Gamma-ray Burst 130722A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:19:47 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     563213,   Seg_Num: 0
GRB_RA:          260.670d {+17h 22m 41s} (J2000),
                 260.847d {+17h 23m 23s} (current),
                 260.015d {+17h 20m 04s} (1950)
GRB_DEC:          -2.979d {-02d 58' 44"} (J2000),
                  -2.991d {-02d 59' 28"} (current),
                  -2.932d {-02d 55' 56"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       8530 [cnts]    Image_Peak=258 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   265     E_range: 25-100 keV
BKG_INTEN:       86770 [cnts]
BKG_TIME:        29925.18 SOD {08:18:45.18} UT
BKG_DUR:         24 [sec]
GRB_DATE:        16495 TJD;   203 DOY;   13/07/22
GRB_TIME:        29959.22 SOD {08:19:19.22} UT
GRB_PHI:          -5.60 [deg]
GRB_THETA:        40.94 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     6.24 [sigma]
IMAGE_SIGNIF:    7.67 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  -2  +0  +0 +72  +0 
SUN_POSTN:       121.87d {+08h 07m 28s}  +20.21d {+20d 12' 44"}
SUN_DIST:        136.48 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.83d {+19h 39m 18s}  -16.71d {-16d 42' 32"}
MOON_DIST:        36.08 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.18 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      260.07, 20.14 [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 = 254.98,-7.63 [deg].

red DSS finding chart ps-file

GCN NOTICE

 
TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Mon 22 Jul 13 08:20:43 UT
NOTICE_TYPE:    INTEGRAL SPI ACS Trigger
TRIGGER_NUM:    6905,   Sub_Num: 0
GRB_INTEN:      9.38 [sigma]   
GRB_TIME:       29993.80 SOD {08:19:53.80} UT
GRB_DATE:       16495 TJD;   203 DOY;   13/07/22
COMMENTS:       INTEGRAL SPI_ACS GRB Trigger.
COMMENTS:       Time_Scale=2.0000 and Time_Error=1.0000.
COMMENTS:
COMMENTS:       NOTE: This SPIACS event is temporally(34.0<100sec) coincident with the SWIFT_BAT event (trignum=563213).
COMMENTS:
COMMENTS:       The SPIACS lightcurve can be found at:
COMMENTS:       ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2013-07/2013-07-22T08-19-53.5769-27655-35728-0.lc

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:21:37 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     563213,   Seg_Num: 0
GRB_RA:          260.6530d {+17h 22m 36.72s} (J2000),
                 260.8305d {+17h 23m 19.33s} (current),
                 259.9983d {+17h 20m 00.39s} (1950)
GRB_DEC:          -2.9728d {-02d 58' 22.0"} (J2000),
                  -2.9849d {-02d 59' 05.7"} (current),
                  -2.9260d {-02d 55' 33.6"} (1950)
GRB_ERROR:       4.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       8.65e-09 [erg/cm2/sec]
GRB_SIGNIF:      14.31 [sigma]
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30070.42 SOD {08:21:10.42} UT,   111.2 [sec] since BAT Trigger Time
TAM[0-3]:        327.68 237.20 261.64 243.58
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       121.87d {+08h 07m 28s}  +20.21d {+20d 12' 43"}
SUN_DIST:        136.46 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.85d {+19h 39m 23s}  -16.71d {-16d 42' 18"}
MOON_DIST:        36.12 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.20 [deg] galactic lon,lat of the burst
ECL_COORDS:      260.05, 20.14 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.07 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 22 Jul 13 08:21:51 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     563213,   Seg_Num: 0
GRB_RA:          260.6530d {+17h 22m 36.7s} (J2000),
                 260.8305d {+17h 23m 19.3s} (current),
                 259.9983d {+17h 20m 00.3s} (1950)
GRB_DEC:          -2.9728d {-02d 58' 22.0"} (J2000),
                  -2.9849d {-02d 59' 05.7"} (current),
                  -2.9260d {-02d 55' 33.6"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       205 [cnts]
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30070.42 SOD {08:21:10.42} UT,   111.2 [sec] since BAT Trigger Time
CENTROID_X:      248.90,  raw= 249  [pixels]
CENTROID_Y:      289.45,  raw= 289  [pixels]
ROLL:            296.50 [deg]
GAIN:            4
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -20.14
GRB_POS_XRT_Z:   -129.17
IMAGE_URL:       sw00563213000msxps_rw.img
SUN_POSTN:       121.87d {+08h 07m 28s}  +20.21d {+20d 12' 43"}
SUN_DIST:        136.46 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.85d {+19h 39m 24s}  -16.70d {-16d 42' 16"}
MOON_DIST:        36.12 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.20 [deg] galactic lon,lat of the burst
ECL_COORDS:      260.05, 20.14 [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 22 Jul 13 08:21:55 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     563213,   Seg_Num: 0
GRB_RA:          260.6530d {+17h 22m 36.7s} (J2000),
                 260.8305d {+17h 23m 19.3s} (current),
                 259.9983d {+17h 20m 00.3s} (1950)
GRB_DEC:          -2.9728d {-02d 58' 22.0"} (J2000),
                  -2.9849d {-02d 59' 05.7"} (current),
                  -2.9260d {-02d 55' 33.6"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       205 [cnts]
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30070.42 SOD {08:21:10.42} UT,   111.2 [sec] since BAT Trigger Time
CENTROID_X:      248.90,  raw= 249  [pixels]
CENTROID_Y:      289.45,  raw= 289  [pixels]
ROLL:            296.50 [deg]
GAIN:            4
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -20.14
GRB_POS_XRT_Z:   -129.17
IMAGE_URL:       sw00563213000msxps_rw.img
SUN_POSTN:       121.87d {+08h 07m 28s}  +20.21d {+20d 12' 43"}
SUN_DIST:        136.46 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.85d {+19h 39m 24s}  -16.70d {-16d 42' 16"}
MOON_DIST:        36.12 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.20 [deg] galactic lon,lat of the burst
ECL_COORDS:      260.05, 20.14 [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 22 Jul 13 08:23:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     563213,   Seg_Num: 0
GRB_RA:          260.670d {+17h 22m 41s} (J2000),
                 260.847d {+17h 23m 23s} (current),
                 260.015d {+17h 20m 04s} (1950)
GRB_DEC:          -2.979d {-02d 58' 44"} (J2000),
                  -2.991d {-02d 59' 28"} (current),
                  -2.932d {-02d 55' 56"} (1950)
GRB_DATE:        16495 TJD;   203 DOY;   13/07/22
GRB_TIME:        29959.22 SOD {08:19:19.22} UT
TRIGGER_INDEX:   265
GRB_PHI:          -5.60 [deg]
GRB_THETA:        40.94 [deg]
DELTA_TIME:      -44.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     6.24 [sigma]
IMAGE_SIGNIF:    7.67 [sigma]
LC_URL:          sw00563213000msb.lc
SUN_POSTN:       121.87d {+08h 07m 28s}  +20.21d {+20d 12' 42"}
SUN_DIST:        136.47 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.86d {+19h 39m 27s}  -16.70d {-16d 42' 05"}
MOON_DIST:        36.12 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.18 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      260.07, 20.14 [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 = 254.98,-7.63 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:24:19 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.993d {-02d 59' 35"} (J2000)
POINT_ROLL:      296.505d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30079.55 SOD {08:21:19.55} UT,   120.3 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.586
N_STARS:         64
X_OFFSET:        632 [pixels]
Y_OFFSET:        544 [pixels]
X_MAX:           1591 [pixels]
Y_MAX:           1503 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00563213000msufc0120.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 42"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.87d {+19h 39m 30s}  -16.70d {-16d 41' 58"}
MOON_DIST:        36.11 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.13 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:24:47 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.993d {-02d 59' 35"} (J2000)
POINT_ROLL:      296.505d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30079.55 SOD {08:21:19.55} UT,   120.3 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.586
N_STARS:         64
X_OFFSET:        632 [pixels]
Y_OFFSET:        544 [pixels]
X_MAX:           1591 [pixels]
Y_MAX:           1503 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00563213000msufc0120.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 41"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.88d {+19h 39m 31s}  -16.70d {-16d 41' 55"}
MOON_DIST:        36.11 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.13 [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 22 Jul 13 08:25:45 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.993d {-02d 59' 35"} (J2000)
ROLL:            296.505d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30079.55 SOD {08:21:19.55} UT,   120.3 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     396174090
X_OFFSET:        1051 [pixels]
Y_OFFSET:        791 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1211
Y_GRB_POS:       951
BINNING_INDEX:   1
IM_URL:          sw00563213000msuni0131.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 41"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.89d {+19h 39m 34s}  -16.70d {-16d 41' 48"}
MOON_DIST:        36.12 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.13 [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).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:26:07 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.993d {-02d 59' 35"} (J2000)
ROLL:            296.505d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30079.55 SOD {08:21:19.55} UT,   120.3 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     396174090
X_OFFSET:        1051 [pixels]
Y_OFFSET:        791 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1211
Y_GRB_POS:       951
BINNING_INDEX:   1
IM_URL:          sw00563213000msuni0131.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 41"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.89d {+19h 39m 35s}  -16.70d {-16d 41' 45"}
MOON_DIST:        36.12 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.65, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.13 [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.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:27:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.995d {-02d 59' 42"} (J2000)
POINT_ROLL:      296.502d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30291.49 SOD {08:24:51.49} UT,   332.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.239
N_STARS:         7
X_OFFSET:        731 [pixels]
Y_OFFSET:        471 [pixels]
X_MAX:           1690 [pixels]
Y_MAX:           1430 [pixels]
DET_THRESH:      5
PHOTO_THRESH:    2
SL_URL:          sw00563213000msufc0332.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 40"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.91d {+19h 39m 37s}  -16.69d {-16d 41' 37"}
MOON_DIST:        36.13 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.64, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.12 [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.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:27:05 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.995d {-02d 59' 42"} (J2000)
POINT_ROLL:      296.502d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30291.49 SOD {08:24:51.49} UT,   332.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.239
N_STARS:         7
X_OFFSET:        731 [pixels]
Y_OFFSET:        471 [pixels]
X_MAX:           1690 [pixels]
Y_MAX:           1430 [pixels]
DET_THRESH:      5
PHOTO_THRESH:    2
SL_URL:          sw00563213000msufc0332.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 40"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.90d {+19h 39m 37s}  -16.69d {-16d 41' 38"}
MOON_DIST:        36.13 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.64, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.12 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:28:53 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.995d {-02d 59' 42"} (J2000)
ROLL:            296.502d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30291.49 SOD {08:24:51.49} UT,   332.3 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     396174302
X_OFFSET:        1051 [pixels]
Y_OFFSET:        791 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1211
Y_GRB_POS:       951
BINNING_INDEX:   1
IM_URL:          sw00563213000msuni0343.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 39"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.92d {+19h 39m 42s}  -16.69d {-16d 41' 25"}
MOON_DIST:        36.15 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.64, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.12 [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).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 22 Jul 13 08:29:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     563213,   Seg_Num: 0
POINT_RA:        260.683d {+17h 22m 44s} (J2000)
POINT_DEC:        -2.995d {-02d 59' 42"} (J2000)
ROLL:            296.502d
IMG_START_DATE:  16495 TJD;   203 DOY;   13/07/22
IMG_START_TIME:  30291.49 SOD {08:24:51.49} UT,   332.3 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     396174302
X_OFFSET:        1051 [pixels]
Y_OFFSET:        791 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1211
Y_GRB_POS:       951
BINNING_INDEX:   1
IM_URL:          sw00563213000msuni0343.fits
SUN_POSTN:       121.87d {+08h 07m 29s}  +20.21d {+20d 12' 39"}
SUN_DIST:        136.49 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:      294.93d {+19h 39m 42s}  -16.69d {-16d 41' 23"}
MOON_DIST:        36.15 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       19.64, 18.16 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      260.08, 20.12 [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:        If you have elected to receive attachments:  
COMMENTS:        The uvot_catalog_image.fits.gz file does not exist; skipping the attachment.

GCN Circular #15013
E. Troja (NASA/GSFC/UMCP), V. D'Elia (ASDC), C. J. Mountford (U Leicester), C. Pagani (U Leicester), K. L. Page (U Leicester) and D. M. Palmer (LANL) report on behalf of the Swift Team:
At 08:19:19 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130722A (trigger=563213). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 260.670, -2.979 which is
```
   RA(J2000) = 17h 22m 41s
   Dec(J2000) = -02d 58' 44"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a triple-peaked structure with a duration of about 120 sec. The peak count rate was ~8500 counts/sec (15-350 keV), at ~72 sec after the trigger.
The XRT began observing the field at 08:21:10.4 UT, 111.2 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 260.6530, -2.9728 which is equivalent to:
```
   RA(J2000)  = +17h 22m 36.72s
   Dec(J2000) = -02d 58' 22.1"
```
with an uncertainty of 4.7 arcseconds (radius, 90% containment). This location is 65 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 8.65e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 120 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 0.63.
Burst Advocate for this burst is E. Troja (eleonora.troja AT nasa.gov). 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 Circular #15015
A. Melandri (INAF/OAB), C. Guidorzi (U. Ferrara), J. Japelj (U. Ljubljana), D. Kopac (U. Ljubljana), C.G. Mundell (LJMU) and A. Gomboc (U. Ljubljana) report:
The 2-m Faulkes Telescope South automatically began observing GRB 130722A (Troja et al. GCN Circ. 15013) on July 22 2013 at 08:21:29 UT (~130 s after the burst trigger).
We find a fading object at coordinates
```
RA(2000.0)=   17:22:36.47
Dec(2000.0)= -02:58:21.6   (error 1.3")
```
with the following magnitudes
```
Mid time from  Total Exp   Filter    Magnitude
trigger (min)   (s)
--------------------------------------------------------------
12.37           1x30        R       18.0 +- 0.1
18.07           1x60        R       18.3 +- 0.1
--------------------------------------------------------------
```
Magnitudes are calibrated against nearby USNO-B1 stars, performing aperture photometry of the proposed optical counterpart above together with the nearby object located at RA(2000.0)=17:22:36.54, Dec(2000.0)=-02:58:22.1. The latter might be related to the OT, has a distance of 1.2" from the candidate and a catalogued magnitude of R2=19.7. It looks extended and might be the host galaxy of GRB 130722A.
GCN Circular #15017
A. Trotter, D. Reichart, K. McLin, L. Cominsky, T. Berger, M. Carroll, H. T. Cromartie, R. Egger, A. Foster, C. Foster, N. Frank, J. Haislip, K. Ivarsen, D. James, A. LaCluyze, M. Maples, J. Moore, M. Nysewander, E. Speckhard, P. Taylor, and J. A. Crain report:
Skynet observed the Swift/BAT localization of GRB 130722A (Troja et al., GCN 15013, Swift trigger 563213) in the Rc and Ic bands with the 14" GLAST Optical Robotic Telescope (GORT) at the Hume observatory in California, beginning at t=100s post trigger and continuing until t~1hr. In stacked exposures, we marginally detect a source in both bands at the afterglow position reported by Melandri et al. (GCN 15015). Photometry is calibrated to 3 USNO-B1 stars in the field:
```
band     t[min]     exp[min]     mag
Rc       38         31           18.6 (+0.4, -0.3)
Ic       41         35           17.6 (+0.3, -0.2)
```
No further Skynet observations are scheduled.
GCN Circular #15018
D.N. Burrows (PSU), C. Pagani (U. Leicester), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), A. Melandri (INAF-OAB), B. Sbarufatti (INAF-OAB/PSU), P. D'Avanzo (INAF-OAB), J.A. Kennea (PSU), V. Mangano (PSU) and E. Troja report on behalf of the Swift-XRT team:
We have analysed 7.3 ks of XRT data for GRB 130722A (Troja et al. GCN Circ. 15013), from 117 s to 17.7 ks after the BAT trigger. The data comprise 739 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The refined XRT position is RA, Dec = 260.65405, -2.97376 which is equivalent to:
```
RA (J2000): 17 22 36.97
Dec(J2000): -02 58 25.5
```
with an uncertainty of 3.5 arcsec (radius, 90% confidence).
The late-time light curve (from T0+3.6 ks) can be modelled with a power-law decay with a decay index of alpha=1.10 (+/-0.11).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 2.21 (+/-0.05). The best-fitting absorption column is 4.18 (+0.18, -0.17) x 10^21 cm^-2, in excess of the Galactic value of 1.2 x 10^21 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 1.89 (+0.16, -0.15) and a best-fitting absorption column of 4.9 (+0.9, -0.8) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.8 x 10^-11 (7.8 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     4.9 (+0.9, -0.8) x 10^21 cm^-2
Galactic foreground: 1.2 x 10^21 cm^-2
Excess significance: 7.3 sigma
Photon index:	     1.89 (+0.16, -0.15)
```
If the light curve continues to decay with a power-law decay index of 1.10, the count rate at T+24 hours will be 0.023 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.1 x 10^-12 (1.8 x 10^-12) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00563213.
This circular is an official product of the Swift-XRT team.
GCN Circular #15019
P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team.
Using 6812 s of XRT Photon Counting mode data and 11 UVOT images for GRB 130722A, 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 = 260.65190, -2.97283 which is equivalent to:
```
RA (J2000): 17h 22m 36.46s
Dec (J2000): -02d 58' 22.2"
```
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 #15021
D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ), S. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto) and N. Kawai(Tokyo Tech) report on behalf of MITSuME collaboration:
We observed the field of GRB 130722A (Troja et al., GCNC 15013) with the optical three color (g', Rc and Ic) CCD camera attached to the MITSuME 50cm telescope of Okayama Astrophysical Observatory.
The observation started on 2013-07-22 11:15:06 UT (~2.9 h after the burst). We could not detect the previously reported afterglow (Melandri et al., GCNC 15015; Trotter et al., GCNC 15017) in all the three bands.
Three sigma upper limits of the OT are listed below. We used GSC 2.3 catalog for flux calibration.
```
#T0+[day]  MID-UT    T-EXP[sec]   g'     Rc     Ic
-----------------------------------------------------
0.23056    13:51:20    9000.0   >18.7  >18.8  >18.3
-----------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]
```
GCN Circular #15022
F. E. Marshall (NASA/GSFC) and E. Troja (NASA/GSFC/UMCP) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130722A 120 s after the BAT trigger (Troja et al., GCN Circ. 15013). A decaying source consistent with the optical position (Melandri et al. GCN Circ. 15015) is detected in the initial UVOT exposures. As noted by Melandri et al., there is a catalogued source near the position of the optical afterglow. The magnitudes and uncertainties reported below have been adjusted to accommodate the possibility that the nearby source accounts for all or none of the UVOT count rate observed at late times.
The preliminary UVOT position is:
```
  RA(J2000)  =  17:22:36.47 = 260.65196
  DEC(J2000) = -02:58:21.6  =  -2.97268
```
with an estimated uncertainty of 0.7 arcsec (radius, 90% confidence). The uncertainty has been adjusted slightly due to the possible contamination of the nearby source by up to 10%.
The preliminary detection and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC           120          270          147          19.6 (+0.12/-0.20)
v                 4209         5844          393         >19.7
b                 3594        17728         2039         >20.9
u                  332        16943         2059         >21.0
w1                4619        16030         1218         >21.2
w2                4004         5640          393         >21.3
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.63 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #15023
S. Golenetskii, R.Aptekar, D. Frederiks, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline, on behalf of the Konus-Wind team, report:
The long-duration GRB 130722A (Swift-BAT trigger 563213: Troja, et al., GCN 15013) triggered Konus-Wind at T0=3D30001.378 s UT (08:20:01.378).
The light curve from ~T0-6 s to ~T0+55 s shows two main emission pulses peaked at ~T0+1 s and ~T0+31 s, respectively.
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB130722_T30001/
As observed by Konus-Wind, the burst had a fluence of (2.35 =B1 0.12)x10-5 erg/cm2, and a 64-ms peak flux, measured from T0+0.256s, of (1.84 =B1 0.22)x10-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The 3-channel time-integrated spectrum (measured from T0-6.663 to T0+55.191 s) can be modeled, in the 20 keV - 1.35 MeV range, by cutoff power law with the following model parameters: the photon index alpha =3D -0.92 =B1 0.03 and the peak energy Ep =3D 179 =B1 5 keV,
The spectrum at the maximum count rate (measured from T0 to T0+8.448 s) is best fit, in the 20 keV - 5 MeV range, by cutoff power law with the following model parameters: the photon index alpha =3D -0.76 =B1 0.12 and the peak energy Ep =3D 219 =B1 15 keV, chi2 =3D 90.3/76 d.o.f.
All the quoted results are preliminary.
GCN Circular #15057
Owen Littlejohns (ASU), Nat Butler (ASU), Alan M. Watson (UNAM), Alexand= er Kutyrev (GSFC), William 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), Enrico Ramirez-Ruiz (UCSC), Jos=E9 A. de Diego (UNAM), Leonid Georgiev (UNAM), Jes=FAs Gonz=E1= lez (UNAM), Carlos Rom=E1n-Z=FA=F1iga (UNAM), Neil Gehrels (GSFC), and Harvey= Moseley (GSFC) report:
We observed the field of GRB 130722A (Melandri, et al., GCN 15013) with the 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 2013/07 23.23 to 2013/07 23.39 UTC (21.24 to 25.00 hours after the BAT trigger), obtaining a total of 2.33 hours exposure in the i' band.
We detect the candidate GRB host galaxy from Melandri et al. (GCN 15015) noting also that the source is extended. In comparison with USNO-B1, we obtain:
i' 19.58 +/- 0.02
This magnitude is in the AB system and not corrected for Galactic extinction in the direction of the GRB. We do not detect the candidate OT, although it is likely blended with the host galaxy. In comparison with the Faulkes measurement one night earlier, the OT has thus faded by at least 1.5 magnitudes.
We thank the staff of the Observatorio Astron=F3mico Nacional in San Pedro M=E1rtir.

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Jochen Greiner, last update: 29-Jul-2013 [Disclaimer]