Gamma-ray Burst 120802A

(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 02 Aug 12 08:01:13 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     529486,   Seg_Num: 0
GRB_RA:           44.849d {+02h 59m 24s} (J2000),
                  45.022d {+03h 00m 05s} (current),
                  44.161d {+02h 56m 39s} (1950)
GRB_DEC:         +13.757d {+13d 45' 26"} (J2000),
                 +13.807d {+13d 48' 24"} (current),
                 +13.559d {+13d 33' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4866 [cnts]    Image_Peak=286 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   148     E_range: 25-100 keV
BKG_INTEN:       27810 [cnts]
BKG_TIME:        28838.50 SOD {08:00:38.50} UT
BKG_DUR:         8 [sec]
GRB_DATE:        16141 TJD;   215 DOY;   12/08/02
GRB_TIME:        28851.62 SOD {08:00:51.62} UT
GRB_PHI:         -45.99 [deg]
GRB_THETA:        32.31 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     21.07 [sigma]
IMAGE_SIGNIF:    11.33 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +1  +0  +0 -10  +0 
SUN_POSTN:       132.88d {+08h 51m 31s}  +17.62d {+17d 37' 25"}
SUN_DIST:         83.87 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.93d {+20h 55m 42s}  -12.40d {-12d 23' 47"}
MOON_DIST:        93.98 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.16,-38.66 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       46.40, -3.11 [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 = 1.56,4.46 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:02:30 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.838d {+02h 59m 21s} (J2000)
POINT_DEC:       +13.755d {+13d 45' 18"} (J2000)
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28936.38 SOD {08:02:16.38} UT,   84.8 [sec] since BAT Trigger Time
COUNTS:          9    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 02 Aug 12 08:04:46 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     529486,   Seg_Num: 0
GRB_RA:           44.849d {+02h 59m 24s} (J2000),
                  45.022d {+03h 00m 05s} (current),
                  44.161d {+02h 56m 39s} (1950)
GRB_DEC:         +13.757d {+13d 45' 26"} (J2000),
                 +13.807d {+13d 48' 24"} (current),
                 +13.559d {+13d 33' 31"} (1950)
GRB_DATE:        16141 TJD;   215 DOY;   12/08/02
GRB_TIME:        28851.62 SOD {08:00:51.62} UT
TRIGGER_INDEX:   148
GRB_PHI:         -45.99 [deg]
GRB_THETA:        32.31 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     21.07 [sigma]
IMAGE_SIGNIF:    11.33 [sigma]
LC_URL:          sw00529486000msb.lc
SUN_POSTN:       132.88d {+08h 51m 32s}  +17.62d {+17d 37' 22"}
SUN_DIST:         83.87 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.96d {+20h 55m 50s}  -12.39d {-12d 23' 09"}
MOON_DIST:        93.95 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.16,-38.66 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       46.40, -3.11 [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 = 1.56,4.46 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:06:02 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.838d {+02h 59m 21s} (J2000)
POINT_DEC:       +13.755d {+13d 45' 18"} (J2000)
POINT_ROLL:      73.278d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28938.57 SOD {08:02:18.57} UT,   87.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.681
N_STARS:         29
X_OFFSET:        573 [pixels]
Y_OFFSET:        528 [pixels]
X_MAX:           1532 [pixels]
Y_MAX:           1487 [pixels]
DET_THRESH:      18
PHOTO_THRESH:    10
SL_URL:          sw00529486000msufc0086.fits
SUN_POSTN:       132.88d {+08h 51m 32s}  +17.62d {+17d 37' 22"}
SUN_DIST:         83.88 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.97d {+20h 55m 53s}  -12.38d {-12d 22' 56"}
MOON_DIST:        93.92 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.15,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.39, -3.11 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:06:39 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.838d {+02h 59m 21s} (J2000)
POINT_DEC:       +13.755d {+13d 45' 18"} (J2000)
POINT_ROLL:      73.278d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28938.57 SOD {08:02:18.57} UT,   87.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.681
N_STARS:         29
X_OFFSET:        573 [pixels]
Y_OFFSET:        528 [pixels]
X_MAX:           1532 [pixels]
Y_MAX:           1487 [pixels]
DET_THRESH:      18
PHOTO_THRESH:    10
SL_URL:          sw00529486000msufc0086.fits
SUN_POSTN:       132.88d {+08h 51m 32s}  +17.62d {+17d 37' 21"}
SUN_DIST:         83.88 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.98d {+20h 55m 54s}  -12.38d {-12d 22' 49"}
MOON_DIST:        93.92 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.15,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.39, -3.11 [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 02 Aug 12 08:07:48 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.838d {+02h 59m 21s} (J2000)
POINT_DEC:       +13.755d {+13d 45' 18"} (J2000)
ROLL:            73.278d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28938.57 SOD {08:02:18.57} UT,   87.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     365587348
X_OFFSET:        892 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1052
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00529486000msuni0096.fits
SUN_POSTN:       132.88d {+08h 51m 32s}  +17.62d {+17d 37' 21"}
SUN_DIST:         83.88 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.99d {+20h 55m 57s}  -12.38d {-12d 22' 37"}
MOON_DIST:        93.91 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.15,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.39, -3.11 [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 02 Aug 12 08:08:02 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.838d {+02h 59m 21s} (J2000)
POINT_DEC:       +13.755d {+13d 45' 18"} (J2000)
ROLL:            73.278d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28938.57 SOD {08:02:18.57} UT,   87.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     365587348
X_OFFSET:        892 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1052
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00529486000msuni0096.fits
SUN_POSTN:       132.89d {+08h 51m 32s}  +17.62d {+17d 37' 20"}
SUN_DIST:         83.88 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.99d {+20h 55m 57s}  -12.38d {-12d 22' 35"}
MOON_DIST:        93.90 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.15,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.39, -3.11 [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 02 Aug 12 08:08:09 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     529486,   Seg_Num: 0
GRB_RA:           44.8412d {+02h 59m 21.88s} (J2000),
                  45.0146d {+03h 00m 03.50s} (current),
                  44.1532d {+02h 56m 36.77s} (1950)
GRB_DEC:         +13.7678d {+13d 46' 04.0"} (J2000),
                 +13.8174d {+13d 49' 02.6"} (current),
                 +13.5692d {+13d 34' 09.1"} (1950)
GRB_ERROR:       3.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28971.00 SOD {08:02:51.00} UT,   119.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       132.89d {+08h 51m 32s}  +17.62d {+17d 37' 20"}
SUN_DIST:         83.88 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      313.99d {+20h 55m 58s}  -12.38d {-12d 22' 34"}
MOON_DIST:        93.91 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.66 [deg] galactic lon,lat of the burst
ECL_COORDS:       46.39, -3.10 [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 0.58% < P(seren) < 1.1%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:13:42 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.756d {+13d 45' 23"} (J2000)
POINT_ROLL:      73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29151.51 SOD {08:05:51.51} UT,   299.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.811
N_STARS:         27
X_OFFSET:        333 [pixels]
Y_OFFSET:        288 [pixels]
X_MAX:           1772 [pixels]
Y_MAX:           1727 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    6
SL_URL:          sw00529486000msufc0299.fits
SUN_POSTN:       132.89d {+08h 51m 33s}  +17.62d {+17d 37' 17"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.04d {+20h 56m 10s}  -12.36d {-12d 21' 35"}
MOON_DIST:        93.85 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:14:04 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.756d {+13d 45' 23"} (J2000)
POINT_ROLL:      73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29151.51 SOD {08:05:51.51} UT,   299.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.811
N_STARS:         27
X_OFFSET:        333 [pixels]
Y_OFFSET:        288 [pixels]
X_MAX:           1772 [pixels]
Y_MAX:           1727 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    6
SL_URL:          sw00529486000msufc0299.fits
SUN_POSTN:       132.89d {+08h 51m 33s}  +17.62d {+17d 37' 16"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.05d {+20h 56m 11s}  -12.36d {-12d 21' 31"}
MOON_DIST:        93.84 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [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 02 Aug 12 08:14:51 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.756d {+13d 45' 23"} (J2000)
ROLL:            73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29151.51 SOD {08:05:51.51} UT,   299.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     365587561
X_OFFSET:        892 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1052
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00529486000msuni0309.fits
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 16"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.05d {+20h 56m 13s}  -12.36d {-12d 21' 23"}
MOON_DIST:        93.83 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [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 02 Aug 12 08:15:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.756d {+13d 45' 23"} (J2000)
ROLL:            73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29151.51 SOD {08:05:51.51} UT,   299.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     365587561
X_OFFSET:        892 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1052
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00529486000msuni0309.fits
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 16"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.06d {+20h 56m 13s}  -12.36d {-12d 21' 20"}
MOON_DIST:        93.83 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [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 02 Aug 12 08:16:10 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     529486,   Seg_Num: 0
GRB_RA:           44.8423d {+02h 59m 22.15s} (J2000),
                  45.0157d {+03h 00m 03.76s} (current),
                  44.1543d {+02h 56m 37.03s} (1950)
GRB_DEC:         +13.7687d {+13d 46' 07.3"} (J2000),
                 +13.8183d {+13d 49' 05.9"} (current),
                 +13.5701d {+13d 34' 12.4"} (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:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  28971.00 SOD {08:02:51.00} UT,   119.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 15"}
SUN_DIST:         83.88 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.07d {+20h 56m 16s}  -12.35d {-12d 21' 09"}
MOON_DIST:        93.83 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.66 [deg] galactic lon,lat of the burst
ECL_COORDS:       46.39, -3.10 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:17:44 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.757d {+13d 45' 23"} (J2000)
POINT_ROLL:      73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29729.42 SOD {08:15:29.42} UT,   877.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        0.046
N_STARS:         10
X_OFFSET:        333 [pixels]
Y_OFFSET:        288 [pixels]
X_MAX:           1772 [pixels]
Y_MAX:           1727 [pixels]
DET_THRESH:      3
PHOTO_THRESH:    2
SL_URL:          sw00529486000msufc0877.fits
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 14"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.08d {+20h 56m 19s}  -12.35d {-12d 20' 53"}
MOON_DIST:        93.81 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Aug 12 08:18:48 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.757d {+13d 45' 23"} (J2000)
ROLL:            73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29729.42 SOD {08:15:29.42} UT,   877.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     365588138
X_OFFSET:        892 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1052
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00529486000msuni0887.fits
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 13"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.09d {+20h 56m 22s}  -12.35d {-12d 20' 42"}
MOON_DIST:        93.80 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [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 02 Aug 12 08:18:19 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.757d {+13d 45' 23"} (J2000)
POINT_ROLL:      73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29729.42 SOD {08:15:29.42} UT,   877.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        0.046
N_STARS:         10
X_OFFSET:        333 [pixels]
Y_OFFSET:        288 [pixels]
X_MAX:           1772 [pixels]
Y_MAX:           1727 [pixels]
DET_THRESH:      3
PHOTO_THRESH:    2
SL_URL:          sw00529486000msufc0877.fits
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 14"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.09d {+20h 56m 21s}  -12.35d {-12d 20' 47"}
MOON_DIST:        93.80 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [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 Circular #13555
S. T. Holland (STScI), W. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester), P. A. Evans (U Leicester), C. Guidorzi (U Ferrara), K. L. Page (U Leicester), D. M. Palmer (LANL), J. L. Racusin (NASA/GSFC) and T. Sakamoto (NASA/UMBC) report on behalf of the Swift Team:
At 08:00:51 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 120802A (trigger=529486). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 44.849, +13.757 which is
```
   RA(J2000) = 02h 59m 24s
   Dec(J2000) = +13d 45' 26"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows two overlapping FRED peaks with a duration of about 20 sec. The peak count rate was ~3500 counts/sec (15-350 keV), at ~8 sec after the trigger.
The XRT began observing the field at 08:02:16.3 UT, 84.8 seconds after the BAT trigger. Using promptly downlinked data we find a fading, uncatalogued X-ray source located at RA, Dec 44.84120, 13.76787 which is equivalent to:
```
   RA(J2000)  = 02h 59m 21.89s
   Dec(J2000) = +13d 46' 04.3"
```
with an uncertainty of 3.7 arcseconds (radius, 90% containment). This location is 47 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.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 9.65 x 10^20 cm^-2 (Kalberla et al. 2005).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 86 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 0.15.
Burst Advocate for this burst is S. T. Holland (sholland AT stsci.edu). 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 02 Aug 12 08:19:05 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     529486,   Seg_Num: 0
POINT_RA:         44.835d {+02h 59m 20s} (J2000)
POINT_DEC:       +13.757d {+13d 45' 23"} (J2000)
ROLL:            73.277d
IMG_START_DATE:  16141 TJD;   215 DOY;   12/08/02
IMG_START_TIME:  29729.42 SOD {08:15:29.42} UT,   877.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     365588138
X_OFFSET:        892 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1052
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00529486000msuni0887.fits
SUN_POSTN:       132.89d {+08h 51m 34s}  +17.62d {+17d 37' 13"}
SUN_DIST:         83.89 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      314.09d {+20h 56m 22s}  -12.34d {-12d 20' 39"}
MOON_DIST:        93.79 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      164.14,-38.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       46.38, -3.11 [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:        If you have elected to receive attachments:  
COMMENTS:        The uvot_catalog_image.fits.gz file does not exist; skipping the attachment.

GCN Circular #13556
L. Elenin (KIAM), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 120802A (Holland et al., GCN 13555) with 0.45-m telescope =CFf ISON-NM observatory starting on Aug. 02 (UT) 08:13:18, i.e. 12.5 minutes after burst trigger. We took several unfiltered images of 30 s exposure. We do not detect any source within XRT error circle (Holland et al., GCN 13555) in any co-added frames. The preliminary photometry of co-added frames is based on the USNO-B1.0 (R2) nearby stars:
```
T_start,     Exposure, OT,  Upper Limit (3sigma)
(UT)           (s)

08:13:18    10x30       n/d    17.5
08:13:18    20x30       n/d    17.7
08:13:18    29x30       n/d    18.1
```
Observations are continued.
GCN Circular #13557
H. Levato and C. Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
C. Mallamaci, C. Lopez and F. Podest Observatorio Astronomico Felix Aguilar (OAFA)
E. Gorbovskoy, V. Lipunov, V. Kornilov, D. Denisenko, A. Kuznetsov, D. Kuvshinov, A. Belinski, N. Tyurina, N. Shatskiy, P. Balanutsa, D. Zimnukhov, V.V. Chazov Lomonosov Moscow State University, Sternberg Astronomical Institute
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V. Sennik Kislovodsk Solar Station of the Pulkovo Observatory
K. Ivanov, S. Yazev, N.M. Budnev, O. Gres, O. Chuvalaev, V.A. Poleshchuk Irkutsk State University
V. Yurkov, Yu. Sergienko, D. Varda, E. Sinyakov Blagoveschensk Educational State University, Blagoveschensk
V. Krushinski, I. Zalozhnich, A. Popov, A. Bourdanov, A. Punanova Ural Federal University
MASTER-ICATE robotic very wide field cameras (FOV=2x384 square degrees, D=72mm, f/1.2, 1 pix = 22 arcsec, http://observ.pereplet.ru) located in Argentina (Observatorio Astronomico Felix Aguilar, http://93.180.27.230:8080/) were pointed to the GRB120802A (Holland et al, GCN 13555) 21 s after notice time and 43 s after GRB time at 2012-08-02 08:01:34 UT under full Moon. We haven`t found optical transient within SWIFT error-box our first (5 s exposure) set. The 5-sigma upper limit has been about 10.6 mag The 5-sigma upper limit on coadd first 42 images is about 12.0 mag.
Our cameras are continuously imaging the sky with 5 sec exposures.
This message can be cited.
GCN Circular #13558
P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team.
Using 539 s of XRT Photon Counting mode data and 1 UVOT images for GRB 120802A, 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 = 44.84185, +13.76805 which is equivalent to:
```
RA (J2000): 02h 59m 22.04s
Dec (J2000): +13d 46' 05.0"
```
with an uncertainty of 2.8 arcsec (radius, 90% confidence).
This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177).
This circular was automatically generated, and is an official product of the Swift-XRT team.
GCN Circular #13559
M. Stamatikos (OSU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), S. T. Holland (STScI), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team):
Using the data set from T-239 to T+963 sec from recent telemetry downlinks, we report further analysis of BAT GRB 120802A (trigger #529486) (Holland, et al., GCN Circ. 13555). The BAT ground-calculated position is RA, Dec = 44.833, 13.762 deg, which is
```
   RA(J2000)  =  02h 59m 20.0s 
   Dec(J2000) = +13d 45' 43.1" 
```
with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 56%.
The mask-weighted light curve shows a small precursor peak from ~T-40 to ~T-33 sec, then a fast rise at ~T-2 sec, peaking at ~T+2 sec and decaying exposnentially with a second peak peaking at ~T+8 sec and ending at ~T+45 sec. T90 (15-350 keV) is 50 +- 31 sec (estimated error including systematics).
The time-averaged spectrum from T-35.68 to T+28.02 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 1.21 +- 0.47, and Epeak of 57.2 +- 19.4 keV (chi squared 52.25 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 1.9 +- 0.3 x 10^-6 erg/cm2 and the 1-sec peak flux measured from T+7.94 sec in the 15-150 keV band is 3.0 +- 0.2 ph/cm2/sec. A fit to a simple power law gives a photon index of 1.84 +- 0.10 (chi squared 58.45 for 57 d.o.f.). 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/529486/BA/
GCN Circular #13561
A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), J. Richard (CRAL, U. Lyon), P. Moller (ESO), C. de Breuck (ESO), C. Agurto (ESO) and F. Azagra (ESO) report on behalf of a larger collaboration:
We have observed the field of GRB 120802A (Holland et al. GCN 13555) using APEX/LABOCA (Chajnantor, Chile) in the 870um band (345 GHz) under poor weather conditions (PWV starting at 2.0 mm and going down to 1.4 mm at the end of the observation). Data acquisition started at 08:58 UT (58 min after the burst) and lasted for 3.5hr (2.7hr on source). In a preliminary analysis we do not detect any source at the GRB position, where we have an r.m.s. of 4mJy/beam (3-sigma limit of 12 mJy/beam).
GCN Circular #13562
N. R. Tanvir (U. Leicester), D. Fox (Penn State), J. Fynbo (DARK) and C. Trujllo (Gemini) report on behalf of a larger collaboration:
We observed the afterglow of GRB 120802A (Holland et al. GCN 13555) using the GMOS-N spectrograph on Gemini-North, covering a spectral range of about 5900A to 10000A.
Observations began at 2012-8-2 13:30 UT, about 5:30 hr post-burst. The spectrum reveals many absorption lines including S II (1250), Si II (1260/1304/1526/1808), O I (1304), C II (1334), Si IV (1394/1403), C IV (1548/1551), Fe II (1608), Al II (1670) at a common redshift of z=3.796, which we believe is most likely the redshift of this burst. We no clear evidence of any fine-structure lines.
Note, this redshift is consistent with the absence of a strong Lyman-alpha line or Lyman-alpha forest since they would just fall off the blue end of our spectrum.
We also detect an intervening system at z=2.38, based on Fe II and Mg II features.
GCN Circular #13563
J.A. Kennea (PSU), M.C. Stroh (PSU), D.N. Burrows (PSU), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), C. Pagani (U. Leicester), V. Mangano (INAF-IASFPA), A. Melandri (INAF-OAB), B. Sbarufatti (INAF-OAB/PSU) and S.T. Holland report on behalf of the Swift-XRT team:
We have analysed 7.0 ks of XRT data for GRB 120802A (Holland et al. GCN Circ. 13555), from 88 s to 17.6 ks after the BAT trigger. The data comprise 22 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Evans et al. (GCN. Circ 13558).
The light curve can be modelled with an initial power-law decay with an index of alpha=2.7 (+/-0.4), followed by a break at T+270 s to an alpha of 0.35 (+/-0.05).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.10 (+0.21, -0.20). The best-fitting absorption column is 1.5 (+/-0.5) x 10^21 cm^-2, in excess of the Galactic value of 9.6 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 3.6 x 10^-11 (5.1 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     1.5 (+/-0.5) x 10^21 cm^-2
Galactic foreground: 9.6 x 10^20 cm^-2
Excess significance: 1.8 sigma
Photon index:	     2.10 (+0.21, -0.20)
```
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00529486.
This circular is an official product of the Swift-XRT team.
GCN Circular #13564
T. Sakamoto (UMBC/GSFC), D. Donato (ORAU/GSFC), N. Gehrels (GSFC), T. Okajima (GSFC), Y. Urata (NCU)
We observed the field of GRB 120802A detected by Swift (trigger #529486; Holland et al., GCN Circ. 13555) with the 14-inch Goddard Robotic Telescope (GRT) located at the Goddard Geophysical and Astronomical Observatory (http://cddisa.gsfc.nasa.gov/ggao/).
30 images of 60 sec exposures were taken in the R filter starting from August 2 08:37:05 (UT) about 36 minues after the trigger and stopped on August 2 09:08:49 (UT). We do not detect the optical afterglow both in the individual images and the stacked image, which only combined 27 good quality images, inside the enhanced XRT position (Evans et al., GCN #13558). The estimated five sigma upper limit of the combined image (total exposure of 1620 sec) is ~17.2 mag using the USNO-B1 catalog.
GCN Circular #13578
T. Laskar, A. Zauderer and E. Berger (Harvard) report:
"We observed the position of GRB 120802A (Holland et al. GCN 13555) with the EVLA beginning on 2012 Aug 03.65 UT (1.32 days after the burst). No significant radio emission is detected at the enhanced Swift-XRT position (Evans et al. GCN 13558) to three-sigma upper limits of 39 uJy and 60 uJy, at 6 GHz and 22 GHz, respectively."

GCN Circular #13593
S. T. Holland (STScI) reports on behalf of the Swift/UVOT team:
The Swift/UVOT observed the field of GRB 120802A starting 70 s after the BAT trigger (Holland et al., 2012, GCNC 13555). Settled observations started at 87 s. We do not detect any source inside the UVOT-enhanced XRT error circle (Evans et al., 2012, GCNC 13558). Preliminary magnitudes 3-sigma upper limits at this location for the finding charts (FC) and the co-added images, are

Filter       TSTART   TSTOP   Exp Time    3-sigma UL
----------------------------------------------------
white (FC)      87      237        147         >20.8
    u (FC)     300      550        246         >19.9
----------------------------------------------------
    v          630   16,594       1317         >20.5
    b          555     6625        332         >20.4
    u          300     6548        658         >20.5
 uvw1          678   17,567        492         >20.4
 uvm2         4504   17,499       1279         >21.2
 uvw2         4095   11,737       1279         >21.4
white           87   10,731       1268         >22.1
----------------------------------------------------

The quoted magnitudes and upper limits have not been corrected for the Galactic extinction along the line of sight to this burst of E_{B-V} = 0.14 mag (Schlafly et al. 2011, ApJS, 737, 103).

GCN Circular #13609
L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 120802A (Holland et al., GCN 13555) with 0.45-m telescope ?f ISON-NM observatory starting on Aug. 02 (UT) 08:13:18 (Elenin et al., GCN 13556). We took several unfiltered images of 30 s and 60 s exposures starting on Aug. 02, (UT) 08:13:18. At the edge of the enhanced by UVOT field astrometry XRT error circle (http://www.swift.ac.uk/xrt_positions/529486) we marginally detect a source in coordinates 02:59:22.35 +13:46:07.2 (uncertainty of about 0.3 arsces in both coordinates). A preliminary photometry of co-added frames is based on the USNO-B1.0 (R2) nearby stars is following:
```
T_start,     T0+,           Exposure, Object,
(UT)           mid, d         (s)

08:13:18    0.06905   6360          21.2+/-0.6
```
We suggest the source might be an optical afterglow of GRB 120802A, however at that time we cannot confirm the fading origin of the source.
GCN Report 380.1
GCN_Report 380.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_380_1.pdf by S.T. Holland at STScI titled: "Swift Observations of GRB 120802A"
GCN Circular #13712
A. Volnova (SAI MSU/IKI), L. Elenin (KIAM), V. Rumyantsev (CrAO), A.Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 120802A (Holland et al., GCN 13555) with Shajn telescope of CrAO starting on Aug. 15 (UT) 23:00:26. We took several images in R-filter under mean seeing of 2.8". In a stacked image we do not detect the object suggested as optical counterpart of GRB 120802A (Elenin et al., GCN 13609) up to 22.5 m. Thus we can confirm the object reported in (Elenin et al., GCN 13609) is most probably is an afterglow of GRB 120802A. A photometry of the filed is based on nearby USNO-B1.0 (R2) stars:
```
   T0+,    Filter      Exposure, OT,  UL (3 sigma)
  mid, d                  (s)

13.625    R           3540          n/d         22.5
```
We are grateful for CCD PL4240 provided by ISON for Shajn telescope.

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Jochen Greiner, last update: 04-Sep-2012 [Disclaimer]