Gamma-ray Burst 120712A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:42:46 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     526351,   Seg_Num: 0
GRB_RA:          169.605d {+11h 18m 25s} (J2000),
                 169.761d {+11h 19m 03s} (current),
                 168.984d {+11h 15m 56s} (1950)
GRB_DEC:         -20.061d {-20d 03' 38"} (J2000),
                 -20.129d {-20d 07' 45"} (current),
                 -19.787d {-19d 47' 13"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3883 [cnts]    Image_Peak=256 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       21407 [cnts]
BKG_TIME:        49334.58 SOD {13:42:14.58} UT
BKG_DUR:         8 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49347.38 SOD {13:42:27.38} UT
GRB_PHI:         154.66 [deg]
GRB_THETA:        31.33 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     20.46 [sigma]
IMAGE_SIGNIF:    11.60 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +1  +0  +0 -34  +0 
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 29"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.91d {+02h 15m 39s}  +16.15d {+16d 09' 06"}
MOON_DIST:       137.97 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      274.98, 37.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      178.82,-22.47 [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 = 40.03,16.48 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(2.0<100sec) coincident with the FERMI_GBM event (trignum=363793348).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:42:50 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      44
TRIGGER_NUM:     363793348
GRB_RA:          175.367d {+11h 41m 28s} (J2000),
                 175.525d {+11h 42m 06s} (current),
                 174.736d {+11h 38m 57s} (1950)
GRB_DEC:         -23.167d {-23d 09' 59"} (J2000),
                 -23.236d {-23d 14' 09"} (current),
                 -22.889d {-22d 53' 20"} (1950)
GRB_ERROR:       11.80 [deg radius, statistical plus systematic]
GRB_INTEN:       94 [cnts/sec]
DATA_SIGNIF:     7.30 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49345.61 SOD {13:42:25.61} UT
GRB_PHI:         265.98 [deg]
GRB_THETA:        40.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      0.88
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      98%  GRB
2nd_MOST_LIKELY:   1%  Generic Transient
DETECTORS:       0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0,
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 29"}
SUN_DIST:         76.29 [deg]   Sun_angle= -4.2 [hr] (East of Sun)
MOON_POSTN:       33.91d {+02h 15m 39s}  +16.15d {+16d 09' 06"}
MOON_DIST:       143.28 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      282.70, 36.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      185.51,-22.98 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 23.72,0.23 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=526351).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:43:03 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      57
TRIGGER_NUM:     363793348
GRB_RA:          175.433d {+11h 41m 44s} (J2000),
                 175.591d {+11h 42m 22s} (current),
                 174.803d {+11h 39m 13s} (1950)
GRB_DEC:         -23.167d {-23d 09' 59"} (J2000),
                 -23.236d {-23d 14' 09"} (current),
                 -22.889d {-22d 53' 20"} (1950)
GRB_ERROR:       10.42 [deg radius, statistical plus systematic]
GRB_INTEN:       110 [cnts/sec]
DATA_SIGNIF:     11.10 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49345.61 SOD {13:42:25.61} UT
GRB_PHI:         265.98 [deg]
GRB_THETA:        40.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      0.93
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      98%  GRB
2nd_MOST_LIKELY:   1%  Generic Transient
DETECTORS:       0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0,
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 29"}
SUN_DIST:         76.34 [deg]   Sun_angle= -4.2 [hr] (East of Sun)
MOON_POSTN:       33.91d {+02h 15m 39s}  +16.15d {+16d 09' 08"}
MOON_DIST:       143.34 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      282.78, 36.96 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      185.57,-22.96 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 23.72,0.23 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=526351).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:43:10 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      68
TRIGGER_NUM:     363793348
GRB_RA:          165.683d {+11h 02m 44s} (J2000),
                 165.835d {+11h 03m 20s} (current),
                 165.080d {+11h 00m 19s} (1950)
GRB_DEC:         -28.000d {-28d 00' 00"} (J2000),
                 -28.068d {-28d 04' 02"} (current),
                 -27.731d {-27d 43' 49"} (1950)
GRB_ERROR:       8.58 [deg radius, statistical plus systematic]
GRB_INTEN:       158 [cnts/sec]
DATA_SIGNIF:     15.90 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49345.61 SOD {13:42:25.61} UT
GRB_PHI:         270.00 [deg]
GRB_THETA:        30.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      0.76
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      97%  GRB
2nd_MOST_LIKELY:   2%  Generic Transient
DETECTORS:       0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0,
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 29"}
SUN_DIST:         71.86 [deg]   Sun_angle= -3.6 [hr] (East of Sun)
MOON_POSTN:       33.92d {+02h 15m 40s}  +16.15d {+16d 09' 09"}
MOON_DIST:       134.20 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.47, 29.01 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      179.09,-31.17 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 23.72,0.23 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=526351).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:45:41 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      56
TRIGGER_NUM:     363793348
GRB_RA:          175.100d {+11h 40m 24s} (J2000),
                 175.258d {+11h 41m 02s} (current),
                 174.469d {+11h 37m 52s} (1950)
GRB_DEC:         -19.880d {-19d 52' 47"} (J2000),
                 -19.950d {-19d 56' 57"} (current),
                 -19.603d {-19d 36' 09"} (1950)
GRB_ERROR:       3.81 [deg radius, statistical only]
DATA_SIGNIF:     11.20 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49345.61 SOD {13:42:25.61} UT
GRB_PHI:         270.00 [deg]
GRB_THETA:        42.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4143 (Gnd S/W Version number)
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 28"}
SUN_DIST:         74.38 [deg]   Sun_angle= -4.2 [hr] (East of Sun)
MOON_POSTN:       33.94d {+02h 15m 45s}  +16.16d {+16d 09' 28"}
MOON_DIST:       143.11 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      280.96, 39.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      183.76,-20.12 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=526351).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:45:49 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      67
TRIGGER_NUM:     363793348
GRB_RA:          174.290d {+11h 37m 10s} (J2000),
                 174.448d {+11h 37m 48s} (current),
                 173.659d {+11h 34m 38s} (1950)
GRB_DEC:         -18.930d {-18d 55' 47"} (J2000),
                 -18.999d {-18d 59' 57"} (current),
                 -18.653d {-18d 39' 10"} (1950)
GRB_ERROR:       3.16 [deg radius, statistical only]
DATA_SIGNIF:     16.60 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49345.61 SOD {13:42:25.61} UT
GRB_PHI:         272.00 [deg]
GRB_THETA:        42.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4143 (Gnd S/W Version number)
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 28"}
SUN_DIST:         73.23 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:       33.94d {+02h 15m 45s}  +16.16d {+16d 09' 29"}
MOON_DIST:       142.32 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      279.58, 40.55 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      182.60,-19.58 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=526351).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:45:54 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      70
TRIGGER_NUM:     363793348
GRB_RA:          172.100d {+11h 28m 24s} (J2000),
                 172.257d {+11h 29m 02s} (current),
                 171.475d {+11h 25m 54s} (1950)
GRB_DEC:         -21.060d {-21d 03' 35"} (J2000),
                 -21.129d {-21d 07' 44"} (current),
                 -20.784d {-20d 47' 03"} (1950)
GRB_ERROR:       2.82 [deg radius, statistical only]
DATA_SIGNIF:     16.90 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49345.61 SOD {13:42:25.61} UT
GRB_PHI:         272.00 [deg]
GRB_THETA:        39.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4143 (Gnd S/W Version number)
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 28"}
SUN_DIST:         72.61 [deg]   Sun_angle= -4.0 [hr] (East of Sun)
MOON_POSTN:       33.94d {+02h 15m 45s}  +16.16d {+16d 09' 29"}
MOON_DIST:       140.30 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      278.19, 37.79 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      181.57,-22.38 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=526351).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:44:07 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.073d {-20d 04' 23"} (J2000)
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49438.26 SOD {13:43:58.26} UT,   90.9 [sec] since BAT Trigger Time
COUNTS:          11    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        1    Max_iter_allowed= 4
ERROR_CODE:      1
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        No source found in the image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:46:00 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     526351,   Seg_Num: 0
GRB_RA:          169.605d {+11h 18m 25s} (J2000),
                 169.761d {+11h 19m 03s} (current),
                 168.984d {+11h 15m 56s} (1950)
GRB_DEC:         -20.061d {-20d 03' 38"} (J2000),
                 -20.129d {-20d 07' 45"} (current),
                 -19.787d {-19d 47' 13"} (1950)
GRB_DATE:        16120 TJD;   194 DOY;   12/07/12
GRB_TIME:        49347.38 SOD {13:42:27.38} UT
TRIGGER_INDEX:   146
GRB_PHI:         154.66 [deg]
GRB_THETA:        31.33 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     20.46 [sigma]
IMAGE_SIGNIF:    11.60 [sigma]
LC_URL:          sw00526351000msb.lc
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 28"}
SUN_DIST:         70.10 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.94d {+02h 15m 45s}  +16.16d {+16d 09' 30"}
MOON_DIST:       137.95 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      274.98, 37.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      178.82,-22.47 [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 = 40.03,16.48 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:47:07 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.073d {-20d 04' 21"} (J2000)
POINT_ROLL:      303.715d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49442.80 SOD {13:44:02.80} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.329
N_STARS:         56
X_OFFSET:        594 [pixels]
Y_OFFSET:        501 [pixels]
X_MAX:           1553 [pixels]
Y_MAX:           1460 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00526351000msufc0095.fits
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 27"}
SUN_DIST:         70.12 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.95d {+02h 15m 48s}  +16.16d {+16d 09' 38"}
MOON_DIST:       137.96 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:47:25 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.073d {-20d 04' 21"} (J2000)
POINT_ROLL:      303.715d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49442.80 SOD {13:44:02.80} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.329
N_STARS:         56
X_OFFSET:        594 [pixels]
Y_OFFSET:        501 [pixels]
X_MAX:           1553 [pixels]
Y_MAX:           1460 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00526351000msufc0095.fits
SUN_POSTN:       112.28d {+07h 29m 07s}  +21.86d {+21d 51' 27"}
SUN_DIST:         70.12 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.95d {+02h 15m 48s}  +16.16d {+16d 09' 41"}
MOON_DIST:       137.95 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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:     Thu 12 Jul 12 13:48:36 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.073d {-20d 04' 21"} (J2000)
ROLL:            303.715d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49442.80 SOD {13:44:02.80} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     363793452
X_OFFSET:        913 [pixels]
Y_OFFSET:        820 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1073
Y_GRB_POS:       980
BINNING_INDEX:   1
IM_URL:          sw00526351000msuni0105.fits
SUN_POSTN:       112.28d {+07h 29m 08s}  +21.86d {+21d 51' 27"}
SUN_DIST:         70.12 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.96d {+02h 15m 50s}  +16.16d {+16d 09' 50"}
MOON_DIST:       137.95 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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:     Thu 12 Jul 12 13:48:46 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.073d {-20d 04' 21"} (J2000)
ROLL:            303.715d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49442.80 SOD {13:44:02.80} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     363793452
X_OFFSET:        913 [pixels]
Y_OFFSET:        820 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1073
Y_GRB_POS:       980
BINNING_INDEX:   1
IM_URL:          sw00526351000msuni0105.fits
SUN_POSTN:       112.28d {+07h 29m 08s}  +21.86d {+21d 51' 27"}
SUN_DIST:         70.12 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.96d {+02h 15m 51s}  +16.16d {+16d 09' 51"}
MOON_DIST:       137.94 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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 NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:49:20 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     526351,   Seg_Num: 0
GRB_RA:          169.5903d {+11h 18m 21.67s} (J2000),
                 169.7463d {+11h 18m 59.10s} (current),
                 168.9685d {+11h 15m 52.44s} (1950)
GRB_DEC:         -20.0333d {-20d 01' 59.8"} (J2000),
                 -20.1019d {-20d 06' 06.9"} (current),
                 -19.7598d {-19d 45' 35.1"} (1950)
GRB_ERROR:       4.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49522.00 SOD {13:45:22.00} UT,   174.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       112.28d {+07h 29m 08s}  +21.86d {+21d 51' 27"}
SUN_DIST:         70.07 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.97d {+02h 15m 52s}  +16.17d {+16d 09' 55"}
MOON_DIST:       137.91 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      274.95, 37.73 [deg] galactic lon,lat of the burst
ECL_COORDS:      178.79,-22.45 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:50:01 UT
NOTICE_TYPE:     Swift-UVOT Position
TRIGGER_NUM:     526351,   Seg_Num: 0
GRB_RA:          169.5884d {+11h 18m 21.21s} (J2000),
                 169.7444d {+11h 18m 58.64s} (current),
                 168.9666d {+11h 15m 51.99s} (1950)
GRB_DEC:         -20.0338d {-20d 02' 01.6"} (J2000),
                 -20.1024d {-20d 06' 08.7"} (current),
                 -19.7603d {-19d 45' 36.9"} (1950)
GRB_ERROR:       1.1 [arcsec radius, statistical only]
GRB_MAG:         17.10 +/- 0.40 [mag]
FILTER:          10, White
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49442.00 SOD {13:44:02.00} UT,   94.6 [sec] since BAT Trigger Time
SUN_POSTN:       112.28d {+07h 29m 08s}  +21.86d {+21d 51' 26"}
SUN_DIST:         70.07 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       33.97d {+02h 15m 53s}  +16.17d {+16d 10' 00"}
MOON_DIST:       137.90 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      274.94, 37.73 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      178.79,-22.45 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT UVOT Position Notice.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        Result based on srclist data.  
COMMENTS:        Notice generated automatically.

GCN Circular #13454
M. J. Page (UCL-MSSL), A. A. Breeveld (UCL-MSSL), D. N. Burrows (PSU), V. D'Elia (ASDC), P. A. Evans (U Leicester), N. Gehrels (NASA/GSFC), N. P. M. Kuin (UCL-MSSL), O. M. Littlejohns (U Leicester), F. E. Marshall (NASA/GSFC), S. R. Oates (UCL-MSSL), K. L. Page (U Leicester), D. M. Palmer (LANL) and V. N. Yershov (UCL-MSSL) report on behalf of the Swift Team:
At 13:42:27 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 120712A (trigger=526351). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 169.605, -20.061 which is
```
   RA(J2000)  =  11h 18m 25s
   Dec(J2000) = -20d 03' 38"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a couple of overlapping peaks with a total duration of about 25 sec. The peak count rate was ~3000 counts/sec (15-350 keV), at ~8 sec after the trigger.
The XRT began observing the field at 13:43:58.2 UT, 90.9 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source located at RA, Dec 169.59034, -20.03336 which is equivalent to:
```
   RA(J2000)  = 11h 18m 21.68s
   Dec(J2000) = -20d 02' 00.1"
```
with an uncertainty of 4.1 arcseconds (radius, 90% containment). This location is 111 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper. We cannot determine whether the source is fading at the present time.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density in excess of the Galactic value (3.60 x 10^20 cm^-2, Kalberla et al. 2005), with an excess column of 3 (+2.23/-1.94) x 10^21 cm^-2 (90% confidence).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 95 seconds after the BAT trigger. There is a candidate afterglow in the list of sources generated on-board at
```
  RA(J2000)  =	11:18:21.23 = 169.58847
  DEC(J2000) = -20:02:01.8  = -20.03383
```
with a 90%-confidence error radius of about 1.10 arc sec. This position is 6.5 arc sec. from the center of the XRT error circle. The estimated magnitude is 17.10. No correction has been made for the expected extinction corresponding to E(B-V) of 0.04.
Burst Advocate for this burst is M. J. Page (mjp AT mssl.ucl.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:     Thu 12 Jul 12 13:55:30 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
POINT_ROLL:      303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49655.05 SOD {13:47:35.05} UT,   307.7 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.782
N_STARS:         63
X_OFFSET:        354 [pixels]
Y_OFFSET:        261 [pixels]
X_MAX:           1793 [pixels]
Y_MAX:           1700 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00526351000msufc0307.fits
SUN_POSTN:       112.29d {+07h 29m 09s}  +21.86d {+21d 51' 24"}
SUN_DIST:         70.12 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.02d {+02h 16m 04s}  +16.18d {+16d 10' 41"}
MOON_DIST:       137.89 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 13:55:50 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
POINT_ROLL:      303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49655.05 SOD {13:47:35.05} UT,   307.7 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.782
N_STARS:         63
X_OFFSET:        354 [pixels]
Y_OFFSET:        261 [pixels]
X_MAX:           1793 [pixels]
Y_MAX:           1700 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00526351000msufc0307.fits
SUN_POSTN:       112.29d {+07h 29m 09s}  +21.86d {+21d 51' 24"}
SUN_DIST:         70.12 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.02d {+02h 16m 05s}  +16.18d {+16d 10' 44"}
MOON_DIST:       137.89 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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:     Thu 12 Jul 12 13:57:06 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
ROLL:            303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49655.05 SOD {13:47:35.05} UT,   307.7 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     363793664
X_OFFSET:        913 [pixels]
Y_OFFSET:        820 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1073
Y_GRB_POS:       980
BINNING_INDEX:   1
IM_URL:          sw00526351000msuni0317.fits
SUN_POSTN:       112.29d {+07h 29m 09s}  +21.86d {+21d 51' 24"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.03d {+02h 16m 07s}  +16.18d {+16d 10' 53"}
MOON_DIST:       137.88 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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:     Thu 12 Jul 12 13:56:58 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     526351,   Seg_Num: 0
GRB_RA:          169.5880d {+11h 18m 21.11s} (J2000),
                 169.7440d {+11h 18m 58.54s} (current),
                 168.9662d {+11h 15m 51.89s} (1950)
GRB_DEC:         -20.0341d {-20d 02' 02.7"} (J2000),
                 -20.1027d {-20d 06' 09.7"} (current),
                 -19.7606d {-19d 45' 38.0"} (1950)
GRB_ERROR:       2.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49522.00 SOD {13:45:22.00} UT,   174.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       112.29d {+07h 29m 09s}  +21.86d {+21d 51' 24"}
SUN_DIST:         70.07 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.03d {+02h 16m 07s}  +16.18d {+16d 10' 52"}
MOON_DIST:       137.85 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      274.94, 37.73 [deg] galactic lon,lat of the burst
ECL_COORDS:      178.79,-22.45 [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:     Thu 12 Jul 12 13:57:18 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
ROLL:            303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  49655.05 SOD {13:47:35.05} UT,   307.7 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     363793664
X_OFFSET:        913 [pixels]
Y_OFFSET:        820 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1073
Y_GRB_POS:       980
BINNING_INDEX:   1
IM_URL:          sw00526351000msuni0317.fits
SUN_POSTN:       112.29d {+07h 29m 09s}  +21.86d {+21d 51' 24"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.03d {+02h 16m 08s}  +16.18d {+16d 10' 55"}
MOON_DIST:       137.88 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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 NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 14:02:57 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
POINT_ROLL:      303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  50208.20 SOD {13:56:48.20} UT,   860.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.895
N_STARS:         153
X_OFFSET:        354 [pixels]
Y_OFFSET:        261 [pixels]
X_MAX:           1793 [pixels]
Y_MAX:           1700 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00526351000msufc0860.fits
SUN_POSTN:       112.29d {+07h 29m 10s}  +21.86d {+21d 51' 22"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.08d {+02h 16m 19s}  +16.19d {+16d 11' 37"}
MOON_DIST:       137.84 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 12 Jul 12 14:03:21 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
POINT_ROLL:      303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  50208.20 SOD {13:56:48.20} UT,   860.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.895
N_STARS:         153
X_OFFSET:        354 [pixels]
Y_OFFSET:        261 [pixels]
X_MAX:           1793 [pixels]
Y_MAX:           1700 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00526351000msufc0860.fits
SUN_POSTN:       112.29d {+07h 29m 10s}  +21.86d {+21d 51' 22"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.08d {+02h 16m 20s}  +16.19d {+16d 11' 40"}
MOON_DIST:       137.84 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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:     Thu 12 Jul 12 14:04:36 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
ROLL:            303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  50208.20 SOD {13:56:48.20} UT,   860.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     363794217
X_OFFSET:        913 [pixels]
Y_OFFSET:        820 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1073
Y_GRB_POS:       980
BINNING_INDEX:   1
IM_URL:          sw00526351000msuni0870.fits
SUN_POSTN:       112.29d {+07h 29m 10s}  +21.86d {+21d 51' 21"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.09d {+02h 16m 22s}  +16.20d {+16d 11' 50"}
MOON_DIST:       137.83 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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:     Thu 12 Jul 12 14:04:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     526351,   Seg_Num: 0
POINT_RA:        169.621d {+11h 18m 29s} (J2000)
POINT_DEC:       -20.072d {-20d 04' 17"} (J2000)
ROLL:            303.713d
IMG_START_DATE:  16120 TJD;   194 DOY;   12/07/12
IMG_START_TIME:  50208.20 SOD {13:56:48.20} UT,   860.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     363794217
X_OFFSET:        913 [pixels]
Y_OFFSET:        820 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1073
Y_GRB_POS:       980
BINNING_INDEX:   1
IM_URL:          sw00526351000msuni0870.fits
SUN_POSTN:       112.29d {+07h 29m 10s}  +21.86d {+21d 51' 21"}
SUN_DIST:         70.11 [deg]   Sun_angle= -3.8 [hr] (East of Sun)
MOON_POSTN:       34.10d {+02h 16m 23s}  +16.20d {+16d 11' 52"}
MOON_DIST:       137.83 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      275.00, 37.71 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      178.84,-22.47 [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 #13455
S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), M. J. Page (UCL-MSSL), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team):
Using the data set from T-120 to T+254 sec from recent telemetry downlinks, we report further analysis of BAT GRB 120712A (trigger #526351) (Page, et al., GCN Circ. 13454). The BAT ground-calculated position is RA, Dec = 169.598, -20.051 deg, which is
```
   RA(J2000)  =  11h 18m 23.6s 
   Dec(J2000) = -20d 03' 02.9" 
```
with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 55%.
The mask-weighted light curve shows two main overlapping peaks starting at ~T-5 sec, peaking at ~T+0 and ~T+8 sec, and ending at ~T+20 sec. T90 (15-350 keV) is 14.7 +- 3.3 sec (estimated error including systematics).
The time-averaged spectrum from T-4.57 to T+16.53 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.36 +- 0.08. The fluence in the 15-150 keV band is 1.8 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+7.51 sec in the 15-150 keV band is 2.4 +- 0.2 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/526351/BA/
GCN Circular #13456
J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
Using 5145 s of XRT Photon Counting mode data and 8 UVOT images for GRB 120712A, 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 = 169.58851, -20.03397 which is equivalent to:
```
RA (J2000): 11h 18m 21.24s
Dec (J2000): -20d 02' 02.3"
```
with an uncertainty of 1.5 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 #13457
J. Elliott, P. Schady (MPE Garching), D. A. Kann (TLS Tautenburg) and J. Greiner (MPE Garching), report on behalf of the GROND team:
We observed the field of GRB 120712A (Swift trigger 526351; Page et al., GCN #13454) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG/ESO telescope at La Silla Observatory (Chile).
Observations started at 22:57 UT on 2012-07-12, 9.24 hours after the GRB trigger, and are continuing. They were performed at an average seeing of 1".12 and at an average airmass of 1.27.
We found a single point source within the 1".5 enhanced Swift-XRT error circle reported by Osborne et al. (GCN #13456) at
```
RA (J2000.0) = 11:18:21.24
DEC (J2000.0) = -20:02:01.4
```
with an uncertainty of 0".5 in each coordinate.
Based on images of 7.66 min of total exposures in g'r'i'z' and 8 min in JHK, 9.5 hours post-burst, we estimate preliminary magnitudes (all in AB) of
g' = 23.1 +/- 0.1,
r' = 21.3 +/- 0.1,
i' = 20.6 +/- 0.1,
z' = 20.5 +/- 0.1,
J = 20.0 +/- 0.1,
H = 19.8 +/- 0.2 and,
K > 19.1.
Assuming no dust the SED is well fit with a spectral index of beta=1.1 +/- 0.1 at a redshift of z=4.0 +/- 0.2. Including host galaxy dust decreases the redshift, although both solutions remain consistent within 1-sigma.
Given magnitudes are calibrated against GROND zeropoints as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.04 mag in the direction of the burst (Schlegel et al. 1998).
GCN Circular #13458
N. R. Tanvir (U. Leicester), A. J. Levan (U. Warwick) and D. Krogsrud (Gemini) report on behalf of a larger collaboration:
We observed the afterglow of GRB 120712A (Page et al. GCN 12454; using the GMOS-S spectrograph on Gemini-South in good conditions.
Observations began at 2012-7-12 23:43 UT, about 10 hr post-burst. The spectrum reveals a clear Ly-a break, and many other absorption features. A provisional reduction gives a redshift of z=4.15, although this figure will be refined with better calibration.
GCN Circular #13459
K.L. Page (U. Leicester), C. Pagani (U. Leicester), B. Sbarufatti (INAF-OAB/PSU), G. Stratta (ASDC), P. D'Avanzo (INAF-OAB), M.C. Stroh (PSU), D.N. Burrows (PSU), J.A. Kennea (PSU), A.P. Beardmore (U. Leicester) and M.J. Page report on behalf of the Swift-XRT team:
We have analysed 6.2 ks of XRT data for GRB 120712A (Page et al. GCN Circ. 13454), from 94 s to 12.9 ks after the BAT trigger. The data comprise 90 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 13456).
The light curve can be modelled with an initial power-law decay with an index of alpha=0.87 (+/-0.06), followed by a break at T+3706 s to an alpha of 1.80 (+0.33, -0.29).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.16 (+0.17, -0.14). The best-fitting absorption column is 5.0 (+3.1, -1.4) x 10^20 cm^-2, consistent with the Galactic value of 3.6 x 10^20 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.3 x 10^-11 (4.0 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     5.0 (+3.1, -1.4) x 10^20 cm^-2
Galactic foreground: 3.6 x 10^20 cm^-2
Excess significance: <1.6 sigma
Photon index:	     2.16 (+0.17, -0.14)
```
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00526351.
This circular is an official product of the Swift-XRT team.
GCN Circular #13460
D. Xu (WIS), J. P. U. Fynbo (DARK/NBI), V. D'Elia (ASDC, INAF), N. R. Tanvir (U. Leicester) report on behalf of the X-shooter GRB GTO collaboration:
We observed the field of GRB 120712A (Page et al., GCN 13454) with the ESO VLT equipped with the X-shooter spectrograph. Observations started at 00:06 UT on 2012-07-13 (10.4 hr after the BAT trigger), for a total exposure time of ~60 min in each of the UVB, VIS, and NIR arms, covering the wavelength range 3000-25000A.
The spectrum exhibits a relatively broad trough (centered at ~6292A) which we interpreted as Lyman-alpha break. Redward of this feature the spectrum shows metals lines such as Mg II, Si II, and Fe II, all at a common redshift z=4.1745. We also measured the HI column density, logN(HI)~20.3, from the Lyman-alpha feature.
We acknowledge the excellent support of the ESO observing staff, in particular Fernando J. Selman.
GCN Circular #13461
S. R. Oates (MSSL-UCL) and M. J. Page (MSSL-UCL) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 120712A 95 s after the BAT trigger (Page et al., GCN Circ. 13454). A source consistent with the XRT position (Osborne et al., GCN Circ. 13456) and the optical position reported by GROND (Elliott et al., GCN Circ. 13457) is detected in the initial UVOT exposures.
The preliminary UVOT position is:
```
  RA  (J2000) =  11:18:21.25 = 169.58854 (deg.)
  Dec (J2000) = -20:02:01.7  = -20.03380 (deg.)
```
with an estimated uncertainty of 0.50 arc sec. (radius, 90% confidence).
Preliminary detections 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)         95           245          147        16.95 +/- 0.03
white              861         1010          150        18.93 +/- 0.09
v                  637          657           19        16.79 +/- 0.15
b                  563        18691         1160        >21.8
u                  308        35517         2569        >22.1
w1                 686        35216         3108        >22.0
m2                4818        41481         3296        >22.1
w2                 613        40167         2931        >22.1
```
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 #13469
David Gruber (MPE) reports on behalf of the Fermi GBM Team:
"At 13:42:25.61 UT on 12 July 2012, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 120712A (trigger 363793348 / 120712571). which was also detected by the Swift/BAT (Page et al. 2012, GCN 13454). The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight is 42 degrees.
This burst was also independently detected by INTEGRAL SPI-ACS.
The GBM light curve consists of two overlapping peaks with a duration (T90) of about 23 s (50-300 keV). The time-averaged spectrum from T0-3 s to T0+16 s is well fit by a Band function with Epeak = 124 +/- 26 keV, alpha = -0.6 +/- 0.2, and beta = -1.80 +/- 0.02.
The event fluence (10-1000 keV) in this time interval is (4.43 +/- 0.05)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+9.3 s in the 10-1000 keV band is 3.5 +/- 0.2 ph/s/cm^2.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."

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Jochen Greiner, last update: 14-Jul-2012 [Disclaimer]