Gamma-ray Burst 100704A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:35:22 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      48
TRIGGER_NUM:     299907308
GRB_RA:          139.633d {+09h 18m 32s} (J2000),
                 139.751d {+09h 19m 00s} (current),
                 139.071d {+09h 16m 17s} (1950)
GRB_DEC:         -23.517d {-23d 30' 59"} (J2000),
                 -23.561d {-23d 33' 39"} (current),
                 -23.305d {-23d 18' 18"} (1950)
GRB_ERROR:       11.15 [deg radius, statistical plus systematic]
GRB_INTEN:       303 [cnts/sec]
DATA_SIGNIF:     13.40 [sigma]
INTEG_TIME:      1.024 [sec]
GRB_DATE:        15381 TJD;   185 DOY;   10/07/04
GRB_TIME:        12906.10 SOD {03:35:06.10} UT
GRB_PHI:          70.00 [deg]
GRB_THETA:        60.00 [deg]
DATA_TIME_SCALE: 1.0240 [sec]
HARD_RATIO:      0.40
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      95%  GRB
2nd_MOST_LIKELY:   4%  Generic Transient
DETECTORS:       1,0,0, 0,1,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       103.13d {+06h 52m 30s}  +22.89d {+22d 53' 19"}
SUN_DIST:         58.52 [deg]   Sun_angle= -2.4 [hr] (East of Sun)
MOON_POSTN:        4.14d {+00h 16m 33s}   +7.56d {+07d 33' 51"}
MOON_DIST:       134.59 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      252.43, 17.85 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      151.07,-37.04 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.
COMMENTS:        This trigger occurred at longitude,latitude = 172.02,-15.97 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:35:28 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     426722,   Seg_Num: 0
GRB_RA:          133.636d {+08h 54m 33s} (J2000),
                 133.752d {+08h 55m 00s} (current),
                 133.086d {+08h 52m 21s} (1950)
GRB_DEC:         -24.216d {-24d 12' 55"} (J2000),
                 -24.256d {-24d 15' 21"} (current),
                 -24.024d {-24d 01' 27"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       7078 [cnts]    Image_Peak=846 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       24768 [cnts]
BKG_TIME:        12890.04 SOD {03:34:50.04} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15381 TJD;   185 DOY;   10/07/04
GRB_TIME:        12908.73 SOD {03:35:08.73} UT
GRB_PHI:         -157.53 [deg]
GRB_THETA:        29.95 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     65.12 [sigma]
IMAGE_SIGNIF:    19.73 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +6  +0  +0 -56  +0 
SUN_POSTN:       103.13d {+06h 52m 30s}  +22.89d {+22d 53' 19"}
SUN_DIST:         55.74 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.14d {+00h 16m 33s}   +7.56d {+07d 33' 52"}
MOON_DIST:       129.08 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.34, 13.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      144.89,-39.71 [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 = 149.09,10.26 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:35:40 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      57
TRIGGER_NUM:     299907308
GRB_RA:          138.500d {+09h 14m 00s} (J2000),
                 138.619d {+09h 14m 29s} (current),
                 137.934d {+09h 11m 44s} (1950)
GRB_DEC:         -21.860d {-21d 51' 35"} (J2000),
                 -21.904d {-21d 54' 13"} (current),
                 -21.652d {-21d 39' 08"} (1950)
GRB_ERROR:       2.92 [deg radius, statistical only]
DATA_SIGNIF:     31.80 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        15381 TJD;   185 DOY;   10/07/04
GRB_TIME:        12906.10 SOD {03:35:06.10} UT
GRB_PHI:          68.00 [deg]
GRB_THETA:        59.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   413 (Gnd S/W Version number)
SUN_POSTN:       103.13d {+06h 52m 30s}  +22.89d {+22d 53' 19"}
SUN_DIST:         56.57 [deg]   Sun_angle= -2.4 [hr] (East of Sun)
MOON_POSTN:        4.14d {+00h 16m 33s}   +7.57d {+07d 33' 55"}
MOON_DIST:       133.91 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      250.39, 18.15 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      149.09,-35.89 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:35:32 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      58
TRIGGER_NUM:     299907308
GRB_RA:          152.417d {+10h 09m 40s} (J2000),
                 152.545d {+10h 10m 11s} (current),
                 151.804d {+10h 07m 13s} (1950)
GRB_DEC:         -12.183d {-12d 10' 59"} (J2000),
                 -12.235d {-12d 14' 06"} (current),
                 -11.937d {-11d 56' 13"} (1950)
GRB_ERROR:       6.43 [deg radius, statistical plus systematic]
GRB_INTEN:       324 [cnts/sec]
DATA_SIGNIF:     31.30 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        15381 TJD;   185 DOY;   10/07/04
GRB_TIME:        12906.10 SOD {03:35:06.10} UT
GRB_PHI:          79.00 [deg]
GRB_THETA:        45.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      0.49
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      95%  GRB
2nd_MOST_LIKELY:   4%  Generic Transient
DETECTORS:       1,0,0, 0,1,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       103.13d {+06h 52m 30s}  +22.89d {+22d 53' 19"}
SUN_DIST:         59.78 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:        4.14d {+00h 16m 33s}   +7.56d {+07d 33' 53"}
MOON_DIST:       148.55 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      252.66, 34.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      159.07,-21.94 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 172.02,-15.97 [deg].

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:35:44 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      68
TRIGGER_NUM:     299907308
GRB_RA:          135.340d {+09h 01m 22s} (J2000),
                 135.459d {+09h 01m 50s} (current),
                 134.771d {+08h 59m 05s} (1950)
GRB_DEC:         -20.180d {-20d 10' 47"} (J2000),
                 -20.222d {-20d 13' 17"} (current),
                 -19.983d {-19d 58' 58"} (1950)
GRB_ERROR:       2.37 [deg radius, statistical only]
DATA_SIGNIF:     32.90 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        15381 TJD;   185 DOY;   10/07/04
GRB_TIME:        12906.10 SOD {03:35:06.10} UT
GRB_PHI:          64.00 [deg]
GRB_THETA:        59.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   413 (Gnd S/W Version number)
SUN_POSTN:       103.13d {+06h 52m 30s}  +22.89d {+22d 53' 19"}
SUN_DIST:         53.42 [deg]   Sun_angle= -2.2 [hr] (East of Sun)
MOON_POSTN:        4.14d {+00h 16m 33s}   +7.57d {+07d 33' 56"}
MOON_DIST:       131.28 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      247.07, 16.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      144.96,-35.38 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:37:05 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     426722,   Seg_Num: 0
GRB_RA:          133.6432d {+08h 54m 34.36s} (J2000),
                 133.7588d {+08h 55m 02.10s} (current),
                 133.0932d {+08h 52m 22.37s} (1950)
GRB_DEC:         -24.2027d {-24d 12' 09.7"} (J2000),
                 -24.2431d {-24d 14' 35.1"} (current),
                 -24.0115d {-24d 00' 41.4"} (1950)
GRB_ERROR:       4.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       3.53e-09 [erg/cm2/sec]
GRB_SIGNIF:      10.95 [sigma]
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  12994.93 SOD {03:36:34.93} UT,   86.2 [sec] since BAT Trigger Time
TAM[0-3]:        327.67 237.24 261.48 243.41
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 19"}
SUN_DIST:         55.73 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.15d {+00h 16m 36s}   +7.57d {+07d 34' 12"}
MOON_DIST:       129.08 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.33, 13.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      144.89,-39.69 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.87 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:37:15 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     426722,   Seg_Num: 0
GRB_RA:          133.6432d {+08h 54m 34.3s} (J2000),
                 133.7588d {+08h 55m 02.1s} (current),
                 133.0932d {+08h 52m 22.3s} (1950)
GRB_DEC:         -24.2027d {-24d 12' 09.7"} (J2000),
                 -24.2431d {-24d 14' 35.1"} (current),
                 -24.0115d {-24d 00' 41.4"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       120 [cnts]
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  12994.93 SOD {03:36:34.93} UT,   86.2 [sec] since BAT Trigger Time
CENTROID_X:      257.27,  raw= 257  [pixels]
CENTROID_Y:      286.33,  raw= 286  [pixels]
ROLL:            325.50 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -27.49
GRB_POS_XRT_Z:   -106.13
IMAGE_URL:       sw00426722000msxps_rw.img
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 19"}
SUN_DIST:         55.73 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.15d {+00h 16m 36s}   +7.57d {+07d 34' 14"}
MOON_DIST:       129.07 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.33, 13.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      144.89,-39.69 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:37:24 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     426722,   Seg_Num: 0
GRB_RA:          133.6432d {+08h 54m 34.3s} (J2000),
                 133.7588d {+08h 55m 02.1s} (current),
                 133.0932d {+08h 52m 22.3s} (1950)
GRB_DEC:         -24.2027d {-24d 12' 09.7"} (J2000),
                 -24.2431d {-24d 14' 35.1"} (current),
                 -24.0115d {-24d 00' 41.4"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       120 [cnts]
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  12994.93 SOD {03:36:34.93} UT,   86.2 [sec] since BAT Trigger Time
CENTROID_X:      257.27,  raw= 257  [pixels]
CENTROID_Y:      286.33,  raw= 286  [pixels]
ROLL:            325.50 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -27.49
GRB_POS_XRT_Z:   -106.13
IMAGE_URL:       sw00426722000msxps_rw.img
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 19"}
SUN_DIST:         55.73 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.15d {+00h 16m 36s}   +7.57d {+07d 34' 16"}
MOON_DIST:       129.07 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.33, 13.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      144.89,-39.69 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:39:02 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     426722,   Seg_Num: 0
GRB_RA:          133.636d {+08h 54m 33s} (J2000),
                 133.752d {+08h 55m 00s} (current),
                 133.086d {+08h 52m 21s} (1950)
GRB_DEC:         -24.216d {-24d 12' 55"} (J2000),
                 -24.256d {-24d 15' 21"} (current),
                 -24.024d {-24d 01' 27"} (1950)
GRB_DATE:        15381 TJD;   185 DOY;   10/07/04
GRB_TIME:        12908.73 SOD {03:35:08.73} UT
TRIGGER_INDEX:   146
GRB_PHI:         -157.53 [deg]
GRB_THETA:        29.95 [deg]
DELTA_TIME:      52.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     65.12 [sigma]
IMAGE_SIGNIF:    19.73 [sigma]
LC_URL:          sw00426722000msb.lc
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 19"}
SUN_DIST:         55.74 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.16d {+00h 16m 40s}   +7.58d {+07d 34' 36"}
MOON_DIST:       129.06 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.34, 13.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      144.89,-39.71 [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 = 149.09,10.26 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:39:49 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.654d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.231d {-24d 13' 50"} (J2000)
POINT_ROLL:      325.497d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13004.82 SOD {03:36:44.82} UT,   96.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.080
N_STARS:         129
X_OFFSET:        600 [pixels]
Y_OFFSET:        440 [pixels]
X_MAX:           1559 [pixels]
Y_MAX:           1399 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    9
SL_URL:          sw00426722000msufc0096.fits
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 18"}
SUN_DIST:         55.76 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.17d {+00h 16m 41s}   +7.58d {+07d 34' 45"}
MOON_DIST:       129.07 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:40:19 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.654d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.231d {-24d 13' 50"} (J2000)
POINT_ROLL:      325.497d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13004.82 SOD {03:36:44.82} UT,   96.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.080
N_STARS:         129
X_OFFSET:        600 [pixels]
Y_OFFSET:        440 [pixels]
X_MAX:           1559 [pixels]
Y_MAX:           1399 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    9
SL_URL:          sw00426722000msufc0096.fits
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 18"}
SUN_DIST:         55.76 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.17d {+00h 16m 42s}   +7.58d {+07d 34' 51"}
MOON_DIST:       129.06 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:39:49 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.654d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.231d {-24d 13' 50"} (J2000)
POINT_ROLL:      325.497d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13004.82 SOD {03:36:44.82} UT,   96.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.080
N_STARS:         129
X_OFFSET:        600 [pixels]
Y_OFFSET:        440 [pixels]
X_MAX:           1559 [pixels]
Y_MAX:           1399 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    9
SL_URL:          sw00426722000msufc0096.fits
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 18"}
SUN_DIST:         55.76 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.17d {+00h 16m 41s}   +7.58d {+07d 34' 45"}
MOON_DIST:       129.07 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:41:14 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.654d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.231d {-24d 13' 50"} (J2000)
ROLL:            325.497d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13004.82 SOD {03:36:44.82} UT,   96.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     299907410
X_OFFSET:        1004 [pixels]
Y_OFFSET:        814 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1164
Y_GRB_POS:       974
BINNING_INDEX:   1
IM_URL:          sw00426722000msuni0102.fits
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 18"}
SUN_DIST:         55.76 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.18d {+00h 16m 44s}   +7.58d {+07d 35' 03"}
MOON_DIST:       129.06 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:41:33 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.654d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.231d {-24d 13' 50"} (J2000)
ROLL:            325.497d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13004.82 SOD {03:36:44.82} UT,   96.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     299907410
X_OFFSET:        1004 [pixels]
Y_OFFSET:        814 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1164
Y_GRB_POS:       974
BINNING_INDEX:   1
IM_URL:          sw00426722000msuni0102.fits
SUN_POSTN:       103.13d {+06h 52m 31s}  +22.89d {+22d 53' 18"}
SUN_DIST:         55.76 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.18d {+00h 16m 44s}   +7.59d {+07d 35' 06"}
MOON_DIST:       129.06 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:47:26 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 48"} (J2000)
POINT_ROLL:      325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13217.03 SOD {03:40:17.03} UT,   308.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.447
N_STARS:         72
X_OFFSET:        684 [pixels]
Y_OFFSET:        494 [pixels]
X_MAX:           1643 [pixels]
Y_MAX:           1453 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00426722000msufc0308.fits
SUN_POSTN:       103.14d {+06h 52m 33s}  +22.89d {+22d 53' 17"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.23d {+00h 16m 55s}   +7.60d {+07d 36' 18"}
MOON_DIST:       129.03 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:47:26 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 48"} (J2000)
POINT_ROLL:      325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13217.03 SOD {03:40:17.03} UT,   308.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.447
N_STARS:         72
X_OFFSET:        684 [pixels]
Y_OFFSET:        494 [pixels]
X_MAX:           1643 [pixels]
Y_MAX:           1453 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00426722000msufc0308.fits
SUN_POSTN:       103.14d {+06h 52m 33s}  +22.89d {+22d 53' 17"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.23d {+00h 16m 55s}   +7.60d {+07d 36' 18"}
MOON_DIST:       129.03 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:47:50 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 48"} (J2000)
POINT_ROLL:      325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13217.03 SOD {03:40:17.03} UT,   308.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.447
N_STARS:         72
X_OFFSET:        684 [pixels]
Y_OFFSET:        494 [pixels]
X_MAX:           1643 [pixels]
Y_MAX:           1453 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00426722000msufc0308.fits
SUN_POSTN:       103.14d {+06h 52m 33s}  +22.89d {+22d 53' 17"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.23d {+00h 16m 56s}   +7.61d {+07d 36' 23"}
MOON_DIST:       129.02 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:48:48 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 48"} (J2000)
ROLL:            325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13217.03 SOD {03:40:17.03} UT,   308.3 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     299907622
X_OFFSET:        1004 [pixels]
Y_OFFSET:        814 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1164
Y_GRB_POS:       974
BINNING_INDEX:   1
IM_URL:          sw00426722000msuni0314.fits
SUN_POSTN:       103.14d {+06h 52m 33s}  +22.89d {+22d 53' 17"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.24d {+00h 16m 58s}   +7.61d {+07d 36' 35"}
MOON_DIST:       129.02 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:49:08 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 48"} (J2000)
ROLL:            325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13217.03 SOD {03:40:17.03} UT,   308.3 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     299907622
X_OFFSET:        1004 [pixels]
Y_OFFSET:        814 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1164
Y_GRB_POS:       974
BINNING_INDEX:   1
IM_URL:          sw00426722000msuni0314.fits
SUN_POSTN:       103.14d {+06h 52m 33s}  +22.89d {+22d 53' 16"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.24d {+00h 16m 58s}   +7.61d {+07d 36' 39"}
MOON_DIST:       129.02 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #10929
D. Grupe (PSU), S. D. Barthelmy (GSFC), J. R. Cummings (NASA/UMBC), J. M. Gelbord (PSU), C. Gronwall (PSU), S. T. Holland (CRESST/USRA/GSFC), N. P. M. Kuin (UCL-MSSL), D. M. Palmer (LANL), M. H. Siegel (PSU) and T. N. Ukwatta (GSFC/GWU) report on behalf of the Swift Team:
At 03:35:08 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 100704A (trigger=426722). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 133.636, -24.216 which is
```
   RA(J2000) = 08h 54m 33s
   Dec(J2000) = -24d 12' 55"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a bright FRED peak structure with a duration of about 30 sec, followed by further activity beginning at T+140 s. The peak count rate was ~7000 counts/sec (15-350 keV), at ~1 sec after the trigger.
The XRT began observing the field at 03:36:34.9 UT, 86.2 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source located at RA, Dec 133.64103, -24.20306 which is equivalent to:
```
   RA(J2000)  = 08h 54m 33.85s
   Dec(J2000) = -24d 12' 11.0"
```
with an uncertainty of 3.7 arcseconds (radius, 90% containment). This location is 48 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 in excess of the Galactic value (1.05e+21 cm^-2, Kalberla et al. 2005), with an excess column of 2.5 (+1.43/-1.30) x 10^21 cm^-2 (90% confidence).
The initial flux in the 2.5 s image was 3.53e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 96 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 0.17.
Burst Advocate for this burst is D. Grupe (grupe AT astro.psu.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:     Sun 04 Jul 10 03:54:43 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 49"} (J2000)
POINT_ROLL:      325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13771.16 SOD {03:49:31.16} UT,   862.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.924
N_STARS:         190
X_OFFSET:        444 [pixels]
Y_OFFSET:        254 [pixels]
X_MAX:           1883 [pixels]
Y_MAX:           1693 [pixels]
DET_THRESH:      19
PHOTO_THRESH:    11
SL_URL:          sw00426722000msufc0862.fits
SUN_POSTN:       103.14d {+06h 52m 34s}  +22.89d {+22d 53' 15"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.29d {+00h 17m 08s}   +7.63d {+07d 37' 47"}
MOON_DIST:       128.99 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:54:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 49"} (J2000)
POINT_ROLL:      325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13771.16 SOD {03:49:31.16} UT,   862.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.924
N_STARS:         190
X_OFFSET:        444 [pixels]
Y_OFFSET:        254 [pixels]
X_MAX:           1883 [pixels]
Y_MAX:           1693 [pixels]
DET_THRESH:      19
PHOTO_THRESH:    11
SL_URL:          sw00426722000msufc0862.fits
SUN_POSTN:       103.14d {+06h 52m 34s}  +22.89d {+22d 53' 15"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.29d {+00h 17m 09s}   +7.63d {+07d 37' 49"}
MOON_DIST:       128.98 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:54:43 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 49"} (J2000)
POINT_ROLL:      325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13771.16 SOD {03:49:31.16} UT,   862.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.924
N_STARS:         190
X_OFFSET:        444 [pixels]
Y_OFFSET:        254 [pixels]
X_MAX:           1883 [pixels]
Y_MAX:           1693 [pixels]
DET_THRESH:      19
PHOTO_THRESH:    11
SL_URL:          sw00426722000msufc0862.fits
SUN_POSTN:       103.14d {+06h 52m 34s}  +22.89d {+22d 53' 15"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.29d {+00h 17m 08s}   +7.63d {+07d 37' 47"}
MOON_DIST:       128.99 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jul 10 03:56:00 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     426722,   Seg_Num: 0
GRB_RA:          133.6409d {+08h 54m 33.81s} (J2000),
                 133.7565d {+08h 55m 01.55s} (current),
                 133.0909d {+08h 52m 21.82s} (1950)
GRB_DEC:         -24.2027d {-24d 12' 09.7"} (J2000),
                 -24.2431d {-24d 14' 35.1"} (current),
                 -24.0115d {-24d 00' 41.5"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13308.00 SOD {03:41:48.00} UT,   399.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       103.14d {+06h 52m 34s}  +22.89d {+22d 53' 15"}
SUN_DIST:         55.72 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.30d {+00h 17m 11s}   +7.63d {+07d 38' 02"}
MOON_DIST:       128.97 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.33, 13.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      144.89,-39.69 [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:     Sun 04 Jul 10 03:56:26 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 49"} (J2000)
ROLL:            325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13771.16 SOD {03:49:31.16} UT,   862.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     299908177
X_OFFSET:        1003 [pixels]
Y_OFFSET:        813 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1163
Y_GRB_POS:       973
BINNING_INDEX:   1
IM_URL:          sw00426722000msuni0868.fits
SUN_POSTN:       103.14d {+06h 52m 34s}  +22.89d {+22d 53' 15"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.30d {+00h 17m 12s}   +7.64d {+07d 38' 08"}
MOON_DIST:       128.98 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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:     Sun 04 Jul 10 03:56:10 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     426722,   Seg_Num: 0
POINT_RA:        133.656d {+08h 54m 37s} (J2000)
POINT_DEC:       -24.230d {-24d 13' 49"} (J2000)
ROLL:            325.494d
IMG_START_DATE:  15381 TJD;   185 DOY;   10/07/04
IMG_START_TIME:  13771.16 SOD {03:49:31.16} UT,   862.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     299908177
X_OFFSET:        1003 [pixels]
Y_OFFSET:        813 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1163
Y_GRB_POS:       973
BINNING_INDEX:   1
IM_URL:          sw00426722000msuni0868.fits
SUN_POSTN:       103.14d {+06h 52m 34s}  +22.89d {+22d 53' 15"}
SUN_DIST:         55.75 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:        4.30d {+00h 17m 11s}   +7.63d {+07d 38' 04"}
MOON_DIST:       128.98 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      249.36, 13.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      144.92,-39.72 [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 Circular #10930
J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
Using 3449 s of XRT Photon Counting mode data and 7 UVOT images for GRB 100704A, 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 = 133.64132, -24.20269 which is equivalent to:
```
RA (J2000): 08h 54m 33.92s
Dec (J2000): -24d 12' 09.7"
```
with an uncertainty of 1.7 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 #10931
K. Omori, D. Suzuki, S. Kobara, H. Naito and T. Sako (STE Lab., Nagoya Univ.) on behalf of the MOA Collaboration report:
We searched for an optical afterglow of GRB100704A (GCN 10929, D. Grupe et al.) starting from 06:59:33 UT on 2010 July 4 (204 minutes after the burst) with the MOA-II 1.8m telescope at Mt. John observatory in New Zealand. In a single image of a 180 sec exposure with a wideband Red filter (center wavelength ~ 750nm and FWHM ~ 250nm), we did not find any object within the error circle of the Swift XRT source position (GCN 10930, J.P. Osborne et al.). A 3 sigma upper limit is set in the I magnitude at 22.0 mag.
This photometry was done by using the DoPHOT and calibrated against the USNO-B1.0 catalog stars, and not corrected for the Galactic extinction.
GCN Circular #10932
J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), D. Grupe (PSU), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), A. M. Parsons (GSFC), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team):
Using the data set from T-240 to T+962 sec from recent telemetry downlinks, we report further analysis of BAT GRB 100704A (trigger #426722) (Grupe, et al., GCN Circ. 10929). The BAT ground-calculated position is RA, Dec = 133.639, -24.202 deg, which is
```
   RA(J2000)  =  08h 54m 33.3s 
   Dec(J2000) = -24d 12' 08.0" 
```
with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 85%.
The mask-weighted light curve shows an initial very weak peak starting at ~T-70 sec and peaking at ~T-60 sec. Then comes the main peak starting at ~T-5 sec, peaking at ~T+1.5 sec, and ending at ~T+50 sec. That is followed by a small peak at ~T+100 sec, and then a larger peak from ~T+140 to ~T+210 sec. T90 (15-350 keV) is 197.5 +- 23.3 sec (estimated error including systematics).
The time-averaged spectrum from T-62.3 to T+202.3 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.73 +- 0.06. The fluence in the 15-150 keV band is 6.0 +- 0.2 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+0.76 sec in the 15-150 keV band is 4.3 +- 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/426722/BA/
GCN Circular #10933
S. McBreen (UCD/MPE) reports on behalf of the Fermi GBM Team:
"At 03:35:06.10 UT on 04 July 2010, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 100704A (trigger 299907308 / 100704149) which was also detected by the Swift-BAT (Grupe et al. 2010, GCN 10929). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 63 degrees.
The GBM light curve rises slowly before the trigger and consists of an initial pulse lasting about ~20 s followed a softer pulse beginning about T0+150 seconds. The burst has a duration (T90) of about 214 (+/- 6) s (50-300 keV).
The spectrum from T0-2.3 s to T0+20.2 s is well fit by a power law function with an exponential high energy cutoff. The power law index is -0.80 (+0.06/-0.06) and the cutoff energy, parameterized as Epeak, is 193.90 (+14.00/-12.10) keV (CSTAT for 781 for 607 d.o.f.).
The event fluence (10-1000 keV) in this time interval is (5.8 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+3.3 s in the 10-1000 keV band is 7.0 +/- 0.2 ph/s/cm^2.
A Band function fits the spectrum equally well (CSTAT 779 for 606 d.o.f.) with Epeak= 178.30 (+16.30/-17.50) keV, alpha = -0.76 (+0.08/-0.07) and beta = -2.53 (+0.29/-0.54) .
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN Circular #10934
N.P.M. Kuin (MSSL/UCL) and D. Grupe (PSU) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 100704 96 s after the BAT trigger (Grupe et al., GCN Circ. 10929). No optical afterglow consistent with the XRT position (Osborne et al., GCN Circ. 10930) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using a 3" aperture in the UVOT photometric system (Poole et al. 2008, MNRAS, 383, 627) for the first finding chart (FC) exposure and subsequent exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC            96          246          147         >21.0
u_FC               308          558          246         >20.2
white               96         6544          746         >21.8
v                  638         6955          471         >20.0
b                  564         6339          452         >21.1
u                  308         6132          678         >21.1
w1                 688         5927          255         >21.1
m2                 662         7075          387         >20.2
w2                 613         6750          471         >20.7
```
The values quoted above are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.17 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #10935
D. Grupe (PSU) reports on behalf of the Swift-XRT team:
We have analyzed 6162 s of XRT data for GRB 100704A (Grupe et al. GCN Circ. 10929), from 92 s to 18.5 ks after the BAT trigger. The data comprise 317 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The X-ray light curve displays a strong flare starting at about 140s and peaking at 190s after the burst. As mentioned in GCN Circ. 10929, this flare coincides with a flare seen in the BAT. The rest of the light curve can be modeled with a series of power-law decays. After the flare the afterglow decays with a slope of 0.32 and breaks at about 1 ks after the burst followed by a decay slope of 0.76+/-0.06.
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.96 (+/-0.04). The best-fitting absorption column is 3.23 (+/-0.14) x 10^21 cm^-2, in excess of the Galactic value of 1.0 x 10^21 cm^-2 (Kalberla et al. 2005). With an excess absorption column density of 2.32 x 10^21 cm^-2 the NH-redshift relation by Grupe et al. (2007, AJ 133, 2216) suggests a redshift z<3.0. The PC mode spectrum has a photon index of 2.6 (+/-0.3) and a best-fitting absorption column of 3.1 (+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 3.5 x 10^-11 (8.3 x 10^-11) erg cm^-2 count^-1.
If the light curve continues to decay with a power-law decay index of 0.76, the count rate at T+24 hours will be 0.045 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.6 x 10^-12 (3.7 x 10^-12) erg cm^-2 s^-1 and 0.027 counts s^-1 T+48h.
The UVOT-enhanced position of the afterglow has already been reported by Osborne et al. (GCN Circ. 10930).
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00426722.
This circular is an official product of the Swift-XRT team.
GCN Circular #10937
S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report:
The long GRB 100704A (Swift-BAT trigger=426722; Grupe et al., GCN 10929; Cummings et al., GCN 10932) triggered Konus-Wind at T0=12905.409s UT (03:35:05.409)
The burst light curve consists of a single FRED-like pulse with a total duration of ~30 s. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB100704_T12905/
As observed by Konus-Wind the burst had a fluence of 6.6(+/-0.7)x10-6 erg/cm2, and a 256-ms peak flux measured from T0+0.768s of 1.1(+/-0.2)x10-6 erg/cm2/s (both in the 20 keV - 2 MeV energy range).
The time-integrated spectrum of the burst (from T0 to T0+16.640 s) is best fit in the 20 keV - 2 MeV range by a power law with exponential cutoff model, for which alpha = -0.75(-0.28, +0.33), and Ep = 176(-24, +35) keV (chi2 = 34/58 dof).
The spectrum at the maximum count rate (measured from T0+0.256 to T0+8.848 s) is best fit in the 20 keV - 2 MeV range by a power law with exponential cutoff model, for which alpha = -0.65(-0.27, +0.31), and Ep = 214(-29, +43) keV (chi2 = 44/58 dof).
All the quoted results are preliminary. All the quoted errors are at the 90% confidence level.
GCN Circular #10940
S. Campana (INAF-OAB) and D. Grupe (PSU) report on behalf of the Swift-XRT team:
Swift XRT observed the bright GRB 100704A (Grupe et al. 2010, GCN 10929) starting 86 s after the BAT trigger. After strong X-ray flares the light curve started decaying following a power law (Grupe 2010, GCN 10935). We selected the time interval 4,510-28,896 s after the burst onset to collect the Photon Counting (PC) spectrum. During this interval the spectrum is almost constant as testified by a constant power law photon index (chi2=102 with 123 degrees of freedom).
We fit the PC spectrum (comprising 2002 counts) with a (Galactic plus intrinsic) absorbed cutoff power-law model (tbabs*ztbabs*cutoff) within XSPEC (the cutoff power-law model provides much better results in terms of column density evaluation with respect to a simple power-law model when small spectral variations are present). We assume a Galactic column density of 1.1x1021 cm-2 (Kalberla et al. 2005, A&A 440 775) and allowed for a 30% variability given its high value (and sampling all the values obtained within 1 degree from the source). We fit the spectrum using C-statistics. In the intrinsic column density vs. redshift plane there is a low significance (3 sigma) solution at low redshifts but the minimum lies at higher redshifts with a 2 sigma confidence level solution of z=3.6^+1.1 _-1.2 and N_H (z)=(9.7^+9.9 _-5.6 )x10^22 cm^-2 . Thus, even if we cannot exclude that GRB100704A is at low redshift, a high redshift (z~3.5), highly absorbed (N_H (z)~1x10^23 cm^-2 ) solution is preferred. This compares well with the non-detection with UVOT (Kuin and Grupe 2010, GCN 10934) and MOA robotic telescope (Omori et al. 2010, GCN 10931). We also note that if no interviening systems are present along the line of sight a 90% lower limit on the metallicity of 0.03 solar can be set (based on the assumption that the absorbing medium is not Thomson thick).
The contour plot is available at http://www.brera.inaf.it/utenti/campana/100704.gif
GCN Report 293.1
GCN_Report 293.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_293_1.pdf by D. Grupe at PSU titled: "Final report on Swift Observations of GRB 100704A"
1512.07670 from 25 Dec 15
Jun-Jie Wei et al.: Testing Einstein's Equivalence Principle with Fast Radio Bursts
The accuracy of Einstein's Equivalence Principle (EEP) can be tested with the observed time delays between correlated particles or photons that are emitted from astronomical sources. Assuming as a lower limit that the time delays are caused mainly by the gravitational potential of the Milky Way, we prove that fast radio bursts (FRBs) of cosmological origin can be used to constrain the EEP with high accuracy. Taking FRB 110220 and two possible FRB/gamma-ray burst (GRB) association systems (FRB/GRB 101011A and FRB/GRB 100704A) as examples, we obtain a strict upper limit on the differences of the parametrized post-Newtonian parameter $\gamma$ values as low as $\left[\gamma(1.23\; \rm GHz)-\gamma(1.45\; \rm GHz)\right]<4.36\times10^{-9}$. This provides the most stringent limit up to date on the EEP through the relative differential variations of the $\gamma$ parameter at radio energies, improving by 1 to 2 orders of magnitude the previous results at other energies based on supernova 1987A and GRBs.

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Jochen Greiner, last update: 28-Dec-2015 [Disclaimer]