Gamma-ray Burst 100514A

(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 14 May 10 18:54:44 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     421962,   Seg_Num: 0
GRB_RA:          328.821d {+21h 55m 17s} (J2000),
                 328.937d {+21h 55m 45s} (current),
                 328.261d {+21h 53m 03s} (1950)
GRB_DEC:         +29.170d {+29d 10' 13"} (J2000),
                 +29.220d {+29d 13' 11"} (current),
                 +28.933d {+28d 55' 59"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       12071 [cnts]    Image_Peak=284 [image_cnts]
TRIGGER_DUR:     3.072 [sec] 
TRIGGER_INDEX:   474     E_range: 25-100 keV
BKG_INTEN:       112803 [cnts]
BKG_TIME:        67994.20 SOD {18:53:14.20} UT
BKG_DUR:         32 [sec]
GRB_DATE:        15330 TJD;   134 DOY;   10/05/14
GRB_TIME:        68038.17 SOD {18:53:58.17} UT
GRB_PHI:         -35.20 [deg]
GRB_THETA:        27.81 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.64 [sigma]
IMAGE_SIGNIF:    7.06 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  -3  +0  +0 -26  +0 
SUN_POSTN:        51.49d {+03h 25m 57s}  +18.74d {+18d 44' 17"}
SUN_DIST:         74.69 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.50d {+04h 01m 59s}  +24.08d {+24d 04' 40"}
MOON_DIST:        79.78 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.80,-19.66 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      343.53, 38.83 [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 = 128.76,-8.19 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 18:56:08 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     421962,   Seg_Num: 0
GRB_RA:          328.8205d {+21h 55m 16.91s} (J2000),
                 328.9367d {+21h 55m 44.79s} (current),
                 328.2607d {+21h 53m 02.55s} (1950)
GRB_DEC:         +29.1603d {+29d 09' 37.0"} (J2000),
                 +29.2097d {+29d 12' 34.9"} (current),
                 +28.9228d {+28d 55' 22.1"} (1950)
GRB_ERROR:       4.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       4.16e-09 [erg/cm2/sec]
GRB_SIGNIF:      12.00 [sigma]
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68139.49 SOD {18:55:39.49} UT,   101.3 [sec] since BAT Trigger Time
TAM[0-3]:        327.67 237.25 261.47 243.64
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        51.49d {+03h 25m 57s}  +18.74d {+18d 44' 18"}
SUN_DIST:         74.70 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.51d {+04h 02m 03s}  +24.08d {+24d 04' 46"}
MOON_DIST:        79.79 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.66 [deg] galactic lon,lat of the burst
ECL_COORDS:      343.52, 38.82 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.61 arcmin from the BAT position.  
COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 18:56:18 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     421962,   Seg_Num: 0
GRB_RA:          328.8205d {+21h 55m 16.9s} (J2000),
                 328.9367d {+21h 55m 44.7s} (current),
                 328.2607d {+21h 53m 02.5s} (1950)
GRB_DEC:         +29.1603d {+29d 09' 37.0"} (J2000),
                 +29.2097d {+29d 12' 34.9"} (current),
                 +28.9228d {+28d 55' 22.1"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       144 [cnts]
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68139.49 SOD {18:55:39.49} UT,   101.3 [sec] since BAT Trigger Time
CENTROID_X:      290.86,  raw= 291  [pixels]
CENTROID_Y:      285.10,  raw= 285  [pixels]
ROLL:            76.70 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -30.39
GRB_POS_XRT_Z:   -26.95
IMAGE_URL:       sw00421962000msxps_rw.img
SUN_POSTN:        51.49d {+03h 25m 57s}  +18.74d {+18d 44' 18"}
SUN_DIST:         74.70 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.51d {+04h 02m 03s}  +24.08d {+24d 04' 47"}
MOON_DIST:        79.79 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.66 [deg] galactic lon,lat of the burst
ECL_COORDS:      343.52, 38.82 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 18:56:26 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     421962,   Seg_Num: 0
GRB_RA:          328.8205d {+21h 55m 16.9s} (J2000),
                 328.9367d {+21h 55m 44.7s} (current),
                 328.2607d {+21h 53m 02.5s} (1950)
GRB_DEC:         +29.1603d {+29d 09' 37.0"} (J2000),
                 +29.2097d {+29d 12' 34.9"} (current),
                 +28.9228d {+28d 55' 22.1"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       144 [cnts]
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68139.49 SOD {18:55:39.49} UT,   101.3 [sec] since BAT Trigger Time
CENTROID_X:      290.86,  raw= 291  [pixels]
CENTROID_Y:      285.10,  raw= 285  [pixels]
ROLL:            76.70 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -30.39
GRB_POS_XRT_Z:   -26.95
IMAGE_URL:       sw00421962000msxps_rw.img
SUN_POSTN:        51.49d {+03h 25m 57s}  +18.74d {+18d 44' 18"}
SUN_DIST:         74.70 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.51d {+04h 02m 03s}  +24.08d {+24d 04' 48"}
MOON_DIST:        79.79 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.66 [deg] galactic lon,lat of the burst
ECL_COORDS:      343.52, 38.82 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 18:57:42 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     421962,   Seg_Num: 0
GRB_RA:          328.821d {+21h 55m 17s} (J2000),
                 328.937d {+21h 55m 45s} (current),
                 328.261d {+21h 53m 03s} (1950)
GRB_DEC:         +29.170d {+29d 10' 13"} (J2000),
                 +29.220d {+29d 13' 11"} (current),
                 +28.933d {+28d 55' 59"} (1950)
GRB_DATE:        15330 TJD;   134 DOY;   10/05/14
GRB_TIME:        68038.17 SOD {18:53:58.17} UT
TRIGGER_INDEX:   474
GRB_PHI:         -35.20 [deg]
GRB_THETA:        27.81 [deg]
DELTA_TIME:      -75.00 [sec]
TRIGGER_DUR:     3.072 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.64 [sigma]
IMAGE_SIGNIF:    7.06 [sigma]
LC_URL:          sw00421962000msb.lc
SUN_POSTN:        51.49d {+03h 25m 58s}  +18.74d {+18d 44' 19"}
SUN_DIST:         74.70 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.53d {+04h 02m 06s}  +24.08d {+24d 04' 53"}
MOON_DIST:        79.80 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.80,-19.66 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      343.53, 38.83 [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 = 128.76,-8.19 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 18:59:22 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.810d {+21h 55m 15s} (J2000)
POINT_DEC:       +29.166d {+29d 09' 58"} (J2000)
POINT_ROLL:      76.703d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68148.65 SOD {18:55:48.65} UT,   110.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.437
N_STARS:         175
X_OFFSET:        552 [pixels]
Y_OFFSET:        520 [pixels]
X_MAX:           1511 [pixels]
Y_MAX:           1479 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00421962000msufc0110.fits
SUN_POSTN:        51.49d {+03h 25m 58s}  +18.74d {+18d 44' 20"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.54d {+04h 02m 10s}  +24.08d {+24d 05' 01"}
MOON_DIST:        79.82 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 18:59:26 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.810d {+21h 55m 15s} (J2000)
POINT_DEC:       +29.166d {+29d 09' 58"} (J2000)
POINT_ROLL:      76.703d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68148.65 SOD {18:55:48.65} UT,   110.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.437
N_STARS:         175
X_OFFSET:        552 [pixels]
Y_OFFSET:        520 [pixels]
X_MAX:           1511 [pixels]
Y_MAX:           1479 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00421962000msufc0110.fits
SUN_POSTN:        51.49d {+03h 25m 58s}  +18.74d {+18d 44' 20"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.54d {+04h 02m 11s}  +24.08d {+24d 05' 01"}
MOON_DIST:        79.82 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_field_srclist.ps.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:00:23 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.810d {+21h 55m 15s} (J2000)
POINT_DEC:       +29.166d {+29d 09' 58"} (J2000)
ROLL:            76.703d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68148.65 SOD {18:55:48.65} UT,   110.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     295556154
X_OFFSET:        887 [pixels]
Y_OFFSET:        910 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1047
Y_GRB_POS:       1070
BINNING_INDEX:   1
IM_URL:          sw00421962000msuni0116.fits
SUN_POSTN:        51.49d {+03h 25m 58s}  +18.74d {+18d 44' 20"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.55d {+04h 02m 13s}  +24.08d {+24d 05' 05"}
MOON_DIST:        79.83 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [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:     Fri 14 May 10 18:59:22 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.810d {+21h 55m 15s} (J2000)
POINT_DEC:       +29.166d {+29d 09' 58"} (J2000)
POINT_ROLL:      76.703d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68148.65 SOD {18:55:48.65} UT,   110.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.437
N_STARS:         175
X_OFFSET:        552 [pixels]
Y_OFFSET:        520 [pixels]
X_MAX:           1511 [pixels]
Y_MAX:           1479 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00421962000msufc0110.fits
SUN_POSTN:        51.49d {+03h 25m 58s}  +18.74d {+18d 44' 20"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.54d {+04h 02m 10s}  +24.08d {+24d 05' 01"}
MOON_DIST:        79.82 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:00:35 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.810d {+21h 55m 15s} (J2000)
POINT_DEC:       +29.166d {+29d 09' 58"} (J2000)
ROLL:            76.703d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68148.65 SOD {18:55:48.65} UT,   110.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     295556154
X_OFFSET:        887 [pixels]
Y_OFFSET:        910 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1047
Y_GRB_POS:       1070
BINNING_INDEX:   1
IM_URL:          sw00421962000msuni0116.fits
SUN_POSTN:        51.49d {+03h 25m 58s}  +18.74d {+18d 44' 20"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.56d {+04h 02m 13s}  +24.08d {+24d 05' 06"}
MOON_DIST:        79.83 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [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:        If you have elected to receive attachments:  
COMMENTS:        The uvot_field_image.ps.gz file does not exist; skipping the attachment.

GCN Circular #10759
C. B. Markwardt (CRESST/GSFC/UMD), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU), S. Campana (INAF-OAB), J. R. Cummings (NASA/UMBC), N. Gehrels (NASA/GSFC), J. M. Gelbord (PSU), C. Guidorzi (U Ferrara), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), W.B Landsman (GSFC), F. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), M. Perri (ASDC), T. Sakamoto (NASA/UMBC), M. H. Siegel (PSU), M. Stamatikos (OSU/NASA/GSFC), M. A. Stark (PSU), R. L. C. Starling (U Leicester), G. Stratta (ASDC), T. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the Swift Team:
At 18:53:58 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 100514A (trigger=421962). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 328.821, +29.170 which is
```
   RA(J2000)  =  21h 55m 17s
   Dec(J2000) = +29d 10' 13"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a few overlapping peaks with a duration of about 30 sec. The peak count rate was ~1000 counts/sec (15-350 keV), at ~5 sec after the trigger.
The XRT began observing the field at 18:55:39.5 UT, 101.3 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading uncatalogued X-ray source located at RA, Dec 328.82244, 29.15989 which is equivalent to:
```
   RA(J2000)  = 21h 55m 17.39s
   Dec(J2000) = +29d 09' 35.6"
```
with an uncertainty of 4.0 arcseconds (radius, 90% containment). This location is 36 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 7.74e+20 cm^-2 (Kalberla et al. 2005).
The initial flux in the 2.5 s image was 4.16e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 110 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.10.
Burst Advocate for this burst is C. B. Markwardt (Craig.Markwardt AT nasa.gov). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:06:45 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
POINT_ROLL:      76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68306.69 SOD {18:58:26.69} UT,   268.5 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.729
N_STARS:         116
X_OFFSET:        567 [pixels]
Y_OFFSET:        590 [pixels]
X_MAX:           1526 [pixels]
Y_MAX:           1549 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00421962000msufc0268.fits
SUN_POSTN:        51.50d {+03h 25m 59s}  +18.74d {+18d 44' 24"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.62d {+04h 02m 29s}  +24.09d {+24d 05' 33"}
MOON_DIST:        79.88 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:06:45 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
POINT_ROLL:      76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68306.69 SOD {18:58:26.69} UT,   268.5 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.729
N_STARS:         116
X_OFFSET:        567 [pixels]
Y_OFFSET:        590 [pixels]
X_MAX:           1526 [pixels]
Y_MAX:           1549 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00421962000msufc0268.fits
SUN_POSTN:        51.50d {+03h 25m 59s}  +18.74d {+18d 44' 24"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.62d {+04h 02m 29s}  +24.09d {+24d 05' 33"}
MOON_DIST:        79.88 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:07:01 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
POINT_ROLL:      76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68306.69 SOD {18:58:26.69} UT,   268.5 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.729
N_STARS:         116
X_OFFSET:        567 [pixels]
Y_OFFSET:        590 [pixels]
X_MAX:           1526 [pixels]
Y_MAX:           1549 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    3
SL_URL:          sw00421962000msufc0268.fits
SUN_POSTN:        51.50d {+03h 25m 59s}  +18.74d {+18d 44' 24"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.62d {+04h 02m 29s}  +24.09d {+24d 05' 34"}
MOON_DIST:        79.88 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_field_srclist.ps.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:07:59 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     421962,   Seg_Num: 0
GRB_RA:          328.8224d {+21h 55m 17.37s} (J2000),
                 328.9386d {+21h 55m 45.25s} (current),
                 328.2626d {+21h 53m 03.01s} (1950)
GRB_DEC:         +29.1600d {+29d 09' 36.0"} (J2000),
                 +29.2094d {+29d 12' 33.8"} (current),
                 +28.9225d {+28d 55' 21.0"} (1950)
GRB_ERROR:       2.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68241.00 SOD {18:57:21.00} UT,   202.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        51.50d {+03h 25m 59s}  +18.74d {+18d 44' 25"}
SUN_DIST:         74.70 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.63d {+04h 02m 32s}  +24.09d {+24d 05' 38"}
MOON_DIST:        79.88 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.67 [deg] galactic lon,lat of the burst
ECL_COORDS:      343.52, 38.82 [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 14 May 10 19:08:22 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
ROLL:            76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68306.69 SOD {18:58:26.69} UT,   268.5 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     295556312
X_OFFSET:        887 [pixels]
Y_OFFSET:        910 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1047
Y_GRB_POS:       1070
BINNING_INDEX:   1
IM_URL:          sw00421962000msuni0274.fits
SUN_POSTN:        51.50d {+03h 25m 59s}  +18.74d {+18d 44' 25"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.64d {+04h 02m 33s}  +24.09d {+24d 05' 40"}
MOON_DIST:        79.89 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [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:        If you have elected to receive attachments:  
COMMENTS:        The uvot_field_image.ps.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:08:09 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
ROLL:            76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68306.69 SOD {18:58:26.69} UT,   268.5 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     295556312
X_OFFSET:        887 [pixels]
Y_OFFSET:        910 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1047
Y_GRB_POS:       1070
BINNING_INDEX:   1
IM_URL:          sw00421962000msuni0274.fits
SUN_POSTN:        51.50d {+03h 25m 59s}  +18.74d {+18d 44' 25"}
SUN_DIST:         74.71 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.63d {+04h 02m 32s}  +24.09d {+24d 05' 39"}
MOON_DIST:        79.89 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [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:     Fri 14 May 10 19:15:08 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
POINT_ROLL:      76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68912.61 SOD {19:08:32.61} UT,   874.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.037
N_STARS:         190
X_OFFSET:        327 [pixels]
Y_OFFSET:        350 [pixels]
X_MAX:           1766 [pixels]
Y_MAX:           1789 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00421962000msufc0874.fits
SUN_POSTN:        51.50d {+03h 26m 01s}  +18.74d {+18d 44' 29"}
SUN_DIST:         74.72 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.71d {+04h 02m 49s}  +24.10d {+24d 06' 10"}
MOON_DIST:        79.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:15:08 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
POINT_ROLL:      76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68912.61 SOD {19:08:32.61} UT,   874.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.037
N_STARS:         190
X_OFFSET:        327 [pixels]
Y_OFFSET:        350 [pixels]
X_MAX:           1766 [pixels]
Y_MAX:           1789 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00421962000msufc0874.fits
SUN_POSTN:        51.50d {+03h 26m 01s}  +18.74d {+18d 44' 29"}
SUN_DIST:         74.72 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.71d {+04h 02m 49s}  +24.10d {+24d 06' 10"}
MOON_DIST:        79.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:15:21 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
POINT_ROLL:      76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68912.61 SOD {19:08:32.61} UT,   874.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.037
N_STARS:         190
X_OFFSET:        327 [pixels]
Y_OFFSET:        350 [pixels]
X_MAX:           1766 [pixels]
Y_MAX:           1789 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00421962000msufc0874.fits
SUN_POSTN:        51.50d {+03h 26m 01s}  +18.74d {+18d 44' 29"}
SUN_DIST:         74.72 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.71d {+04h 02m 50s}  +24.10d {+24d 06' 11"}
MOON_DIST:        79.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_field_srclist.ps.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 14 May 10 19:16:32 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
ROLL:            76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68912.61 SOD {19:08:32.61} UT,   874.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     295556918
X_OFFSET:        886 [pixels]
Y_OFFSET:        909 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1046
Y_GRB_POS:       1069
BINNING_INDEX:   1
IM_URL:          sw00421962000msuni0880.fits
SUN_POSTN:        51.50d {+03h 26m 01s}  +18.74d {+18d 44' 30"}
SUN_DIST:         74.72 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.72d {+04h 02m 53s}  +24.10d {+24d 06' 16"}
MOON_DIST:        79.96 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [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 14 May 10 19:16:45 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     421962,   Seg_Num: 0
POINT_RA:        328.808d {+21h 55m 14s} (J2000)
POINT_DEC:       +29.168d {+29d 10' 06"} (J2000)
ROLL:            76.701d
IMG_START_DATE:  15330 TJD;   134 DOY;   10/05/14
IMG_START_TIME:  68912.61 SOD {19:08:32.61} UT,   874.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     295556918
X_OFFSET:        886 [pixels]
Y_OFFSET:        909 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1046
Y_GRB_POS:       1069
BINNING_INDEX:   1
IM_URL:          sw00421962000msuni0880.fits
SUN_POSTN:        51.50d {+03h 26m 01s}  +18.74d {+18d 44' 30"}
SUN_DIST:         74.72 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:       60.72d {+04h 02m 53s}  +24.10d {+24d 06' 17"}
MOON_DIST:        79.96 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       82.79,-19.65 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      343.52, 38.83 [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:        If you have elected to receive attachments:  
COMMENTS:        The uvot_field_image.ps.gz file does not exist; skipping the attachment.

GCN Circular #10760
C.G. Mundell, R.J. Smith (Liverpool JMU), C. Guidorzi (U. Ferrara), A. Gomboc (U. Ljubljana) report on behalf of a large collaboration:
"On 2010 May 14 at 18:57:31.55 UT the 2-m Faulkes Telescope South began observing Swift GRB 100514A (Markwardt et al., GCN Circ. 10759) at 3.55 min after the GRB trigger time.
No optical afterglow is detected in R or i'-band filters to the following limits (relative to the USNO-B1) derived from co-added images:
```
   Mid time from    Filter   Limiting Magnitude
   trigger (min)
   ------------------------------------------------
   34.36		 R	   > 20.3
   38.55		 i'	   > 19.5
   ------------------------------------------------
```
We note that our limits seem to support a relatively high z for this burst, rather than a nearby extinguished afterglow, consistent with the lack of additional column density in the X-ray spectrum. Further followup observations are encouraged."
GCN Circular #10761
S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team):
Using the data set from T-240 to T+302 sec from recent telemetry downlinks, we report further analysis of BAT GRB 100514A (trigger #421962) (Markwardt, et al., GCN Circ. 10759). The BAT ground-calculated position is RA, Dec = 328.757, 29.175 deg, which is
```
    RA(J2000)  =  21h 55m 01.7s
    Dec(J2000) = +29d 10' 29.8"
```
with an uncertainty of 2.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 76%.
The mask-weighted light curve shows FRED-like peak starting at ~T-2 sec, peaking at ~T+7 sec, and ending at ~T+38 sec. T90 (15-350 keV) is 26.2 +- 8.2 sec (estimated error including systematics).
The time-averaged spectrum from T+0.3 to T+30.8 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.97 +- 0.25. The fluence in the 15-150 keV band is 4.0 +- 0.7 x 10-7 erg/cm2. The 1-sec peak photon flux measured from T+6.23 sec in the 15-150 keV band is 0.6 +- 0.2 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/421962/BA/
GCN Circular #10762
M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team.
Using 1720 s of XRT Photon Counting mode data and 2 UVOT images for GRB 100514A, 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 = 328.82257, +29.16001 which is equivalent to:
```
RA (J2000): 21h 55m 17.42s
Dec (J2000): +29d 09' 36.0"
```
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 #10763
V.Krushinski, I.Zalozhnih, T.Kopytova, A.Popov Ural State University, Kourovka
E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zimnukhov, M. Kornilov, A.Sankovich Sternberg Astronomical Institute, Moscow State University
K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres, O.Chuvalaev Irkutsk State University
V.Yurkov, Yu.Sergienko, D.Varda, A.Garusina Blagoveschensk Educational State University, Blagoveschensk
A. Tlatov, A.V. Parkhomenko, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located at Kourovka Observatory (Ural) was responted to the GRB 100514A (Swift Bat alert, Markwardt et al, GCN CIRC 10759) 25 sec after Notice time and 71 s after the GRB time.
There is no OT on the first 20-s exposition time unfiltered images inside Swift XRT error box (Goad et al., GCN CIRC 10762) brighter 17.0.
The message may be cited.
mailto: lipunov@sai.msu.ru
GCN Circular #10764
G. Stratta (ASDC), V. D'Elia (ASDC) and C. B. Markwardt (CRESST/GSFC/UMD) report on behalf of the Swift-XRT team:
We have analysed 24.9 ks of XRT data for GRB 100514A (Markwardt et al. GCN Circ. 10759), from 91 s to 25.0 ks after the BAT trigger. The data comprise 82 s in Windowed Timing (WT) mode (the first 9 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 Goad et al. (GCN. Circ 10762).
The light curve can be modelled with a broken power-law decay with decay indices of alpha_1 = 5.15 +/- 0.15, alpha_2 = 0.55 +/- 0.20 and a break at t = 560+/-60 sec after the trigger.
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 3.96 (+0.18, -0.17). The best-fitting absorption column is 2.9 (+/-0.3) x 10^21 cm^-2, in excess of the Galactic value of 7.7 x 10^20 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 2.1 x 10^-11 (2.0 x 10^-10) erg cm^-2 count^-1. The spectrum softens in the PC mode data to a photon spectral index of 2.74 (+0.46, -0.44) with a best-fitting column of 5.4 (+6.5, -2.9) x 10^20 cm^-2 in excess of the Galactic value. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is now 2.9 x 10^-11 (5.5 x 10^-11) erg cm^-2 count^-1.
Uncertainties are given at 90% confidence level.
If the light curve continues to decay with a power-law decay index of 0.55, the count rate at T+24 hours will be 1.8 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 5.2 x 10^-14 (9.9 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/00421962.
This circular is an official product of the Swift-XRT team.
GCN Circular #10765
J. Mao (YNAO & INAF-OAB) and J. Bai (YNAO) report on behalf of the GMG group:
Starting from 19h 49m 49s UT, after about 1 hour of the GRB trigger, we observed the field of GRB 100514A (Markwardt et al. GCN 10759) with one 2.4-m telescope located at Gao-Mei-Gu (GMG). We did not find any optical afterglows in a series of R-band images. The magnitude limit(relative to USNO-B1) is about 20.6.
This message might be cited.
GCN Circular #10766
F.E. Marshall (NASA/GSFC) and C.B. Markwardt (CRESST/GSFC/UMD) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 100514A 110 s after the BAT trigger (Markwardt et al., GCN Circ. 10759). There is a marginal (2.6-sigma) detection of a possible optical afterglow at the enhanced XRT position (M.R. Goad et al., GCN Circ. 10762) in the first white finding chart. There is no detection in any of the other initial UVOT exposures. Preliminary results (3-sigma upper limits or values with 1-sigma uncertainties) using the UVOT photometric system (Poole et al. 2008, MNRAS, 383, 627) for the finding chart (FC) exposures and summed subsequent exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC           110          260          147         21.1 +/- 0.3
u_FC               268          518          246         >20.2
white              549         7708          516         >21.0
v                  600         6843          529         >20.0
b                  524         7666          529         >20.5
u                  268         7459          775         >20.5
w1                 650         7254          529         >21.0
m2                 624         7048          529         >20.2
w2                 574         6639          352         >19.9
```
The values quoted above are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.10 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #10767
V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 100514A (Markwardt et al. GCN 10759) with Shajn telescope of CrAO between (UT) May 15 00:04:38 and 15T01:10:33 under good weather conditions and mean seeing of 2 arcsec. Inside the enhanced XRT error circle (Goad et al. GCN 10762) we detect the object with coordinates
```
RA(J2000):  21 55 17.46
Dec(J2000): +29 09 36.13
```
with uncertainties of 0.3" in each coordinates.
The photometry of the object based on USNO-B1.0 star 1191-0563318 (J2000) RA= 21:55:19.80 Dec= +29:10:10.0 (assuming R2=19.25) is following:
```
T0+      Filter,   Exposure, mag.
(mid, d)              (s)

0.2390   R       57x60     23.2 +/- 0.2
```
The afterglow candidate reported by Marshall and Markwardt (GCN 10766) is fading by ~2 mag. within 5.7 hours, and hence we confirm the afterglow.
GCN Circular #10819
V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We re-observed the field of the Swift GRB 100514A (Markwardt et al. GCN 10759) with Shajn telescope of CrAO in filter I between (UT) May, 16 23:21 and May, 17 00:54. We do not detect the afterglow of GRB 100514A (Marshall et al, GCN 10766; Rumyantsev et al, GCN 10767).
The upper limit based on USNO-B1.0 star 1191-0563318 (J2000) RA= 21:55:19.80 Dec= +29:10:10.0 (assuming I=18.09) is following:
```
T0+      Filter,   Exposure, mag.
(mid, d)              (s)

2.2182  I       64x60     >22.9
```
The combined images can be found http://grb.rssi.ru/GRB100514A/

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Jochen Greiner, last update: 14-May-2010 [Disclaimer]