Gamma-ray Burst 150607A

(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:     Sun 07 Jun 15 07:55:24 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          140.024d {+09h 20m 06s} (J2000),
                 140.361d {+09h 21m 27s} (current),
                 138.923d {+09h 15m 42s} (1950)
GRB_DEC:         +68.442d {+68d 26' 33"} (J2000),
                 +68.376d {+68d 22' 35"} (current),
                 +68.654d {+68d 39' 15"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1601 [cnts]    Image_Peak=134 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   41     E_range: 25-100 keV
BKG_INTEN:       16789 [cnts]
BKG_TIME:        28498.31 SOD {07:54:58.31} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17180 TJD;   158 DOY;   15/06/07
GRB_TIME:        28509.57 SOD {07:55:09.57} UT
GRB_PHI:         -137.48 [deg]
GRB_THETA:        42.44 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     19.62 [sigma]
IMAGE_SIGNIF:    10.81 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +2  +0  +0  +0 -50  +0 
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         59.91 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      316.90d {+21h 07m 35s}  -12.31d {-12d 18' 19"}
MOON_DIST:       123.88 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.88, 38.44 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      115.64, 49.41 [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 = 348.09,20.40 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=455356512).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:55:39 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      45
TRIGGER_NUM:     455356512
GRB_RA:          114.033d {+07h 36m 08s} (J2000),
                 114.351d {+07h 37m 24s} (current),
                 113.001d {+07h 32m 00s} (1950)
GRB_DEC:         +56.833d {+56d 49' 60"} (J2000),
                 +56.798d {+56d 47' 53"} (current),
                 +56.944d {+56d 56' 40"} (1950)
GRB_ERROR:       17.32 [deg radius, statistical plus systematic]
GRB_INTEN:       175 [cnts/sec]
DATA_SIGNIF:     8.10 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        17180 TJD;   158 DOY;   15/06/07
GRB_TIME:        28509.85 SOD {07:55:09.85} UT
GRB_PHI:           0.00 [deg]
GRB_THETA:       115.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      1.05
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      91%  GRB
2nd_MOST_LIKELY:   6%  Solar Flare
DETECTORS:       0,0,1, 0,0,1, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         44.41 [deg]   Sun_angle= -2.6 [hr] (East of Sun)
MOON_POSTN:      316.90d {+21h 07m 35s}  -12.30d {-12d 18' 17"}
MOON_DIST:       132.26 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      160.54, 28.43 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      105.72, 34.70 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150607330/quicklook/glg_lc_medres34_bn150607330.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 359.12,5.08 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(0.0<100sec) coincident with the SWIFT_BAT event (trignum=642620).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:56:06 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      57
TRIGGER_NUM:     455356512
GRB_RA:          117.980d {+07h 51m 55s} (J2000),
                 118.305d {+07h 53m 13s} (current),
                 116.923d {+07h 47m 42s} (1950)
GRB_DEC:         +59.230d {+59d 13' 48"} (J2000),
                 +59.189d {+59d 11' 22"} (current),
                 +59.358d {+59d 21' 30"} (1950)
GRB_ERROR:       8.61 [deg radius, statistical only]
DATA_SIGNIF:     10.50 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        17180 TJD;   158 DOY;   15/06/07
GRB_TIME:        28509.85 SOD {07:55:09.85} UT
GRB_PHI:           1.00 [deg]
GRB_THETA:       118.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4153 (Gnd S/W Version number)
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         47.45 [deg]   Sun_angle= -2.9 [hr] (East of Sun)
MOON_POSTN:      316.90d {+21h 07m 36s}  -12.30d {-12d 18' 13"}
MOON_DIST:       131.10 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      157.99, 30.70 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      107.61, 37.49 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150607330/quicklook/glg_lc_medres34_bn150607330.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(0.0<100sec) coincident with the SWIFT_BAT event (trignum=642620).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:57:22 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      0
TRIGGER_NUM:     455356512
GRB_RA:          123.040d {+08h 12m 10s} (J2000),
                 123.356d {+08h 13m 25s} (current),
                 122.013d {+08h 08m 03s} (1950)
GRB_DEC:         +58.660d {+58d 39' 36"} (J2000),
                 +58.613d {+58d 36' 47"} (current),
                 +58.810d {+58d 48' 35"} (1950)
GRB_ERROR:       4.14 [deg radius, statistical only]
DATA_SIGNIF:     16.80 [sigma]
DATA_INTERVAL:   10.240 [sec]
GRB_DATE:        17180 TJD;   158 DOY;   15/06/07
GRB_TIME:        28509.85 SOD {07:55:09.85} UT
GRB_PHI:         359.00 [deg]
GRB_THETA:       120.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         49.48 [deg]   Sun_angle= -3.2 [hr] (East of Sun)
MOON_POSTN:      316.91d {+21h 07m 39s}  -12.30d {-12d 18' 02"}
MOON_DIST:       132.57 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      158.67, 33.31 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      110.97, 37.60 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150607330/quicklook/glg_lc_medres34_bn150607330.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(0.0<100sec) coincident with the SWIFT_BAT event (trignum=642620).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:57:56 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          139.9916d {+09h 19m 57.98s} (J2000),
                 140.3283d {+09h 21m 18.79s} (current),
                 138.8905d {+09h 15m 33.73s} (1950)
GRB_DEC:         +68.4368d {+68d 26' 12.4"} (J2000),
                 +68.3708d {+68d 22' 15.0"} (current),
                 +68.6483d {+68d 38' 53.9"} (1950)
GRB_ERROR:       6.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       4.64e-10 [erg/cm2/sec]
GRB_SIGNIF:      4.79 [sigma]
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28640.51 SOD {07:57:20.51} UT,   130.9 [sec] since BAT Trigger Time
TAM[0-3]:        327.66 237.21 261.45 243.65
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         59.89 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      316.92d {+21h 07m 41s}  -12.30d {-12d 17' 58"}
MOON_DIST:       123.88 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.90, 38.43 [deg] galactic lon,lat of the burst
ECL_COORDS:      115.63, 49.40 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.79 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:58:06 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          139.9916d {+09h 19m 57.9s} (J2000),
                 140.3283d {+09h 21m 18.7s} (current),
                 138.8905d {+09h 15m 33.7s} (1950)
GRB_DEC:         +68.4368d {+68d 26' 12.4"} (J2000),
                 +68.3708d {+68d 22' 15.0"} (current),
                 +68.6483d {+68d 38' 53.9"} (1950)
GRB_ERROR:       6.5 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       23 [cnts]
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28640.51 SOD {07:57:20.51} UT,   130.9 [sec] since BAT Trigger Time
CENTROID_X:      255.44,  raw= 255  [pixels]
CENTROID_Y:      303.16,  raw= 303  [pixels]
ROLL:            255.18 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   12.64
GRB_POS_XRT_Z:   -117.51
IMAGE_URL:       sw00642620000msxps_rw.img
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         59.89 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      316.92d {+21h 07m 41s}  -12.30d {-12d 17' 56"}
MOON_DIST:       123.88 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.90, 38.43 [deg] galactic lon,lat of the burst
ECL_COORDS:      115.63, 49.40 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:58:13 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          139.9916d {+09h 19m 57.9s} (J2000),
                 140.3283d {+09h 21m 18.7s} (current),
                 138.8905d {+09h 15m 33.7s} (1950)
GRB_DEC:         +68.4368d {+68d 26' 12.4"} (J2000),
                 +68.3708d {+68d 22' 15.0"} (current),
                 +68.6483d {+68d 38' 53.9"} (1950)
GRB_ERROR:       6.5 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       23 [cnts]
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28640.51 SOD {07:57:20.51} UT,   130.9 [sec] since BAT Trigger Time
CENTROID_X:      255.44,  raw= 255  [pixels]
CENTROID_Y:      303.16,  raw= 303  [pixels]
ROLL:            255.18 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   12.64
GRB_POS_XRT_Z:   -117.51
IMAGE_URL:       sw00642620000msxps_rw.img
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 47"}
SUN_DIST:         59.89 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      316.92d {+21h 07m 41s}  -12.30d {-12d 17' 55"}
MOON_DIST:       123.88 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.90, 38.43 [deg] galactic lon,lat of the burst
ECL_COORDS:      115.63, 49.40 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 07:58:43 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          140.024d {+09h 20m 06s} (J2000),
                 140.361d {+09h 21m 27s} (current),
                 138.923d {+09h 15m 42s} (1950)
GRB_DEC:         +68.442d {+68d 26' 33"} (J2000),
                 +68.376d {+68d 22' 35"} (current),
                 +68.654d {+68d 39' 15"} (1950)
GRB_DATE:        17180 TJD;   158 DOY;   15/06/07
GRB_TIME:        28509.57 SOD {07:55:09.57} UT
TRIGGER_INDEX:   41
GRB_PHI:         -137.48 [deg]
GRB_THETA:        42.44 [deg]
DELTA_TIME:      -5.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.62 [sigma]
IMAGE_SIGNIF:    10.81 [sigma]
LC_URL:          sw00642620000msb.lc
SUN_POSTN:        75.10d {+05h 00m 24s}  +22.73d {+22d 43' 48"}
SUN_DIST:         59.90 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      316.93d {+21h 07m 43s}  -12.30d {-12d 17' 51"}
MOON_DIST:       123.88 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.88, 38.44 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      115.64, 49.41 [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 = 348.09,20.40 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:02:48 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.074d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.449d {+68d 26' 56"} (J2000)
POINT_ROLL:      255.184d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28646.28 SOD {07:57:26.28} UT,   136.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        7.258
N_STARS:         24
X_OFFSET:        592 [pixels]
Y_OFFSET:        456 [pixels]
X_MAX:           1551 [pixels]
Y_MAX:           1415 [pixels]
DET_THRESH:      23
PHOTO_THRESH:    14
SL_URL:          sw00642620000msufc0136.fits
SUN_POSTN:        75.10d {+05h 00m 25s}  +22.73d {+22d 43' 49"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      316.97d {+21h 07m 52s}  -12.29d {-12d 17' 17"}
MOON_DIST:       123.86 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.87, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:03:27 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.074d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.449d {+68d 26' 56"} (J2000)
POINT_ROLL:      255.184d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28646.28 SOD {07:57:26.28} UT,   136.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        7.258
N_STARS:         24
X_OFFSET:        592 [pixels]
Y_OFFSET:        456 [pixels]
X_MAX:           1551 [pixels]
Y_MAX:           1415 [pixels]
DET_THRESH:      23
PHOTO_THRESH:    14
SL_URL:          sw00642620000msufc0136.fits
SUN_POSTN:        75.10d {+05h 00m 25s}  +22.73d {+22d 43' 49"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      316.97d {+21h 07m 54s}  -12.29d {-12d 17' 12"}
MOON_DIST:       123.86 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.87, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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 07 Jun 15 08:05:14 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.074d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.449d {+68d 26' 56"} (J2000)
ROLL:            255.184d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28646.28 SOD {07:57:26.28} UT,   136.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     455356659
X_OFFSET:        985 [pixels]
Y_OFFSET:        720 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1145
Y_GRB_POS:       880
BINNING_INDEX:   1
IM_URL:          sw00642620000msuni0150.fits
SUN_POSTN:        75.11d {+05h 00m 25s}  +22.73d {+22d 43' 49"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      316.99d {+21h 07m 58s}  -12.28d {-12d 16' 57"}
MOON_DIST:       123.86 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.87, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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).  
COMMENTS:        This notice was forced out after watchdog timer expiring -- most likely due to missing packet(s);  
COMMENTS:        as a consequence some of the fields may be incoorect (eg TRIGGER_NUM,RA,DEC).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:05:32 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.074d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.449d {+68d 26' 56"} (J2000)
ROLL:            255.184d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28646.28 SOD {07:57:26.28} UT,   136.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     455356659
X_OFFSET:        985 [pixels]
Y_OFFSET:        720 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1145
Y_GRB_POS:       880
BINNING_INDEX:   1
IM_URL:          sw00642620000msuni0150.fits
SUN_POSTN:        75.11d {+05h 00m 25s}  +22.73d {+22d 43' 49"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      316.99d {+21h 07m 58s}  -12.28d {-12d 16' 54"}
MOON_DIST:       123.85 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.87, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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.  
COMMENTS:        This notice was forced out after watchdog timer expiring -- most likely due to missing packet(s);  
COMMENTS:        as a consequence some of the fields may be incoorect (eg TRIGGER_NUM,RA,DEC).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:07:29 UT
NOTICE_TYPE:     Swift-UVOT Position
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          139.9882d {+09h 19m 57.16s} (J2000),
                 140.3249d {+09h 21m 17.98s} (current),
                 138.8871d {+09h 15m 32.91s} (1950)
GRB_DEC:         +68.4361d {+68d 26' 09.9"} (J2000),
                 +68.3701d {+68d 22' 12.5"} (current),
                 +68.6476d {+68d 38' 51.4"} (1950)
GRB_ERROR:       0.8 [arcsec radius, statistical only]
GRB_MAG:         18.05 +/- 0.14 [mag]
FILTER:          10, White
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28645.00 SOD {07:57:25.00} UT,   135.4 [sec] since BAT Trigger Time
SUN_POSTN:        75.11d {+05h 00m 26s}  +22.73d {+22d 43' 50"}
SUN_DIST:         59.89 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      317.01d {+21h 08m 03s}  -12.28d {-12d 16' 38"}
MOON_DIST:       123.87 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      144.90, 38.43 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      115.63, 49.40 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT UVOT Position Notice.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The UVOT position is 5.0 arcsec from the XRT position.  
COMMENTS:        Result based on Genie data.  
COMMENTS:        Notice generated automatically.

GCN Circular #17904
V. D'Elia (ASDC), L. Izzo (URoma/ICRA), J. A. Kennea (PSU), K. L. Page (U Leicester), D. M. Palmer (LANL) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 07:55:09 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 150607A (trigger=642620). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 140.024, +68.442 which is
```
   RA(J2000) = 09h 20m 06s
   Dec(J2000) = +68d 26' 33"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multiply-peaked structure with a duration of about 50 sec. The peak count rate was ~3000 counts/sec (15-350 keV), at ~8 sec after the trigger.
The XRT began observing the field at 07:57:20.5 UT, 130.9 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 139.9916, 68.4368 which is equivalent to:
```
   RA(J2000)  = +09h 19m 57.98s
   Dec(J2000) = +68d 26' 12.5"
```
with an uncertainty of 6.5 arcseconds (radius, 90% containment). This location is 46 arcseconds from the BAT onboard position, within the BAT error circle.
The initial flux in the 2.5 s image was 4.64e-10 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 136 seconds after the BAT trigger. There is a candidate afterglow in the rapidly available 2.7'x2.7' sub-image at
```
  RA(J2000)  =	09:19:57.18 = 139.98825
  DEC(J2000) = +68:26:10.2  =  68.43618
```
with a 90%-confidence error radius of about 0.75 arc sec. This position is 5.0 arc sec. from the center of the XRT error circle. The estimated magnitude is 18.06 with a 1-sigma error of about 0.15. No correction has been made for the expected extinction corresponding to E(B-V) of 0.06.
Burst Advocate for this burst is V. D'Elia (delia AT asdc.asi.it). 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 07 Jun 15 08:21:57 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
POINT_ROLL:      255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28858.43 SOD {08:00:58.43} UT,   348.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        2.678
N_STARS:         21
X_OFFSET:        665 [pixels]
Y_OFFSET:        400 [pixels]
X_MAX:           1624 [pixels]
Y_MAX:           1359 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00642620000msufc0348.fits
SUN_POSTN:        75.12d {+05h 00m 28s}  +22.73d {+22d 43' 53"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.15d {+21h 08m 36s}  -12.24d {-12d 14' 37"}
MOON_DIST:       123.82 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:22:25 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
POINT_ROLL:      255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28858.43 SOD {08:00:58.43} UT,   348.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        2.678
N_STARS:         21
X_OFFSET:        665 [pixels]
Y_OFFSET:        400 [pixels]
X_MAX:           1624 [pixels]
Y_MAX:           1359 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00642620000msufc0348.fits
SUN_POSTN:        75.12d {+05h 00m 28s}  +22.73d {+22d 43' 53"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.16d {+21h 08m 38s}  -12.24d {-12d 14' 33"}
MOON_DIST:       123.82 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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 07 Jun 15 08:23:55 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
ROLL:            255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28858.43 SOD {08:00:58.43} UT,   348.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     455356872
X_OFFSET:        985 [pixels]
Y_OFFSET:        720 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1145
Y_GRB_POS:       880
BINNING_INDEX:   1
IM_URL:          sw00642620000msuni0362.fits
SUN_POSTN:        75.12d {+05h 00m 28s}  +22.73d {+22d 43' 54"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.17d {+21h 08m 41s}  -12.24d {-12d 14' 20"}
MOON_DIST:       123.81 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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 07 Jun 15 08:24:38 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
ROLL:            255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28858.43 SOD {08:00:58.43} UT,   348.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     455356872
X_OFFSET:        985 [pixels]
Y_OFFSET:        720 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1145
Y_GRB_POS:       880
BINNING_INDEX:   1
IM_URL:          sw00642620000msuni0362.fits
SUN_POSTN:        75.12d {+05h 00m 29s}  +22.73d {+22d 43' 54"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.18d {+21h 08m 43s}  -12.24d {-12d 14' 14"}
MOON_DIST:       123.81 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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 07 Jun 15 08:25:31 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
POINT_ROLL:      255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  29389.59 SOD {08:09:49.59} UT,   880.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        6.786
N_STARS:         58
X_OFFSET:        425 [pixels]
Y_OFFSET:        160 [pixels]
X_MAX:           1864 [pixels]
Y_MAX:           1599 [pixels]
DET_THRESH:      22
PHOTO_THRESH:    14
SL_URL:          sw00642620000msufc0880.fits
SUN_POSTN:        75.12d {+05h 00m 29s}  +22.73d {+22d 43' 54"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.19d {+21h 08m 45s}  -12.24d {-12d 14' 07"}
MOON_DIST:       123.81 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:25:52 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
POINT_ROLL:      255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  29389.59 SOD {08:09:49.59} UT,   880.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        6.786
N_STARS:         58
X_OFFSET:        425 [pixels]
Y_OFFSET:        160 [pixels]
X_MAX:           1864 [pixels]
Y_MAX:           1599 [pixels]
DET_THRESH:      22
PHOTO_THRESH:    14
SL_URL:          sw00642620000msufc0880.fits
SUN_POSTN:        75.12d {+05h 00m 29s}  +22.73d {+22d 43' 54"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.19d {+21h 08m 46s}  -12.23d {-12d 14' 04"}
MOON_DIST:       123.81 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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 07 Jun 15 08:26:46 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
ROLL:            255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  29389.59 SOD {08:09:49.59} UT,   880.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     455357403
X_OFFSET:        984 [pixels]
Y_OFFSET:        719 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1144
Y_GRB_POS:       879
BINNING_INDEX:   1
IM_URL:          sw00642620000msuni0894.fits
SUN_POSTN:        75.12d {+05h 00m 29s}  +22.73d {+22d 43' 54"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.20d {+21h 08m 48s}  -12.23d {-12d 13' 57"}
MOON_DIST:       123.81 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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 07 Jun 15 08:26:23 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     642620,   Seg_Num: 0
POINT_RA:        140.075d {+09h 20m 18s} (J2000)
POINT_DEC:       +68.451d {+68d 27' 05"} (J2000)
ROLL:            255.182d
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  29389.59 SOD {08:09:49.59} UT,   880.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     455357403
X_OFFSET:        984 [pixels]
Y_OFFSET:        719 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1144
Y_GRB_POS:       879
BINNING_INDEX:   1
IM_URL:          sw00642620000msuni0894.fits
SUN_POSTN:        75.12d {+05h 00m 29s}  +22.73d {+22d 43' 54"}
SUN_DIST:         59.92 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      317.19d {+21h 08m 47s}  -12.23d {-12d 14' 00"}
MOON_DIST:       123.81 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.86, 38.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      115.66, 49.43 [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:     Sun 07 Jun 15 08:42:14 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          139.9798d {+09h 19m 55.15s} (J2000),
                 140.3166d {+09h 21m 15.97s} (current),
                 138.8787d {+09h 15m 30.87s} (1950)
GRB_DEC:         +68.4361d {+68d 26' 09.9"} (J2000),
                 +68.3702d {+68d 22' 12.5"} (current),
                 +68.6476d {+68d 38' 51.3"} (1950)
GRB_ERROR:       3.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28723.00 SOD {07:58:43.00} UT,   213.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        75.13d {+05h 00m 32s}  +22.73d {+22d 43' 58"}
SUN_DIST:         59.87 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      317.35d {+21h 09m 24s}  -12.20d {-12d 11' 47"}
MOON_DIST:       123.79 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.90, 38.42 [deg] galactic lon,lat of the burst
ECL_COORDS:      115.63, 49.40 [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 2.8% < P(seren) < 6.6%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Jun 15 08:42:36 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     642620,   Seg_Num: 0
GRB_RA:          139.9798d {+09h 19m 55.15s} (J2000),
                 140.3166d {+09h 21m 15.97s} (current),
                 138.8787d {+09h 15m 30.87s} (1950)
GRB_DEC:         +68.4361d {+68d 26' 09.9"} (J2000),
                 +68.3702d {+68d 22' 12.5"} (current),
                 +68.6476d {+68d 38' 51.3"} (1950)
GRB_ERROR:       3.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17180 TJD;   158 DOY;   15/06/07
IMG_START_TIME:  28713.00 SOD {07:58:33.00} UT,   203.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        75.13d {+05h 00m 32s}  +22.73d {+22d 43' 58"}
SUN_DIST:         59.87 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      317.35d {+21h 09m 24s}  -12.20d {-12d 11' 44"}
MOON_DIST:       123.79 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      144.90, 38.42 [deg] galactic lon,lat of the burst
ECL_COORDS:      115.63, 49.40 [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 2.8% < P(seren) < 6.6%.

GCN Circular #17905
J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
Using 1781 s of XRT Photon Counting mode data and 2 UVOT images for GRB 150607A, 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 = 139.98854, +68.43599 which is equivalent to:
```
RA (J2000): 09h 19m 57.25s
Dec (J2000): +68d 26' 09.6"
```
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 #17906
O.J. Roberts (UCD) reports on behalf of the Fermi GBM Team:
"At 07:55:09.85 UT on the 7th of June 2015, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 150607A (trigger 455356512 / 150607330), which was also detected by Swift (D'Elia et al. 2015, GCN 17904). The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight using this position is about 130 degrees.
The GBM light curve shows several bright pulses over a duration (T90) of 31.8 s (50-300 keV). The time-averaged spectrum from T0-1.7 s to T0+30.1 s is well fit by power law function with an exponential high-energy cutoff. The power law index is -0.98 +/- 0.17 and the cutoff energy, parameterized as Epeak, is 137 +/- 22 keV.
The event fluence (10-1000 keV) in this time interval is (4.4 +/- 0.4)E-06 erg/cm^2. The 1.024-sec peak photon flux measured starting from T0+6.8 s in the 10-1000 keV band is 6.8 +/- 0.5 ph/s/cm^2.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN Circular #17907
D. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), V. D'Elia (ASDC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (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 150607A (trigger #642620) (D'Elia, et al., GCN Circ. 17904). The BAT ground-calculated position is RA, Dec = 140.015, 68.436 deg, which is
```
   RA(J2000)  =  09h 20m 03.6s 
   Dec(J2000) = +68d 26' 10.3" 
```
with an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment). The partial coding was 31%.
The mask-weighted light curve shows multiple peaks starting at ~T-2 sec, the brightest peak at ~T+8 sec, and ending at ~T+40 sec. T90 (15-350 keV) is 26.3 +- 0.7 sec (estimated error including systematics).
The time-averaged spectrum from T-0.19 to T+27.58 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 0.99 +- 0.41, and Epeak of 84.9 +- 40.1 keV (chi squared 40.9 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 2.3 +- 0.2 x 10^-6 erg/cm2 and the 1-sec peak flux measured from T+7.29 sec in the 15-150 keV band is 4.9 +- 0.5 ph/cm2/sec. A fit to a simple power law gives a photon index of 1.59 +- 0.10 (chi squared 48.1 for 57 d.o.f.). All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/642620/BA/
GCN Circular #17908
T. Kruehler (ESO) & A. A. Djupvik (NOT) report on behalf of a larger collaboration:
We observed the field of GRB 150607A (D'Elia et al., GCN 17904) using the Nordic Optical Telescope equipped with the ALFOSC camera.
A short series of photometry in BVRI filters was taken starting at 2015-06-07 21:43UT. The optical afterglow (D'Elia et al., GCN 17094) of GRB 150607A is well detected in our images. We measure R = 21.6 +/- 0.2 mag at 13.76 hours after the trigger, calibrated against magnitudes of nearby stars from the USNO-B1 catalog.

GCN Circular #17909
L. M. Z. Hagen (PSU) and V. D'Elia (ASDC) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 150607A 137 s after the BAT trigger (D'Elia et al., GCN Circ. 17904). A source consistent with the XRT position (Osborne et al. GCN Circ. 17905) is detected in the initial UVOT exposures.
The preliminary UVOT position is:

    RA  (J2000) =  09:19:57.20 = 139.98833 (deg.)
    Dec (J2000) = +68:26:10.3  =  68.43619 (deg.)

with an estimated uncertainty of 0.44 arc sec. (radius, 90% confidence).
Preliminary detections and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are:

Filter         T_start(s)   T_stop(s)      Exp(s)           Mag

white              137          286          146         18.10 +/- 0.07
white              628         1204          205         20.04 +/- 0.31
white             1358         7668          412        >20.55
v                  118          128            9         16.71 +/- 0.35
v                  678         7955          446        >19.02
b                  604         7463          367        >19.65
u                  348          598          245         18.88 +/- 0.27
u                  753         7258          352        >19.37
uvw1               728         7053          352        >19.60
uvm2              1084         6848          313        >19.74
uvw2               654         7874          568        >20.30

The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.07 in the direction of the burst (Schlegel et al. 1998).

GCN Circular #17910
D.N. Burrows (PSU), J.A. Kennea (PSU), B. Sbarufatti (INAF-OAB/PSU), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), A. Amaral-Rogers (U. Leicester), A. D'ai (INAF-IASFPA), A. Maselli (INAF-IASFPA) and V. D'Elia report on behalf of the Swift-XRT team:
We have analysed 7.7 ks of XRT data for GRB 150607A (D'Elia et al. GCN Circ. 17904), from 118 s to 47.9 ks after the BAT trigger. The data comprise 44 s in Windowed Timing (WT) mode (the first 8 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Osborne et al. (GCN Circ. 17905).
The light curve can be modelled with an initial power-law decay with an index of alpha=0.77 (+/-0.06), followed by a break at T+4216 s to an alpha of 1.11 (+0.26, -0.09).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.82 (+0.11, -0.10). The best-fitting absorption column is 2.2 (+/-0.4) x 10^21 cm^-2, in excess of the Galactic value of 5.7 x 10^20 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.0 x 10^-11 (5.1 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     2.2 (+/-0.4) x 10^21 cm^-2
Galactic foreground: 5.7 x 10^20 cm^-2
Excess significance: 6.5 sigma
Photon index:	     1.82 (+0.11, -0.10)
```
If the light curve continues to decay with a power-law decay index of 1.11, the count rate at T+24 hours will be 0.020 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 7.8 x 10^-13 (1.0 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/00642620.
This circular is an official product of the Swift-XRT team.
GCN Circular #17911
S. Golenetskii, R. Aptekar, D. Frederiks, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, and T. Cline on behalf of the Konus-Wind team, report:
The long-duration GRB 150607A (Swift-BAT trigger #642620: D'Elia, et al., GCN 17904; Palmer, et al., GCN 17907; Fermi GBM detection: Roberts, GCN 17906) triggered Konus-Wind at T0=28509.211 s UT (07:55:09.211).
The burst light curve shows a multipeak structure with a total duration of ~30 s. The emission is seen up to ~1 MeV.
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB150607_T28509/
As observed by Konus-Wind, the burst had a fluence of 4.2(-0.8,+1.3)x10^-6 erg/cm2, and a 64-ms peak flux, measured from T0-0.222 s, of 1.2(-0.5,+0.6)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The time-averaged spectrum of the burst (measured from T0 to T0+33.024 s) is best fit in the 20 keV - 2 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -1.4(-0.3,+0.4) and Ep = 173(-57,+183) keV (chi2 = 61/62 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2 (chi2 = 60/61 dof)
The spectrum near the maximum count rate (measured from T0+0.000 to T0+8.448 s) is best fit in the 20 keV - 2 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -1.4(-0.3,+0.4) and Ep = 152(-42,+108) keV (chi2 = 46/62 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2 (chi2 = 46/61 dof)
All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.
GCN Circular #17914
V. Toy (UMD), J. Capone (UMD), S.B. Cenko (NASA-GSFC), S. Veilleux (UMD), A. Cucchiara (NASA-GSFC), E. Troja (NASA-GSFC), and A. Kutyrev (NASA-GSFC) report on behalf of a larger collaboration:
We observed the field of GRB150607A (Swift trigger 642620, D'Elia et al., GCN 17904) with the Large Monolithic Imager (LMI) on the 4.3m Discovery Channel Telescope (DCT) at Happy Jack, AZ from 2015/06/08 03:42 to 2015/06/08 04:35 UTC (starting 19.8 hours after the trigger). A source is clearly detected at the location of the optical afterglow in r', i', and z'. Using nearby point sources from USNO-B1.0 for calibration, we measure r' = 22.03 +/- 0.03.
This magnitude is reported in AB magnitude and is not corrected for Galactic extinction in the direction of the GRB.
Compared to NOT observations on 06/07 (Kruehler & Djupvik, GCN 17908) the afterglow has a decay index of ~ t^-1.1.
We thank the staff of the Discovery Channel Telescope for assistance with these observations.
GCN Circular #17915
E. Mazaeva (IKI), R. Inasaridze (AAO), S. Nazarov (CrAO), Sh. Makandarashvili (AAO), A. Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 150607A (Swift trigger 642620, D'Elia et al., GCN 17904) with the AS-32 (0.7m) telescope of Abastumani Observatory (AAO) starting on June, 07 17:54:22, and with AZT-8 telescope of CrAO starting on June, 07 19:43:21. The afterglow of GRB 150607A (Kruehler et al., GCN 17908; Hagen et al., GCN 17909) is clearly detected in early observation in AAO. Preliminary photometry is following.
```
telescope  UT start   t-T0     Filter   Exp.     OT    Err.
                       (mid, days)       (s)

AS-32      17:54:22   0.45669  None     44*120   21.20 0.1
AZT-8      19:43:21   0.49864  R         6*180  >19.4 (3sigma)
```
Photometry is based on nearby USNO-B1.0 stars.

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Jochen Greiner, last update: 08-Jun-2015 [Disclaimer]