 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 820 Y_GRB_POS: 979 BINNING_INDEX: 1 IM_URL: sw00531223000msuni0881.fits SUN_POSTN: 146.63d {+09h 46m 30s} +13.41d {+13d 24' 47"} SUN_DIST: 135.94 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 135.01d {+09h 00m 02s} +12.11d {+12d 06' 29"} MOON_DIST: 147.34 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [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 16 Aug 12 19:41:44 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 531223, Seg_Num: 0 POINT_RA: 282.117d {+18h 48m 28s} (J2000) POINT_DEC: -6.961d {-06d 57' 39"} (J2000) ROLL: 282.098d IMG_START_DATE: 16155 TJD; 229 DOY; 12/08/16 IMG_START_TIME: 70386.09 SOD {19:33:06.09} UT, 871.3 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 366838395 X_OFFSET: 660 [pixels] Y_OFFSET: 819 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 820 Y_GRB_POS: 979 BINNING_INDEX: 1 IM_URL: sw00531223000msuni0881.fits SUN_POSTN: 146.63d {+09h 46m 31s} +13.41d {+13d 24' 47"} SUN_DIST: 135.94 [deg] Sun_angle= -9.0 [hr] (East of Sun) MOON_POSTN: 135.01d {+09h 00m 03s} +12.11d {+12d 06' 26"} MOON_DIST: 147.34 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 26.40, -2.51 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 282.52, 15.95 [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.
start UT end UT t_exp(s) mlim Coadd? ---------------------------------------------------- 19:23:18.6 19:23:23.6 5 13.9 N 19:23:45.6 19:23:50.6 5 14.2 N 19:24:13.1 19:24:18.1 5 14.3 N 19:25:34.5 19:25:54.5 20 14.8 N 19:35:05.4 19:40:22.7 600 15.1 Y
RA(J2000) = 18:48:34.4 Dec(J2000) = -06:56:16with an approximate uncertainty of 1" in both coordinates.
T0+ white ----------------- 249s ~17.8 4844s >19.1calibrated against the R=15.2mag reference star USNO-B1.0 0830-0537586."
RA(J2000) = 18h 48m 32.0s Dec(J2000) = -06d 58' 51.6"with an uncertainty of 2.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 9%.
RA (J2000): 18h 48m 34.31s Dec (J2000): -06d 56' 16.5"with an uncertainty of 1.7 arcsec (radius, 90% confidence).
Total column: 6.4 (+1.5, -1.4) x 10^21 cm^-2 Galactic foreground: 3.7 x 10^21 cm^-2 Excess significance: 3.2 sigma Photon index: 2.10 (+0.26, -0.25)The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00531223.
Start End Vlim 27.6min 278min 17.7Magnitudes were estimated with the USNO-B1 cat.
Start, T0+ Filter, Exposure, OT, uplim (3 sigma) (UT) (mid, d) (s) 19:34:49 0.0115 R 40 n/d 16.0 19:36:01 0.0221 R 830 n/d 17.9 19:36:01 0.0539 R 3530 n/d 18.1
RA (J2000.0) = 18:48:34.5 = 282.14359 (deg) Dec (J2000.0) = -06:56:16.4 = -6.93788 (deg)and an estimated uncertainty of 0.6 arcsec (radius, 90% confidence, statistical + systematic). The UVOT detection is consistent with the optical afterglow reported by Rau et al. (2012, GCNC 13657). Source magnitudes and 3-sigma upper limits at this location are given below (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373).
Filter TSTART TSTOP Exp Time Mag Err ----------------------------------------------------- white 134 284 147 18.5 0.2 white 573 6306 598 19.9 0.2 v 117 6716 500 >19.0 b 548 11345 1174 >19.6 u 293 7286 672 >21.1 uvw1 672 7126 490 >21.1 uvm2 647 6921 490 >19.5 uvw2 599 6511 490 >19.8 -----------------------------------------------------The quoted magnitudes and upper limits have not been corrected for the Galactic extinction along the line of sight to this burst of E_{B-V} = 0.703 mag.