(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:10:08 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 518792, Seg_Num: 0 GRB_RA: 241.550d {+16h 06m 12s} (J2000), 241.756d {+16h 07m 01s} (current), 240.710d {+16h 02m 50s} (1950) GRB_DEC: -39.340d {-39d 20' 24"} (J2000), -39.373d {-39d 22' 20"} (current), -39.206d {-39d 12' 20"} (1950) GRB_ERROR: 3.00 [arcmin radius, statistical only] GRB_INTEN: 6269 [cnts] Image_Peak=191 [image_cnts] TRIGGER_DUR: 1.408 [sec] TRIGGER_INDEX: 472 E_range: 25-100 keV BKG_INTEN: 61222 [cnts] BKG_TIME: 11151.96 SOD {03:05:51.96} UT BKG_DUR: 16 [sec] GRB_DATE: 16014 TJD; 88 DOY; 12/03/28 GRB_TIME: 11179.03 SOD {03:06:19.03} UT GRB_PHI: 2.22 [deg] GRB_THETA: 10.84 [deg] SOLN_STATUS: 0x83 RATE_SIGNIF: 13.19 [sigma] IMAGE_SIGNIF: 6.57 [sigma] MERIT_PARAMS: +1 +0 +0 +0 +2 -4 +0 +1 +48 +0 SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 45"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.25d {+04h 25m 00s} +21.47d {+21d 28' 16"} MOON_DIST: 161.69 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 247.19,-18.13 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: SWIFT-BAT GRB Coordinates. COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval; COMMENTS: probably due to it occurring during a Malindi downlink session. 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 = 11.56,0.49 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:10:53 UT NOTICE_TYPE: Swift-XRT Position TRIGGER_NUM: 518792, Seg_Num: 0 GRB_RA: 241.6127d {+16h 06m 27.04s} (J2000), 241.8187d {+16h 07m 16.48s} (current), 240.7727d {+16h 03m 05.45s} (1950) GRB_DEC: -39.3351d {-39d 20' 06.3"} (J2000), -39.3674d {-39d 22' 02.5"} (current), -39.2009d {-39d 12' 03.3"} (1950) GRB_ERROR: 5.3 [arcsec radius, statistical plus systematic, 90% containment] GRB_INTEN: 1.53e-09 [erg/cm2/sec] GRB_SIGNIF: 7.21 [sigma] IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11247.25 SOD {03:07:27.25} UT, 68.2 [sec] since BAT Trigger Time TAM[0-3]: 327.65 237.22 261.36 243.80 AMPLIFIER: 2 WAVEFORM: 134 SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 46"} SUN_DIST: 118.78 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.26d {+04h 25m 02s} +21.47d {+21d 28' 18"} MOON_DIST: 161.71 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.06, 9.49 [deg] galactic lon,lat of the burst ECL_COORDS: 247.24,-18.11 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: The XRT position is 2.93 arcmin from the BAT position.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:11:08 UT NOTICE_TYPE: Swift-XRT Image TRIGGER_NUM: 518792, Seg_Num: 0 GRB_RA: 241.6127d {+16h 06m 27.0s} (J2000), 241.8187d {+16h 07m 16.4s} (current), 240.7727d {+16h 03m 05.4s} (1950) GRB_DEC: -39.3351d {-39d 20' 06.3"} (J2000), -39.3674d {-39d 22' 02.5"} (current), -39.2009d {-39d 12' 03.3"} (1950) GRB_ERROR: 5.0 [arcsec, radius, statistical plus systematic] GRB_INTEN: 52 [cnts] IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11247.25 SOD {03:07:27.25} UT, 68.2 [sec] since BAT Trigger Time CENTROID_X: 239.08, raw= 239 [pixels] CENTROID_Y: 330.22, raw= 330 [pixels] ROLL: 111.96 [deg] GAIN: 1 MODE: 3, Long Image mode WAVEFORM: 134 EXPO_TIME: 2.50 [sec] GRB_POS_XRT_Y: 75.97 GRB_POS_XRT_Z: -152.31 IMAGE_URL: sw00518792000msxps_rw.img SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 46"} SUN_DIST: 118.78 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.26d {+04h 25m 02s} +21.47d {+21d 28' 18"} MOON_DIST: 161.71 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.06, 9.49 [deg] galactic lon,lat of the burst ECL_COORDS: 247.24,-18.11 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:11:19 UT NOTICE_TYPE: Swift-XRT Processed Image TRIGGER_NUM: 518792, Seg_Num: 0 GRB_RA: 241.6127d {+16h 06m 27.0s} (J2000), 241.8187d {+16h 07m 16.4s} (current), 240.7727d {+16h 03m 05.4s} (1950) GRB_DEC: -39.3351d {-39d 20' 06.3"} (J2000), -39.3674d {-39d 22' 02.5"} (current), -39.2009d {-39d 12' 03.3"} (1950) GRB_ERROR: 5.0 [arcsec, radius, statistical plus systematic] GRB_INTEN: 52 [cnts] IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11247.25 SOD {03:07:27.25} UT, 68.2 [sec] since BAT Trigger Time CENTROID_X: 239.08, raw= 239 [pixels] CENTROID_Y: 330.22, raw= 330 [pixels] ROLL: 111.96 [deg] GAIN: 1 MODE: 3, Long Image mode WAVEFORM: 134 EXPO_TIME: 2.50 [sec] GRB_POS_XRT_Y: 75.97 GRB_POS_XRT_Z: -152.31 IMAGE_URL: sw00518792000msxps_rw.img SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 46"} SUN_DIST: 118.78 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.26d {+04h 25m 03s} +21.47d {+21d 28' 19"} MOON_DIST: 161.71 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.06, 9.49 [deg] galactic lon,lat of the burst ECL_COORDS: 247.24,-18.11 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Processed Image.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:12:20 UT NOTICE_TYPE: Swift-BAT GRB Lightcurve TRIGGER_NUM: 518792, Seg_Num: 0 GRB_RA: 241.550d {+16h 06m 12s} (J2000), 241.756d {+16h 07m 01s} (current), 240.710d {+16h 02m 50s} (1950) GRB_DEC: -39.340d {-39d 20' 24"} (J2000), -39.373d {-39d 22' 20"} (current), -39.206d {-39d 12' 20"} (1950) GRB_DATE: 16014 TJD; 88 DOY; 12/03/28 GRB_TIME: 11179.03 SOD {03:06:19.03} UT TRIGGER_INDEX: 472 GRB_PHI: 2.22 [deg] GRB_THETA: 10.84 [deg] DELTA_TIME: 12.00 [sec] TRIGGER_DUR: 1.408 [sec] SOLN_STATUS: 0x83 RATE_SIGNIF: 13.19 [sigma] IMAGE_SIGNIF: 6.57 [sigma] LC_URL: sw00518792000msb.lc SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 47"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.27d {+04h 25m 05s} +21.47d {+21d 28' 21"} MOON_DIST: 161.69 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 247.19,-18.13 [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 = 11.56,0.49 [deg].
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:12:47 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.339d {-39d 20' 19"} (J2000) POINT_ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11257.08 SOD {03:07:37.08} UT, 78.0 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 4.026 N_STARS: 175 X_OFFSET: 488 [pixels] Y_OFFSET: 576 [pixels] X_MAX: 1447 [pixels] Y_MAX: 1535 [pixels] DET_THRESH: 17 PHOTO_THRESH: 9 SL_URL: sw00518792000msufc0078.fits SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 48"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.27d {+04h 25m 06s} +21.47d {+21d 28' 22"} MOON_DIST: 161.69 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.13 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:13:18 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.339d {-39d 20' 19"} (J2000) POINT_ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11257.08 SOD {03:07:37.08} UT, 78.0 [sec] since BAT Trigger Time FILTER: 10, White BKG_MEAN: 4.026 N_STARS: 175 X_OFFSET: 488 [pixels] Y_OFFSET: 576 [pixels] X_MAX: 1447 [pixels] Y_MAX: 1535 [pixels] DET_THRESH: 17 PHOTO_THRESH: 9 SL_URL: sw00518792000msufc0078.fits SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 48"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.28d {+04h 25m 07s} +21.47d {+21d 28' 23"} MOON_DIST: 161.69 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.13 [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: Wed 28 Mar 12 03:14:29 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.339d {-39d 20' 19"} (J2000) ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11257.08 SOD {03:07:37.08} UT, 78.0 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 354596865 X_OFFSET: 999 [pixels] Y_OFFSET: 606 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1159 Y_GRB_POS: 766 BINNING_INDEX: 1 IM_URL: sw00518792000msuni0087.fits SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 49"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.29d {+04h 25m 09s} +21.47d {+21d 28' 25"} MOON_DIST: 161.69 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.13 [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: Wed 28 Mar 12 03:14:53 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.339d {-39d 20' 19"} (J2000) ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11257.08 SOD {03:07:37.08} UT, 78.0 [sec] since BAT Trigger Time FILTER: 10, White EXPOSURE_ID: 354596865 X_OFFSET: 999 [pixels] Y_OFFSET: 606 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1159 Y_GRB_POS: 766 BINNING_INDEX: 1 IM_URL: sw00518792000msuni0087.fits SUN_POSTN: 7.21d {+00h 28m 50s} +3.11d {+03d 06' 50"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.29d {+04h 25m 10s} +21.47d {+21d 28' 26"} MOON_DIST: 161.69 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.13 [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) = 16h 06m 12s Dec(J2000) = -39d 20' 24"with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex structure with broad peak preceding a shorter spike for a total duration of about 20 sec. The peak count rate was ~1500 counts/sec (15-350 keV), at ~1 sec after the trigger.
RA(J2000) = 16h 06m 27.11s Dec(J2000) = -39d 20' 11.9"with an uncertainty of 3.9 arcseconds (radius, 90% containment). This location is 175 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: Wed 28 Mar 12 03:20:48 UT NOTICE_TYPE: Swift-UVOT Source List TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.337d {-39d 20' 12"} (J2000) POINT_ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11469.29 SOD {03:11:09.29} UT, 290.3 [sec] since BAT Trigger Time FILTER: 7, U BKG_MEAN: 1.780 N_STARS: 180 X_OFFSET: 679 [pixels] Y_OFFSET: 286 [pixels] X_MAX: 1638 [pixels] Y_MAX: 1245 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00518792000msufc0290.fits SUN_POSTN: 7.21d {+00h 28m 51s} +3.12d {+03d 06' 55"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.35d {+04h 25m 23s} +21.48d {+21d 28' 39"} MOON_DIST: 161.68 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.12 [deg] ecliptic lon,lat of the pointing direction COMMENTS: SWIFT-UVOT Source List.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:21:11 UT NOTICE_TYPE: Swift-UVOT Processed Source List TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.337d {-39d 20' 12"} (J2000) POINT_ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11469.29 SOD {03:11:09.29} UT, 290.3 [sec] since BAT Trigger Time FILTER: 7, U BKG_MEAN: 1.780 N_STARS: 180 X_OFFSET: 679 [pixels] Y_OFFSET: 286 [pixels] X_MAX: 1638 [pixels] Y_MAX: 1245 [pixels] DET_THRESH: 11 PHOTO_THRESH: 5 SL_URL: sw00518792000msufc0290.fits SUN_POSTN: 7.21d {+00h 28m 51s} +3.12d {+03d 06' 56"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.35d {+04h 25m 24s} +21.48d {+21d 28' 39"} MOON_DIST: 161.68 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.12 [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_catalog_srclist.fits.gz file does not exist; skipping the attachment.
TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Wed 28 Mar 12 03:22:14 UT NOTICE_TYPE: Swift-UVOT Image TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.337d {-39d 20' 12"} (J2000) ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11469.29 SOD {03:11:09.29} UT, 290.3 [sec] since BAT Trigger Time FILTER: 7, U EXPOSURE_ID: 354597077 X_OFFSET: 999 [pixels] Y_OFFSET: 606 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1159 Y_GRB_POS: 766 BINNING_INDEX: 1 IM_URL: sw00518792000msuni0299.fits SUN_POSTN: 7.21d {+00h 28m 52s} +3.12d {+03d 06' 57"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.36d {+04h 25m 26s} +21.48d {+21d 28' 42"} MOON_DIST: 161.68 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.12 [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: Wed 28 Mar 12 03:22:27 UT NOTICE_TYPE: Swift-UVOT Processed Image TRIGGER_NUM: 518792, Seg_Num: 0 POINT_RA: 241.552d {+16h 06m 13s} (J2000) POINT_DEC: -39.337d {-39d 20' 12"} (J2000) ROLL: 111.957d IMG_START_DATE: 16014 TJD; 88 DOY; 12/03/28 IMG_START_TIME: 11469.29 SOD {03:11:09.29} UT, 290.3 [sec] since BAT Trigger Time FILTER: 7, U EXPOSURE_ID: 354597077 X_OFFSET: 999 [pixels] Y_OFFSET: 606 [pixels] WIDTH: 160 [pixels] HEIGHT: 160 [pixels] X_GRB_POS: 1159 Y_GRB_POS: 766 BINNING_INDEX: 1 IM_URL: sw00518792000msuni0299.fits SUN_POSTN: 7.21d {+00h 28m 52s} +3.12d {+03d 06' 57"} SUN_DIST: 118.83 [deg] Sun_angle= 8.4 [hr] (West of Sun) MOON_POSTN: 66.36d {+04h 25m 26s} +21.48d {+21d 28' 42"} MOON_DIST: 161.68 [deg] MOON_ILLUM: 25 [%] GAL_COORDS: 339.02, 9.52 [deg] galactic lon,lat of the pointing direction ECL_COORDS: 247.19,-18.12 [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): 16h 06m 27.30s Dec (J2000): -39d 20' 08.3"with an uncertainty of 1.9 arcsec (radius, 90% confidence).
RA(J2000) = 16h 06m 25.8s Dec(J2000) = -39d 19' 20.8"with an uncertainty of 1.8 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%.
Total column: 1.9 (+0.5, -0.4) x 10^22 cm^-2 Galactic foreground: 1.6 x 10^21 cm^-2 Excess significance: 6.9 sigma Photon index: 3.0 (+0.5, -0.4)The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00518792.
Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 78 228 147 >20.6 u_FC 290 540 246 >19.6 white 78 764 186 >20.5 v 621 813 39 >18.2 b 547 739 39 >19.1 u 290 715 265 >19.8 w1 670 862 39 >18.9 w2 769 789 20 >18.6The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.73 in the direction of the burst (Schlegel et al. 1998).
#T0+[day] MID-UT T-EXP[sec] g' Rc Ic ---------------------------------------------------------------------- 0.68772 19:36:38 4800.0 >20.1 >20.4 >19.3 ---------------------------------------------------------------------- T0+ : Elapsed time after the burst [day] T-EXP: Total Exposure time [sec]