Gamma-ray Burst 130609B

(All information courtesy of the instrument teams.)

Previous IAU Circulars

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:38:58 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.754d {+03h 35m 01s} (J2000),
                  53.875d {+03h 35m 30s} (current),
                  53.303d {+03h 33m 13s} (1950)
GRB_DEC:         -40.153d {-40d 09' 11"} (J2000),
                 -40.109d {-40d 06' 32"} (current),
                 -40.319d {-40d 19' 07"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4801 [cnts]    Image_Peak=237 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   155     E_range: 50-350 keV
BKG_INTEN:       19189 [cnts]
BKG_TIME:        77901.34 SOD {21:38:21.34} UT
BKG_DUR:         8 [sec]
GRB_DATE:        16452 TJD;   160 DOY;   13/06/09
GRB_TIME:        77920.41 SOD {21:38:40.41} UT
GRB_PHI:         -69.53 [deg]
GRB_THETA:        32.04 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     44.47 [sigma]
IMAGE_SIGNIF:    11.03 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  +0  +0  +0 -38  +0 
SUN_POSTN:        78.26d {+05h 13m 01s}  +23.00d {+22d 59' 52"}
SUN_DIST:         67.07 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.78d {+06h 11m 06s}  +19.66d {+19d 39' 40"}
MOON_DIST:        69.89 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.75,-53.92 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       34.37,-56.81 [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 = 160.95,19.35 [deg].

red DSS finding chart ps-file

GCN NOTICE

 
TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Sun 09 Jun 13 21:39:54 UT
NOTICE_TYPE:    INTEGRAL SPI ACS Trigger
TRIGGER_NUM:    6859,   Sub_Num: 0
GRB_INTEN:      9.00 [sigma]   
GRB_TIME:       77912.35 SOD {21:38:32.35} UT
GRB_DATE:       16452 TJD;   160 DOY;   13/06/09
COMMENTS:       INTEGRAL SPI_ACS GRB Trigger.
COMMENTS:       Time_Scale=2.0000 and Time_Error=1.0000.
COMMENTS:
COMMENTS:       NOTE: This SPIACS event is temporally(8.0<100sec) coincident with the SWIFT_BAT event (trignum=557828).
COMMENTS:
COMMENTS:       The SPIACS lightcurve can be found at:
COMMENTS:       ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2013-06/2013-06-09T21-38-32.1432-02204-19344-0.lc

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:40:31 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.7695d {+03h 35m 04.68s} (J2000),
                  53.8907d {+03h 35m 33.77s} (current),
                  53.3186d {+03h 33m 16.46s} (1950)
GRB_DEC:         -40.1747d {-40d 10' 28.9"} (J2000),
                 -40.1305d {-40d 07' 49.9"} (current),
                 -40.3401d {-40d 20' 24.4"} (1950)
GRB_ERROR:       4.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       3.42e-09 [erg/cm2/sec]
GRB_SIGNIF:      10.72 [sigma]
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  77996.42 SOD {21:39:56.42} UT,   76.0 [sec] since BAT Trigger Time
TAM[0-3]:        327.66 237.23 261.58 243.11
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 52"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.79d {+06h 11m 09s}  +19.66d {+19d 39' 36"}
MOON_DIST:        69.91 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.91 [deg] galactic lon,lat of the burst
ECL_COORDS:       34.37,-56.83 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.46 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:40:42 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.7695d {+03h 35m 04.6s} (J2000),
                  53.8907d {+03h 35m 33.7s} (current),
                  53.3186d {+03h 33m 16.4s} (1950)
GRB_DEC:         -40.1747d {-40d 10' 28.9"} (J2000),
                 -40.1305d {-40d 07' 49.9"} (current),
                 -40.3401d {-40d 20' 24.4"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       115 [cnts]
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  77996.42 SOD {21:39:56.42} UT,   76.0 [sec] since BAT Trigger Time
CENTROID_X:      307.03,  raw= 307  [pixels]
CENTROID_Y:      277.43,  raw= 277  [pixels]
ROLL:            24.49 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -48.48
GRB_POS_XRT_Z:   7.86
IMAGE_URL:       sw00557828000msxps_rw.img
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 52"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.79d {+06h 11m 10s}  +19.66d {+19d 39' 36"}
MOON_DIST:        69.91 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.91 [deg] galactic lon,lat of the burst
ECL_COORDS:       34.37,-56.83 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:40:48 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.7695d {+03h 35m 04.6s} (J2000),
                  53.8907d {+03h 35m 33.7s} (current),
                  53.3186d {+03h 33m 16.4s} (1950)
GRB_DEC:         -40.1747d {-40d 10' 28.9"} (J2000),
                 -40.1305d {-40d 07' 49.9"} (current),
                 -40.3401d {-40d 20' 24.4"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       115 [cnts]
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  77996.42 SOD {21:39:56.42} UT,   76.0 [sec] since BAT Trigger Time
CENTROID_X:      307.03,  raw= 307  [pixels]
CENTROID_Y:      277.43,  raw= 277  [pixels]
ROLL:            24.49 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -48.48
GRB_POS_XRT_Z:   7.86
IMAGE_URL:       sw00557828000msxps_rw.img
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 52"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.79d {+06h 11m 10s}  +19.66d {+19d 39' 36"}
MOON_DIST:        69.91 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.91 [deg] galactic lon,lat of the burst
ECL_COORDS:       34.37,-56.83 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:42:11 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.754d {+03h 35m 01s} (J2000),
                  53.875d {+03h 35m 30s} (current),
                  53.303d {+03h 33m 13s} (1950)
GRB_DEC:         -40.153d {-40d 09' 11"} (J2000),
                 -40.109d {-40d 06' 32"} (current),
                 -40.319d {-40d 19' 07"} (1950)
GRB_DATE:        16452 TJD;   160 DOY;   13/06/09
GRB_TIME:        77920.41 SOD {21:38:40.41} UT
TRIGGER_INDEX:   155
GRB_PHI:         -69.53 [deg]
GRB_THETA:        32.04 [deg]
DELTA_TIME:      12.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     44.47 [sigma]
IMAGE_SIGNIF:    11.03 [sigma]
LC_URL:          sw00557828000msb.lc
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 53"}
SUN_DIST:         67.07 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.80d {+06h 11m 13s}  +19.66d {+19d 39' 32"}
MOON_DIST:        69.91 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.75,-53.92 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       34.37,-56.81 [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 = 160.95,19.35 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:43:03 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.755d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.166d {-40d 09' 56"} (J2000)
POINT_ROLL:      24.482d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78005.26 SOD {21:40:05.26} UT,   84.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.916
N_STARS:         29
X_OFFSET:        544 [pixels]
Y_OFFSET:        472 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1431 [pixels]
DET_THRESH:      16
PHOTO_THRESH:    9
SL_URL:          sw00557828000msufc0084.fits
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 53"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.81d {+06h 11m 15s}  +19.66d {+19d 39' 30"}
MOON_DIST:        69.92 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.36,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:43:27 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.755d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.166d {-40d 09' 56"} (J2000)
POINT_ROLL:      24.482d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78005.26 SOD {21:40:05.26} UT,   84.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.916
N_STARS:         29
X_OFFSET:        544 [pixels]
Y_OFFSET:        472 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1431 [pixels]
DET_THRESH:      16
PHOTO_THRESH:    9
SL_URL:          sw00557828000msufc0084.fits
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 53"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.81d {+06h 11m 16s}  +19.66d {+19d 39' 29"}
MOON_DIST:        69.92 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.36,-56.82 [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 09 Jun 13 21:44:52 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.755d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.166d {-40d 09' 56"} (J2000)
ROLL:            24.482d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78005.26 SOD {21:40:05.26} UT,   84.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     392506815
X_OFFSET:        846 [pixels]
Y_OFFSET:        964 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1006
Y_GRB_POS:       1124
BINNING_INDEX:   1
IM_URL:          sw00557828000msuni0095.fits
SUN_POSTN:        78.26d {+05h 13m 02s}  +23.00d {+22d 59' 53"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.83d {+06h 11m 18s}  +19.66d {+19d 39' 26"}
MOON_DIST:        69.92 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.36,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:45:07 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.755d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.166d {-40d 09' 56"} (J2000)
ROLL:            24.482d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78005.26 SOD {21:40:05.26} UT,   84.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     392506815
X_OFFSET:        846 [pixels]
Y_OFFSET:        964 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1006
Y_GRB_POS:       1124
BINNING_INDEX:   1
IM_URL:          sw00557828000msuni0095.fits
SUN_POSTN:        78.26d {+05h 13m 03s}  +23.00d {+22d 59' 53"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.83d {+06h 11m 19s}  +19.66d {+19d 39' 25"}
MOON_DIST:        69.93 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.36,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:46:09 UT
NOTICE_TYPE:     Swift-UVOT Position
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.7713d {+03h 35m 05.11s} (J2000),
                  53.8925d {+03h 35m 34.20s} (current),
                  53.3204d {+03h 33m 16.89s} (1950)
GRB_DEC:         -40.1741d {-40d 10' 26.7"} (J2000),
                 -40.1299d {-40d 07' 47.8"} (current),
                 -40.3395d {-40d 20' 22.2"} (1950)
GRB_ERROR:       0.7 [arcsec radius, statistical only]
GRB_MAG:         15.55 +/- 0.14 [mag]
FILTER:          10, White
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78004.00 SOD {21:40:04.00} UT,   83.6 [sec] since BAT Trigger Time
SUN_POSTN:        78.26d {+05h 13m 03s}  +23.00d {+22d 59' 53"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.84d {+06h 11m 21s}  +19.66d {+19d 39' 23"}
MOON_DIST:        69.93 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.91 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       34.37,-56.83 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT UVOT Position Notice.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The UVOT position is 5.0 arcsec from the XRT position.  
COMMENTS:        Result based on Genie data.  
COMMENTS:        Notice generated automatically.

GCN Circular #14841
H. A. Krimm (CRESST/GSFC/USRA), S. D. Barthelmy (GSFC), D. N. Burrows (PSU), J. A. Kennea (PSU), D. Malesani (DARK/NBI), C. B. Markwardt (NASA/GSFC), F. E. Marshall (NASA/GSFC) and A. Maselli (INAF-IASFPA) report on behalf of the Swift Team:
At 21:38:40 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130609B (trigger=557828). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 53.754, -40.153 which is
```
   RA(J2000) = 03h 35m 01s
   Dec(J2000) = -40d 09' 11"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows multiple peaks with a total duration of at least 200 sec. The peak count rate was ~8500 counts/sec (15-350 keV), at ~2 sec after the trigger.
The XRT began observing the field at 21:39:56.4 UT, 76.0 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 53.7695, -40.1747 which is equivalent to:
```
   RA(J2000)  = +03h 35m 4.68s
   Dec(J2000) = -40d 10' 28.9"
```
with an uncertainty of 4.9 arcseconds (radius, 90% containment). This location is 89 arcseconds from the BAT onboard position, within the BAT error circle. No event data are yet available to determine the column density using X-ray spectroscopy.
UVOT took a finding chart exposure of nominal 150.000 seconds with the White filter starting 84 seconds after the BAT trigger. There is a candidate afterglow in the list of sources generated on-board at RA(J2000) = 03:35:05.11 = 53.77128 DEC(J2000) = -40:10:26.6 = -40.17406 with a 90%-confidence error radius of about 1.10 arc sec. This position is 5.4 arc sec. from the center of the XRT error circle. The estimated magnitude is 15.71. No correction has been made for the expected extinction corresponding to E(B-V) of 0.01.
Burst Advocate for this burst is H. A. Krimm (krimm AT milkyway.gsfc.nasa.gov). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:49:40 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 07"} (J2000)
POINT_ROLL:      24.487d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78217.45 SOD {21:43:37.45} UT,   297.0 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.240
N_STARS:         18
X_OFFSET:        526 [pixels]
Y_OFFSET:        644 [pixels]
X_MAX:           1485 [pixels]
Y_MAX:           1603 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00557828000msufc0297.fits
SUN_POSTN:        78.26d {+05h 13m 03s}  +23.00d {+22d 59' 54"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.87d {+06h 11m 29s}  +19.65d {+19d 39' 14"}
MOON_DIST:        69.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:50:05 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 07"} (J2000)
POINT_ROLL:      24.487d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78217.45 SOD {21:43:37.45} UT,   297.0 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.240
N_STARS:         18
X_OFFSET:        526 [pixels]
Y_OFFSET:        644 [pixels]
X_MAX:           1485 [pixels]
Y_MAX:           1603 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00557828000msufc0297.fits
SUN_POSTN:        78.26d {+05h 13m 03s}  +23.00d {+22d 59' 54"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.87d {+06h 11m 29s}  +19.65d {+19d 39' 13"}
MOON_DIST:        69.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [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 09 Jun 13 21:51:08 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 07"} (J2000)
ROLL:            24.487d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78217.45 SOD {21:43:37.45} UT,   297.0 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     392507028
X_OFFSET:        846 [pixels]
Y_OFFSET:        964 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1006
Y_GRB_POS:       1124
BINNING_INDEX:   1
IM_URL:          sw00557828000msuni0308.fits
SUN_POSTN:        78.26d {+05h 13m 04s}  +23.00d {+22d 59' 54"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.88d {+06h 11m 32s}  +19.65d {+19d 39' 10"}
MOON_DIST:        69.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:51:22 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 07"} (J2000)
ROLL:            24.487d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78217.45 SOD {21:43:37.45} UT,   297.0 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     392507028
X_OFFSET:        846 [pixels]
Y_OFFSET:        964 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1006
Y_GRB_POS:       1124
BINNING_INDEX:   1
IM_URL:          sw00557828000msuni0308.fits
SUN_POSTN:        78.27d {+05h 13m 04s}  +23.00d {+22d 59' 55"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.88d {+06h 11m 32s}  +19.65d {+19d 39' 10"}
MOON_DIST:        69.95 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.77,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:56:13 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 08"} (J2000)
POINT_ROLL:      24.488d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78796.22 SOD {21:53:16.22} UT,   875.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.270
N_STARS:         56
X_OFFSET:        286 [pixels]
Y_OFFSET:        404 [pixels]
X_MAX:           1725 [pixels]
Y_MAX:           1843 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00557828000msufc0875.fits
SUN_POSTN:        78.27d {+05h 13m 04s}  +23.00d {+22d 59' 55"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.93d {+06h 11m 42s}  +19.65d {+19d 38' 58"}
MOON_DIST:        69.97 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 09 Jun 13 21:56:30 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 08"} (J2000)
POINT_ROLL:      24.488d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78796.22 SOD {21:53:16.22} UT,   875.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.270
N_STARS:         56
X_OFFSET:        286 [pixels]
Y_OFFSET:        404 [pixels]
X_MAX:           1725 [pixels]
Y_MAX:           1843 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00557828000msufc0875.fits
SUN_POSTN:        78.27d {+05h 13m 04s}  +23.00d {+22d 59' 55"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.93d {+06h 11m 43s}  +19.65d {+19d 38' 57"}
MOON_DIST:        69.97 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [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 09 Jun 13 21:57:55 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 08"} (J2000)
ROLL:            24.488d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78796.22 SOD {21:53:16.22} UT,   875.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     392507606
X_OFFSET:        845 [pixels]
Y_OFFSET:        963 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1005
Y_GRB_POS:       1123
BINNING_INDEX:   1
IM_URL:          sw00557828000msuni0886.fits
SUN_POSTN:        78.27d {+05h 13m 05s}  +23.00d {+22d 59' 56"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.94d {+06h 11m 46s}  +19.65d {+19d 38' 54"}
MOON_DIST:        69.98 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [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 09 Jun 13 21:58:08 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     557828,   Seg_Num: 0
POINT_RA:         53.753d {+03h 35m 01s} (J2000)
POINT_DEC:       -40.169d {-40d 10' 08"} (J2000)
ROLL:            24.488d
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  78796.22 SOD {21:53:16.22} UT,   875.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     392507606
X_OFFSET:        845 [pixels]
Y_OFFSET:        963 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1005
Y_GRB_POS:       1123
BINNING_INDEX:   1
IM_URL:          sw00557828000msuni0886.fits
SUN_POSTN:        78.27d {+05h 13m 05s}  +23.00d {+22d 59' 56"}
SUN_DIST:         67.09 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       92.94d {+06h 11m 46s}  +19.65d {+19d 38' 53"}
MOON_DIST:        69.98 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.92 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       34.35,-56.82 [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 09 Jun 13 22:21:20 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.7698d {+03h 35m 04.75s} (J2000),
                  53.8910d {+03h 35m 33.84s} (current),
                  53.3189d {+03h 33m 16.53s} (1950)
GRB_DEC:         -40.1760d {-40d 10' 33.6"} (J2000),
                 -40.1318d {-40d 07' 54.6"} (current),
                 -40.3414d {-40d 20' 29.1"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  79381.00 SOD {22:03:01.00} UT,   1460.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        78.29d {+05h 13m 09s}  +23.00d {+23d 00' 00"}
SUN_DIST:         67.10 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       93.14d {+06h 12m 35s}  +19.63d {+19d 37' 56"}
MOON_DIST:        70.06 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.91 [deg] galactic lon,lat of the burst
ECL_COORDS:       34.37,-56.83 [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:        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 09 Jun 13 22:37:15 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     557828,   Seg_Num: 0
GRB_RA:           53.7696d {+03h 35m 04.70s} (J2000),
                  53.8908d {+03h 35m 33.79s} (current),
                  53.3187d {+03h 33m 16.48s} (1950)
GRB_DEC:         -40.1760d {-40d 10' 33.6"} (J2000),
                 -40.1318d {-40d 07' 54.6"} (current),
                 -40.3414d {-40d 20' 29.1"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16452 TJD;   160 DOY;   13/06/09
IMG_START_TIME:  79381.00 SOD {22:03:01.00} UT,   1460.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        78.30d {+05h 13m 12s}  +23.00d {+23d 00' 03"}
SUN_DIST:         67.11 [deg]   Sun_angle= 1.6 [hr] (West of Sun)
MOON_POSTN:       93.28d {+06h 13m 08s}  +19.62d {+19d 37' 16"}
MOON_DIST:        70.12 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      244.78,-53.91 [deg] galactic lon,lat of the burst
ECL_COORDS:       34.37,-56.83 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.

GCN Circular #14847
M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team.
Using 2407 s of XRT Photon Counting mode data and 5 UVOT images for GRB 130609B, 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 = 53.77097, -40.17407 which is equivalent to:
```
RA (J2000): 03h 35m 5.03s
Dec (J2000): -40d 10' 26.7"
```
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 #14852
C. Pagani (U. Leicester), A. Melandri (INAF-OAB), B. Sbarufatti (INAF-OAB/PSU), G. Stratta (ASDC), D.N. Burrows (PSU), J.A. Kennea (PSU), M.C. Stroh (PSU), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester) and H.A. Krimm report on behalf of the Swift-XRT team:
We have analysed 7.0 ks of XRT data for GRB 130609B (Krimm et al. GCN Circ. 14841), from 66 s to 46.7 ks after the BAT trigger. The data comprise 1.4 ks 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 14847).
The late-time light curve (from T0+5.4 ks) can be modelled with an initial power-law decay with an index of alpha=1.42 (+0.14, -0.56), followed by a break at T+13.6 ks to an alpha of 2.36 (+0.38, -0.22).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.840 (+/-0.029). The best-fitting absorption column is 1.40 (+0.08, -0.07) x 10^21 cm^-2, in excess of the Galactic value of 1.4 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 2.01 (+/-0.10) and a best-fitting absorption column of 1.28 (+0.26, -0.24) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.7 x 10^-11 (5.0 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     1.28 (+0.26, -0.24) x 10^21 cm^-2
Galactic foreground: 1.4 x 10^20 cm^-2
Excess significance: 7.6 sigma
Photon index:	     2.01 (+/-0.10)
```
If the light curve continues to decay with a power-law decay index of 2.36, the count rate at T+24 hours will be 8.4 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.1 x 10^-13 (4.1 x 10^-13) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00557828.
This circular is an official product of the Swift-XRT team.
GCN Circular #14856
S. Golenetskii, R.Aptekar, D. Frederiks, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline, on behalf of the Konus-Wind team, report:
The long-duration intense GRB 130609B (Swift-BAT trigger 557828: Krimm, et al., GCN 14841) triggered Konus-Wind at T0=3D77916.818 s UT (21:38:36.818)
The light curve consists of two major emission episodes: the first one with a bright multi-peaked structure from ~T0-30 s to ~T0+5= 5 s, and the second, much weaker and softer episode, from ~T0+170 s to ~T0+210= s. The emission is seen up to 7 MeV.
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB130609_T77916/
As observed by Konus-Wind, the burst had a fluence of (9.4 =B1 0.7)x10-5 erg/cm2, and a 64-ms peak flux, measured from T0+3.712 s, of (9.5 =B1 0.6)x10-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The time-averaged spectrum of the first emission episode (measured from T0 to T0+54.528 s) is best fit in the 20 keV - 18 MeV range by the GRB (Band) function with the following model parameters: the low-energy photon index alpha =3D -0.84 =B1 0.05, the high energy photon index beta =3D -2.39 =B1 0.15, the peak energy Ep =3D 397 =B1 26 keV, chi2 =3D 97/97 dof.
The time-averaged spectrum of the second emission episode (measured from T0+169.216 to T0+210.176 s) is best fit in the 20 keV - 18 MeV range by the cutoff power law with the following model parameters: the photon index alpha =3D -1.64 =B1 0.21, the peak energy Ep =3D 198 =B1 105 keV, chi2 =3D 93.7/98 dof.
The spectrum at the maximum count rate (measured from T0 to T0+6.656 s) is best fit in the 20 keV - 18 MeV range by the GRB (Band) function with the following model parameters: the low-energy photon index alpha =3D -0.70 =B1 0.07, the high energy photon index beta =3D -3.0 =B1 0.3, the peak energy Ep =3D 740 =B1 90 keV, chi2 =3D 105/97 dof.
All the quoted results are preliminary.

GCN Circular #14857
M. H. Siegel (PSU) and H. A. Krimm (CRESST/GSFC/USRA) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130609B 85 s after the BAT trigger (Krimm et al., GCN Circ. 14841). A fading source consistent with the XRT position (Goad et al. GCN Circ. 14847) is detected in the initial UVOT exposures.
The preliminary UVOT position is:

   RA  (J2000) =  03:35:05.11 =  53.77128 (deg.)
   Dec (J2000) = -40:10:26.7  = -40.17409 (deg.)

with an estimated uncertainty of 0.50 arc sec. (radius, 90% confidence).
Preliminary detections and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first and second orbit exposures are:

Filter        T_start(s)   T_stop(s)    Exp(s)      Mag
white (fc)           84          234      147    15.47+-0.02
white               577         1891      283    17.36+-0.03
white              6046         7681      393    18.39+-0.05
v                   799         1941      136    16.89+-0.09
v                  6457         6657      196    18.00+-0.15
b                   552         1866      136    17.32+-0.06
b                  5841         7476      393    18.46+-0.09
u (fc)              297          546      245    16.31+-0.04
u                   700         1841      116    17.15+-0.08
u                  5636         7271      393    18.15+-0.09
uvw1                676         1816      136    17.61+-0.12
uvw1               5432         7067      393    18.75+-0.15
uvm2                823         1791      116    19.12+-0.35
uvm2               6662         6861      196    >19.66
uvw2                603         1916      116    >19.51
uvw2               6252         7855      362    >20.39

The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.01 in the direction of the burst (Schlegel et al. 1998).

GCN Circular #14862
A. Y. Lien (NASA/GSFC/ORAU), 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), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team):
Using the data set from T-60 to T+243 sec from the recent telemetry downlink, we report further analysis of BAT GRB 130609B (trigger #557828) (Krimm, et al., GCN Circ. 13841). The BAT ground-calculated position is RA, Dec = 53.776, -40.168 deg which is
```
     RA(J2000)  =  03h 35m 06.2s
     Dec(J2000) = -40d 10' 04.0"
```
with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 43%.
The mask-weighted light curve shows an initial complex of two main overlapping peaks with numerous subsidiary peaks, with strong emission between T-10 and T+50 sec and low-level emission between T-30 and T+120 sec. The highest points are at T+4 and T+18 sec. Then there is a second, weaker and softer pair of overlapping peaks between T+160 sec and T+220 sec. This second set of peaks is consistent with a flare seen in the Swift-XRT. T90 (15-350 keV) is 191.98 +- 2.44 sec (estimated error including systematics) We note that receipt of the full event data for GRB 130609B may reveal further late-time peaks and require a revision of the T90 estimate. We will report on the full data set in a later Circular.
The time-averaged spectrum from T-7.84 to T+213.25 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.23 +- 0.04. The fluence in the 15-150 keV band is 1.6 +- 0.0 x 10^-05 erg/cm2. The 1-sec peak photon flux measured from T+16.78 sec in the 15-150 keV band is 8.5 +- 0.4 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/557828/BA/
GCN Circular #14866
S. Schmidl, A. Rossi (both TLS Tautenburg), and J. Greiner (MPE Garching) report on behalf of the GROND team:
We observed the field of GRB 130609B (Swift trigger 557828; Krimm et al., GCN #14841) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG/ESO telescope at La Silla Observatory (Chile).
Observations started at 09:30 UT on 11th June 2013, 35.9 hours after the GRB trigger. They were performed at an average seeing of 1.6" and at an average airmass of 2.2.
We detect a source at the position of the UVOT afterglow (Siegel et al.; GCN #14857), and based on images taken at a mid-time of 09:45 UT, with total exposures of 25 minutes in g'r'i'z' and 20 minutes in JHK, we estimate preliminary magnitudes (all in AB) of
```
g' = 22.2 +/- 0.1 mag,
r' = 21.7 +/- 0.1 mag,
i' = 21.1 +/- 0.2 mag,
z' = 20.9 +/- 0.2 mag,
J  = 20.6 +/- 0.3 mag,
H  = 19.8 +/- 0.4 mag, and
K  = 19.4 +/- 0.4 mag.
```
The source is brighter than what one could expect extrapolating the early UVOT data (Siegel et al.; GCN #14857) and could be either a plateau/flare, or due to the contribution of the host galaxy.
Given magnitudes are calibrated against GROND zeropoints as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.01 mag in the direction of the burst (Schlegel et al. 1998).
GCN Circular #14867
H. A. Krimm (GSFC/USRA) and J. R. Cummings (GSFC/UMBC) for the Swift-BAT team:
Using the full data set from T-239 to T+963 sec from the recent telemetry downlink, we report final analysis of BAT GRB 130609B (trigger #557828) (Krimm, et al., GCN Circ. 14841; Lien at al., GCN Circ. 14862).
In addition to the peaks described in Lien at al., GCN Circ. 14862, we report that there is a small peak in the BAT at around T+270 sec, coincident with a second flare in the XRT. T90 (15-350 keV) is 210.6 +- 15.1 sec (estimated error including systematics).
The time-averaged spectrum from T-7.8 to T+307.6 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.32 +- 0.04. The fluence and peak photon flux are as reported in GCN Circ. 14862. The quoted error is at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/557828/BA/
GCN Circular #14869
V. Pelassa (UAH) reports on behalf of the Fermi GBM Team:
"At 21:38:35.61 UT on 09 June 2013, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 130609B (trigger 392506718 / 130609902), which was also detected by the Swift/BAT (H.A. Krimm et al. 2013, GCN 14841). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 117 degrees.
The GBM light curve consists of two bright peaks within 30s of trigger and a fainter bump at 170s after trigger with a duration (T90) of about 191 s (50-300 keV).
The time-averaged spectrum from T0+0.003s to T0+28.672s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -0.70 +/- 0.02 and the cutoff energy, parameterized as Epeak, is 536 +/- 18 keV (Castor statistics 474 for 365 d.o.f.).
The event fluence (10-1000 keV) in this time interval is (6.02 +/- 0.07)E-05 erg/cm^2. The 1.024-sec peak photon flux measured starting from T0+6.592 s in the 10-1000 keV band is 13.6 +/-0.4 ph/s/cm^2.
A Band function fits the spectrum equally well (Castor statistics 468 for 364 d.o.f.) with Epeak= 491 +/- 20 keV, alpha = -0.66 +/- 0.02 and beta = -2.6 +/- 0.2.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN Circular #14888
R. Ruffini, C.L. Bianco, M. Enderli, M. Muccino, A.V. Penacchioni, G.B. Pisani, J.A. Rueda, N. Sahakyan, Y. Wang, L. Izzo report:
The late X-ray observations of GRB 130609B evidences a pattern typical of a family of GRBs associated to Supernovae following the Induced Gravitational Collapse (IGC) paradigm. We estimate a cosmological redshift for the GRB of approximately z=1.3. We encourage observations.
GCN Circular #14915
K. Takaki, M. Ohno, T. Kawano, R. Nakamura, S. Furui, Y. Fukazawa (Hiroshima U.), M. Tashiro, Y. Terada, T. Yasuda, Y. Ishida, H. Ueno, S. Sugimoto (Saitama U.), K. Yamaoka (Nagoya U.), M. Yamauchi, M. Akiyama, N. Ohmori (Univ. of Miyazaki), S. Sugita (Ehime U.), Y. E. Nakagawa, M. Kokubun, T. Takahashi (ISAS/JAXA), W. Iwakiri(RIKEN), Y. Hanabata (ICRR), Y. Urata (NCU), K. Nakazawa, K. Makishima (Univ. of Tokyo) on behalf of the Suzaku WAM team, report:
The long GRB 130609B (Krimm et al., GCN14841) triggered by the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 21:38:35 UT (=T0).
The observed light curve shows a multi-peaked structure starting at T0, ending at T0+30 s with a duration (T90) of about 19.6 seconds. The fluence in 100 - 1000 keV was 3.77 (+0.24/-0.70) x10^-5 erg/cm^2. The 1-s peak flux measured was 7.03 (+0.39/-2.80) photons/cm^2/s in the same energy range.
Preliminary result shows that the time-averaged spectrum from T0 to T0+30 s is well fitted by a power-law with exponential cutoff model:
```
 dN/dE ~  E^{-alpha} * exp(-(2-alpha)*E/Epeak) with
 alpha      1.48 (+0.40/-0.41), and
 Epeak      845 (+179/-147) keV (chi^2/d.o.f. = 15.2/24).
```
Due to the brightness of this burst, a 5% systematic error was added for low energy channels.
All the quoted errors are at statistical 90% confidence level.
The light curves for this burst will be available at: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html
GCN Report 435.1
GCN_Report 435.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_435_1.pdf by H.A. Krimm at CRESST/GSFC/USRA titled: "Swift Observations of GRB 130609B"

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Jochen Greiner, last update: 23-Jun-2013 [Disclaimer]