Gamma-ray Burst 130529A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:16:43 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.259d {+01h 37m 02s} (J2000),
                  24.367d {+01h 37m 28s} (current),
                  23.854d {+01h 35m 25s} (1950)
GRB_DEC:         -64.138d {-64d 08' 17"} (J2000),
                 -64.070d {-64d 04' 12"} (current),
                 -64.393d {-64d 23' 32"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1157 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        16441 TJD;   149 DOY;   13/05/29
GRB_TIME:        40525.38 SOD {11:15:25.38} UT
GRB_PHI:         -127.06 [deg]
GRB_THETA:         9.48 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.22 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -3  +0  +0  +3  +0 
SUN_POSTN:        66.50d {+04h 26m 01s}  +21.68d {+21d 40' 50"}
SUN_DIST:         91.77 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.17d {+20h 36m 41s}  -13.24d {-13d 14' 33"}
MOON_DIST:        71.65 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.83,-52.27 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      334.05,-63.75 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 241.68,-17.16 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:17:54 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.2798d {+01h 37m 07.15s} (J2000),
                  24.3882d {+01h 37m 33.16s} (current),
                  23.8750d {+01h 35m 30.00s} (1950)
GRB_DEC:         -64.1493d {-64d 08' 57.4"} (J2000),
                 -64.0813d {-64d 04' 52.6"} (current),
                 -64.4035d {-64d 24' 12.5"} (1950)
GRB_ERROR:       5.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.24e-09 [erg/cm2/sec]
GRB_SIGNIF:      6.48 [sigma]
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40638.03 SOD {11:17:18.03} UT,   112.7 [sec] since BAT Trigger Time
TAM[0-3]:        327.68 237.23 261.67 243.62
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        66.50d {+04h 26m 01s}  +21.68d {+21d 40' 51"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.18d {+20h 36m 44s}  -13.24d {-13d 14' 21"}
MOON_DIST:        71.66 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.82,-52.25 [deg] galactic lon,lat of the burst
ECL_COORDS:      334.04,-63.77 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.85 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:18:10 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.2798d {+01h 37m 07.1s} (J2000),
                  24.3882d {+01h 37m 33.1s} (current),
                  23.8750d {+01h 35m 30.0s} (1950)
GRB_DEC:         -64.1493d {-64d 08' 57.4"} (J2000),
                 -64.0813d {-64d 04' 52.6"} (current),
                 -64.4035d {-64d 24' 12.5"} (1950)
GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       42 [cnts]
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40638.03 SOD {11:17:18.03} UT,   112.7 [sec] since BAT Trigger Time
CENTROID_X:      294.26,  raw= 294  [pixels]
CENTROID_Y:      274.86,  raw= 275  [pixels]
ROLL:            38.71 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -54.54
GRB_POS_XRT_Z:   -22.25
IMAGE_URL:       sw00556930000msxps_rw.img
SUN_POSTN:        66.50d {+04h 26m 01s}  +21.68d {+21d 40' 51"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.19d {+20h 36m 45s}  -13.24d {-13d 14' 19"}
MOON_DIST:        71.66 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.82,-52.25 [deg] galactic lon,lat of the burst
ECL_COORDS:      334.04,-63.77 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:18:03 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.2798d {+01h 37m 07.1s} (J2000),
                  24.3882d {+01h 37m 33.1s} (current),
                  23.8750d {+01h 35m 30.0s} (1950)
GRB_DEC:         -64.1493d {-64d 08' 57.4"} (J2000),
                 -64.0813d {-64d 04' 52.6"} (current),
                 -64.4035d {-64d 24' 12.5"} (1950)
GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       42 [cnts]
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40638.03 SOD {11:17:18.03} UT,   112.7 [sec] since BAT Trigger Time
CENTROID_X:      294.26,  raw= 294  [pixels]
CENTROID_Y:      274.86,  raw= 275  [pixels]
ROLL:            38.71 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -54.54
GRB_POS_XRT_Z:   -22.25
IMAGE_URL:       sw00556930000msxps_rw.img
SUN_POSTN:        66.50d {+04h 26m 01s}  +21.68d {+21d 40' 51"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.18d {+20h 36m 44s}  -13.24d {-13d 14' 20"}
MOON_DIST:        71.66 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.82,-52.25 [deg] galactic lon,lat of the burst
ECL_COORDS:      334.04,-63.77 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:19:30 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.259d {+01h 37m 02s} (J2000),
                  24.367d {+01h 37m 28s} (current),
                  23.854d {+01h 35m 25s} (1950)
GRB_DEC:         -64.138d {-64d 08' 17"} (J2000),
                 -64.070d {-64d 04' 12"} (current),
                 -64.393d {-64d 23' 32"} (1950)
GRB_DATE:        16441 TJD;   149 DOY;   13/05/29
GRB_TIME:        40525.38 SOD {11:15:25.38} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -127.06 [deg]
GRB_THETA:         9.48 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.22 [sigma]
LC_URL:          sw00556930000msb.lc
SUN_POSTN:        66.50d {+04h 26m 01s}  +21.68d {+21d 40' 51"}
SUN_DIST:         91.77 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.20d {+20h 36m 48s}  -13.24d {-13d 14' 06"}
MOON_DIST:        71.65 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.83,-52.27 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      334.05,-63.75 [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 an image 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 = 241.68,-17.16 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:21:34 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.243d {+01h 36m 58s} (J2000)
POINT_DEC:       -64.144d {-64d 08' 36"} (J2000)
ROLL:            38.707d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40648.00 SOD {11:17:28.00} UT,   122.6 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     391519058
X_OFFSET:        895 [pixels]
Y_OFFSET:        933 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1055
Y_GRB_POS:       1093
BINNING_INDEX:   1
IM_URL:          sw00556930000msuni0133.fits
SUN_POSTN:        66.51d {+04h 26m 01s}  +21.68d {+21d 40' 52"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.22d {+20h 36m 53s}  -13.23d {-13d 13' 46"}
MOON_DIST:        71.64 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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:     Wed 29 May 13 11:21:51 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.243d {+01h 36m 58s} (J2000)
POINT_DEC:       -64.144d {-64d 08' 36"} (J2000)
ROLL:            38.707d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40648.00 SOD {11:17:28.00} UT,   122.6 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     391519058
X_OFFSET:        895 [pixels]
Y_OFFSET:        933 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1055
Y_GRB_POS:       1093
BINNING_INDEX:   1
IM_URL:          sw00556930000msuni0133.fits
SUN_POSTN:        66.51d {+04h 26m 02s}  +21.68d {+21d 40' 52"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.22d {+20h 36m 53s}  -13.23d {-13d 13' 43"}
MOON_DIST:        71.64 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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 #14717
V. D'Elia (ASDC), S. D. Barthelmy (GSFC), J. A. Kennea (PSU), C. Pagani (U Leicester) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 11:15:25 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130529A (trigger=556930). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 24.259, -64.138, which is
```
   RA(J2000)  =  01h 37m 02s
   Dec(J2000) = -64d 08' 17"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). As is typical for image triggers, the real-time TDRSS lightcurve does not show anything significant.
The XRT began observing the field at 11:17:18.0 UT, 112.6 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 24.2798, -64.1493 which is equivalent to:
```
   RA(J2000)  = +01h 37m 7.15s
   Dec(J2000) = -64d 08' 57.5"
```
with an uncertainty of 5.4 arcseconds (radius, 90% containment). This location is 52 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 1.24e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 122 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. Data from the list of sources generated on-board are not available at this time. No correction has been made for the expected extinction corresponding to E(B-V) of 0.02.
Burst Advocate for this burst is V. D'Elia (delia AT asdc.asi.it). 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:     Wed 29 May 13 11:27:11 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 58s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 48"} (J2000)
POINT_ROLL:      38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40805.95 SOD {11:20:05.95} UT,   280.6 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.357
N_STARS:         36
X_OFFSET:        575 [pixels]
Y_OFFSET:        613 [pixels]
X_MAX:           1534 [pixels]
Y_MAX:           1572 [pixels]
DET_THRESH:      6
PHOTO_THRESH:    2
SL_URL:          sw00556930000msufc0280.fits
SUN_POSTN:        66.51d {+04h 26m 02s}  +21.68d {+21d 40' 54"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.27d {+20h 37m 06s}  -13.21d {-13d 12' 52"}
MOON_DIST:        71.63 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:27:28 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 58s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 48"} (J2000)
POINT_ROLL:      38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40805.95 SOD {11:20:05.95} UT,   280.6 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.357
N_STARS:         36
X_OFFSET:        575 [pixels]
Y_OFFSET:        613 [pixels]
X_MAX:           1534 [pixels]
Y_MAX:           1572 [pixels]
DET_THRESH:      6
PHOTO_THRESH:    2
SL_URL:          sw00556930000msufc0280.fits
SUN_POSTN:        66.51d {+04h 26m 02s}  +21.68d {+21d 40' 54"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.28d {+20h 37m 07s}  -13.21d {-13d 12' 49"}
MOON_DIST:        71.63 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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:     Wed 29 May 13 11:28:28 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 58s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 48"} (J2000)
ROLL:            38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40805.95 SOD {11:20:05.95} UT,   280.6 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     391519216
X_OFFSET:        895 [pixels]
Y_OFFSET:        933 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1055
Y_GRB_POS:       1093
BINNING_INDEX:   1
IM_URL:          sw00556930000msuni0291.fits
SUN_POSTN:        66.51d {+04h 26m 03s}  +21.68d {+21d 40' 55"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.29d {+20h 37m 09s}  -13.21d {-13d 12' 39"}
MOON_DIST:        71.63 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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:     Wed 29 May 13 11:28:41 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 58s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 48"} (J2000)
ROLL:            38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40805.95 SOD {11:20:05.95} UT,   280.6 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     391519216
X_OFFSET:        895 [pixels]
Y_OFFSET:        933 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1055
Y_GRB_POS:       1093
BINNING_INDEX:   1
IM_URL:          sw00556930000msuni0291.fits
SUN_POSTN:        66.51d {+04h 26m 03s}  +21.68d {+21d 40' 55"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.29d {+20h 37m 09s}  -13.21d {-13d 12' 37"}
MOON_DIST:        71.63 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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:     Wed 29 May 13 11:34:37 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 59s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 49"} (J2000)
POINT_ROLL:      38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  41385.04 SOD {11:29:45.04} UT,   859.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.601
N_STARS:         90
X_OFFSET:        335 [pixels]
Y_OFFSET:        373 [pixels]
X_MAX:           1774 [pixels]
Y_MAX:           1812 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00556930000msufc0859.fits
SUN_POSTN:        66.52d {+04h 26m 04s}  +21.68d {+21d 40' 57"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.35d {+20h 37m 23s}  -13.19d {-13d 11' 40"}
MOON_DIST:        71.61 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:34:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 59s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 49"} (J2000)
POINT_ROLL:      38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  41385.04 SOD {11:29:45.04} UT,   859.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.601
N_STARS:         90
X_OFFSET:        335 [pixels]
Y_OFFSET:        373 [pixels]
X_MAX:           1774 [pixels]
Y_MAX:           1812 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00556930000msufc0859.fits
SUN_POSTN:        66.52d {+04h 26m 04s}  +21.68d {+21d 40' 57"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.35d {+20h 37m 24s}  -13.19d {-13d 11' 37"}
MOON_DIST:        71.61 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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:     Wed 29 May 13 11:35:13 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.2820d {+01h 37m 07.68s} (J2000),
                  24.3904d {+01h 37m 33.69s} (current),
                  23.8772d {+01h 35m 30.53s} (1950)
GRB_DEC:         -64.1474d {-64d 08' 50.6"} (J2000),
                 -64.0794d {-64d 04' 45.8"} (current),
                 -64.4016d {-64d 24' 05.6"} (1950)
GRB_ERROR:       2.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40940.00 SOD {11:22:20.00} UT,   414.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        66.52d {+04h 26m 04s}  +21.68d {+21d 40' 57"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.35d {+20h 37m 25s}  -13.19d {-13d 11' 34"}
MOON_DIST:        71.63 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.82,-52.26 [deg] galactic lon,lat of the burst
ECL_COORDS:      334.05,-63.76 [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 0.11% < P(seren) < 0.58%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:36:05 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 59s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 49"} (J2000)
ROLL:            38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  41385.04 SOD {11:29:45.04} UT,   859.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     391519795
X_OFFSET:        894 [pixels]
Y_OFFSET:        932 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1054
Y_GRB_POS:       1092
BINNING_INDEX:   1
IM_URL:          sw00556930000msuni0870.fits
SUN_POSTN:        66.52d {+04h 26m 04s}  +21.68d {+21d 40' 58"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.36d {+20h 37m 27s}  -13.19d {-13d 11' 26"}
MOON_DIST:        71.61 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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:     Wed 29 May 13 11:36:17 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     556930,   Seg_Num: 0
POINT_RA:         24.244d {+01h 36m 59s} (J2000)
POINT_DEC:       -64.147d {-64d 08' 49"} (J2000)
ROLL:            38.708d
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  41385.04 SOD {11:29:45.04} UT,   859.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     391519795
X_OFFSET:        894 [pixels]
Y_OFFSET:        932 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1054
Y_GRB_POS:       1092
BINNING_INDEX:   1
IM_URL:          sw00556930000msuni0870.fits
SUN_POSTN:        66.52d {+04h 26m 04s}  +21.68d {+21d 40' 58"}
SUN_DIST:         91.79 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.36d {+20h 37m 27s}  -13.19d {-13d 11' 24"}
MOON_DIST:        71.61 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.85,-52.26 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      334.03,-63.75 [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 #14719
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Using promptly downlinked XRT event data for GRB 130529A, we find an enhanced XRT position of the afterglow: RA, Dec: 24.2820, -64.1473 which is equivalent to:
```
   RA (J2000)  = 01 37 07.69
   Dec (J2000) = -64 08 50.2
```
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/556930.
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 #14723
J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
Using 7658 s of XRT Photon Counting mode data and 9 UVOT images for GRB 130529A, 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 = 24.28192, -64.14745 which is equivalent to:
```
RA (J2000): 01h 37m 7.66s
Dec (J2000): -64d 08' 50.8"
```
with an uncertainty of 1.4 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 #14724
B. Sbarufatti (INAF-OAB/PSU), D.N. Burrows (PSU), J.A. Kennea (PSU), M.C. Stroh (PSU), C. Pagani (U. Leicester), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), G. Stratta (ASDC), P. D'Avanzo (INAF-OAB) and V. D'Elia report on behalf of the Swift-XRT team:
We have analysed 8.6 ks of XRT data for GRB 130529A (D'Elia et al. GCN Circ. 14717), from 118 s to 19.2 ks after the BAT trigger. The data comprise 300 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Osborne et al. (GCN. Circ 14719).
The light curve can be modelled with an initial power-law decay with an index of alpha=1.67 (+/-0.04), followed by a break at T+1862 s to an alpha of 0.97 (+0.08, -0.14).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.36 (+0.08, -0.07). The best-fitting absorption column is 6.8 (+2.2, -2.0) x 10^20 cm^-2, in excess of the Galactic value of 2.7 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 1.32 (+0.15, -0.14) and a best-fitting absorption column of 6.9 (+4.5, -4.0) x 10^20 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 5.3 x 10^-11 (5.7 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     6.9 (+4.5, -4.0) x 10^20 cm^-2
Galactic foreground: 2.7 x 10^20 cm^-2
Excess significance: 1.7 sigma
Photon index:	     1.32 (+0.15, -0.14)
```
If the light curve continues to decay with a power-law decay index of 0.97, the count rate at T+24 hours will be 8.1 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 4.3 x 10^-13 (4.7 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/00556930.
This circular is an official product of the Swift-XRT team.
GCN Circular #14726
H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), V. D'Elia (ASDC), E. E. Fenimore (LANL), N. Gehrels (GSFC), 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-239 to T+464 sec from recent telemetry downlinks, we report further analysis of BAT GRB 130529A (trigger #556930) (D'Elia, et al., GCN Circ. 14717). The BAT ground-calculated position is RA, Dec = 24.274, -64.143 deg, which is
```
   RA(J2000)  =  01h 37m 05.7s 
   Dec(J2000) = -64d 08' 34.8" 
```
with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%.
The mask-weighted light curve shows the burst starting at ~T-20 sec, peaking at about T+80 sec, and ending at ~T+260 sec. T90 (15-350 keV) is 128 +- 35 sec (estimated error including systematics).
The time-averaged spectrum from T-15.02 to T+150.62 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.56 +- 0.17. The fluence in the 15-150 keV band is 1.4 +- 0.2 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+64.28 sec in the 15-150 keV band is 0.5 +- 0.1 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/556930/BA/
GCN Circular #14728
S. R. Oates (MSSL-UCL) and V. D'Elia (ASDC) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130529A 123 s after the BAT trigger (D'Elia et al., GCN Circ. 14717). No optical afterglow consistent with the XRT position (Osborne et al. GCN Circ. 14723) 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) exposure and subsequent exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC           123          272          147         >21.6
u_FC               281          530          246         >20.8
white              123         7633          824         >22.1
v                  611        12979         1237         >20.8
b                  536        19245         1031         >21.1
u                  281        18726         1641         >21.5
w1                 660        17812         1415         >21.6
m2                 635        13481          822         >21.0
w2                 587        12064         1275         >21.8
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.02 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #14730
K. Varela (MPE Garching), S. Klose, A. Nicuesa Guelbenzu (both TLS Tautenburg), and J. Greiner (MPE Garching) report on behalf of the GROND team:
We observed the field GRB 130529A (Swift trigger 556930; D' Elia et al., GCN 14717) simultaneously in g'r'i'z'JHKs with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m MPG/ESO telescope at La Silla Observatory (Chile).
Observations started at 07:10 UT on May 30, about 20 hours after the trigger at a mean seeing of 1.7 arcsec and a mean airmass of 2. Inside the enhanced 1".4 XRT error circle (Osborne et al., GCN 14723), we do not detect any source. Based on an observation with 150 min integration time in g'r'i'z' and 124 min integration time in JHKs, we estimate preliminary 3-sigma upper limits (all in the AB system) of
```
g' > 24.3,
r' > 24.6,
J  > 21.8,
H  > 21.1.
```
We note that the field is rich in galaxies. Within 10 arcsec around the XRT error circle are at least three objects (also visible on DSS2), with the most extended one an edge-on galaxy about 6" in diameter. The bad seeing prevents at the moment a more detailed classification of the other objects.
Magnitudes are calibrated against GROND zero points (g'r'i'z') as well as 2MASS field stars (JHKs) and, as usual, are not corrected for Galactic extinction along the line of sight.
GCN Report 432.1
GCN_Report 432.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_432_1.pdf by V.DElia at ASDC titled: "Swift Observations of GRB 130529A"

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Jochen Greiner, last update: 30-May-2013 [Disclaimer]