Gamma-ray Burst 141005A

(All information courtesy of the instrument teams.)

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:13:32 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     614415,   Seg_Num: 0
GRB_RA:          291.108d {+19h 24m 26s} (J2000),
                 291.241d {+19h 24m 58s} (current),
                 290.657d {+19h 22m 38s} (1950)
GRB_DEC:         +36.069d {+36d 04' 10"} (J2000),
                 +36.099d {+36d 05' 57"} (current),
                 +35.970d {+35d 58' 13"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5064 [cnts]    Image_Peak=116 [image_cnts]
TRIGGER_DUR:     1.408 [sec] 
TRIGGER_INDEX:   485     E_range: 50-350 keV
BKG_INTEN:       37711 [cnts]
BKG_TIME:        18763.38 SOD {05:12:43.38} UT
BKG_DUR:         16 [sec]
GRB_DATE:        16935 TJD;   278 DOY;   14/10/05
GRB_TIME:        18786.55 SOD {05:13:06.55} UT
GRB_PHI:          92.41 [deg]
GRB_THETA:        38.63 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     26.60 [sigma]
IMAGE_SIGNIF:    7.95 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  -2  +0  +1 +19  +0 
SUN_POSTN:       190.94d {+12h 43m 45s}   -4.70d {-04d 42' 03"}
SUN_DIST:        101.09 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.25d {+21h 52m 59s}   -8.53d {-08d 31' 50"}
MOON_DIST:        56.58 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.73,  9.51 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      302.46, 57.15 [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 = 173.34,20.53 [deg]. 
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=434178789).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:14:00 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      58
TRIGGER_NUM:     434178789
GRB_RA:          296.880d {+19h 47m 31s} (J2000),
                 296.995d {+19h 47m 59s} (current),
                 296.491d {+19h 45m 58s} (1950)
GRB_DEC:         +45.420d {+45d 25' 12"} (J2000),
                 +45.457d {+45d 27' 26"} (current),
                 +45.295d {+45d 17' 42"} (1950)
GRB_ERROR:       3.35 [deg radius, statistical only]
DATA_SIGNIF:     31.60 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        16935 TJD;   278 DOY;   14/10/05
GRB_TIME:        18786.97 SOD {05:13:06.97} UT
GRB_PHI:         224.00 [deg]
GRB_THETA:       109.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4143 (Gnd S/W Version number)
SUN_POSTN:       190.94d {+12h 43m 45s}   -4.70d {-04d 42' 04"}
SUN_DIST:        104.58 [deg]   Sun_angle= -7.1 [hr] (East of Sun)
MOON_POSTN:      328.25d {+21h 53m 01s}   -8.53d {-08d 31' 45"}
MOON_DIST:        60.84 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       79.19,  9.99 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      317.47, 64.49 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2014/bn141005217/quicklook/glg_lc_medres34_bn141005217.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 until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=6770).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:13:36 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      48
TRIGGER_NUM:     434178789
GRB_RA:          290.250d {+19h 21m 00s} (J2000),
                 290.372d {+19h 21m 29s} (current),
                 289.836d {+19h 19m 21s} (1950)
GRB_DEC:         +40.900d {+40d 53' 60"} (J2000),
                 +40.929d {+40d 55' 43"} (current),
                 +40.805d {+40d 48' 17"} (1950)
GRB_ERROR:       6.78 [deg radius, statistical plus systematic]
GRB_INTEN:       474 [cnts/sec]
DATA_SIGNIF:     19.10 [sigma]
INTEG_TIME:      1.024 [sec]
GRB_DATE:        16935 TJD;   278 DOY;   14/10/05
GRB_TIME:        18786.97 SOD {05:13:06.97} UT
GRB_PHI:         231.00 [deg]
GRB_THETA:       110.00 [deg]
DATA_TIME_SCALE: 1.0240 [sec]
HARD_RATIO:      0.50
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      73%  GRB
2nd_MOST_LIKELY:  22%  Cyg X-1
DETECTORS:       0,0,0, 0,0,0, 0,0,1, 0,0,1, 0,0,
SUN_POSTN:       190.94d {+12h 43m 45s}   -4.70d {-04d 42' 03"}
SUN_DIST:        100.20 [deg]   Sun_angle= -6.6 [hr] (East of Sun)
MOON_POSTN:      328.25d {+21h 53m 00s}   -8.53d {-08d 31' 49"}
MOON_DIST:        60.49 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       72.85, 12.24 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      303.84, 61.98 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2014/bn141005217/quicklook/glg_lc_medres34_bn141005217.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 305.08,4.40 [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=614415).

GCN NOTICE

TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Sun 05 Oct 14 05:13:51 UT
NOTICE_TYPE:    INTEGRAL SPI ACS Trigger
TRIGGER_NUM:    6770,   Sub_Num: 0
GRB_INTEN:      9.08 [sigma]   
GRB_TIME:       18784.83 SOD {05:13:04.83} UT
GRB_DATE:       16935 TJD;   278 DOY;   14/10/05
COMMENTS:       INTEGRAL SPI_ACS GRB Trigger.
COMMENTS:       Time_Scale=2.0000 and Time_Error=1.0000.
COMMENTS:
COMMENTS:       NOTE: This SPIACS event is temporally(2.0<100sec) coincident with the FERMI_GBM event (trignum=434178789).
COMMENTS:
COMMENTS:       The SPIACS lightcurve can be found at:
COMMENTS:       ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2014-10/2014-10-05T05-13-04.6328-052+30-15248-0.lc

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:14:52 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.070d {+19h 24m 17s} (J2000)
POINT_DEC:       +36.066d {+36d 03' 58"} (J2000)
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18879.50 SOD {05:14:39.50} UT,   93.0 [sec] since BAT Trigger Time
COUNTS:          21    Min_needed= 20
STD_DEV:         11.52   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        2    Max_iter_allowed= 4
ERROR_CODE:      3
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        Standard deviation too large.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:16:58 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     614415,   Seg_Num: 0
GRB_RA:          291.108d {+19h 24m 26s} (J2000),
                 291.241d {+19h 24m 58s} (current),
                 290.657d {+19h 22m 38s} (1950)
GRB_DEC:         +36.069d {+36d 04' 10"} (J2000),
                 +36.099d {+36d 05' 57"} (current),
                 +35.970d {+35d 58' 13"} (1950)
GRB_DATE:        16935 TJD;   278 DOY;   14/10/05
GRB_TIME:        18786.55 SOD {05:13:06.55} UT
TRIGGER_INDEX:   485
GRB_PHI:          92.41 [deg]
GRB_THETA:        38.63 [deg]
DELTA_TIME:      -76.00 [sec]
TRIGGER_DUR:     1.408 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     26.60 [sigma]
IMAGE_SIGNIF:    7.95 [sigma]
LC_URL:          sw00614415000msb.lc
SUN_POSTN:       190.94d {+12h 43m 45s}   -4.70d {-04d 42' 06"}
SUN_DIST:        101.09 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.28d {+21h 53m 08s}   -8.52d {-08d 31' 14"}
MOON_DIST:        56.60 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.73,  9.51 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      302.46, 57.15 [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 = 173.34,20.53 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:19:14 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     614415,   Seg_Num: 0
GRB_RA:          291.0931d {+19h 24m 22.34s} (J2000),
                 291.2263d {+19h 24m 54.31s} (current),
                 290.6419d {+19h 22m 34.05s} (1950)
GRB_DEC:         +36.0951d {+36d 05' 42.3"} (J2000),
                 +36.1248d {+36d 07' 29.1"} (current),
                 +35.9959d {+35d 59' 45.3"} (1950)
GRB_ERROR:       3.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18890.00 SOD {05:14:50.00} UT,   103.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       190.94d {+12h 43m 46s}   -4.70d {-04d 42' 09"}
SUN_DIST:        101.07 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.30d {+21h 53m 13s}   -8.51d {-08d 30' 51"}
MOON_DIST:        56.63 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.75,  9.53 [deg] galactic lon,lat of the burst
ECL_COORDS:      302.45, 57.18 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:19:25 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.070d {+19h 24m 17s} (J2000)
POINT_DEC:       +36.066d {+36d 03' 58"} (J2000)
POINT_ROLL:      272.168d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18880.33 SOD {05:14:40.33} UT,   93.8 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.733
N_STARS:         190
X_OFFSET:        42 [pixels]
Y_OFFSET:        453 [pixels]
X_MAX:           1481 [pixels]
Y_MAX:           1892 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00614415000msufc0093.fits
SUN_POSTN:       190.94d {+12h 43m 46s}   -4.70d {-04d 42' 09"}
SUN_DIST:        101.06 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.31d {+21h 53m 13s}   -8.51d {-08d 30' 49"}
MOON_DIST:        56.62 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:19:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.070d {+19h 24m 17s} (J2000)
POINT_DEC:       +36.066d {+36d 03' 58"} (J2000)
POINT_ROLL:      272.168d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18880.33 SOD {05:14:40.33} UT,   93.8 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.733
N_STARS:         190
X_OFFSET:        42 [pixels]
Y_OFFSET:        453 [pixels]
X_MAX:           1481 [pixels]
Y_MAX:           1892 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00614415000msufc0093.fits
SUN_POSTN:       190.94d {+12h 43m 46s}   -4.70d {-04d 42' 09"}
SUN_DIST:        101.06 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.31d {+21h 53m 15s}   -8.51d {-08d 30' 44"}
MOON_DIST:        56.63 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:20:57 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.070d {+19h 24m 17s} (J2000)
POINT_DEC:       +36.066d {+36d 03' 58"} (J2000)
ROLL:            272.168d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18880.33 SOD {05:14:40.33} UT,   93.8 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     434178892
X_OFFSET:        601 [pixels]
Y_OFFSET:        1012 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       761
Y_GRB_POS:       1172
BINNING_INDEX:   1
IM_URL:          sw00614415000msuni0106.fits
SUN_POSTN:       190.94d {+12h 43m 46s}   -4.70d {-04d 42' 10"}
SUN_DIST:        101.06 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.32d {+21h 53m 17s}   -8.51d {-08d 30' 33"}
MOON_DIST:        56.63 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:21:14 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.070d {+19h 24m 17s} (J2000)
POINT_DEC:       +36.066d {+36d 03' 58"} (J2000)
ROLL:            272.168d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18880.33 SOD {05:14:40.33} UT,   93.8 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     434178892
X_OFFSET:        601 [pixels]
Y_OFFSET:        1012 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       761
Y_GRB_POS:       1172
BINNING_INDEX:   1
IM_URL:          sw00614415000msuni0106.fits
SUN_POSTN:       190.94d {+12h 43m 46s}   -4.70d {-04d 42' 10"}
SUN_DIST:        101.06 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.32d {+21h 53m 18s}   -8.51d {-08d 30' 30"}
MOON_DIST:        56.63 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:26:48 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.067d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 00"} (J2000)
POINT_ROLL:      272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19135.68 SOD {05:18:55.68} UT,   349.1 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        1.599
N_STARS:         190
X_OFFSET:        282 [pixels]
Y_OFFSET:        693 [pixels]
X_MAX:           1241 [pixels]
Y_MAX:           1652 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00614415000msufc0349.fits
SUN_POSTN:       190.94d {+12h 43m 47s}   -4.70d {-04d 42' 16"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.38d {+21h 53m 31s}   -8.49d {-08d 29' 32"}
MOON_DIST:        56.65 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:27:09 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.067d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 00"} (J2000)
POINT_ROLL:      272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19135.68 SOD {05:18:55.68} UT,   349.1 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        1.599
N_STARS:         190
X_OFFSET:        282 [pixels]
Y_OFFSET:        693 [pixels]
X_MAX:           1241 [pixels]
Y_MAX:           1652 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00614415000msufc0349.fits
SUN_POSTN:       190.95d {+12h 43m 47s}   -4.70d {-04d 42' 16"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.38d {+21h 53m 32s}   -8.49d {-08d 29' 28"}
MOON_DIST:        56.65 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:27:47 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     614415,   Seg_Num: 0
GRB_RA:          291.0930d {+19h 24m 22.32s} (J2000),
                 291.2262d {+19h 24m 54.28s} (current),
                 290.6418d {+19h 22m 34.03s} (1950)
GRB_DEC:         +36.0949d {+36d 05' 41.6"} (J2000),
                 +36.1246d {+36d 07' 28.4"} (current),
                 +35.9957d {+35d 59' 44.6"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  18890.00 SOD {05:14:50.00} UT,   103.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       190.95d {+12h 43m 47s}   -4.70d {-04d 42' 17"}
SUN_DIST:        101.07 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.39d {+21h 53m 33s}   -8.49d {-08d 29' 22"}
MOON_DIST:        56.66 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.75,  9.53 [deg] galactic lon,lat of the burst
ECL_COORDS:      302.45, 57.18 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:28:08 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.067d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 00"} (J2000)
ROLL:            272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19135.68 SOD {05:18:55.68} UT,   349.1 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     434179148
X_OFFSET:        601 [pixels]
Y_OFFSET:        1012 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       761
Y_GRB_POS:       1172
BINNING_INDEX:   1
IM_URL:          sw00614415000msuni0362.fits
SUN_POSTN:       190.95d {+12h 43m 47s}   -4.71d {-04d 42' 17"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.39d {+21h 53m 34s}   -8.49d {-08d 29' 18"}
MOON_DIST:        56.66 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:28:26 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.067d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 00"} (J2000)
ROLL:            272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19135.68 SOD {05:18:55.68} UT,   349.1 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     434179148
X_OFFSET:        601 [pixels]
Y_OFFSET:        1012 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       761
Y_GRB_POS:       1172
BINNING_INDEX:   1
IM_URL:          sw00614415000msuni0362.fits
SUN_POSTN:       190.95d {+12h 43m 47s}   -4.71d {-04d 42' 17"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.39d {+21h 53m 35s}   -8.49d {-08d 29' 15"}
MOON_DIST:        56.66 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 #16882
V. D'Elia (ASDC), S. D. Barthelmy (GSFC), L. Izzo (URoma/ICRA), D. M. Palmer (LANL), B. Sbarufatti (INAF-OAB/PSU) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 05:13:06 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 141005A (trigger=614415). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 291.108, +36.069, which is
```
   RA(J2000)  =  19h 24m 26s
   Dec(J2000) = +36d 04' 10"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a single peak with a duration of about 5 sec. The peak count rate was ~3000 counts/sec (15-350 keV), at ~0 sec after the trigger.
The XRT began observing the field at 05:14:39.5 UT, 92.9 seconds after the BAT trigger. Using promptly downlinked data we find a fading, uncatalogued X-ray source located at RA, Dec 291.09313, 36.09517 which is equivalent to:
```
   RA(J2000)  = 19h 24m 22.35s
   Dec(J2000) = +36d 05' 42.6"
```
with an uncertainty of 3.8 arcseconds (radius, 90% containment). This location is 103 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 1.56 x 10^21 cm^-2 (Willingale et al. 2013).
UVOT took a finding chart exposure of 250 seconds with the U filter starting 93 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 18.0 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.17.
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 05 Oct 14 05:33:06 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.068d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 01"} (J2000)
POINT_ROLL:      272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19663.29 SOD {05:27:43.29} UT,   876.7 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.436
N_STARS:         190
X_OFFSET:        42 [pixels]
Y_OFFSET:        453 [pixels]
X_MAX:           1481 [pixels]
Y_MAX:           1892 [pixels]
DET_THRESH:      6
PHOTO_THRESH:    3
SL_URL:          sw00614415000msufc0876.fits
SUN_POSTN:       190.95d {+12h 43m 48s}   -4.71d {-04d 42' 22"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.44d {+21h 53m 46s}   -8.47d {-08d 28' 26"}
MOON_DIST:        56.67 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Oct 14 05:33:30 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.068d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 01"} (J2000)
POINT_ROLL:      272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19663.29 SOD {05:27:43.29} UT,   876.7 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.436
N_STARS:         190
X_OFFSET:        42 [pixels]
Y_OFFSET:        453 [pixels]
X_MAX:           1481 [pixels]
Y_MAX:           1892 [pixels]
DET_THRESH:      6
PHOTO_THRESH:    3
SL_URL:          sw00614415000msufc0876.fits
SUN_POSTN:       190.95d {+12h 43m 48s}   -4.71d {-04d 42' 22"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.44d {+21h 53m 47s}   -8.47d {-08d 28' 22"}
MOON_DIST:        56.67 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:34:19 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.068d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 01"} (J2000)
ROLL:            272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19663.29 SOD {05:27:43.29} UT,   876.7 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     434179675
X_OFFSET:        601 [pixels]
Y_OFFSET:        1012 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       761
Y_GRB_POS:       1172
BINNING_INDEX:   1
IM_URL:          sw00614415000msuni0889.fits
SUN_POSTN:       190.95d {+12h 43m 48s}   -4.71d {-04d 42' 23"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.45d {+21h 53m 49s}   -8.47d {-08d 28' 14"}
MOON_DIST:        56.68 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 05 Oct 14 05:34:30 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     614415,   Seg_Num: 0
POINT_RA:        291.068d {+19h 24m 16s} (J2000)
POINT_DEC:       +36.067d {+36d 04' 01"} (J2000)
ROLL:            272.167d
IMG_START_DATE:  16935 TJD;   278 DOY;   14/10/05
IMG_START_TIME:  19663.29 SOD {05:27:43.29} UT,   876.7 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     434179675
X_OFFSET:        601 [pixels]
Y_OFFSET:        1012 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       761
Y_GRB_POS:       1172
BINNING_INDEX:   1
IM_URL:          sw00614415000msuni0889.fits
SUN_POSTN:       190.95d {+12h 43m 48s}   -4.71d {-04d 42' 23"}
SUN_DIST:        101.05 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      328.45d {+21h 53m 49s}   -8.47d {-08d 28' 12"}
MOON_DIST:        56.68 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:       68.71,  9.54 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      302.40, 57.16 [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 #16884
D. A. Perley (Caltech) reports on behalf of a larger collaboration:
The Palomar 60-inch robotic telescope automatically triggered on the Swift-BAT alert for GRB 141005A (GCN 16882, D'Elia et al.) and began observations of the field at 05:16:28 UT, 202 seconds after the BAT trigger. A sequence of cycling 60-second r, i, and z band images were acquired, ending at 05:33:20 UT.
In the initial images we identify a source inside the SPER XRT error circle at the following position:
```
RA  = 19:24:22.392
dec = +36:05:42.26
(J2000, +/- 0.3")
```
The source is faint and probably fading, from r = 20.6 +/- 0.2 and i = 20.0 +/- 0.2 in the initial exposures to r = 21.4 +/- 0.3 and i = 21.3 +/- 0.4 in the final exposures. The source is also present in archival imaging of the field from SDSS. Measuring the flux of the source in the same aperture in these images yields magnitudes of g=21.9, r=21.6, i=21.3, z=20.7.
These observations suggest a faint optical afterglow superimposed on a host galaxy or Galactic foreground star. More observations are encouraged to characterize this object.
GCN Circular #16885
Owen Littlejohns (ASU), 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), 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 GRB 141005A (D'Elia, et al., GCN 16882) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astron=C3=B3mico Nacion= al on Sierra San Pedro M=C3=A1rtir from 2014/10 5.22 to 2014/10 5.27 UTC (0.05 to 1.34 hours after the BAT trigger), obtaining a total of 1.07 hours exposure in the r and i bands.
We note evidence of the source reported by P60 (Perley, et al., GCN 16884), with marginal evidence for fading throughout the epoch of RATIR observations. Further analysis is ongoing.
We thank the staff of the Observatorio Astron=C3=B3mico Nacional in San Pedro M=C3=A1rtir.
GCN Circular #16888
A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team.
Using 2816 s of XRT Photon Counting mode data and 3 UVOT images for GRB 141005A, 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 = 291.09317, +36.09496 which is equivalent to:
```
RA (J2000): 19h 24m 22.36s
Dec (J2000): +36d 05' 41.9"
```
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 #16889
O. Roberts (UCD) reports on behalf of the Fermi GBM Team:
"At 05:13:06.97 UT on the 5th of October 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 141005A (trigger 434178789 / 141005217) which was also detected by Swift (V. D'Elia et al. 2014, GCN 16682). The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight is 107 degrees.
The GBM light curve shows a single pulse with a duration (T90) of about 3 seconds (50-300 keV). The time-averaged spectrum from T0-0.26 s to T0+3.07 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.30 +/- 0.11 and the cutoff energy, parameterised as Epeak, is 138 +/- 8 keV.
A Band function fits the spectrum equally well with Epeak= 119 +/- 10 keV, alpha = -0.06 +/- 0.2 and beta = -2.7 +/- 0.3.
The event fluence (10-1000 keV) in this time interval is 2.6 E-06 erg/cm^2. The 1.024-sec peak photon flux measured starting from T0+1.5 seconds in the 10-1000 keV band is 3.7 +/- 0.2 ph/s/cm^2.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalogue."
GCN Circular #16893
H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), V. D'Elia (ASDC), N. Gehrels (GSFC), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 141005A (trigger #614415) (D'Elia, et al., GCN Circ. 16882). The BAT ground-calculated position is RA, Dec = 291.103, 36.098 deg, which is
```
   RA(J2000)  =  19h 24m 24.7s 
   Dec(J2000) = +36d 05' 54.1" 
```
with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 6%.
The mask-weighted light curve shows a single peak starting at ~T-1 sec, peaking at ~T+2 sec, and ending at ~T+7 sec. T90 (15-350 keV) is 4.34 +- 1.08 sec (estimated error including systematics).
The time-averaged spectrum from T+0.19 to T+5.66 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.33 +- 0.18. The fluence in the 15-150 keV band is 1.1 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+0.68 sec in the 15-150 keV band is 4.2 +- 0.8 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/614415/BA/
GCN Circular #16894
N. P. M. Kuin (UCL-MSSL) and V. D'Elia (ASDC) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 141005A 94 s after the BAT trigger (D'Elia et al., GCN Circ. 16882). This GRB was observed also by Fermi GBM (Roberts, GCN Circ. 16889), and in the r and i bands (P60: Perley et al., GCN Circ. 16884, RATIR: Littlejohn et al.,GCN Circ. 16885). A nearby galaxy was reported by Perley et al., and is also seen in the UVOT images. No optical afterglow consistent with the XRT position (Beardmore et al. GCN Circ. 16888), or the P60 position is detected in the initial UVOT exposures, although the event data for the UVOT b-band show a slight brightening peaking around T+700s.. 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

u_FC                94          344          246         >20.1
v                 5960         7392          393         >19.4
b                  349         6980          639         >20.2
u                   94         6775          786         >20.6
w1                5138         6570          393         >19.9
m2                4932         7445          441         >20.2
w2                5754         7186          393         >20.6
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.17 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #16895
M.C. Stroh (PSU), B.P. Gompertz (U. Leicester), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), M. de Pasquale (INAF-IASFPA), A. Maselli (INAF-IASFPA), A. Melandri (INAF-OAB), D.N. Burrows (PSU), J.A. Kennea (PSU) and V. D'Elia report on behalf of the Swift-XRT team:
We have analysed 10 ks of XRT data for GRB 141005A (D'Elia et al. GCN Circ. 16882), from 79 s to 29.1 ks after the BAT trigger. The data comprise 120 s in Windowed Timing (WT) mode (the first 7 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 Beardmore et al. (GCN Circ. 16888).
The light curve can be modelled with a power-law decay with a decay index of alpha=1.33 (+/-0.06).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.03 (+0.23, -0.21). The best-fitting absorption column is 3.3 (+1.0, -0.9) x 10^21 cm^-2, in excess of the Galactic value of 1.6 x 10^21 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.7 x 10^-11 (5.7 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     3.3 (+1.0, -0.9) x 10^21 cm^-2
Galactic foreground: 1.6 x 10^21 cm^-2
Excess significance: 3.2 sigma
Photon index:	     2.03 (+0.23, -0.21)
```
If the light curve continues to decay with a power-law decay index of 1.33, the count rate at T+24 hours will be 3.4 x 10^-4 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.3 x 10^-14 (1.9 x 10^-14) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00614415.
This circular is an official product of the Swift-XRT team.
GCN Circular #16897
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 141005A (Swift-BAT trigger 614415: D'Elia, GCN 16882; Krimm et al., GCN 16893; Fermi-GBM detection: Roberts, GCN 16889) triggered Konus-Wind at T0=18787.727 s UT (05:13:07.727).
The burst light curve shows a single pulse with a duration of ~3 s. The emission is seen up to ~1 MeV.
As observed by Konus-Wind, the burst had a fluence of 2.3(-0.2,+0.3)x10^-6 erg/cm2, and a 64-ms peak energy flux, measured from T0+0.390 s, of 1.6(-0.5,+0.5)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The time-integrated spectrum of the burst (measured from T0 to T0+8.448 s) is best fit in the 20 keV - 1 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -0.34(-0.49,+0.58), and Ep = 104(-14,+18) keV (chi2 = 33/55 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2.37 (chi2 = 31/54 dof).
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB141005_T18787/
All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.
GCN Circular #16898
S. Schmidl (TLS Tautenburg), J. F. Graham, and J. Greiner (both MPE Garching) report on behalf of the GROND team:
We observed the field of GRB 141005A (Swift trigger 614415; V. D'Elia et al., GCN #16882) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG telescope at ESO La Silla Observatory (Chile).
We detect a source consistant with the position reported by Perley et al. (GCN #16884). From coadded observations, starting on October 05 and spanning from 23:50 to 00:04 UT, we report the following preliminary magnitudes and upper limits (AB magnitude system) of:
```
g' > 21.6,
r' = 21.7 +/- 0.2,
i' = 21.7 +/- 0.2,
z' = 21.2 +/- 0.2,
J  > 20.5,
H  > 19.9, and
K  > 18.2.
```
Given magnitudes and upper limits are calibrated against SDSS as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.17 mag in the direction of the burst (Schlegel et al. 1998).
GCN Circular #16901
S. B. Cenko (NASA/GSFC) and D. A. Perley (Caltech) report:
We obtained a second epoch of imaging at the location of the optical afterglow (Perley et al., GCN 16884; Littlejohns et al., GCN 16885; Schmidl et al., GCN 16898) of GRB 141005A (D'Elia et al., GCN 16882) with the robotic Palomar 60 inch telescope. Observations were obtained in the r', i', and z' filters beginning at 2:31 UT on 2014 October 6 (0.89 d after the burst).
A source is clearly detected at the location of the afterglow candidate originally reported in GCN 16884 (Perley et al). As noted therein, a source is also present at this location in pre-outburst SDSS imaging of this field.
To search for variability at this location, we performed digital image subtraction with the P60 data, using the images from 2014 October 6 as a reference template. We find clear evidence for fading in the i-band (and marginal evidence in r and z-bands), confirming that this source is indeed the optical afterglow of GRB 141005A but is blended with a bright (i' ~ 21.7 mag) host galaxy or foreground object. Assuming no contribution of the afterglow to our template images, we measure i' = 20.24 +/- 0.10 at 5:18 UT on 2014 October 5 (i.e., 5 min after the Swift trigger).
GCN Circular #16903
D. Kawamura, T. Sakamoto, A. Yoshida (AGU)
We observed the field of GRB 141005A detected by Swift (trigger #614415; D'Elia et al., GCN Circ. 16882) with the iTelescope.Net (http://www.itelescope.net) T21 (0.43 m Planewave) telescope located at the New Mexico Skies Observatory (NM, USA).
60 images of 20 sec exposures and 20 images of 60 sec exposures were taken in the R filter starting from October 5 05:27:55 (UT) about 15 minutes after the trigger and stopped on October 5 06:33:49 (UT). We do not detect the optical afterglow both in the individual images and the stacked image at the enhanced X-ray afterglow position (Beardmore et al., GCN Circ. 16888). The estimated five sigma upper limit of the combined image (total exposure of 2400 sec) is ~18.4 using the USNO-B1 catalog.

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Jochen Greiner, last update: 07-Oct-2014 [Disclaimer]