Gamma-ray Burst 190114A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:13:59 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     883600,   Seg_Num: 0
GRB_RA:           65.544d {+04h 22m 11s} (J2000),
                  65.791d {+04h 23m 10s} (current),
                  64.894d {+04h 19m 35s} (1950)
GRB_DEC:          +2.170d {+02d 10' 11"} (J2000),
                  +2.213d {+02d 12' 48"} (current),
                  +2.053d {+02d 03' 11"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1746 [image_cnts]
TRIGGER_DUR:     176.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        18497 TJD;    14 DOY;   19/01/14
GRB_TIME:        11449.75 SOD {03:10:49.75} UT
GRB_PHI:          34.32 [deg]
GRB_THETA:        23.15 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.28 [sigma]
MERIT_PARAMS:     +1  +0  +0  +7  +1  -3  +0  +0 +61  +0 
SUN_POSTN:       295.51d {+19h 42m 03s}  -21.37d {-21d 21' 58"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.25d {+01h 29m 00s}   +3.61d {+03d 36' 25"}
MOON_DIST:        43.50 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.63,-31.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       64.04,-19.09 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 245.02,-7.19 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:15:38 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     883600,   Seg_Num: 0
GRB_RA:           65.5441d {+04h 22m 10.5s} (J2000),
                  65.7917d {+04h 23m 10.0s} (current),
                  64.8942d {+04h 19m 34.6s} (1950)
GRB_DEC:          +2.1896d {+02d 11' 22.5"} (J2000),
                  +2.2333d {+02d 13' 59.7"} (current),
                  +2.0729d {+02d 04' 22.4"} (1950)
GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       49 [cnts]
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11696.43 SOD {03:14:56.43} UT,   246.7 [sec] since BAT Trigger Time
CENTROID_X:      313.86,  raw= 314  [pixels]
CENTROID_Y:      264.74,  raw= 265  [pixels]
ROLL:            244.43 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -79.34
GRB_POS_XRT_Z:   17.60
IMAGE_URL:       sw00883600000msxps_rw.img
SUN_POSTN:       295.51d {+19h 42m 03s}  -21.37d {-21d 21' 57"}
SUN_DIST:        128.01 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.26d {+01h 29m 03s}   +3.61d {+03d 36' 44"}
MOON_DIST:        43.49 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.61,-31.45 [deg] galactic lon,lat of the burst
ECL_COORDS:       64.04,-19.07 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:15:28 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     883600,   Seg_Num: 0
GRB_RA:           65.5441d {+04h 22m 10.58s} (J2000),
                  65.7917d {+04h 23m 10.01s} (current),
                  64.8942d {+04h 19m 34.60s} (1950)
GRB_DEC:          +2.1896d {+02d 11' 22.5"} (J2000),
                  +2.2333d {+02d 13' 59.7"} (current),
                  +2.0729d {+02d 04' 22.4"} (1950)
GRB_ERROR:       5.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.18e-09 [erg/cm2/sec]
GRB_SIGNIF:      7.00 [sigma]
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11696.43 SOD {03:14:56.43} UT,   246.7 [sec] since BAT Trigger Time
TAM[0-3]:        327.66 237.22 261.67 243.60
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       295.51d {+19h 42m 03s}  -21.37d {-21d 21' 57"}
SUN_DIST:        128.01 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.26d {+01h 29m 03s}   +3.61d {+03d 36' 42"}
MOON_DIST:        43.49 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.61,-31.45 [deg] galactic lon,lat of the burst
ECL_COORDS:       64.04,-19.07 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.19 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:16:50 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     883600,   Seg_Num: 0
GRB_RA:           65.544d {+04h 22m 11s} (J2000),
                  65.791d {+04h 23m 10s} (current),
                  64.894d {+04h 19m 35s} (1950)
GRB_DEC:          +2.170d {+02d 10' 11"} (J2000),
                  +2.213d {+02d 12' 48"} (current),
                  +2.053d {+02d 03' 11"} (1950)
GRB_DATE:        18497 TJD;    14 DOY;   19/01/14
GRB_TIME:        11449.75 SOD {03:10:49.75} UT
TRIGGER_INDEX:   20000
GRB_PHI:          34.32 [deg]
GRB_THETA:        23.15 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     176.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.28 [sigma]
LC_URL:          sw00883600000msb.lc
SUN_POSTN:       295.51d {+19h 42m 03s}  -21.37d {-21d 21' 57"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.27d {+01h 29m 06s}   +3.62d {+03d 36' 57"}
MOON_DIST:        43.48 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.63,-31.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       64.04,-19.09 [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 an image 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 = 245.02,-7.19 [deg].  
COMMENTS:        The 2nd packet (of 3) was missing in the lightcurve data stream.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:15:35 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     883600,   Seg_Num: 0
GRB_RA:           65.5441d {+04h 22m 10.5s} (J2000),
                  65.7917d {+04h 23m 10.0s} (current),
                  64.8942d {+04h 19m 34.6s} (1950)
GRB_DEC:          +2.1896d {+02d 11' 22.5"} (J2000),
                  +2.2333d {+02d 13' 59.7"} (current),
                  +2.0729d {+02d 04' 22.4"} (1950)
GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       49 [cnts]
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11696.43 SOD {03:14:56.43} UT,   246.7 [sec] since BAT Trigger Time
CENTROID_X:      313.86,  raw= 314  [pixels]
CENTROID_Y:      264.74,  raw= 265  [pixels]
ROLL:            244.43 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -79.34
GRB_POS_XRT_Z:   17.60
IMAGE_URL:       sw00883600000msxps_rw.img
SUN_POSTN:       295.51d {+19h 42m 03s}  -21.37d {-21d 21' 57"}
SUN_DIST:        128.01 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.26d {+01h 29m 03s}   +3.61d {+03d 36' 43"}
MOON_DIST:        43.49 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.61,-31.45 [deg] galactic lon,lat of the burst
ECL_COORDS:       64.04,-19.07 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:18:04 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.168d {+02d 10' 04"} (J2000)
POINT_ROLL:      244.430d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11707.62 SOD {03:15:07.62} UT,   257.9 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.317
N_STARS:         27
X_OFFSET:        525 [pixels]
Y_OFFSET:        725 [pixels]
X_MAX:           1484 [pixels]
Y_MAX:           1684 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    6
SL_URL:          sw00883600000msufc0257.fits
SUN_POSTN:       295.51d {+19h 42m 04s}  -21.37d {-21d 21' 56"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.28d {+01h 29m 08s}   +3.62d {+03d 37' 11"}
MOON_DIST:        43.48 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.63,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:18:21 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.168d {+02d 10' 04"} (J2000)
POINT_ROLL:      244.430d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11707.62 SOD {03:15:07.62} UT,   257.9 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.317
N_STARS:         27
X_OFFSET:        525 [pixels]
Y_OFFSET:        725 [pixels]
X_MAX:           1484 [pixels]
Y_MAX:           1684 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    6
SL_URL:          sw00883600000msufc0257.fits
SUN_POSTN:       295.52d {+19h 42m 04s}  -21.37d {-21d 21' 56"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.29d {+01h 29m 09s}   +3.62d {+03d 37' 14"}
MOON_DIST:        43.47 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.63,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [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:     Mon 14 Jan 19 03:19:35 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.168d {+02d 10' 04"} (J2000)
ROLL:            244.430d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11707.62 SOD {03:15:07.62} UT,   257.9 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     569128529
X_OFFSET:        845 [pixels]
Y_OFFSET:        1045 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1005
Y_GRB_POS:       1205
BINNING_INDEX:   1
IM_URL:          sw00883600000msuni0280.fits
SUN_POSTN:       295.52d {+19h 42m 04s}  -21.37d {-21d 21' 56"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.30d {+01h 29m 11s}   +3.62d {+03d 37' 28"}
MOON_DIST:        43.46 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.63,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [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:     Mon 14 Jan 19 03:19:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.168d {+02d 10' 04"} (J2000)
ROLL:            244.430d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11707.62 SOD {03:15:07.62} UT,   257.9 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     569128529
X_OFFSET:        845 [pixels]
Y_OFFSET:        1045 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1005
Y_GRB_POS:       1205
BINNING_INDEX:   1
IM_URL:          sw00883600000msuni0280.fits
SUN_POSTN:       295.52d {+19h 42m 04s}  -21.37d {-21d 21' 55"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.30d {+01h 29m 12s}   +3.63d {+03d 37' 32"}
MOON_DIST:        43.46 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.63,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [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 Circular #23677
S. J. LaPorte (PSU), J. A. Kennea (PSU), N. J. Klingler (PSU), A. Y. Lien (GSFC/UMBC), D. M. Palmer (LANL) and M. H. Siegel (PSU) report on behalf of the Neil Gehrels Swift Observatory Team:
At 03:10:49 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 190114A (trigger=883600). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 65.544, +2.170 which is
```
   RA(J2000) = 04h 22m 11s
   Dec(J2000) = +02d 10' 11"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). Due to a telemetry gap, the BAT lightcurve is not available.
The XRT began observing the field at 03:14:56.4 UT, 246.6 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source located at RA, Dec 65.54341, 2.19058 which is equivalent to:
```
   RA(J2000)  = 04h 22m 10.42s
   Dec(J2000) = +02d 11' 26.1"
```
with an uncertainty of 3.6 arcseconds (radius, 90% containment). This location is 74 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 in excess of the Galactic value (1.62 x 10^21 cm^-2, Willingale et al. 2013), with an excess column of 4.1 (+2.51/-2.16) x 10^21 cm^-2 (90% confidence).
The initial flux in the 2.5 s image was 1.18e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 257 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 0.22.
Burst Advocate for this burst is S. J. LaPorte (extragsam AT gmail.com). 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:     Mon 14 Jan 19 03:28:00 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.166d {+02d 09' 57"} (J2000)
POINT_ROLL:      244.429d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  12309.32 SOD {03:25:09.32} UT,   859.6 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.310
N_STARS:         107
X_OFFSET:        285 [pixels]
Y_OFFSET:        485 [pixels]
X_MAX:           1724 [pixels]
Y_MAX:           1924 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    6
SL_URL:          sw00883600000msufc0859.fits
SUN_POSTN:       295.52d {+19h 42m 05s}  -21.36d {-21d 21' 52"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.36d {+01h 29m 27s}   +3.65d {+03d 39' 04"}
MOON_DIST:        43.40 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.64,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Jan 19 03:28:15 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.166d {+02d 09' 57"} (J2000)
POINT_ROLL:      244.429d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  12309.32 SOD {03:25:09.32} UT,   859.6 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.310
N_STARS:         107
X_OFFSET:        285 [pixels]
Y_OFFSET:        485 [pixels]
X_MAX:           1724 [pixels]
Y_MAX:           1924 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    6
SL_URL:          sw00883600000msufc0859.fits
SUN_POSTN:       295.52d {+19h 42m 05s}  -21.36d {-21d 21' 52"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.37d {+01h 29m 28s}   +3.65d {+03d 39' 07"}
MOON_DIST:        43.39 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.64,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [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:     Mon 14 Jan 19 03:29:32 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.166d {+02d 09' 57"} (J2000)
ROLL:            244.429d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  12309.32 SOD {03:25:09.32} UT,   859.6 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     569129131
X_OFFSET:        844 [pixels]
Y_OFFSET:        1044 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1004
Y_GRB_POS:       1204
BINNING_INDEX:   1
IM_URL:          sw00883600000msuni0882.fits
SUN_POSTN:       295.52d {+19h 42m 06s}  -21.36d {-21d 21' 51"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.38d {+01h 29m 30s}   +3.66d {+03d 39' 21"}
MOON_DIST:        43.38 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.64,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [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:     Mon 14 Jan 19 03:28:37 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     883600,   Seg_Num: 0
GRB_RA:           65.5437d {+04h 22m 10.48s} (J2000),
                  65.7913d {+04h 23m 09.91s} (current),
                  64.8938d {+04h 19m 34.50s} (1950)
GRB_DEC:          +2.1911d {+02d 11' 27.9"} (J2000),
                  +2.2348d {+02d 14' 05.1"} (current),
                  +2.0744d {+02d 04' 27.8"} (1950)
GRB_ERROR:       2.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  11786.00 SOD {03:16:26.00} UT,   336.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       295.52d {+19h 42m 05s}  -21.36d {-21d 21' 52"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.37d {+01h 29m 29s}   +3.65d {+03d 39' 11"}
MOON_DIST:        43.38 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.61,-31.45 [deg] galactic lon,lat of the burst
ECL_COORDS:       64.04,-19.07 [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:     Mon 14 Jan 19 03:29:44 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     883600,   Seg_Num: 0
POINT_RA:         65.549d {+04h 22m 12s} (J2000)
POINT_DEC:        +2.166d {+02d 09' 57"} (J2000)
ROLL:            244.429d
IMG_START_DATE:  18497 TJD;    14 DOY;   19/01/14
IMG_START_TIME:  12309.32 SOD {03:25:09.32} UT,   859.6 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     569129131
X_OFFSET:        844 [pixels]
Y_OFFSET:        1044 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1004
Y_GRB_POS:       1204
BINNING_INDEX:   1
IM_URL:          sw00883600000msuni0882.fits
SUN_POSTN:       295.52d {+19h 42m 06s}  -21.36d {-21d 21' 51"}
SUN_DIST:        128.00 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:       22.38d {+01h 29m 31s}   +3.66d {+03d 39' 24"}
MOON_DIST:        43.38 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      191.64,-31.45 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       64.04,-19.10 [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 #23678
M. H. Siegel (PSU) and S. J. LaPorte (PSU) report on behalf of the Swift/UVOT team.
UVOT took a finding chart exposure of 150 seconds with the White filter starting 859 seconds after the BAT trigger. There is a candidate afterglow in the rapidly available 2.7'x2.7' sub-image at RA(J2000) = 04:22:10.57 = 65.54403 DEC(J2000) = +02:11:29.3 = 2.19146 with a 90%-confidence error radius of about 0.79 arc sec. This position is 1.7 arc sec. from the center of the XRT error circle. The estimated magnitude is 19.52 with a 1-sigma error of about 0.17. No correction has been made for the expected extinction corresponding to E(B-V) of 0.22.
GCN Circular #23679
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Using promptly downlinked XRT event data for GRB 190114A, we find an enhanced XRT position of the afterglow: RA, Dec: 65.5439, 2.1913 which is equivalent to:
```
   RA (J2000)  = 04 22 10.54
   Dec (J2000) = +02 11 28.6
```
with an uncertainty of 2.0 arcseconds (radius, 90% confidence). Analysis of the promptly available data is online at http://www.swift.ac.uk/sper/883600.
Position enhancement is is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177).
This circular is an official product of the Swift-XRT team.
GCN Circular #23680
A. de Ugarte Postigo (HETH/IAA-CSIC and DARK/NBI), N. R. Tanvir (U. Leicester), D. Xu (NAOC), JPU.Fynbo (DAWN/NBI and DAWN/DTU) report on behalf of the STARGATE Consortium:
We observed the optical counterpart of the Swift GRB 190114A (LaPorte et al. GCN 23677, Siegel et al. GCN 23678) with the ESO Very Large Telescope UT 2 (Kueyen) equipped with the X-shooter spectrograph, covering the wavelength range 3500-24000 AA. Observations started on 2019 Jan 14 03:25 UT (approx 15 min after the GRB).
The spectrum exhibits many absorption features, including Lya, SII, OI, OI*, SiII, SiII*, CII, CII*, NiII, SiIV, CIV, FeII, FeII*, AlII, AlIII, ZnII, MgII, MgI, and CaII at a common redshift of z=3.3765. We conclude that this is the redshift of the GRB. We also identify an intervening system at a redshift of z=2.6232, characterised by strong features due to MgII, FeII and AlII.
We acknowledge the expert support from the ESO observing staff, in particular Elizabeth Bartlett, Trystyn Berg and Juan Carlos Olivares, and the visiting astronomer, Boris Gaensicke.
GCN Circular #23681
P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team.
Using 1511 s of XRT Photon Counting mode data and 2 UVOT images for GRB 190114A, 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 = 65.54389, +2.19150 which is equivalent to:
```
RA (J2000): 04h 22m 10.53s
Dec (J2000): +02d 11' 29.4"
```
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 #23682
J. Bolmer (MPE, Garching) and P. Schady (Univ. of Bath) report:
We observed the field of GRB 190114A (Swift trigger 883600; LaPorte et al., GCN #23677) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG telescope at ESO La Silla Observatory (Chile).
Observations started at 03:16 UT on 14th January, around 5 minutes after the GRB trigger. They were performed at an average seeing of 1.4" and at an average airmass of 1.3.
We found a faint source within the 1.7 arcsec Swift-XRT error circle reported by Evans et al. (GCN #23681) at
```
RA (J2000.0) = 4:22:10.58
DEC (J2000.0) = +2:11:28.32
```
with an uncertainty of 0.25" in each coordinate.
Based on the first 6.5 min of exposure, we report the following preliminary JHK magnitudes:
```
J = 16.41 +/- 0.05 mag
H = 15.88 +/- 0.05 mag
K = 15.53 +/- 0.07 mag
```
The above magnitudes are calibrated against 2MASS and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.19 in the direction of theburst (Schlafly & Finkbeiner 2011).
GCN Circular #23683
P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), J.A. Kennea (PSU), B. Sbarufatti (INAF-OAB/PSU), D.N. Burrows (PSU), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester) and S.J. LaPorte report on behalf of the Swift-XRT team:
We have analysed 6.8 ks of XRT data for GRB 190114A (LaPorte et al. GCN Circ. 23677), from 235 s to 19.0 ks after the BAT trigger. The data comprise 64 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 Evans et al. (GCN Circ. 23679).
The light curve can be modelled with a series of power-law decays. The initial decay index is alpha=7.87 (+0.13, -0.43). At T+403 s the decay flattens to an alpha of 0.01 (+0.20, -0.17) before breaking again at T+2398 s to a final decay with index alpha=1.16 (+/-0.14).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 2.38 (+0.17, -0.12). The best-fitting absorption column is 1 (+13, -1) x 10^21 cm^-2, at a redshift of 3.3765, in addition to the Galactic value of 1.6 x 10^21 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.80 (+0.09, -0.08) and a best-fitting absorption column of 2 (+10, -2) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.9 x 10^-11 (4.8 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Galactic foreground: 1.6 x 10^21 cm^-2
Intrinsic column:    2 (+10, -2) x 10^21 cm^-2 at z=3.3765
Photon index:	     1.80 (+0.09, -0.08)
```
If the light curve continues to decay with a power-law decay index of 1.16, the count rate at T+24 hours will be 0.013 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 5.0 x 10^-13 (6.2 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/00883600.
This circular is an official product of the Swift-XRT team.
GCN Circular #23685
S. D. Barthelmy (GSFC), J. R. Cummings (CPI), H. A. Krimm (NSF/USRA), S. J. LaPorte (PSU), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 190114A (trigger #883600) (LaPorte et al., GCN Circ. 23677). The BAT ground-calculated position is RA, Dec = 65.543, 2.196 deg which is
```
  RA(J2000)  =  04h 22m 10.2s
  Dec(J2000) = +02d 11' 45.8"
```
with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 78%.
The mask-weighted light curve shows some weak-overlapping pulses that start at ~T+125 s and end at ~T+200 s. T90 (15-350 keV) is 66.6 +- 10.2 sec (estimated error including systematics).
The time-averaged spectrum from T+126.40 to T+199.22 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 2.06 +- 0.22. The fluence in the 15-150 keV band is 8.0 +- 1.2 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+151.08 sec in the 15-150 keV band is 0.5 +- 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/883600/BA/
GCN Circular #23687
A. de Ugarte Postigo (HETH/IAA-CSIC and DARK/NBI), D. A. Kann, L. Izzo, C. C. Thoene, M. Blazek, K. Bensch (all HETH/IAA-CSIC), and F. Aceituno (IAA-CSIC) report:
We observed the optical afterglow of GRB 190114A (Siegel & LaPorte, GCN #23678), detected by Swift (LaPorte et al., GCN #23677), with the T150 telescope of the Sierra Nevada Observatory (OSN). We obtained 5 x 360 s images in the Ic band at 16.98 hours after the GRB. The afterglow is well-detected in each single image.
```
Days	Ic mag	error

0.7075	20.41	0.10
```
Magnitudes are given in the AB system. They were measured vs. four Pan-STARRS comparison stars, using the transformation equations of Lupton (2005), and transformed back into AB mags.
GCN Circular #23697
Jonatan Selsing (DAWN/NBI and DAWN/DTU), A. de Ugarte Postigo (HETH/IAA-CSIC and DARK/NBI), and Kasper E. Heintz (Univ. of Iceland), report on behalf of a larger collaboration:
We observed the optical afterglow of GRB 190114A (LaPorte et al., GCN 23677; Siegel et al., GCN 23678; de Ugarte Postigo et al., GCN 23680: Bolmer et al., GCN 23682: D'Avanzo et al., GCN 23683) with the 2.5-m Nordic Optical Telescope (NOT) equipped with the ALFOSC instrument.
We have carried out a three r-band imaging integrations each lasting 300s. The observations started in twilight on 2019.01.14 at 19:54:06 UT, ~16.5 hours after the BAT trigger. The afterglow is still well detected.�
Calibrating the photometric zeropoint against the Pan-STARRS catalog we derive�
r = 21.24 +- 0.08 AB mag.
We do not detect any counterpart to the intervening system at z=2.6232 reported by de Ugarte Postigo et al. (GCN 23680) down to a 3-simga limiting magnitude of r > 22.44.
We acknowledge excellent support from the NOT observing staff, Sune Dyrbye
GCN Circular #23718
E. Mazaeva (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), A. Volnova (IKI), S. Belkin (IKI) report on behalf of of larger GRB follow-up collaboration:
We observed the field of GRB 190114A (LaPorte et al., GCN 23677) with AZT-33IK telescope of Sayan observatory (Mondy). We obtained several images in R-filter starting on Jan. 14 (UT) 11:43:08, i.e. ~ 9 hours after the BAT trigger. The afterglow (Siegel et al., GCN 23678; de Ugarte Postigo et al., GCN 23680; Bolmer et al., GCN 23682; de Ugarte Postigo et al., GCN 23687; Selsing et al., GCN 23697) is clearly detected in a stacked image. Preliminary photometry is following.
```
Date       UT start t-T0    Filter  Exp.  OT    Err. UL
���������������������(mid, days)     (s)
2019-01-14 11:43:08 0.37663 R       60*60 20.10 0.09 21.8
```
The photometry is based on nearby PanSTARRS stars.
```
PanSTARRS_id          R(applied Lupton' transformation)
110620655351961024    16.89
110610655260315104    17.67
110600655358532464    17.05
110580655437279536    17.37
```
GCN Circular #23719
M. H. Siegel (PSU) and S. J. LaPorte (PSU) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 190114A 258 s after the BAT trigger (LaPorte et al., GCN Circ. 23677). We confirm a source consistent with the XRT position (Evans et al. GCN Circ. 23681) as initially reported in UVOT (Siegel \& LaPorte, GCN Circ. 23678) and later detected by GROND (Bolmer \& Schady, GCN Circ. 23682), OSN (de Ugarte Postigo et al., GCN Circ. 23687) and NOT (Selsing et al., GCN Circ. 23697). Notably, the optical counterpart was not seen in the initial finding chart and had faded beyond detectability by the second orbit. The lack of detection in any of the NUV filters would be consistent with the redshift of 3.4 reported by de Ugarte Postigo et al. (GCN Circ. 23680).
The preliminary UVOT position is:
```
   RA  (J2000) =  04:22:10.55 =  65.54397 (deg.)
   Dec (J2000) = +02:11:29.6  =   2.19157 (deg.)
```
with an estimated uncertainty of 0.42 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 early exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)           Mag

white (fc)         258          408          147        >20.58
white              514         1701          264         19.69+/-0.13
v                  564         1752          136         18.33+/-0.22
b                  490         1676          136         19.57+/-0.27
u                  465         1825          155        >19.64
uvw1               440         1801          155        >19.17
uvm2              5866         7502          393        >19.66
uvw2               540         1726          136        >19.12
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.22 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #23731
Gregory S.H. Paek, Myungshin Im, Changsu Choi, Sophia Kim (CEOU/SNU), Hyun-Il Sung (KASI), and Yuji Urata (NCU) on behalf of a larger collaboration
We observed the afterglow of GRB 190114A(LaPorte et al., GCN 23677; Siegel et al., GCN 23678; Evans et al., GCN 23679; de Ugarte Postigo et al., GCN 23680; Evans et al., 23681; Bolmer et al., GCN 23682; D'Avanzo et al., GCN 23683; Barthelmy et al., GCN 23685; de Ugarte Postigo et al., GCN 23687; Selsing et al. GCN 23697) with the 1.0m telescope at the Deokheung Optical Astronomy Observatory and the 1.0m telescope at the Lemonsan Optical Astronomical Observatory. The observation at the Deokheung Optical Astronomy Observatory started at about 0.2 hours after the initial alert and the observation at the Lemonsan Optical Astronomy Observatory started at about 24.7 hours after the initial alert. We did not find any positive signal at both observations and obtained following preliminary 3 sigma upper limits.
```
obs         mjd         filter      exptime[sec]     ul[AB magtnitude]
DOAO        58497.642   R           60*10     >17.1
LOAO        58498.660   R           120*15    >20.3
```
The photometry is based on nearby APASS stars, Blaton transformation (Blaton et al. 2007).
Further observations and analysis are being carried out.
--
*Gregory Sung-Hak Paek (백승학)*
Graduate Student,
Astronomy program at Department of Physics & Astronomy,
SNU (Seoul National University, South Korea)
B.S. in Astronomy and Space Science (CNU, ~2017)
GCN Circular #23738
Gregory S.H. Paek, Myungshin Im, Changsu Choi, Sophia Kim (CEOU/SNU), Hyun-Il Sung (KASI), and Yuji Urata (NCU) on behalf of a larger collaboration
This report is an errata version for GCN 23731. The time duration between the initial alert and observing time at Deokheung Optical Astronomy Observatory was changed from '0.2 hours' to '12.3 hours.'
We observed the afterglow of GRB 190114A(LaPorte et al., GCN 23677; Siegel et al., GCN 23678; Evans et al., GCN 23679; de Ugarte Postigo et al., GCN 23680; Evans et al., 23681; Bolmer et al., GCN 23682; D'Avanzo et al., GCN 23683; Barthelmy et al., GCN 23685; de Ugarte Postigo et al., GCN 23687; Selsing et al. GCN 23697) with the 1.0m telescope at the Deokheung Optical Astronomy Observatory and the 1.0m telescope at the Lemonsan Optical Astronomical Observatory. The observation at the Deokheung Optical Astronomy Observatory started at about 12.3 hours after the initial alert and the observation at the Lemonsan Optical Astronomy Observatory started at about 24.7 hours after the initial alert. We did not find any positive signal at both observations and obtained following preliminary 3 sigma upper limits.
```
obs         mjd         filter      exptime[sec]     ul[AB magtnitude]
DOAO        58497.642   R           60*10     >17.1
LOAO        58498.660   R           120*15    >20.3
```
The photometry is based on nearby APASS stars, Blaton transformation (Blaton et al. 2007).
Further observations and analysis are being carried out
GCN Circular #23739
A. de Ugarte Postigo (HETH/IAA-CSIC and DARK/NBI), M. Bremer, O. Feher (both IRAM), S. Schulze (Weizmann), C. C. Thoene, L. Izzo, D. A. Kann, M. Blazek, K. Bensch (all HETH/IAA-CSIC), D. A. Perley (LJMU), S. Martin (ALMA), I. de Gregorio-Monsalvo (ESO), M. Michalowski (AOI-AMU), D. B. Malesani (DARK/NBI, DAWN/NBI) R. Sanchez-Ramirez (INAF-IAPS) report:
We observed the afterglow of GRB 190114A (LaPorte et al., GCN 23677, Siegel et al. GCN 23678), at a redshift of z = 3.3765 (de Ugarte Postigo et al. GCN 23680) with NOEMA at 76, 92, 136 and 152 GHz. Observations started at 21:02 UT on 15 January, 42 hrs after the GRB. The afterglow is well detected at all frequencies and had a flux density of 0.9 mJy at 92 GHz.
We derive the following refined coordinates for the afterglow:
```
R.A.(J2000): 04:22:10.58   
Dec.(J2000): +02:11:28.4
with an error of +/- 0.1"
```
Further follow-up observations are encouraged

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Jochen Greiner, last update: 16-Jan-2019 [Disclaimer]