Gamma-ray Burst 130527A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:21:53 UT
  NOTICE_TYPE:     Swift-BAT GRB Position
  TRIGGER_NUM:     556753,   Seg_Num: 0
  GRB_RA:          309.279d {+20h 37m 07s} (J2000),
                   309.477d {+20h 37m 54s} (current),
                   308.538d {+20h 34m 09s} (1950)
  GRB_DEC:         -24.728d {-24d 43' 39"} (J2000),
                   -24.680d {-24d 40' 49"} (current),
                   -24.903d {-24d 54' 09"} (1950)
  GRB_ERROR:       3.00 [arcmin radius, statistical only]
  GRB_INTEN:       16007 [cnts]    Image_Peak=444 [image_cnts]
  TRIGGER_DUR:     1.024 [sec] 
  TRIGGER_INDEX:   155     E_range: 50-350 keV
  BKG_INTEN:       17295 [cnts]
  BKG_TIME:        51677.39 SOD {14:21:17.39} UT
  BKG_DUR:         8 [sec]
  GRB_DATE:        16439 TJD;   147 DOY;   13/05/27
  GRB_TIME:        51690.19 SOD {14:21:30.19} UT
  GRB_PHI:         155.84 [deg]
  GRB_THETA:        48.75 [deg]
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     255.99 [sigma]
  IMAGE_SIGNIF:    13.89 [sigma]
  MERIT_PARAMS:     +1  +0  +0  +0  +3  +3  +0  +0 +51  +0 
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.38d {+21d 23' 06"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.18d {+18h 44m 43s}  -18.88d {-18d 52' 39"}
  MOON_DIST:        26.86 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.40 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      305.32, -5.98 [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 = 184.85,-20.31 [deg].  
  

• red DSS finding chart ps-file
  
  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:23:54 UT
  NOTICE_TYPE:     Swift-XRT Position
  TRIGGER_NUM:     556753,   Seg_Num: 0
  GRB_RA:          309.2749d {+20h 37m 05.97s} (J2000),
                   309.4731d {+20h 37m 53.55s} (current),
                   308.5342d {+20h 34m 08.21s} (1950)
  GRB_DEC:         -24.7244d {-24d 43' 27.8"} (J2000),
                   -24.6771d {-24d 40' 37.4"} (current),
                   -24.8992d {-24d 53' 57.2"} (1950)
  GRB_ERROR:       5.0 [arcsec radius, statistical plus systematic, 90% containment]
  GRB_INTEN:       2.88e-09 [erg/cm2/sec]
  GRB_SIGNIF:      9.05 [sigma]
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51795.44 SOD {14:23:15.44} UT,   105.2 [sec] since BAT Trigger Time
  TAM[0-3]:        327.67 237.22 261.55 243.72
  AMPLIFIER:       2
  WAVEFORM:        134
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 07"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.20d {+18h 44m 48s}  -18.87d {-18d 52' 29"}
  MOON_DIST:        26.84 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.39 [deg] galactic lon,lat of the burst
  ECL_COORDS:      305.32, -5.97 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Coordinates.  
  COMMENTS:        The XRT position is 0.28 arcmin from the BAT position.  
  COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
  COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
  COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:24:04 UT
  NOTICE_TYPE:     Swift-XRT Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  GRB_RA:          309.2749d {+20h 37m 05.9s} (J2000),
                   309.4731d {+20h 37m 53.5s} (current),
                   308.5342d {+20h 34m 08.2s} (1950)
  GRB_DEC:         -24.7244d {-24d 43' 27.8"} (J2000),
                   -24.6771d {-24d 40' 37.4"} (current),
                   -24.8992d {-24d 53' 57.2"} (1950)
  GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       82 [cnts]
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51795.44 SOD {14:23:15.44} UT,   105.2 [sec] since BAT Trigger Time
  CENTROID_X:      316.10,  raw= 316  [pixels]
  CENTROID_Y:      309.87,  raw= 310  [pixels]
  ROLL:            78.91 [deg]
  GAIN:            2
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   27.99
  GRB_POS_XRT_Z:   29.23
  IMAGE_URL:       sw00556753000msxps_rw.img
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 07"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.20d {+18h 44m 49s}  -18.87d {-18d 52' 28"}
  MOON_DIST:        26.83 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.39 [deg] galactic lon,lat of the burst
  ECL_COORDS:      305.32, -5.97 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Image.  
  COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
  COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
  COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:24:10 UT
  NOTICE_TYPE:     Swift-XRT Processed Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  GRB_RA:          309.2749d {+20h 37m 05.9s} (J2000),
                   309.4731d {+20h 37m 53.5s} (current),
                   308.5342d {+20h 34m 08.2s} (1950)
  GRB_DEC:         -24.7244d {-24d 43' 27.8"} (J2000),
                   -24.6771d {-24d 40' 37.4"} (current),
                   -24.8992d {-24d 53' 57.2"} (1950)
  GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       82 [cnts]
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51795.44 SOD {14:23:15.44} UT,   105.2 [sec] since BAT Trigger Time
  CENTROID_X:      316.10,  raw= 316  [pixels]
  CENTROID_Y:      309.87,  raw= 310  [pixels]
  ROLL:            78.91 [deg]
  GAIN:            2
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   27.99
  GRB_POS_XRT_Z:   29.23
  IMAGE_URL:       sw00556753000msxps_rw.img
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 07"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.20d {+18h 44m 49s}  -18.87d {-18d 52' 28"}
  MOON_DIST:        26.83 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.39 [deg] galactic lon,lat of the burst
  ECL_COORDS:      305.32, -5.97 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Processed Image.  
  COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
  COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
  COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:25:27 UT
  NOTICE_TYPE:     Swift-BAT GRB Lightcurve
  TRIGGER_NUM:     556753,   Seg_Num: 0
  GRB_RA:          309.279d {+20h 37m 07s} (J2000),
                   309.477d {+20h 37m 54s} (current),
                   308.538d {+20h 34m 09s} (1950)
  GRB_DEC:         -24.728d {-24d 43' 39"} (J2000),
                   -24.680d {-24d 40' 49"} (current),
                   -24.903d {-24d 54' 09"} (1950)
  GRB_DATE:        16439 TJD;   147 DOY;   13/05/27
  GRB_TIME:        51690.19 SOD {14:21:30.19} UT
  TRIGGER_INDEX:   155
  GRB_PHI:         155.84 [deg]
  GRB_THETA:        48.75 [deg]
  DELTA_TIME:      0.00 [sec]
  TRIGGER_DUR:     1.024 [sec] 
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     255.99 [sigma]
  IMAGE_SIGNIF:    13.89 [sigma]
  LC_URL:          sw00556753000msb.lc
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 07"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.22d {+18h 44m 52s}  -18.87d {-18d 52' 21"}
  MOON_DIST:        26.82 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.40 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      305.32, -5.98 [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 = 184.85,-20.31 [deg].  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:26:19 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.729d {-24d 43' 45"} (J2000)
  POINT_ROLL:      78.908d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51803.49 SOD {14:23:23.49} UT,   113.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        2.600
  N_STARS:         119
  X_OFFSET:        424 [pixels]
  Y_OFFSET:        528 [pixels]
  X_MAX:           1383 [pixels]
  Y_MAX:           1487 [pixels]
  DET_THRESH:      13
  PHOTO_THRESH:    7
  SL_URL:          sw00556753000msufc0113.fits
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 08"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.23d {+18h 44m 55s}  -18.87d {-18d 52' 17"}
  MOON_DIST:        26.82 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:26:48 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.729d {-24d 43' 45"} (J2000)
  POINT_ROLL:      78.908d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51803.49 SOD {14:23:23.49} UT,   113.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        2.600
  N_STARS:         119
  X_OFFSET:        424 [pixels]
  Y_OFFSET:        528 [pixels]
  X_MAX:           1383 [pixels]
  Y_MAX:           1487 [pixels]
  DET_THRESH:      13
  PHOTO_THRESH:    7
  SL_URL:          sw00556753000msufc0113.fits
  SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 08"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.23d {+18h 44m 56s}  -18.87d {-18d 52' 15"}
  MOON_DIST:        26.82 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:27:53 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.729d {-24d 43' 45"} (J2000)
  ROLL:            78.908d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51803.49 SOD {14:23:23.49} UT,   113.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     391357414
  X_OFFSET:        718 [pixels]
  Y_OFFSET:        839 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       878
  Y_GRB_POS:       999
  BINNING_INDEX:   1
  IM_URL:          sw00556753000msuni0124.fits
  SUN_POSTN:        64.60d {+04h 18m 25s}  +21.39d {+21d 23' 08"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.24d {+18h 44m 59s}  -18.87d {-18d 52' 09"}
  MOON_DIST:        26.81 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [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).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:28:14 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.729d {-24d 43' 45"} (J2000)
  ROLL:            78.908d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  51803.49 SOD {14:23:23.49} UT,   113.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     391357414
  X_OFFSET:        718 [pixels]
  Y_OFFSET:        839 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       878
  Y_GRB_POS:       999
  BINNING_INDEX:   1
  IM_URL:          sw00556753000msuni0124.fits
  SUN_POSTN:        64.60d {+04h 18m 25s}  +21.39d {+21d 23' 09"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.25d {+18h 45m 00s}  -18.87d {-18d 52' 08"}
  MOON_DIST:        26.80 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [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.  
  

  
• GCN Circular #14703
  B.P. Gompertz (U Leicester), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), M. M. Chester (PSU), N. Gehrels (NASA/GSFC), J. A. Kennea (PSU), A. Y. Lien (NASA/GSFC/ORAU), F. E. Marshall (NASA/GSFC), C. J. Mountford (U Leicester), C. Pagani (U Leicester), D. M. Palmer (LANL) and M. H. Siegel (PSU) report on behalf of the Swift Team:
  At 14:21:30 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130527A (trigger=556753). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 309.279, -24.728 which is

     RA(J2000) = 20h 37m 07s
     Dec(J2000) = -24d 43' 39"
  

  with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex peak structure with a duration of at least 20 sec. The peak count rate was ~25000 counts/sec (15-350 keV), at ~0 sec after the trigger.
  The XRT began observing the field at 14:23:15.4 UT, 105.2 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 309.2749, -24.7244 which is equivalent to:

     RA(J2000)  = +20h 37m 5.98s
     Dec(J2000) = -24d 43' 27.8"
  

  with an uncertainty of 5.0 arcseconds (radius, 90% containment). This location is 18 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.
  The initial flux in the 2.5 s image was 2.88e-09 erg cm^-2 s^-1 (0.2-10 keV).
  UVOT took a finding chart exposure of 150 seconds with the White filter starting 113 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.04.
  Burst Advocate for this burst is B.P. Gompertz (bpg6 AT le.ac.uk). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:34:52 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.732d {-24d 43' 56"} (J2000)
  POINT_ROLL:      78.910d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52015.48 SOD {14:26:55.48} UT,   325.3 [sec] since BAT Trigger Time
  FILTER:          7, U
  BKG_MEAN:        0.763
  N_STARS:         75
  X_OFFSET:        398 [pixels]
  Y_OFFSET:        519 [pixels]
  X_MAX:           1357 [pixels]
  Y_MAX:           1478 [pixels]
  DET_THRESH:      8
  PHOTO_THRESH:    3
  SL_URL:          sw00556753000msufc0325.fits
  SUN_POSTN:        64.61d {+04h 18m 26s}  +21.39d {+21d 23' 11"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.32d {+18h 45m 17s}  -18.86d {-18d 51' 35"}
  MOON_DIST:        26.74 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.91,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:35:08 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.732d {-24d 43' 56"} (J2000)
  POINT_ROLL:      78.910d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52015.48 SOD {14:26:55.48} UT,   325.3 [sec] since BAT Trigger Time
  FILTER:          7, U
  BKG_MEAN:        0.763
  N_STARS:         75
  X_OFFSET:        398 [pixels]
  Y_OFFSET:        519 [pixels]
  X_MAX:           1357 [pixels]
  Y_MAX:           1478 [pixels]
  DET_THRESH:      8
  PHOTO_THRESH:    3
  SL_URL:          sw00556753000msufc0325.fits
  SUN_POSTN:        64.61d {+04h 18m 26s}  +21.39d {+21d 23' 11"}
  SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.32d {+18h 45m 18s}  -18.86d {-18d 51' 33"}
  MOON_DIST:        26.74 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.91,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:36:24 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.732d {-24d 43' 56"} (J2000)
  ROLL:            78.910d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52015.48 SOD {14:26:55.48} UT,   325.3 [sec] since BAT Trigger Time
  FILTER:          7, U
  EXPOSURE_ID:     391357626
  X_OFFSET:        718 [pixels]
  Y_OFFSET:        839 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       878
  Y_GRB_POS:       999
  BINNING_INDEX:   1
  IM_URL:          sw00556753000msuni0336.fits
  SUN_POSTN:        64.61d {+04h 18m 26s}  +21.39d {+21d 23' 12"}
  SUN_DIST:        120.77 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.34d {+18h 45m 21s}  -18.86d {-18d 51' 27"}
  MOON_DIST:        26.73 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.91,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [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).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:36:31 UT
  NOTICE_TYPE:     Swift-XRT Position UPDATE
  TRIGGER_NUM:     556753,   Seg_Num: 0
  GRB_RA:          309.2767d {+20h 37m 06.40s} (J2000),
                   309.4749d {+20h 37m 53.98s} (current),
                   308.5360d {+20h 34m 08.64s} (1950)
  GRB_DEC:         -24.7250d {-24d 43' 30.0"} (J2000),
                   -24.6777d {-24d 40' 39.5"} (current),
                   -24.8999d {-24d 53' 59.4"} (1950)
  GRB_ERROR:       2.7 [arcsec radius, statistical plus systematic, 90% containment]
  GRB_INTEN:       1.00e-10 [erg/cm2/sec]
  GRB_SIGNIF:      10.00 [sigma]
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52007.00 SOD {14:26:47.00} UT,   316.8 [sec] since BAT Trigger Time
  TAM[0-3]:        100.00 100.00 100.00 100.00
  AMPLIFIER:       1
  WAVEFORM:        31
  SUN_POSTN:        64.61d {+04h 18m 26s}  +21.39d {+21d 23' 12"}
  SUN_DIST:        120.77 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.34d {+18h 45m 21s}  -18.86d {-18d 51' 27"}
  MOON_DIST:        26.72 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.92,-33.39 [deg] galactic lon,lat of the burst
  ECL_COORDS:      305.32, -5.97 [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%.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:36:36 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.732d {-24d 43' 56"} (J2000)
  ROLL:            78.910d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52015.48 SOD {14:26:55.48} UT,   325.3 [sec] since BAT Trigger Time
  FILTER:          7, U
  EXPOSURE_ID:     391357626
  X_OFFSET:        718 [pixels]
  Y_OFFSET:        839 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       878
  Y_GRB_POS:       999
  BINNING_INDEX:   1
  IM_URL:          sw00556753000msuni0336.fits
  SUN_POSTN:        64.61d {+04h 18m 26s}  +21.39d {+21d 23' 12"}
  SUN_DIST:        120.77 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.34d {+18h 45m 21s}  -18.86d {-18d 51' 26"}
  MOON_DIST:        26.73 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.91,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [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.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:44:06 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.733d {-24d 43' 56"} (J2000)
  ROLL:            78.910d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52569.57 SOD {14:36:09.57} UT,   879.4 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     391358180
  X_OFFSET:        717 [pixels]
  Y_OFFSET:        838 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       877
  Y_GRB_POS:       998
  BINNING_INDEX:   1
  IM_URL:          sw00556753000msuni0890.fits
  SUN_POSTN:        64.61d {+04h 18m 27s}  +21.39d {+21d 23' 15"}
  SUN_DIST:        120.77 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.42d {+18h 45m 41s}  -18.85d {-18d 50' 49"}
  MOON_DIST:        26.66 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.91,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [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).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 27 May 13 14:44:27 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     556753,   Seg_Num: 0
  POINT_RA:        309.285d {+20h 37m 08s} (J2000)
  POINT_DEC:       -24.733d {-24d 43' 56"} (J2000)
  ROLL:            78.910d
  IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
  IMG_START_TIME:  52569.57 SOD {14:36:09.57} UT,   879.4 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     391358180
  X_OFFSET:        717 [pixels]
  Y_OFFSET:        838 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       877
  Y_GRB_POS:       998
  BINNING_INDEX:   1
  IM_URL:          sw00556753000msuni0890.fits
  SUN_POSTN:        64.61d {+04h 18m 27s}  +21.39d {+21d 23' 15"}
  SUN_DIST:        120.77 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
  MOON_POSTN:      281.42d {+18h 45m 42s}  -18.85d {-18d 50' 47"}
  MOON_DIST:        26.65 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:       19.91,-33.40 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      305.33, -5.98 [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.  
  

  
• GCN Circular #14704
  P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
  Using promptly downlinked XRT event data for GRB 130527A, we find an enhanced XRT position of the afterglow: RA, Dec: 309.2762, -24.7246 which is equivalent to:

     RA (J2000)  = 20 37 06.28
     Dec (J2000) = -24 43 28.6
  

  with an uncertainty of 2.0 arcseconds (radius, 90% confidence). Analysis of the promptly available data is online at http://www.swift.ac.uk/sper/556753.
  Position enhancement is is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177).
  This circular is an official product of the Swift-XRT team.
• GCN Circular #14705
  P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team.
  Using 872 s of XRT Photon Counting mode data and 1 UVOT images for GRB 130527A, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 309.27631, -24.72515 which is equivalent to:

  RA (J2000): 20h 37m 6.32s
  Dec (J2000): -24d 43' 30.6"
  

  with an uncertainty of 1.8 arcsec (radius, 90% confidence).
  This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177).
  This circular was automatically generated, and is an official product of the Swift-XRT team.
• GCN Circular #14706
  A. J. Castro-Tirado (IAA-CSIC), J. Gorosabel (IAA-CSIC, UPV-EHU), A. Guijarro (CAHA) and M. Jel=EDnek (IAA-CSIC), on behalf of a larger collaboration, report:
  "Following the detection of GRB 130527A by Swift (Gompertz et al. GCNC 14703), follow-up observations have been conducted with the 0.6m TELMA telescope (+ COLORES, i'-band) at the BOOTES-2 station in M=E1laga and wi= th the 3.5m CAHA (+ Omega2000, zYJHK) at the German-Spanish Calar Alto Observatory. Data was gathered starting at 2:30 UT (i.e. ~12.1 hr post burst), at high airmass and with the moon only 11 degrees away. At the position of the X-ray afterglow (Evans et al. GCNC 14705), no optical/nIR source is detected down to J ~ 20. Further data analysis is ongoing."
• GCN Circular #14707
  V. Mangano (INAF-IASFPA), A. Melandri (INAF-OAB), B. Sbarufatti (INAF-OAB/PSU), J.A. Kennea (PSU), M.C. Stroh (PSU), D.N. Burrows (PSU), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), C. Pagani (U. Leicester) and B.P. Gompertz report on behalf of the Swift-XRT team:
  We have analysed 5.9 ks of XRT data for GRB 130527A (Gompertz et al. GCN Circ. 14703), from 94 s to 18.3 ks after the BAT trigger. The data comprise 203 s in Windowed Timing (WT) mode (the first 10 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Evans et al. (GCN. Circ 14704).
  The late-time light curve (from T0+4.9 ks) can be modelled with a power-law decay with a decay index of alpha=1.15 (+0.24, -0.23).
  A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.70 (+/-0.09). The best-fitting absorption column is 2.4 (+/-0.3) x 10^21 cm^-2, in excess of the Galactic value of 3.7 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 1.67 (+0.16, -0.15) and a best-fitting absorption column of 1.5 (+/-0.5) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.5 x 10^-11 (5.5 x 10^-11) erg cm^-2 count^-1.
  A summary of the PC-mode spectrum is thus:

  Total column:	     1.5 (+/-0.5) x 10^21 cm^-2
  Galactic foreground: 3.7 x 10^20 cm^-2
  Excess significance: 3.9 sigma
  Photon index:	     1.67 (+0.16, -0.15)
  

  If the light curve continues to decay with a power-law decay index of 1.15, the count rate at T+24 hours will be 5.7 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 2.6 x 10^-13 (3.1 x 10^-13) erg cm^-2 s^-1.
  The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00556753.
  This circular is an official product of the Swift-XRT team.
• GCN Circular #14708
  W. H. Baumgartner (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), B.P. Gompertz (U Leicester), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), G. Sato (ISAS), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team):
  Using the data set from T-700 to T+302 sec from recent telemetry downlinks, we report further analysis of BAT GRB 130527A (trigger #556753) (Gompertz, et al., GCN Circ. 14703). The BAT ground-calculated position is RA, Dec = 309.282, -24.726 deg, which is

     RA(J2000)  =  20h 37m 07.6s 
     Dec(J2000) = -24d 43' 35.1" 
  

  with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 10%.
  The mask-weighted light curve shows many overlapping peakst starting at ~T-10 sec, peaking at ~T+1 sec, and ending at ~T+170 sec. T90 (15-350 keV) is 44 +- 16 sec (estimated error including systematics).
  The time-averaged spectrum from T-2.9 to T+90.7 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.25 +- 0.06. The fluence in the 15-150 keV band is 1.2 +- 0.04 x 10^-5 erg/cm2. The 1-sec peak photon flux measured from T+0.06 sec in the 15-150 keV band is 20.1 +- 1.4 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
  The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/556753/BA/
• GCN Circular #14709
  Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), Willia= m H. Lee (UNAM), Michael G. Richer (UNAM), Chris Klein (UCB), Ori Fox (UCB) J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UCSC), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC)= , Jos=E9 A. de Diego (UNAM), Leonid Georgiev (UNAM), Jes=FAs Gonz=E1lez (UN= AM), Carlos Rom=E1n-Z=FA=F1iga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley= (GSFC) report:
  We observed the field of GRB 130527A (Gompertz, et al., GCN 14703) with t= he Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astron=F3mico Nacional = on Sierra San Pedro M=E1rtir from 2013/05 28.35 to 2013/05 28.47 UTC (18.13 = to 20.91 hours after the BAT trigger), obtaining a total of 1.97 hours exposure in the r' and i' bands and 0.73 hours exposure in the Z, Y, J, and H bands.
  For a source within the Swift-XRT error circle (Evans, et al., GCN 14705), in comparison with USNO-B1 and 2MASS, we obtain the following upper limits (3-sigma):

    r'    > 21.9
    i'    > 22.3
    Z     > 20.7
    Y     > 20.6
    J     > 20.6
    H     > 20.3
  

  These magnitudes are in the AB system and not corrected for Galactic extinction in the direction of the GRB.
  We thank the staff of the Observatorio Astron=F3mico Nacional in San Pedr= o M=E1rtir.
• GCN Circular #14710
  Z. Cano (U. Iceland), D. Malesani (DARK), N. R. Tanvir (U. Leicester), D. Xu (DARK/NBI), T. Kangas (U. Turku), and J. Kajava (NOT) report on behalf of a larger collaboration:
  On 2013 May 28, beginning at 03:55 UT, we observed the field of GRB 130527A (Gompertz et al., GCN 14703) with the Nordic Optical Telescope (NOT) equipped with the ALFOSC instrument using the z filter, for a total exposure time of 40 minutes. Observations were carried out at moderate airmass, with the bright Moon only 18 deg away, at a mean epoch of May 28.179 UT (13.94 hr after the GRB).
  Inside the refined XRT error circle (Evans et al., GCN 14705; see also http://www.swift.ac.uk/xrt_positions/) we do not detect any bright source, but there is a faint, apparently extended object with magnitude z = 21.4 +- 0.2. The limiting magnitude for an isolated object in our coadded image is z = 22.1. Calibration has been derived using two stars in the USNO B1 catalog (0652-0853265 and 0652-0853288), and converting their R2 and I magnitudes into z using the transformation equations from Jordi et al. (2006, A&A, 460, 339). The source could be the GRB host.
  A snapshot showing our coadded image can be found at the URL http://www.astro.ku.dk/~malesani/GRB/130527A/GRB130527A_finder_NOT.jpg
  
• GCN Circular #14715
  M. M. Chester (PSU) and B. P. Gompertz (U Leicester) report on behalf of the Swift/UVOT team:
  The Swift/UVOT began settled observations of the field of GRB 130527A 113 s after the BAT trigger (Gompertz et al., GCN Circ. 14703). No optical afterglow consistent with the XRT position (Evans et al. GCN Circ. 14705) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposures and subsequent exposures are:

  Filter         T_start(s)   T_stop(s)      Exp(s)         Mag
  
  white_FC           113          263          147         >21.2
  white              113         1547          392         >21.1
  white             4949        12020          623         >21.8
  
  v                  655         1596          117         >18.7
  v                 5359         5559          197         >19.5
  
  b                  581         1693          114         >20.2
  b                 6179        11579          906         >21.3
  
  u_FC               325          575          246         >20.3
  u                  325         1671          343         >20.2
  u                 5974        18261         1072         >21.1
  
  w1                 704         1646           97         >19.8
  w1                5769        17356         1082         >21.1
  
  m2                 680         1621          117         >20.0
  m2                5564         5764          197         >19.8
  
  w2                 630         1572          117         >20.6
  w2                5154         5354          197         >20.2
  

  The 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).
• GCN Circular #14720
  S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report:
  The long-duration intense hard-spectrum GRB 130527A (Swift-BAT trigger 556753: Gompertz et al., GCN 14703;) Baumgartner et al., GCN 14708) triggered Konus-Wind at T0=3D51688.300s UT (14:21:28.300).
  The light curve shows a bright hard multi-peaked emission complex from ~T0 s to ~T0+10s, followed by the weaker and softer emission out to ~T0+40s.
  The emission is seen up to 10 MeV.
  The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB130527_T51688/
  As observed by Konus-Wind, the burst had a fluence of (1.1 =B1 0.05)x10-4 erg/cm2, and a 64-ms peak flux, measured from T0+3.200s, of (5.0 =B1 0.3)x10-5 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
  The time-integrated spectrum (measured from T0 to T0+38.656 s) is best fit in the 50 keV - 15 MeV range by the cutoff power law model with the following parameters: the photon index alpha =3D -1.04 =B1 0.04, the peak energy Ep =3D 1380 =B1 120 keV, chi2 =3D 96/90 dof.
  The spectrum at the maximum count rate (measured from T0+0.256 to T0+5.888 s) is best fit in the 50 keV - 15 MeV range by the GRB (Band) function with the following model parameters: by the cutoff power law model with the following parameters: the photon index alpha =3D -0.97 =B1 0.04, the peak energy Ep =3D 1429 =B1 84 keV, chi2 =3D 72/79 dof.
  All the quoted results are preliminary.
• GCN Circular #14727
  H. Ueno, M. Tashiro, Y. Terada, T. Yasuda, Y. Ishida, S. Sugimoto (Saitama U.), M. Ohno, K. Takaki, T. Kawano, R. Nakamura, S. Furui, Y. Fukazawa (Hiroshima U.), M. Yamauchi, N. Ohmori, M. Akiyama (Univ. of Miyazaki), K. Yamaoka (Nagoya U.), S. Sugita (Ehime U.), Y. E. Nakagawa, M. Kokubun, T. Takahashi (ISAS/JAXA), W. Iwakiri(RIKEN), Y. Hanabata (ICRR), Y. Urata (NCU), K. Nakazawa, K. Makishima (Univ. of Tokyo) on behalf of the Suzaku WAM team, report:
  The bright, long GRB 130527A (Swift-BAT detection: W. H. Baumgartner, et al. , GCN 14708) triggered the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at UT 14:21:27.030(=T0).
  The observed light curve shows a multi-peaked structure starting at T0-0.5 s, ending at T0+13 s with a duration (T90) of about 7.4 seconds. The fluence in 100 - 1000 keV was 5.26 (-0.36, +0.39) *10^-5 erg/cm^2. The 1-s peak flux measured from T0+4.5 s was 20.26 (-0.92, +1.12) photons/cm^2/s in the same energy range.
  Preliminary result shows that the time-averaged spectrum from T0-1 s to T0+13 s is well fitted by a GRB Band model as follows. the low-energy photon index alpha: -0.87 (-0.13, +0.10), the high-energy photon index beta: -2.68 (-0.36, +0.14), and the peak energy Epeak: 1426 (-123, +221) keV, (chi^2/d.o.f = 36.3/28).
  Due to the brightness of this burst, a 3% systematic error was added for low energy channels. All the quoted errors are at statistical 90% confidence level.
  The light curves for this burst are available at: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html
• GCN Report 447.1
  GCN_Report 447.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_447_1.pdf by B.P. Gompertz at U.Leicester titled: "Swift Observations of GRB 130527A"