Gamma-ray Burst 100619A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:21:24 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     424998,   Seg_Num: 0
GRB_RA:           84.615d {+05h 38m 28s} (J2000),
                  84.720d {+05h 38m 53s} (current),
                  84.116d {+05h 36m 28s} (1950)
GRB_DEC:         -27.001d {-27d 00' 02"} (J2000),
                 -26.995d {-26d 59' 43"} (current),
                 -27.028d {-27d 01' 41"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1300 [cnts]    Image_Peak=104 [image_cnts]
TRIGGER_DUR:     0.256 [sec] 
TRIGGER_INDEX:   123     E_range: 25-100 keV
BKG_INTEN:       25560 [cnts]
BKG_TIME:        1258.09 SOD {00:20:58.09} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15366 TJD;   170 DOY;   10/06/19
GRB_TIME:        1267.24 SOD {00:21:07.24} UT
GRB_PHI:         177.99 [deg]
GRB_THETA:        31.55 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     16.49 [sigma]
IMAGE_SIGNIF:    7.94 [sigma]
MERIT_PARAMS:     +1  +0  +0  -2  +2  -2  +0  +0 -63  +0 
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.48 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.78d {+11h 35m 07s}   -2.81d {-02d 48' 23"}
MOON_DIST:        87.89 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.05,-27.08 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       82.48,-50.30 [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 = 153.38,-15.00 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:21:39 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      47
TRIGGER_NUM:     298599669
GRB_RA:           81.250d {+05h 25m 00s} (J2000),
                  81.363d {+05h 25m 27s} (current),
                  80.710d {+05h 22m 50s} (1950)
GRB_DEC:         -20.117d {-20d 06' 59"} (J2000),
                 -20.108d {-20d 06' 27"} (current),
                 -20.160d {-20d 09' 36"} (1950)
GRB_ERROR:       16.50 [deg radius, statistical plus systematic]
GRB_INTEN:       129 [cnts/sec]
DATA_SIGNIF:     5.80 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        15366 TJD;   170 DOY;   10/06/19
GRB_TIME:        1267.03 SOD {00:21:07.03} UT
GRB_PHI:          11.00 [deg]
GRB_THETA:       115.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      1.22
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      49%  GRB
2nd_MOST_LIKELY:  45%  Distant Particles
DETECTORS:       0,0,1, 0,0,1, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         43.92 [deg]   Sun_angle= 0.4 [hr] (West of Sun)
MOON_POSTN:      173.78d {+11h 35m 07s}   -2.81d {-02d 48' 27"}
MOON_DIST:        91.30 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      222.58,-27.68 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       78.70,-43.21 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 245.28,21.52 [deg].

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:21:42 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      57
TRIGGER_NUM:     298599669
GRB_RA:           86.583d {+05h 46m 20s} (J2000),
                  86.694d {+05h 46m 46s} (current),
                  86.056d {+05h 44m 14s} (1950)
GRB_DEC:         -22.250d {-22d 15' 00"} (J2000),
                 -22.247d {-22d 14' 47"} (current),
                 -22.268d {-22d 16' 03"} (1950)
GRB_ERROR:       9.90 [deg radius, statistical plus systematic]
GRB_INTEN:       160 [cnts/sec]
DATA_SIGNIF:     11.70 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        15366 TJD;   170 DOY;   10/06/19
GRB_TIME:        1267.03 SOD {00:21:07.03} UT
GRB_PHI:          17.00 [deg]
GRB_THETA:       115.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      1.00
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      54%  GRB
2nd_MOST_LIKELY:  43%  Distant Particles
DETECTORS:       0,0,1, 0,0,1, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         45.67 [deg]   Sun_angle= 0.0 [hr] (West of Sun)
MOON_POSTN:      173.78d {+11h 35m 07s}   -2.81d {-02d 48' 28"}
MOON_DIST:        86.24 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      226.76,-23.80 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       85.48,-45.64 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 245.28,21.52 [deg].

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:21:51 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      56
TRIGGER_NUM:     298599669
GRB_RA:           86.120d {+05h 44m 29s} (J2000),
                  86.227d {+05h 44m 54s} (current),
                  85.611d {+05h 42m 27s} (1950)
GRB_DEC:         -25.350d {-25d 21' 00"} (J2000),
                 -25.346d {-25d 20' 45"} (current),
                 -25.370d {-25d 22' 11"} (1950)
GRB_ERROR:       4.03 [deg radius, statistical only]
DATA_SIGNIF:     15.80 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        15366 TJD;   170 DOY;   10/06/19
GRB_TIME:        1267.03 SOD {00:21:07.03} UT
GRB_PHI:          18.00 [deg]
GRB_THETA:       118.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   413 (Gnd S/W Version number)
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         48.78 [deg]   Sun_angle= 0.1 [hr] (West of Sun)
MOON_POSTN:      173.78d {+11h 35m 08s}   -2.81d {-02d 48' 30"}
MOON_DIST:        86.59 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      229.80,-25.27 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       84.68,-48.72 [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:     Sat 19 Jun 10 00:21:55 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      59
TRIGGER_NUM:     298599669
GRB_RA:           86.120d {+05h 44m 29s} (J2000),
                  86.227d {+05h 44m 54s} (current),
                  85.611d {+05h 42m 27s} (1950)
GRB_DEC:         -25.280d {-25d 16' 47"} (J2000),
                 -25.276d {-25d 16' 33"} (current),
                 -25.300d {-25d 18' 00"} (1950)
GRB_ERROR:       5.48 [deg radius, statistical only]
DATA_SIGNIF:     14.10 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        15366 TJD;   170 DOY;   10/06/19
GRB_TIME:        1267.03 SOD {00:21:07.03} UT
GRB_PHI:          18.00 [deg]
GRB_THETA:       118.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   413 (Gnd S/W Version number)
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         48.71 [deg]   Sun_angle= 0.1 [hr] (West of Sun)
MOON_POSTN:      173.78d {+11h 35m 08s}   -2.81d {-02d 48' 31"}
MOON_DIST:        86.59 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      229.72,-25.25 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       84.69,-48.65 [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:     Sat 19 Jun 10 00:22:52 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     424998,   Seg_Num: 0
GRB_RA:           84.6259d {+05h 38m 30.21s} (J2000),
                  84.7304d {+05h 38m 55.29s} (current),
                  84.1267d {+05h 36m 30.40s} (1950)
GRB_DEC:         -27.0065d {-27d 00' 23.3"} (J2000),
                 -27.0011d {-27d 00' 03.9"} (current),
                 -27.0338d {-27d 02' 01.6"} (1950)
GRB_ERROR:       5.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       5.61e-08 [erg/cm2/sec]
GRB_SIGNIF:      8.66 [sigma]
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1343.68 SOD {00:22:23.68} UT,   76.4 [sec] since BAT Trigger Time
TAM[0-3]:        327.65 237.22 261.29 243.73
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.79d {+11h 35m 10s}   -2.81d {-02d 48' 45"}
MOON_DIST:        87.89 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the burst
ECL_COORDS:       82.49,-50.31 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.65 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:23:02 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     424998,   Seg_Num: 0
GRB_RA:           84.6259d {+05h 38m 30.2s} (J2000),
                  84.7304d {+05h 38m 55.2s} (current),
                  84.1267d {+05h 36m 30.4s} (1950)
GRB_DEC:         -27.0065d {-27d 00' 23.3"} (J2000),
                 -27.0011d {-27d 00' 03.9"} (current),
                 -27.0338d {-27d 02' 01.6"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       75 [cnts]
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1343.68 SOD {00:22:23.68} UT,   76.4 [sec] since BAT Trigger Time
CENTROID_X:      296.20,  raw= 296  [pixels]
CENTROID_Y:      284.92,  raw= 285  [pixels]
ROLL:            3.36 [deg]
GAIN:            1
MODE:            2, Short Image mode
WAVEFORM:        134
EXPO_TIME:       0.10 [sec]
GRB_POS_XRT_Y:   -30.82
GRB_POS_XRT_Z:   -14.36
IMAGE_URL:       sw00424998000msxps_rw.img
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.79d {+11h 35m 10s}   -2.81d {-02d 48' 48"}
MOON_DIST:        87.89 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the burst
ECL_COORDS:       82.49,-50.31 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:23:09 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     424998,   Seg_Num: 0
GRB_RA:           84.6259d {+05h 38m 30.2s} (J2000),
                  84.7304d {+05h 38m 55.2s} (current),
                  84.1267d {+05h 36m 30.4s} (1950)
GRB_DEC:         -27.0065d {-27d 00' 23.3"} (J2000),
                 -27.0011d {-27d 00' 03.9"} (current),
                 -27.0338d {-27d 02' 01.6"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       75 [cnts]
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1343.68 SOD {00:22:23.68} UT,   76.4 [sec] since BAT Trigger Time
CENTROID_X:      296.20,  raw= 296  [pixels]
CENTROID_Y:      284.92,  raw= 285  [pixels]
ROLL:            3.36 [deg]
GAIN:            1
MODE:            2, Short Image mode
WAVEFORM:        134
EXPO_TIME:       0.10 [sec]
GRB_POS_XRT_Y:   -30.82
GRB_POS_XRT_Z:   -14.36
IMAGE_URL:       sw00424998000msxps_rw.img
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.79d {+11h 35m 10s}   -2.81d {-02d 48' 49"}
MOON_DIST:        87.89 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the burst
ECL_COORDS:       82.49,-50.31 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:25:08 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     424998,   Seg_Num: 0
GRB_RA:           84.615d {+05h 38m 28s} (J2000),
                  84.720d {+05h 38m 53s} (current),
                  84.116d {+05h 36m 28s} (1950)
GRB_DEC:         -27.001d {-27d 00' 02"} (J2000),
                 -26.995d {-26d 59' 43"} (current),
                 -27.028d {-27d 01' 41"} (1950)
GRB_DATE:        15366 TJD;   170 DOY;   10/06/19
GRB_TIME:        1267.24 SOD {00:21:07.24} UT
TRIGGER_INDEX:   123
GRB_PHI:         177.99 [deg]
GRB_THETA:        31.55 [deg]
DELTA_TIME:      44.00 [sec]
TRIGGER_DUR:     0.256 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     16.49 [sigma]
IMAGE_SIGNIF:    7.94 [sigma]
LC_URL:          sw00424998000msb.lc
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.48 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.81d {+11h 35m 15s}   -2.82d {-02d 49' 19"}
MOON_DIST:        87.91 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.05,-27.08 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       82.48,-50.30 [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 = 153.38,-15.00 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:25:36 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.613d {+05h 38m 27s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 36"} (J2000)
POINT_ROLL:      3.364d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1354.55 SOD {00:22:34.55} UT,   87.3 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.783
N_STARS:         53
X_OFFSET:        531 [pixels]
Y_OFFSET:        596 [pixels]
X_MAX:           1490 [pixels]
Y_MAX:           1555 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00424998000msufc0087.fits
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.81d {+11h 35m 15s}   -2.82d {-02d 49' 26"}
MOON_DIST:        87.91 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.47,-50.31 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:26:02 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.613d {+05h 38m 27s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 36"} (J2000)
POINT_ROLL:      3.364d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1354.55 SOD {00:22:34.55} UT,   87.3 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.783
N_STARS:         53
X_OFFSET:        531 [pixels]
Y_OFFSET:        596 [pixels]
X_MAX:           1490 [pixels]
Y_MAX:           1555 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00424998000msufc0087.fits
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.82d {+11h 35m 16s}   -2.83d {-02d 49' 32"}
MOON_DIST:        87.92 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.47,-50.31 [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:     Sat 19 Jun 10 00:25:36 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.613d {+05h 38m 27s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 36"} (J2000)
POINT_ROLL:      3.364d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1354.55 SOD {00:22:34.55} UT,   87.3 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.783
N_STARS:         53
X_OFFSET:        531 [pixels]
Y_OFFSET:        596 [pixels]
X_MAX:           1490 [pixels]
Y_MAX:           1555 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00424998000msufc0087.fits
SUN_POSTN:        87.43d {+05h 49m 44s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.81d {+11h 35m 15s}   -2.82d {-02d 49' 26"}
MOON_DIST:        87.91 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.47,-50.31 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:27:05 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.613d {+05h 38m 27s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 36"} (J2000)
ROLL:            3.364d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1354.55 SOD {00:22:34.55} UT,   87.3 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     298599760
X_OFFSET:        851 [pixels]
Y_OFFSET:        916 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1011
Y_GRB_POS:       1076
BINNING_INDEX:   1
IM_URL:          sw00424998000msuni0093.fits
SUN_POSTN:        87.44d {+05h 49m 45s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.83d {+11h 35m 19s}   -2.83d {-02d 49' 48"}
MOON_DIST:        87.92 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.47,-50.31 [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:     Sat 19 Jun 10 00:27:21 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.613d {+05h 38m 27s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 36"} (J2000)
ROLL:            3.364d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1354.55 SOD {00:22:34.55} UT,   87.3 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     298599760
X_OFFSET:        851 [pixels]
Y_OFFSET:        916 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1011
Y_GRB_POS:       1076
BINNING_INDEX:   1
IM_URL:          sw00424998000msuni0093.fits
SUN_POSTN:        87.44d {+05h 49m 45s}  +23.42d {+23d 24' 59"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.83d {+11h 35m 19s}   -2.83d {-02d 49' 52"}
MOON_DIST:        87.92 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.47,-50.31 [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:     Sat 19 Jun 10 00:33:53 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
POINT_ROLL:      3.362d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1566.79 SOD {00:26:06.79} UT,   299.5 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.837
N_STARS:         43
X_OFFSET:        531 [pixels]
Y_OFFSET:        596 [pixels]
X_MAX:           1490 [pixels]
Y_MAX:           1555 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00424998000msufc0299.fits
SUN_POSTN:        87.44d {+05h 49m 46s}  +23.42d {+23d 24' 60"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.89d {+11h 35m 33s}   -2.86d {-02d 51' 29"}
MOON_DIST:        87.96 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:33:53 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
POINT_ROLL:      3.362d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1566.79 SOD {00:26:06.79} UT,   299.5 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.837
N_STARS:         43
X_OFFSET:        531 [pixels]
Y_OFFSET:        596 [pixels]
X_MAX:           1490 [pixels]
Y_MAX:           1555 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00424998000msufc0299.fits
SUN_POSTN:        87.44d {+05h 49m 46s}  +23.42d {+23d 24' 60"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.89d {+11h 35m 33s}   -2.86d {-02d 51' 29"}
MOON_DIST:        87.96 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:34:16 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
POINT_ROLL:      3.362d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1566.79 SOD {00:26:06.79} UT,   299.5 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.837
N_STARS:         43
X_OFFSET:        531 [pixels]
Y_OFFSET:        596 [pixels]
X_MAX:           1490 [pixels]
Y_MAX:           1555 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00424998000msufc0299.fits
SUN_POSTN:        87.44d {+05h 49m 46s}  +23.42d {+23d 24' 60"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.89d {+11h 35m 34s}   -2.86d {-02d 51' 35"}
MOON_DIST:        87.96 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [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:     Sat 19 Jun 10 00:35:18 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
ROLL:            3.362d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1566.79 SOD {00:26:06.79} UT,   299.5 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     298599972
X_OFFSET:        851 [pixels]
Y_OFFSET:        916 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1011
Y_GRB_POS:       1076
BINNING_INDEX:   1
IM_URL:          sw00424998000msuni0305.fits
SUN_POSTN:        87.44d {+05h 49m 46s}  +23.42d {+23d 24' 60"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.90d {+11h 35m 36s}   -2.86d {-02d 51' 50"}
MOON_DIST:        87.97 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [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:     Sat 19 Jun 10 00:35:35 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
ROLL:            3.362d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1566.79 SOD {00:26:06.79} UT,   299.5 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     298599972
X_OFFSET:        851 [pixels]
Y_OFFSET:        916 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1011
Y_GRB_POS:       1076
BINNING_INDEX:   1
IM_URL:          sw00424998000msuni0305.fits
SUN_POSTN:        87.44d {+05h 49m 46s}  +23.42d {+23d 24' 60"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.90d {+11h 35m 37s}   -2.87d {-02d 51' 55"}
MOON_DIST:        87.97 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [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:     Sat 19 Jun 10 00:35:25 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     424998,   Seg_Num: 0
GRB_RA:           84.6226d {+05h 38m 29.42s} (J2000),
                  84.7271d {+05h 38m 54.50s} (current),
                  84.1234d {+05h 36m 29.60s} (1950)
GRB_DEC:         -27.0048d {-27d 00' 17.2"} (J2000),
                 -26.9994d {-26d 59' 57.8"} (current),
                 -27.0321d {-27d 01' 55.5"} (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:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  1461.00 SOD {00:24:21.00} UT,   193.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        87.44d {+05h 49m 46s}  +23.42d {+23d 24' 60"}
SUN_DIST:         50.48 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.90d {+11h 35m 36s}   -2.86d {-02d 51' 52"}
MOON_DIST:        87.96 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the burst
ECL_COORDS:       82.49,-50.30 [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 1.1% < P(seren) < 2.8%.

GCN Circular #10863
J. K. Cannizzo (NASA/UMBC), N. Gehrels (NASA/GSFC), J. M. Gelbord (PSU), S. T. Holland (CRESST/USRA/GSFC), J. Mao (INAF-OAB), R. Margutti (INAF-OAB), F. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), B. Sbarufatti (INAF-OAB/IASFPA), M. H. Siegel (PSU), M. A. Stark (PSU) and T. N. Ukwatta (GSFC/GWU) report on behalf of the Swift Team:
At 00:21:07 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 100619A (trigger=424998). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 84.615, -27.001 which is
```
   RA(J2000) = 05h 38m 28s
   Dec(J2000) = -27d 00' 02"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed two well-separated peaks about 90 seconds apart with an overall duration of about 120 sec. The peak count rate was ~4000 counts/sec (15-350 keV), at ~0 sec after the trigger for the first peak, and 5000 counts/sec (15-350 keV) at ~95 sec after the trigger for the second peak.
The XRT began observing the field at 00:22:23.7 UT, 76.4 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source with an enhanced position: RA, Dec 84.6227, -27.0049 which is equivalent to:
```
   RA(J2000)  = 05h 38m 29.46s
   Dec(J2000) = -27d 00' 17.8"
```
with an uncertainty of 2.1 arcseconds (radius, 90% containment). This location is 27 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 (2e+20 cm^-2, Kalberla et al. 2005), with an excess column of 3.8 (+1.95/-1.69) x 10^21 cm^-2 (90% confidence).
The initial flux in the 0.1 s image was 5.61e-08 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 87 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 0.03.
Burst Advocate for this burst is J. K. Cannizzo (cannizzo AT milkyway.gsfc.nasa.gov). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:40:38 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
POINT_ROLL:      3.361d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  2145.31 SOD {00:35:45.31} UT,   878.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.413
N_STARS:         132
X_OFFSET:        291 [pixels]
Y_OFFSET:        356 [pixels]
X_MAX:           1730 [pixels]
Y_MAX:           1795 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00424998000msufc0878.fits
SUN_POSTN:        87.45d {+05h 49m 47s}  +23.42d {+23d 25' 00"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.95d {+11h 35m 47s}   -2.89d {-02d 53' 10"}
MOON_DIST:        88.00 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:40:38 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
POINT_ROLL:      3.361d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  2145.31 SOD {00:35:45.31} UT,   878.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.413
N_STARS:         132
X_OFFSET:        291 [pixels]
Y_OFFSET:        356 [pixels]
X_MAX:           1730 [pixels]
Y_MAX:           1795 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00424998000msufc0878.fits
SUN_POSTN:        87.45d {+05h 49m 47s}  +23.42d {+23d 25' 00"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.95d {+11h 35m 47s}   -2.89d {-02d 53' 10"}
MOON_DIST:        88.00 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Jun 10 00:40:56 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
POINT_ROLL:      3.361d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  2145.31 SOD {00:35:45.31} UT,   878.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.413
N_STARS:         132
X_OFFSET:        291 [pixels]
Y_OFFSET:        356 [pixels]
X_MAX:           1730 [pixels]
Y_MAX:           1795 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00424998000msufc0878.fits
SUN_POSTN:        87.45d {+05h 49m 47s}  +23.42d {+23d 25' 00"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.95d {+11h 35m 48s}   -2.89d {-02d 53' 14"}
MOON_DIST:        88.00 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [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:     Sat 19 Jun 10 00:42:02 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
ROLL:            3.361d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  2145.31 SOD {00:35:45.31} UT,   878.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     298600551
X_OFFSET:        850 [pixels]
Y_OFFSET:        915 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1010
Y_GRB_POS:       1075
BINNING_INDEX:   1
IM_URL:          sw00424998000msuni0884.fits
SUN_POSTN:        87.45d {+05h 49m 47s}  +23.42d {+23d 25' 00"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.96d {+11h 35m 50s}   -2.89d {-02d 53' 30"}
MOON_DIST:        88.01 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [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:     Sat 19 Jun 10 00:42:13 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     424998,   Seg_Num: 0
POINT_RA:         84.616d {+05h 38m 28s} (J2000)
POINT_DEC:       -27.010d {-27d 00' 35"} (J2000)
ROLL:            3.361d
IMG_START_DATE:  15366 TJD;   170 DOY;   10/06/19
IMG_START_TIME:  2145.31 SOD {00:35:45.31} UT,   878.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     298600551
X_OFFSET:        850 [pixels]
Y_OFFSET:        915 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1010
Y_GRB_POS:       1075
BINNING_INDEX:   1
IM_URL:          sw00424998000msuni0884.fits
SUN_POSTN:        87.45d {+05h 49m 47s}  +23.42d {+23d 25' 00"}
SUN_DIST:         50.49 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      173.96d {+11h 35m 51s}   -2.89d {-02d 53' 33"}
MOON_DIST:        88.01 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:      231.06,-27.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       82.48,-50.31 [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 #10864
M. Stamatikos (GSFC/ORAU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. K. Cannizzo (NASA/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), 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), J. Tueller (GSFC), T. N. Ukwatta (GWU) (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 100619A (trigger #424998) (Cannizzo, et al., GCN Circ. 10863). The BAT ground-calculated position is RA, Dec = 84.618, -27.012 deg which is
```
   RA(J2000)  =  05h 38m 28.3s 
   Dec(J2000) = -27d 00' 42.2" 
```
with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 75%.
The mask-weighted light curve shows two well separated peaks. The first s compsed of several overlapping pulses which starts at ~T-3 sec, peaks at ~T_10 sec, and returns to background at ~T+20 sec. The second peak starts ~T+55 sec, peaks at ~T=85 sec, and ends at ~T+120 sec. T90 (15-350 keV) is 97.5 +- 3 sec (estimated error including systematics).
The time-averaged spectrum from T-2.9 to T+105.7 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.83 +- 0.06. The fluence in the 15-150 keV band is 4.5 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+87.22 sec in the 15-150 keV band is 4.8 +- 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/424998/BA/
GCN Circular #10865
A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team.
Using 4927 s of XRT Photon Counting mode data and 8 UVOT images for GRB 100619A, 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 = 84.62214, -27.00534 which is equivalent to:
```
RA (J2000): 05h 38m 29.31s
Dec (J2000): -27d 00' 19.2"
```
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 #10866
J. Mao (INAF-OAB) and J. K. Cannizzo (NASA/UMBC) report on behalf of the Swift-XRT team:
We have analysed 6.6 ks of XRT data for GRB 100619A (Cannizzo et al. GCN Circ. 10863), from 80 s to 13.2 ks after the BAT trigger. The data comprise 492 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The light curve initially shows a flare feature at the time 90s, then it has a power-law decay with an index 0.88, after that, the light curve shows a clear flare feature with the peak at 1000s. Then, the light cure has a power-law decay with an index of alpha=0.85 (+/-0.02).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.41 (+/-0.03). The best-fitting absorption column is 3.4 (+/-0.1) x 1021 cm^-2, in excess of the Galactic value of 2.0 x 1020 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 2.16 (+0.20, -0.19) and a best-fitting absorption column of 3.7 (+/-0.6) x 1021 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 6.7 x 10^-11 (9.6 x 10^-11) erg cm^-2 count^-1. If the light curve continues to decay with a power-law decay index of 0.85, the count rate at T+24 hours will be 0.015 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.0 x 10^-12 (1.4 x 10^-12) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00424998.
This circular is an official product of the Swift-XRT team.
GCN Circular #10867
P.A. Curran (MSSL-UCL) and J. K. Cannizzo (NASA/UMBC) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 100619A 87 s after the BAT trigger (Cannizzo et al., GCN Circ. 10863). No optical afterglow consistent with the enhanced XRT position (Beardmore et al., GCN Circ. 10865) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Poole et al. 2008, MNRAS, 383, 627) for the first finding chart (FC) and subsequent exposures are:
```
Filter   T_start(s)  T_stop(s)  Exp(s)   Mag
-----------------------------------------------
white    87          237        147      >21.2 (FC)
u        300         549        246      >20.5 (FC)


white    87          6773       785      >22.0
v        630         7184       510      >20.2
b        556         13220      1161     >21.5
u        300         19002      2089     >21.6
w1       679         18300      2128     >21.7
m2       654         17394      1396     >21.4
w2       606         6978       510      >20.9
```
The values quoted above are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #10868
P. N. Bhat (UAH) reports on behalf of the Fermi GBM Team:
"At 03:55:23.71 UT on 19 June 2010, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 100619A (trigger 298612525 / 100619015). which was also detected by the SWIFT-BAT (Cannizzo et al. 2008, GCN 10863) The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight is 117 degrees.
The GBM light curve shows 2 well separated pulses with a duration (T90) of about 96.8 s (50-300 keV). The time-averaged spectrum from T0-9.216 s to T0+101.378 s is well fit by a power law function with an exponential high energy cutoff. The power law index is -1.61 +/- 0.05 and the cutoff energy, parameterized as Epeak, is 143.2 +/- 24.8 keV
(C-stat 419 for 241 d.o.f.).
The event fluence (8-1000 keV) in this time interval is (1.71 +/- 0.1)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+83 s in the 10-1000 keV band is 1.88 +/- 0.04 ph/s/cm^2.
A Band function fits the spectrum equally well (C-stat 419 for 240 d.o.f.) with Epeak= 135.3 +/- 37.1 keV, alpha = -1.60 +/- 0.07 and beta = -2.36 +/- 0.69.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN Circular #10879
P. N. Bhat (UAH) reports on behalf of the Fermi GBM Team:
"The trigger time of GRB 100619A reported in GCN 10868 as 03:55:23.71 UT is in error. The actual trigger time is 00:21:07.03 UT."
GCN Report 288.1
GCN_Report 288.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_288_1.pdf by J.K. Cannizzo at NASA/UMBC titled: "Final report on Swift Observations of GRB 100619A"

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Jochen Greiner, last update: 19-Jun-2010 [Disclaimer]