Gamma-ray Burst 180614A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:16:30 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     841548,   Seg_Num: 0
GRB_RA:            3.157d {+00h 12m 38s} (J2000),
                   3.400d {+00h 13m 36s} (current),
                   2.502d {+00h 10m 00s} (1950)
GRB_DEC:         +46.943d {+46d 56' 34"} (J2000),
                 +47.045d {+47d 02' 43"} (current),
                 +46.665d {+46d 39' 53"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4257 [cnts]    Image_Peak=166 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   137     E_range: 15-50 keV
BKG_INTEN:       27412 [cnts]
BKG_TIME:        69354.89 SOD {19:15:54.89} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18283 TJD;   165 DOY;   18/06/14
GRB_TIME:        69373.64 SOD {19:16:13.64} UT
GRB_PHI:         -26.97 [deg]
GRB_THETA:        15.92 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     11.78 [sigma]
IMAGE_SIGNIF:    6.68 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +1  -4  +0  +0 -39  +0 
SUN_POSTN:        83.12d {+05h 32m 30s}  +23.29d {+23d 17' 08"}
SUN_DIST:         66.36 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       97.97d {+06h 31m 53s}  +20.67d {+20d 40' 29"}
MOON_DIST:        78.02 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.08,-15.41 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       25.50, 40.95 [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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 112.09,-2.12 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:17:27 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.143d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.943d {+46d 56' 34"} (J2000)
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69439.17 SOD {19:17:19.17} UT,   65.5 [sec] since BAT Trigger Time
COUNTS:          5    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        1    Max_iter_allowed= 4
ERROR_CODE:      1
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        No source found in the image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:19:51 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     841548,   Seg_Num: 0
GRB_RA:            3.157d {+00h 12m 38s} (J2000),
                   3.400d {+00h 13m 36s} (current),
                   2.502d {+00h 10m 00s} (1950)
GRB_DEC:         +46.943d {+46d 56' 34"} (J2000),
                 +47.045d {+47d 02' 43"} (current),
                 +46.665d {+46d 39' 53"} (1950)
GRB_DATE:        18283 TJD;   165 DOY;   18/06/14
GRB_TIME:        69373.64 SOD {19:16:13.64} UT
TRIGGER_INDEX:   137
GRB_PHI:         -26.97 [deg]
GRB_THETA:        15.92 [deg]
DELTA_TIME:      45.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     11.78 [sigma]
IMAGE_SIGNIF:    6.68 [sigma]
LC_URL:          sw00841548000msb.lc
SUN_POSTN:        83.13d {+05h 32m 30s}  +23.29d {+23d 17' 09"}
SUN_DIST:         66.36 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.01d {+06h 32m 02s}  +20.68d {+20d 40' 32"}
MOON_DIST:        78.04 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.08,-15.41 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       25.50, 40.95 [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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 112.09,-2.12 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:20:57 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.143d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.942d {+46d 56' 33"} (J2000)
ROLL:            80.421d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69442.38 SOD {19:17:22.38} UT,   68.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     550696663
X_OFFSET:        879 [pixels]
Y_OFFSET:        863 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1039
Y_GRB_POS:       1023
BINNING_INDEX:   1
IM_URL:          sw00841548000msuni0090.fits
SUN_POSTN:        83.13d {+05h 32m 30s}  +23.29d {+23d 17' 09"}
SUN_DIST:         66.37 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.02d {+06h 32m 05s}  +20.68d {+20d 40' 33"}
MOON_DIST:        78.06 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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).  
COMMENTS:        There is a bright star (mag=4.95) 7.62 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:21:15 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.143d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.942d {+46d 56' 33"} (J2000)
ROLL:            80.421d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69442.38 SOD {19:17:22.38} UT,   68.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     550696663
X_OFFSET:        879 [pixels]
Y_OFFSET:        863 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1039
Y_GRB_POS:       1023
BINNING_INDEX:   1
IM_URL:          sw00841548000msuni0090.fits
SUN_POSTN:        83.13d {+05h 32m 30s}  +23.29d {+23d 17' 09"}
SUN_DIST:         66.37 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.03d {+06h 32m 06s}  +20.68d {+20d 40' 33"}
MOON_DIST:        78.06 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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_catalog_image.fits.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:21:03 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     841548,   Seg_Num: 0
GRB_RA:            3.0767d {+00h 12m 18.40s} (J2000),
                   3.3193d {+00h 13m 16.62s} (current),
                   2.4220d {+00h 09m 41.26s} (1950)
GRB_DEC:         +46.9541d {+46d 57' 14.7"} (J2000),
                 +47.0567d {+47d 03' 23.9"} (current),
                 +46.6760d {+46d 40' 33.6"} (1950)
GRB_ERROR:       4.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69467.00 SOD {19:17:47.00} UT,   93.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        83.13d {+05h 32m 30s}  +23.29d {+23d 17' 09"}
SUN_DIST:         66.41 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.02d {+06h 32m 06s}  +20.68d {+20d 40' 33"}
MOON_DIST:        78.10 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.02,-15.39 [deg] galactic lon,lat of the burst
ECL_COORDS:       25.45, 40.99 [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:     Thu 14 Jun 18 19:27:46 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
POINT_ROLL:      80.421d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69655.38 SOD {19:20:55.38} UT,   281.7 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.662
N_STARS:         190
X_OFFSET:        320 [pixels]
Y_OFFSET:        304 [pixels]
X_MAX:           1759 [pixels]
Y_MAX:           1743 [pixels]
DET_THRESH:      7
PHOTO_THRESH:    3
SL_URL:          sw00841548000msufc0281.fits
SUN_POSTN:        83.13d {+05h 32m 32s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.10d {+06h 32m 24s}  +20.68d {+20d 40' 38"}
MOON_DIST:        78.11 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:28:09 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
POINT_ROLL:      80.421d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69655.38 SOD {19:20:55.38} UT,   281.7 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.662
N_STARS:         190
X_OFFSET:        320 [pixels]
Y_OFFSET:        304 [pixels]
X_MAX:           1759 [pixels]
Y_MAX:           1743 [pixels]
DET_THRESH:      7
PHOTO_THRESH:    3
SL_URL:          sw00841548000msufc0281.fits
SUN_POSTN:        83.13d {+05h 32m 32s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.10d {+06h 32m 25s}  +20.68d {+20d 40' 38"}
MOON_DIST:        78.11 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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:     Thu 14 Jun 18 19:29:10 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
ROLL:            80.421d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69655.38 SOD {19:20:55.38} UT,   281.7 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     550696876
X_OFFSET:        879 [pixels]
Y_OFFSET:        863 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1039
Y_GRB_POS:       1023
BINNING_INDEX:   1
IM_URL:          sw00841548000msuni0303.fits
SUN_POSTN:        83.13d {+05h 32m 32s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.11d {+06h 32m 27s}  +20.68d {+20d 40' 39"}
MOON_DIST:        78.12 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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:     Thu 14 Jun 18 19:28:16 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     841548,   Seg_Num: 0
GRB_RA:            3.0779d {+00h 12m 18.69s} (J2000),
                   3.3205d {+00h 13m 16.91s} (current),
                   2.4232d {+00h 09m 41.55s} (1950)
GRB_DEC:         +46.9530d {+46d 57' 10.8"} (J2000),
                 +47.0556d {+47d 03' 20.0"} (current),
                 +46.6749d {+46d 40' 29.6"} (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:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69467.00 SOD {19:17:47.00} UT,   93.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        83.13d {+05h 32m 32s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.42 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.10d {+06h 32m 25s}  +20.68d {+20d 40' 38"}
MOON_DIST:        78.15 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.02,-15.39 [deg] galactic lon,lat of the burst
ECL_COORDS:       25.45, 40.99 [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:     Thu 14 Jun 18 19:29:23 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
ROLL:            80.421d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  69655.38 SOD {19:20:55.38} UT,   281.7 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     550696876
X_OFFSET:        879 [pixels]
Y_OFFSET:        863 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1039
Y_GRB_POS:       1023
BINNING_INDEX:   1
IM_URL:          sw00841548000msuni0303.fits
SUN_POSTN:        83.13d {+05h 32m 32s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.12d {+06h 32m 28s}  +20.68d {+20d 40' 39"}
MOON_DIST:        78.12 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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 #22780
J.D. Gropp (PSU), S. D. Barthelmy (GSFC), D. N. Burrows (PSU), J. A. Kennea (PSU), A. Y. Lien (GSFC/UMBC), F. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), M. H. Siegel (PSU), A. Tohuvavohu (PSU) and T. N. Ukwatta (LANL) report on behalf of the Neil Gehrels Swift Observatory Team:
At 19:16:13 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 180614A (trigger=841548). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 3.157, +46.943, which is
```
   RA(J2000)  =  00h 12m 38s
   Dec(J2000) = +46d 56' 34"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a couple peaks with a duration of about 25 sec. The peak count rate was ~1500 counts/sec (15-350 keV), at ~2 sec after the trigger.
The XRT began observing the field at 19:17:19.1 UT, 65.6 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source located at RA, Dec 3.07620, 46.95342 which is equivalent to:
```
   RA(J2000)  = 00h 12m 18.29s
   Dec(J2000) = +46d 57' 12.3"
```
with an uncertainty of 4.0 arcseconds (radius, 90% containment). This location is 202 arcseconds from the BAT onboard position. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper. We cannot determine whether the source is fading at the present time. This position is more than 2-sigma away from the BAT position, and so possibly unrelated to the trigger.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 1.14 x 10^21 cm^-2 (Willingale et al. 2013).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 68 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' image covers none of the XRT error circle. Data from the list of sources generated on-board are not available at this time.
Burst Advocate for this burst is J.D. Gropp (jdg44 AT psu.edu). 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:     Thu 14 Jun 18 19:33:26 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
POINT_ROLL:      80.420d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  70234.66 SOD {19:30:34.66} UT,   861.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.953
N_STARS:         190
X_OFFSET:        320 [pixels]
Y_OFFSET:        304 [pixels]
X_MAX:           1759 [pixels]
Y_MAX:           1743 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00841548000msufc0861.fits
SUN_POSTN:        83.14d {+05h 32m 33s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.16d {+06h 32m 39s}  +20.68d {+20d 40' 42"}
MOON_DIST:        78.15 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 14 Jun 18 19:33:40 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
POINT_ROLL:      80.420d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  70234.66 SOD {19:30:34.66} UT,   861.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.953
N_STARS:         190
X_OFFSET:        320 [pixels]
Y_OFFSET:        304 [pixels]
X_MAX:           1759 [pixels]
Y_MAX:           1743 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00841548000msufc0861.fits
SUN_POSTN:        83.14d {+05h 32m 33s}  +23.29d {+23d 17' 10"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.16d {+06h 32m 40s}  +20.68d {+20d 40' 42"}
MOON_DIST:        78.15 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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:     Thu 14 Jun 18 19:35:03 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
ROLL:            80.420d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  70234.66 SOD {19:30:34.66} UT,   861.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     550697455
X_OFFSET:        879 [pixels]
Y_OFFSET:        863 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1039
Y_GRB_POS:       1023
BINNING_INDEX:   1
IM_URL:          sw00841548000msuni0883.fits
SUN_POSTN:        83.14d {+05h 32m 33s}  +23.29d {+23d 17' 11"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.18d {+06h 32m 43s}  +20.68d {+20d 40' 43"}
MOON_DIST:        78.16 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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:     Thu 14 Jun 18 19:35:12 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     841548,   Seg_Num: 0
POINT_RA:          3.140d {+00h 12m 34s} (J2000)
POINT_DEC:       +46.945d {+46d 56' 43"} (J2000)
ROLL:            80.420d
IMG_START_DATE:  18283 TJD;   165 DOY;   18/06/14
IMG_START_TIME:  70234.66 SOD {19:30:34.66} UT,   861.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     550697455
X_OFFSET:        879 [pixels]
Y_OFFSET:        863 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1039
Y_GRB_POS:       1023
BINNING_INDEX:   1
IM_URL:          sw00841548000msuni0883.fits
SUN_POSTN:        83.14d {+05h 32m 33s}  +23.29d {+23d 17' 11"}
SUN_DIST:         66.38 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:       98.18d {+06h 32m 44s}  +20.68d {+20d 40' 43"}
MOON_DIST:        78.16 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      116.07,-15.41 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       25.49, 40.96 [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 #22781
P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team.
Using 1822 s of XRT Photon Counting mode data and 2 UVOT images for GRB 180614A, 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 = 3.07846, +46.95299 which is equivalent to:
```
RA (J2000): 00h 12m 18.83s
Dec (J2000): +46d 57' 10.8"
```
with an uncertainty of 1.8 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 #22782
A.P. Beardmore (U. Leicester), P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), B. Sbarufatti (INAF-OAB/PSU), D.N. Burrows (PSU), A. Tohuvavohu (PSU), P.A. Evans (U. Leicester), S.L. Gibson (U. Leicester) and J.D. Gropp report on behalf of the Swift-XRT team:
We have analysed 6.9 ks of XRT data for GRB 180614A (Gropp et al. GCN Circ. 22780), from 77 s to 24.9 ks after the BAT trigger. The data are entirely in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Evans et al. (GCN Circ. 22781).
The light curve can be modelled with a power-law decay with a decay index of alpha=0.70 (+/-0.06).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.8 (+/-0.4). The best-fitting absorption column is 1.7 (+0.5, -0.4) x 10^22 cm^-2, in excess of the Galactic value of 1.1 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 4.0 x 10^-11 (2.0 x 10^-10) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     1.7 (+0.5, -0.4) x 10^22 cm^-2
Galactic foreground: 1.1 x 10^21 cm^-2
Excess significance: 6.8 sigma
Photon index:	     2.8 (+/-0.4)
```
If the light curve continues to decay with a power-law decay index of 0.70, the count rate at T+24 hours will be 4.7 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.9 x 10^-13 (9.2 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/00841548.
This circular is an official product of the Swift-XRT team.
GCN Circular #22783
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, A.Kuznetsov, I. Gorbunov, D. Vlasenko, D.Zimnukhov, D.Kuvshinov, P.Balanutsa, V.Vladimirov Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow State University
R. Podesta, F. Podesta, C. Lopez, C.Francile Observatorio Astronomico Felix Aguilar (OAFA)
H.Levato, C. Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias
D. Buckley South African Astronomical Observatory
O. Gres, N.M.Budnev , Yu.Ishmuhametova Irkutsk State University
A. Tlatov, V.Senik, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory
A. Gabovich, V. Yurkov, Yu. Sergienko Blagoveschensk Educational State University, Blagoveschensk
MASTER-Kislovodsk robotic telescope (MASTER-Net: http://observ.pereplet.ru Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) , located in Kislovodsk Solar Station of Pulkovo observatory, was pointed to the Swift GRB180614A (Gropp et al. GCN #22780) 11 sec after notice time and 26 sec after trigger time at 2018-06-14 19:16:40 UT.
On our images we didn't find optical transient up to 20 mag, within SWIFT error-box RA,Dec=00h 12m 18.83s +46d 57' 10.8" ( Evans et al. GCN22781, Beardmore et al. GCN22782).
We have a number of images with the following unfiltered upper limits:
```
Time_start,UT              Exp,s  m_lim

2018-06-14 19:16:40	10	16.6
2018-06-14 19:17:00	10	16.5
2018-06-14 19:17:20	10	16.7
2018-06-14 19:17:41	20	17.1
2018-06-14 19:18:11	20	17.2
2018-06-14 19:18:41	30	17.3
2018-06-14 19:19:21	40	17.6
2018-06-14 19:20:11	50	17.8
2018-06-14 19:21:12	60	18.0
2018-06-14 19:22:22	70	18.0
2018-06-14 19:25:23	110	18.4
2018-06-14 19:27:23	130	18.4
2018-06-14 19:33:27	180	18.3
2018-06-14 19:33:27    3600     20.0 [20 images x 180 seconds]
2018-06-14 19:36:52	180	18.3
2018-06-14 19:40:16	180	18.3
2018-06-14 19:43:41	180	18.3
2018-06-14 19:47:05	180	18.4
2018-06-14 19:50:29	180	18.6
2018-06-14 19:53:54	180	18.5
2018-06-14 19:57:18	180	18.6
2018-06-14 20:00:43	180	18.6
2018-06-14 20:04:07	180	18.6
2018-06-14 20:07:31	180	18.6
2018-06-14 20:10:55	180	18.6
2018-06-14 20:14:20	180	18.6
2018-06-14 20:17:45	180	18.6
2018-06-14 20:21:09	180	18.8
2018-06-14 20:24:34	180	18.6
2018-06-14 20:27:59	180	18.6
2018-06-14 20:31:23	180	18.9
2018-06-14 20:34:48	180	18.8
2018-06-14 20:38:12	180	18.8
====================================================================
```
The observations started on zenit distance = 78 degrees, galaxy latitude b = -15 degree. The moon ( 2 % bright part) below the horizon (The altitude of the Moon is -15 degree ). The sun altitude is -18.8 degree. The object could be observed up to sunrise at 2018-06-15 01:26:34
GCN Circular #22784
Kasper E. Heintz (Univ. of Iceland and DAWN/NBI), Johan P. U. Fynbo (DAWN/NBI), Daniele B. Malesani (DAWN/NBI and DARK/NBI), Jyri J. Lehtinen (MPS), Teemu Willamo (Univ. of Helsinki), and Paco Galindo (NOT), report on behalf of a larger collaboration:
We observed the field around GRB 180614A (Gropp et al., GCN 22780) with the 2.5-m Nordic Optical Telescope (NOT) equipped with StanCam.
Observations of 3x100 s were carried out in the R filter and started at 04:12:59 UT on June 15, 8.93 hr after trigger. We do not detect the optical counterpart within the enhanced Swift-XRT error circle and calibrated against local photometry from the USNO-B1 catalog we measure an upper limit (at 3-sigma) of m(R) > 22.9 AB mag.
This upper limit is not corrected for the Galactic extinction of A_V = 0.36 mag (Schlafly & Finkbeiner, 2011, ApJ, 737, 103) in the direction of the GRB.
GCN Circular #22786
D. M. Palmer (LANL), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), J. D. Gropp (PSU), H. A. Krimm (NSF/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 180614A (trigger #841548) (Gropp et al., GCN Circ. 22780). The BAT ground-calculated position is RA, Dec = 3.073, 46.969 deg which is
```
  RA(J2000)  =  00h 12m 17.6s
  Dec(J2000) = +46d 58' 07.7"
```
with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%.
The mask-weighted light curve shows a multi-peaked structure that starts at ~T-4 s and ends at ~T+3 s. The main peak occurs at ~T+2 s. T90 (15-350 keV) is 7.04 +- 0.92 sec (estimated error including systematics).
The time-averaged spectrum from T-4.35 to T+3.45 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.53 +- 0.26. The fluence in the 15-150 keV band is 2.1 +- 0.3 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+1.56 sec in the 15-150 keV band is 0.7 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/841548/BA/
GCN Circular #22787
J. D. Gropp (PSU) reports on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 180614A 65s after the BAT trigger (Gropp et al., GCN Circ. 22780). No optical afterglow consistent with the enhanced XRT position (Gropp et al. GCN Circ. 22780) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposure and subsequent exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

b              556     1872    136    >19.63
uvm2       654     1797    136    >18.91
u              300     1847    362    >20.06
v              630     1773    136    >18.75
uvw1        679     1823    136    >19.03
uvw2        605     1922    155    >19.20
white          87     1897    430    >21.15
white_FC    87      237    147    >20.75
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.14 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #22788
Y.-D. Hu, F. Aceituno and A.J. Castro-Tirado (IAA-CSIC Granada), on behalf of a larger collaboration, report:
Following the detection of GRB 180614A by Swift (Gropp et al. GCNC 22780), optical images in the I-band were obtained at the 1.5m OSN telescope in Granada (Spain) starting at 01:57 (Jun 15), i.e. 6.67 h postburst. No optical afterglow is detected in the co-added image (9 x 600s, mid time 02:43 UT, 7.4 h after the trigger) within the enhanced Swift/XRT error box (Beardmore et al. GCNC 22782) down to I=21.0.
GCN Circular #22789
E. Mazaeva (IKI), A. Pozanenko (IKI), R. Inasaridze (AbAO), V. Ayvazian (AbAO), O. Kvaratskhelia (AbAO), G. Kapanadze (AbAO), A. Volnova (IKI), I. Molotov (KIAM), report on behalf of larger GRB follow-up collaboration:
We observed the field of GRB 180614A (Gropp et al., GCN 22780) with AS-32 (0.7m) telescope of Abastumani Observatory starting on June 14 (UT) 21:33:14. We do not detect any object within enhanced XRT position (Evans et al., GCN 22781). Preliminary photometry of the field is following.
```
Date        UT start   t-T0      Filter Exp.   OT    Err. UL
                      (mid, days)        (s)

2018-06-14  21:33:14   0.12582   CR     51*60  n/d   n/d  21.5
```
The photometry is based on nearby USNO-B1.0 stars (R2 magnitude)
```
USNO-B.1_id  R2
1369-0005473 17.71
1369-0005482 16.67
1369-0005487 16.97
1369-0005592 16.51
```

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Jochen Greiner, last update: 16-Jun-2018 [Disclaimer]