Gamma-ray Burst 150710A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:28:21 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     648437,   Seg_Num: 0
GRB_RA:          194.497d {+12h 57m 59s} (J2000),
                 194.691d {+12h 58m 46s} (current),
                 193.874d {+12h 55m 30s} (1950)
GRB_DEC:         +14.305d {+14d 18' 18"} (J2000),
                 +14.221d {+14d 13' 17"} (current),
                 +14.575d {+14d 34' 30"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       609 [cnts]    Image_Peak=89 [image_cnts]
TRIGGER_DUR:     0.032 [sec] 
TRIGGER_INDEX:   10318     E_range: 25-100 keV
BKG_INTEN:       26672 [cnts]
BKG_TIME:        1673.16 SOD {00:27:53.16} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17213 TJD;   191 DOY;   15/07/10
GRB_TIME:        1682.44 SOD {00:28:02.44} UT
GRB_PHI:          52.96 [deg]
GRB_THETA:         5.74 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     48.69 [sigma]
IMAGE_SIGNIF:    9.75 [sigma]
MERIT_PARAMS:     +1  +0  +0  -5  +2  +0  +0  +0 -16  +0 
SUN_POSTN:       108.94d {+07h 15m 45s}  +22.30d {+22d 17' 42"}
SUN_DIST:         80.81 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.26d {+02h 05m 03s}  +10.14d {+10d 08' 28"}
MOON_DIST:       150.61 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.05, 77.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      187.55, 18.86 [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 = 234.26,16.33 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:29:09 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.493d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.305d {+14d 18' 19"} (J2000)
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1731.67 SOD {00:28:51.67} UT,   49.2 [sec] since BAT Trigger Time
COUNTS:          1    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        0    Max_iter_allowed= 4
ERROR_CODE:      1
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        No source found in the image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:32:02 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.492d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.306d {+14d 18' 20"} (J2000)
POINT_ROLL:      290.804d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1736.42 SOD {00:28:56.42} UT,   54.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.748
N_STARS:         18
X_OFFSET:        449 [pixels]
Y_OFFSET:        593 [pixels]
X_MAX:           1408 [pixels]
Y_MAX:           1552 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00648437000msufc0053.fits
SUN_POSTN:       108.94d {+07h 15m 46s}  +22.29d {+22d 17' 41"}
SUN_DIST:         80.81 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.30d {+02h 05m 12s}  +10.15d {+10d 09' 02"}
MOON_DIST:       150.58 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.03, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:33:00 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.492d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.306d {+14d 18' 20"} (J2000)
POINT_ROLL:      290.804d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1736.42 SOD {00:28:56.42} UT,   54.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.748
N_STARS:         18
X_OFFSET:        449 [pixels]
Y_OFFSET:        593 [pixels]
X_MAX:           1408 [pixels]
Y_MAX:           1552 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00648437000msufc0053.fits
SUN_POSTN:       108.94d {+07h 15m 46s}  +22.29d {+22d 17' 41"}
SUN_DIST:         80.81 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.31d {+02h 05m 14s}  +10.15d {+10d 09' 10"}
MOON_DIST:       150.57 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.03, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:33:48 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.492d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.306d {+14d 18' 20"} (J2000)
ROLL:            290.804d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1736.42 SOD {00:28:56.42} UT,   54.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     458180951
X_OFFSET:        768 [pixels]
Y_OFFSET:        912 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       928
Y_GRB_POS:       1072
BINNING_INDEX:   1
IM_URL:          sw00648437000msuni0068.fits
SUN_POSTN:       108.94d {+07h 15m 46s}  +22.29d {+22d 17' 40"}
SUN_DIST:         80.81 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.31d {+02h 05m 16s}  +10.15d {+10d 09' 18"}
MOON_DIST:       150.57 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.03, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:33:27 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.492d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.306d {+14d 18' 20"} (J2000)
ROLL:            290.804d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1736.42 SOD {00:28:56.42} UT,   54.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     458180951
X_OFFSET:        768 [pixels]
Y_OFFSET:        912 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       928
Y_GRB_POS:       1072
BINNING_INDEX:   1
IM_URL:          sw00648437000msuni0068.fits
SUN_POSTN:       108.94d {+07h 15m 46s}  +22.29d {+22d 17' 41"}
SUN_DIST:         80.81 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.31d {+02h 05m 15s}  +10.15d {+10d 09' 14"}
MOON_DIST:       150.57 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.03, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:33:44 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     648437,   Seg_Num: 0
GRB_RA:          194.497d {+12h 57m 59s} (J2000),
                 194.691d {+12h 58m 46s} (current),
                 193.874d {+12h 55m 30s} (1950)
GRB_DEC:         +14.305d {+14d 18' 18"} (J2000),
                 +14.221d {+14d 13' 17"} (current),
                 +14.575d {+14d 34' 30"} (1950)
GRB_DATE:        17213 TJD;   191 DOY;   15/07/10
GRB_TIME:        1682.73 SOD {00:28:02.73} UT
TRIGGER_INDEX:   10318
GRB_PHI:          52.96 [deg]
GRB_THETA:         5.74 [deg]
DELTA_TIME:      3.00 [sec]
TRIGGER_DUR:     0.032 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     48.69 [sigma]
IMAGE_SIGNIF:    9.75 [sigma]
LC_URL:          sw00648437000msb.lc
SUN_POSTN:       108.94d {+07h 15m 46s}  +22.29d {+22d 17' 41"}
SUN_DIST:         80.81 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.31d {+02h 05m 15s}  +10.15d {+10d 09' 17"}
MOON_DIST:       150.57 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.05, 77.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      187.55, 18.86 [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 = 234.26,16.33 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:35:43 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     648437,   Seg_Num: 0
GRB_RA:          194.4715d {+12h 57m 53.15s} (J2000),
                 194.6648d {+12h 58m 39.55s} (current),
                 193.8485d {+12h 55m 23.64s} (1950)
GRB_DEC:         +14.3180d {+14d 19' 04.7"} (J2000),
                 +14.2344d {+14d 14' 03.7"} (current),
                 +14.5879d {+14d 35' 16.6"} (1950)
GRB_ERROR:       4.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1743.00 SOD {00:29:03.00} UT,   60.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       108.94d {+07h 15m 47s}  +22.29d {+22d 17' 40"}
SUN_DIST:         80.78 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.33d {+02h 05m 20s}  +10.16d {+10d 09' 35"}
MOON_DIST:       150.53 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      309.95, 77.10 [deg] galactic lon,lat of the burst
ECL_COORDS:      187.52, 18.86 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:39:38 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 15"} (J2000)
POINT_ROLL:      290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1948.47 SOD {00:32:28.47} UT,   266.0 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.804
N_STARS:         35
X_OFFSET:        209 [pixels]
Y_OFFSET:        353 [pixels]
X_MAX:           1648 [pixels]
Y_MAX:           1792 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00648437000msufc0266.fits
SUN_POSTN:       108.95d {+07h 15m 47s}  +22.29d {+22d 17' 39"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.37d {+02h 05m 29s}  +10.17d {+10d 10' 11"}
MOON_DIST:       150.53 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:39:12 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 15"} (J2000)
POINT_ROLL:      290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1948.47 SOD {00:32:28.47} UT,   266.0 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.804
N_STARS:         35
X_OFFSET:        209 [pixels]
Y_OFFSET:        353 [pixels]
X_MAX:           1648 [pixels]
Y_MAX:           1792 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00648437000msufc0266.fits
SUN_POSTN:       108.95d {+07h 15m 47s}  +22.29d {+22d 17' 39"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.37d {+02h 05m 28s}  +10.17d {+10d 10' 07"}
MOON_DIST:       150.53 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:40:31 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 15"} (J2000)
ROLL:            290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1948.47 SOD {00:32:28.47} UT,   266.0 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     458181163
X_OFFSET:        768 [pixels]
Y_OFFSET:        912 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       928
Y_GRB_POS:       1072
BINNING_INDEX:   1
IM_URL:          sw00648437000msuni0281.fits
SUN_POSTN:       108.95d {+07h 15m 47s}  +22.29d {+22d 17' 38"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.38d {+02h 05m 31s}  +10.17d {+10d 10' 19"}
MOON_DIST:       150.52 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:40:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 15"} (J2000)
ROLL:            290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1948.47 SOD {00:32:28.47} UT,   266.0 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     458181163
X_OFFSET:        768 [pixels]
Y_OFFSET:        912 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       928
Y_GRB_POS:       1072
BINNING_INDEX:   1
IM_URL:          sw00648437000msuni0281.fits
SUN_POSTN:       108.95d {+07h 15m 47s}  +22.29d {+22d 17' 38"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.38d {+02h 05m 32s}  +10.17d {+10d 10' 23"}
MOON_DIST:       150.52 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:48:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 16"} (J2000)
ROLL:            290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  2549.59 SOD {00:42:29.59} UT,   867.2 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     458181764
X_OFFSET:        768 [pixels]
Y_OFFSET:        912 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       928
Y_GRB_POS:       1072
BINNING_INDEX:   1
IM_URL:          sw00648437000msuni0882.fits
SUN_POSTN:       108.95d {+07h 15m 49s}  +22.29d {+22d 17' 36"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.45d {+02h 05m 48s}  +10.19d {+10d 11' 29"}
MOON_DIST:       150.46 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:44:59 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     648437,   Seg_Num: 0
GRB_RA:          194.4710d {+12h 57m 53.04s} (J2000),
                 194.6643d {+12h 58m 39.43s} (current),
                 193.8480d {+12h 55m 23.52s} (1950)
GRB_DEC:         +14.3183d {+14d 19' 05.8"} (J2000),
                 +14.2347d {+14d 14' 04.8"} (current),
                 +14.5882d {+14d 35' 17.6"} (1950)
GRB_ERROR:       3.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  1743.00 SOD {00:29:03.00} UT,   60.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       108.95d {+07h 15m 48s}  +22.29d {+22d 17' 37"}
SUN_DIST:         80.77 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.42d {+02h 05m 41s}  +10.18d {+10d 11' 00"}
MOON_DIST:       150.46 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      309.94, 77.10 [deg] galactic lon,lat of the burst
ECL_COORDS:      187.52, 18.86 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:46:54 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 16"} (J2000)
POINT_ROLL:      290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  2549.59 SOD {00:42:29.59} UT,   867.2 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.647
N_STARS:         57
X_OFFSET:        209 [pixels]
Y_OFFSET:        353 [pixels]
X_MAX:           1648 [pixels]
Y_MAX:           1792 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00648437000msufc0867.fits
SUN_POSTN:       108.95d {+07h 15m 48s}  +22.29d {+22d 17' 36"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.44d {+02h 05m 45s}  +10.19d {+10d 11' 18"}
MOON_DIST:       150.47 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Jul 15 00:47:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 16"} (J2000)
POINT_ROLL:      290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  2549.59 SOD {00:42:29.59} UT,   867.2 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.647
N_STARS:         57
X_OFFSET:        209 [pixels]
Y_OFFSET:        353 [pixels]
X_MAX:           1648 [pixels]
Y_MAX:           1792 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00648437000msufc0867.fits
SUN_POSTN:       108.95d {+07h 15m 49s}  +22.29d {+22d 17' 36"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.44d {+02h 05m 46s}  +10.19d {+10d 11' 20"}
MOON_DIST:       150.47 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [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:     Fri 10 Jul 15 00:47:58 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     648437,   Seg_Num: 0
POINT_RA:        194.491d {+12h 57m 58s} (J2000)
POINT_DEC:       +14.304d {+14d 18' 16"} (J2000)
ROLL:            290.803d
IMG_START_DATE:  17213 TJD;   191 DOY;   15/07/10
IMG_START_TIME:  2549.59 SOD {00:42:29.59} UT,   867.2 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     458181764
X_OFFSET:        768 [pixels]
Y_OFFSET:        912 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       928
Y_GRB_POS:       1072
BINNING_INDEX:   1
IM_URL:          sw00648437000msuni0882.fits
SUN_POSTN:       108.95d {+07h 15m 49s}  +22.29d {+22d 17' 36"}
SUN_DIST:         80.80 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       31.45d {+02h 05m 48s}  +10.19d {+10d 11' 27"}
MOON_DIST:       150.46 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:      310.02, 77.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      187.54, 18.85 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN Circular #18000
Swift trigger 648437: A GRB or a burst from 1RXS J125754.7+141850
M. G. Bernardini (INAF-OAB), S. D. Barthelmy (GSFC), P. D'Avanzo (INAF-OAB), A. Melandri (INAF-OAB), D. M. Palmer (LANL), B. Sbarufatti (INAF-OAB/PSU) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 00:28:02 UT, the Swift Burst Alert Telescope (BAT) triggered and located a short burst consistent with the location of the ROSAT faint source 1RXS J125754.7+14185 (trigger=648437). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 194.497, +14.305 which is
```
   RA(J2000) = 12h 57m 59s     
   Dec(J2000) = +14d 18' 18"   
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single spike structure with a duration of about 0.25 sec. The peak count rate was ~8000 counts/sec (15-350 keV), at ~0 sec after the trigger.
The XRT began observing the field at 00:28:51.6 UT, 49.2 seconds after the BAT trigger. Using promptly downlinked data we find an X-ray source with an enhanced position: RA, Dec 194.4710, 14.3183 which is equivalent to:
```
   RA(J2000)  = 12h 57m 53.03s
   Dec(J2000) = +14d 19' 05.8"
```
with an uncertainty of 3.5 arcseconds (radius, 90% containment). This location is 102 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper. We cannot determine whether the source is fading at the present time. This position is 28.6 arcseconds from that of a known X-ray source: 1RXS J125754.7+141850 in the ROSAT RASSFSC catalogue.
UVOT took a finding chart exposure of 150 seconds with the White filter starting 53 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 none of the XRT error circle. 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.
This source location is consistent with the source 1RXS J125754.7+141850, an object in the ROSAT RASSFSC. This catalog has 106k sources, and so the possibility of a chance coincidence cannot be ruled out. This burst is comparable in hardness and other aspects to a typical short GRB. For this reason, we cannot confirm whether this burst comes from the previously-known source or a new sGRB with the immediately-available data.
The complete downlinked dataset and further observations will be required to determine the nature of this source.
Burst Advocate for this burst is M. G. Bernardini (grazia.bernardini AT brera.inaf.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 Circular #18001
Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Chris Klein (UCB), Ori Fox (UCB), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (ORAU/GSFC), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), Jos=C3=A9 A. de Diego (UNAM), Leonid Georgiev (UNAM), Jes=C3=BAs Gonz=C3=A1lez (UNAM), Carlos Rom=C3=A1n-Z=C3=BA=C3=B1iga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley (GSFC) report:
We observed the field of possible GRB 150710A (trigger 648437; Bernardini, et al., GCN 18000) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astron=C3=B3mico Nacional on Sierra San Pedro M=C3=A1rtir from 2015/07 10.16 to 2015/07 10.20 UTC (3.47 to 4.31 hours after the BAT trigger), obtaining a total of 0.71 hours exposure in the r, i, and z bands.
For a source within the Swift-XRT error circle, in comparison with the SD= SS DR9 catalog, we obtain the following upper limits (3-sigma):
```
  r > 23.4
  i > 23.2
  z > 19.4
```
These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the possible GRB.
We thank the staff of the Observatorio Astron=C3=B3mico Nacional in San Pedro M=C3=A1rtir. Further observations are ongoing.
GCN Circular #18002
S. D. Barthelmy (GSFC), M. G. Bernardini (INAF-OAB), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-61 to T+242 sec from the recent telemetry downlink, we report further analysis of BAT GRB 150710A (trigger #648437) (Bernardini, et al., GCN Circ. 18000). The BAT ground-calculated position is RA, Dec = 194.484, 14.309 deg, which is
```
   RA(J2000)  =  12h 57m 56.3s 
   Dec(J2000) = +14d 18' 32.3" 
```
with an uncertainty of 1.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%.
The mask-weighted light curve shows two, possibly 4, overlapping peaks. T90 (15-350 keV) is 0.15 +- 0.06 sec (estimated error including systematics).
The time-averaged spectrum from T+0.02 to T+0.22 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 0.63 +- 0.20. The fluence in the 15-150 keV band is 7.1 +- 0.9 x 10^-8 erg/cm2. The 1-sec peak photon flux measured from T-0.38 sec in the 15-150 keV band is 0.7 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
These results are entirely consistant with a short GRB.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/648437/BA/
GCN Circular #18003
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 short-duration GRB 150710A (Swift trigger 648437: Bernardini, et al., GCN Circ. 18000) triggered Konus-Wind at T0=3D1681.682 s UT (00:28:01.682).
The burst light curve shows a short, double-peaked pulse with a total duration of ~0.1 s.
As observed by Konus-Wind, the burst had a fluence of (3.7 =C2=B1 0.7)x10^-7 erg/cm2, and a 16-ms peak flux, measured from T0-0.048 s, of (7.6 =C2=B1 1.5)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
Since the bulk of the burst emission was detected before the trigger, the spectral analysis was performed using the KW 3-channel light curve data.
Modeling the 3-channel time-integrated spectrum (from T0-0.048 s to T0+0.048 s) by a power law with exponential cutoff (CPL) model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) yields alpha =3D -0.28 =C2=B1 0.54, and Ep =3D 308 =C2=B1 70 keV.
The K-W light curve of this burst is available at http://www.ioffe.rssi.ru/LEA/GRBs/GRB150710_T01681/
Following Bernardini, et al. (GCN Circ. 18000), we note, that the burst, as observed by Konus-Wind, is comparable in hardness and other aspects to a typical short GRB from the KW sample. The figure showing the GRB 150710A position in the hardness-duration diagram (logT50-logHR32) of 1143 KW bright GRBs is available at http://www.ioffe.rssi.ru/LEA/GRBs/GRB150710_T01681/HR32vsT50.png The contours denote the 1, 2, and 3 sigma confidence regions for two-dimensional Gaussian distributions. The vertical dashed line at T50=3D0.6 s marks the boundary between short and long KW GRBs.
All the quoted errors are estimated at the 1 sigma confidence level. All the presented results are preliminary.
GCN Circular #18005
M.G. Bernardini, P. D'Avanzo, A. Melandri, S. Campana, G. Tagliaferri (INAF-OAB), D. Burrows (PSU), K. Page and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team:
We analyzed the full dataset of Swift-XRT observations of the Swift trigger 648437 (Bernardini et al., GCN Circ. 18000), classified as short GRB 150710A (Barthelmy et al., GCN Circ. 18002, Golenetskii et al. GCN Circ. 18003), comprising 11.2 ks in Photon Counting (PC) mode. One X-ray source has been detected within the BAT error circle at the following position:
```
  RA (J2000.0):  194.47045  =3D 12:57:52.91
  Dec (J2000.0): 14.31807 =3D +14:19:05.0
  Error: 2.8 arcsec (radius, 90% conf.)
```
This position is consistent with the location of a ROSAT faint source 1RXS J125754.7+14185. In an initial 0.98 ks observation carried out between T+57s and T+1056s, the source has an initial count-rate of (3.22E-02 =C2=B1 6.3E-03) ct/s. Then in a subsequent 10 ks observation, carried out between T+4.9 ks and T+34.5 ks, it is no longer detected down to a 3sigma UL of 1.3E-3 ct/s. The source is near the edge of the Virgo cluster, but the non-detection of any host galaxy by RATIR (Butler et al., GCN Circ. 18001) argues against the possibility of this being a giant SGR flare from a galaxy in the Virgo cluster. Given the observed fading, we propose this source as the X-ray counterpart of GRB 150710A.
We also note the possible presence of a second source at the following=20 position:
```
  RA (J2000.0):  194.4810088073  =3D  12:57:55.44
  Dec (J2000.0): 14.317574983  =3D  +14:19:03.3
  Error: 6.0 arcsec (radius, 90% conf.)
```
also consistent with the location of 1RXS J125754.7+14185. The source is detected at a low significance, and it is not possible with present data to assess if is real or not. Further observation can confirm if this second source is real and if it is possibly related to 1RXS J125754.7+14185. Otherwise, we cannot exclude that the observed X-ray emission from Source #1 is due to a brightening from 1RXS J125754.7+14185.
This circular is an official product of the Swift-XRT team.
GCN Circular #18006
V. Lipunov (Lomonosov Moscow State University)
There is SDSS9 galaxy at second XRT candidate postion (Bernardini et al., GCN 18005) J125755.36+141905.7 . Rmag = 22.1, gmag = 24 That is correspond to z ~ 1 for big galaxy like to Milky Way. The follow up observation for redshift is needed.
The message may be cited.
GCN Circular #18008
M. De Pasquale (UCL-MSSL) and M.G. Bernardini (INAF/OAB) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 150710A 54 s after the BAT trigger (Bernardini et al., GCN Circ. 18000). No optical afterglow consistent with the position of the XRT sources (Bernardini et al., GCN Circ 18005) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposure and subsequent exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC            54          204          147         >20.6
u_FC               266          516          246         >19.9

white               54         1017          334         >21.1
v                  595         1050           41         >18.1
b                  521          714           39         >19.1
u                  266          516          285         >20.0
uw1                645          837           39         >18.5
um2                620          812           39 >18.2
uw2                571         1043           58         >19.0
```
The magnitudes in the table 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).

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Jochen Greiner, last update: 10-Jul-2015 [Disclaimer]