Gamma-ray Burst 130102A

(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:     Wed 02 Jan 13 18:12:12 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     544784,   Seg_Num: 0
GRB_RA:          311.464d {+20h 45m 51s} (J2000),
                 311.567d {+20h 46m 16s} (current),
                 311.071d {+20h 44m 17s} (1950)
GRB_DEC:         +49.835d {+49d 50' 06"} (J2000),
                 +49.883d {+49d 52' 59"} (current),
                 +49.651d {+49d 39' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1934 [image_cnts]
TRIGGER_DUR:     64.000 [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:        16294 TJD;     2 DOY;   13/01/02
GRB_TIME:        65453.94 SOD {18:10:53.94} UT
GRB_PHI:         -74.47 [deg]
GRB_THETA:         9.96 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    9.90 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +0  +0  +1 -22  +0 
SUN_POSTN:       283.60d {+18h 54m 25s}  -22.85d {-22d 50' 51"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.56d {+10h 50m 14s}   +2.11d {+02d 06' 19"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.33,  4.22 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      341.91, 63.30 [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 = 267.67,-1.29 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:13:28 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     544784,   Seg_Num: 0
GRB_RA:          311.4262d {+20h 45m 42.28s} (J2000),
                 311.5285d {+20h 46m 06.84s} (current),
                 311.0328d {+20h 44m 07.88s} (1950)
GRB_DEC:         +49.8220d {+49d 49' 19.2"} (J2000),
                 +49.8700d {+49d 52' 11.8"} (current),
                 +49.6385d {+49d 38' 18.6"} (1950)
GRB_ERROR:       6.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       5.62e-10 [erg/cm2/sec]
GRB_SIGNIF:      4.69 [sigma]
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65570.39 SOD {18:12:50.39} UT,   116.4 [sec] since BAT Trigger Time
TAM[0-3]:        327.69 237.22 261.62 243.33
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       283.60d {+18h 54m 25s}  -22.85d {-22d 50' 51"}
SUN_DIST:         76.83 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.57d {+10h 50m 16s}   +2.10d {+02d 06' 05"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.31,  4.23 [deg] galactic lon,lat of the burst
ECL_COORDS:      341.85, 63.31 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.67 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:13:38 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     544784,   Seg_Num: 0
GRB_RA:          311.4262d {+20h 45m 42.2s} (J2000),
                 311.5285d {+20h 46m 06.8s} (current),
                 311.0328d {+20h 44m 07.8s} (1950)
GRB_DEC:         +49.8220d {+49d 49' 19.2"} (J2000),
                 +49.8700d {+49d 52' 11.8"} (current),
                 +49.6385d {+49d 38' 18.6"} (1950)
GRB_ERROR:       6.1 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       22 [cnts]
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65570.39 SOD {18:12:50.39} UT,   116.4 [sec] since BAT Trigger Time
CENTROID_X:      259.32,  raw= 259  [pixels]
CENTROID_Y:      264.37,  raw= 264  [pixels]
ROLL:            206.27 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -79.27
GRB_POS_XRT_Z:   -104.60
IMAGE_URL:       sw00544784000msxps_rw.img
SUN_POSTN:       283.60d {+18h 54m 25s}  -22.85d {-22d 50' 51"}
SUN_DIST:         76.83 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.57d {+10h 50m 16s}   +2.10d {+02d 06' 03"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.31,  4.23 [deg] galactic lon,lat of the burst
ECL_COORDS:      341.85, 63.31 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:13:43 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     544784,   Seg_Num: 0
GRB_RA:          311.4262d {+20h 45m 42.2s} (J2000),
                 311.5285d {+20h 46m 06.8s} (current),
                 311.0328d {+20h 44m 07.8s} (1950)
GRB_DEC:         +49.8220d {+49d 49' 19.2"} (J2000),
                 +49.8700d {+49d 52' 11.8"} (current),
                 +49.6385d {+49d 38' 18.6"} (1950)
GRB_ERROR:       6.1 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       22 [cnts]
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65570.39 SOD {18:12:50.39} UT,   116.4 [sec] since BAT Trigger Time
CENTROID_X:      259.32,  raw= 259  [pixels]
CENTROID_Y:      264.37,  raw= 264  [pixels]
ROLL:            206.27 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -79.27
GRB_POS_XRT_Z:   -104.60
IMAGE_URL:       sw00544784000msxps_rw.img
SUN_POSTN:       283.60d {+18h 54m 25s}  -22.85d {-22d 50' 51"}
SUN_DIST:         76.83 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.57d {+10h 50m 17s}   +2.10d {+02d 06' 02"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.31,  4.23 [deg] galactic lon,lat of the burst
ECL_COORDS:      341.85, 63.31 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:16:41 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.476d {+20h 45m 54s} (J2000)
POINT_DEC:       +49.837d {+49d 50' 15"} (J2000)
POINT_ROLL:      206.265d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65579.75 SOD {18:12:59.75} UT,   125.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.665
N_STARS:         190
X_OFFSET:        560 [pixels]
Y_OFFSET:        568 [pixels]
X_MAX:           1519 [pixels]
Y_MAX:           1527 [pixels]
DET_THRESH:      18
PHOTO_THRESH:    10
SL_URL:          sw00544784000msufc0125.fits
SUN_POSTN:       283.61d {+18h 54m 26s}  -22.85d {-22d 50' 50"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.59d {+10h 50m 22s}   +2.09d {+02d 05' 28"}
MOON_DIST:       121.60 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.93, 63.30 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:15:00 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     544784,   Seg_Num: 0
GRB_RA:          311.464d {+20h 45m 51s} (J2000),
                 311.567d {+20h 46m 16s} (current),
                 311.071d {+20h 44m 17s} (1950)
GRB_DEC:         +49.835d {+49d 50' 06"} (J2000),
                 +49.883d {+49d 52' 59"} (current),
                 +49.651d {+49d 39' 05"} (1950)
GRB_DATE:        16294 TJD;     2 DOY;   13/01/02
GRB_TIME:        65453.94 SOD {18:10:53.94} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -74.47 [deg]
GRB_THETA:         9.96 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    9.90 [sigma]
LC_URL:          sw00544784000msb.lc
SUN_POSTN:       283.61d {+18h 54m 25s}  -22.85d {-22d 50' 51"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.58d {+10h 50m 19s}   +2.10d {+02d 05' 47"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.33,  4.22 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      341.91, 63.30 [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 = 267.67,-1.29 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:17:22 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.476d {+20h 45m 54s} (J2000)
POINT_DEC:       +49.837d {+49d 50' 15"} (J2000)
POINT_ROLL:      206.265d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65579.75 SOD {18:12:59.75} UT,   125.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.665
N_STARS:         190
X_OFFSET:        560 [pixels]
Y_OFFSET:        568 [pixels]
X_MAX:           1519 [pixels]
Y_MAX:           1527 [pixels]
DET_THRESH:      18
PHOTO_THRESH:    10
SL_URL:          sw00544784000msufc0125.fits
SUN_POSTN:       283.61d {+18h 54m 26s}  -22.85d {-22d 50' 50"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.60d {+10h 50m 24s}   +2.09d {+02d 05' 20"}
MOON_DIST:       121.60 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.93, 63.30 [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:     Wed 02 Jan 13 18:18:17 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.476d {+20h 45m 54s} (J2000)
POINT_DEC:       +49.837d {+49d 50' 15"} (J2000)
ROLL:            206.265d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65579.75 SOD {18:12:59.75} UT,   125.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     378843189
X_OFFSET:        1074 [pixels]
Y_OFFSET:        907 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1234
Y_GRB_POS:       1067
BINNING_INDEX:   1
IM_URL:          sw00544784000msuni0136.fits
SUN_POSTN:       283.61d {+18h 54m 26s}  -22.85d {-22d 50' 50"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.61d {+10h 50m 26s}   +2.09d {+02d 05' 10"}
MOON_DIST:       121.60 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.93, 63.30 [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:     Wed 02 Jan 13 18:18:29 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.476d {+20h 45m 54s} (J2000)
POINT_DEC:       +49.837d {+49d 50' 15"} (J2000)
ROLL:            206.265d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65579.75 SOD {18:12:59.75} UT,   125.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     378843189
X_OFFSET:        1074 [pixels]
Y_OFFSET:        907 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1234
Y_GRB_POS:       1067
BINNING_INDEX:   1
IM_URL:          sw00544784000msuni0136.fits
SUN_POSTN:       283.61d {+18h 54m 26s}  -22.85d {-22d 50' 50"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.61d {+10h 50m 26s}   +2.09d {+02d 05' 08"}
MOON_DIST:       121.60 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.93, 63.30 [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:     Wed 02 Jan 13 18:23:47 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
POINT_ROLL:      206.269d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65737.84 SOD {18:15:37.84} UT,   283.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.302
N_STARS:         131
X_OFFSET:        754 [pixels]
Y_OFFSET:        587 [pixels]
X_MAX:           1713 [pixels]
Y_MAX:           1546 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00544784000msufc0283.fits
SUN_POSTN:       283.61d {+18h 54m 27s}  -22.85d {-22d 50' 48"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.65d {+10h 50m 37s}   +2.07d {+02d 04' 08"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:24:06 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
POINT_ROLL:      206.269d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65737.84 SOD {18:15:37.84} UT,   283.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.302
N_STARS:         131
X_OFFSET:        754 [pixels]
Y_OFFSET:        587 [pixels]
X_MAX:           1713 [pixels]
Y_MAX:           1546 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00544784000msufc0283.fits
SUN_POSTN:       283.61d {+18h 54m 27s}  -22.85d {-22d 50' 48"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.66d {+10h 50m 37s}   +2.07d {+02d 04' 04"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [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:     Wed 02 Jan 13 18:24:42 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     544784,   Seg_Num: 0
GRB_RA:          311.4232d {+20h 45m 41.56s} (J2000),
                 311.5255d {+20h 46m 06.13s} (current),
                 311.0298d {+20h 44m 07.15s} (1950)
GRB_DEC:         +49.8173d {+49d 49' 02.2"} (J2000),
                 +49.8653d {+49d 51' 54.9"} (current),
                 +49.6338d {+49d 38' 01.7"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65645.00 SOD {18:14:05.00} UT,   191.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       283.61d {+18h 54m 27s}  -22.85d {-22d 50' 48"}
SUN_DIST:         76.82 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.66d {+10h 50m 39s}   +2.07d {+02d 03' 57"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.30,  4.23 [deg] galactic lon,lat of the burst
ECL_COORDS:      341.84, 63.30 [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:     Wed 02 Jan 13 18:25:13 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
ROLL:            206.269d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65737.84 SOD {18:15:37.84} UT,   283.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     378843347
X_OFFSET:        1074 [pixels]
Y_OFFSET:        907 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1234
Y_GRB_POS:       1067
BINNING_INDEX:   1
IM_URL:          sw00544784000msuni0294.fits
SUN_POSTN:       283.61d {+18h 54m 27s}  -22.85d {-22d 50' 48"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.67d {+10h 50m 40s}   +2.06d {+02d 03' 51"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [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:     Wed 02 Jan 13 18:25:29 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
ROLL:            206.269d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  65737.84 SOD {18:15:37.84} UT,   283.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     378843347
X_OFFSET:        1074 [pixels]
Y_OFFSET:        907 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1234
Y_GRB_POS:       1067
BINNING_INDEX:   1
IM_URL:          sw00544784000msuni0294.fits
SUN_POSTN:       283.61d {+18h 54m 27s}  -22.85d {-22d 50' 48"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.67d {+10h 50m 40s}   +2.06d {+02d 03' 48"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [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 #14127
K. L. Page (U Leicester), S. D. Barthelmy (GSFC), A. P. Beardmore (U Leicester), N. Gehrels (NASA/GSFC), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), F. E. Marshall (NASA/GSFC), B. Sbarufatti (INAF-OAB/PSU) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 18:10:53 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130102A (trigger=544784). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 311.464, +49.835 which is
```
   RA(J2000)  =  20h 45m 51s
   Dec(J2000) = +49d 50' 06"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). As per usual for an image trigger, the TDRSS lightcurve does not show anything significant.
The XRT began observing the field at 18:12:50.3 UT, 116.5 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source with an enhanced position: RA, Dec 311.4233, 49.8174 which is equivalent to:
```
   RA(J2000)  = 20h 45m 41.60s
   Dec(J2000) = +49d 49' 02.6"
```
with an uncertainty of 2.1 arcseconds (radius, 90% containment). This location is 113 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 7.96 x 10^21 cm^-2 (Kalberla et al. 2005).
The initial flux in the 2.5 s image was 5.62e-10 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 125 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 large, but uncertain extinction expected.
We note that this event is at galactic coordinates: l = 88.33 deg, b = 4.22 deg. It has the characteristics of a GRB, but could be a galactic transient since it is close to the galactic plane.
Burst Advocate for this burst is K. L. Page (kpa AT star.le.ac.uk). 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:     Wed 02 Jan 13 18:29:18 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
POINT_ROLL:      206.270d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  66318.74 SOD {18:25:18.74} UT,   864.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.155
N_STARS:         190
X_OFFSET:        514 [pixels]
Y_OFFSET:        347 [pixels]
X_MAX:           1953 [pixels]
Y_MAX:           1786 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00544784000msufc0864.fits
SUN_POSTN:       283.62d {+18h 54m 28s}  -22.85d {-22d 50' 47"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.70d {+10h 50m 48s}   +2.05d {+02d 03' 05"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 02 Jan 13 18:29:45 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
POINT_ROLL:      206.270d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  66318.74 SOD {18:25:18.74} UT,   864.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.155
N_STARS:         190
X_OFFSET:        514 [pixels]
Y_OFFSET:        347 [pixels]
X_MAX:           1953 [pixels]
Y_MAX:           1786 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00544784000msufc0864.fits
SUN_POSTN:       283.62d {+18h 54m 28s}  -22.85d {-22d 50' 47"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.70d {+10h 50m 49s}   +2.05d {+02d 02' 60"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [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:     Wed 02 Jan 13 18:30:45 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
ROLL:            206.270d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  66318.74 SOD {18:25:18.74} UT,   864.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     378843928
X_OFFSET:        1073 [pixels]
Y_OFFSET:        906 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1233
Y_GRB_POS:       1066
BINNING_INDEX:   1
IM_URL:          sw00544784000msuni0875.fits
SUN_POSTN:       283.62d {+18h 54m 28s}  -22.85d {-22d 50' 47"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.71d {+10h 50m 51s}   +2.05d {+02d 02' 48"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [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:     Wed 02 Jan 13 18:31:01 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     544784,   Seg_Num: 0
POINT_RA:        311.479d {+20h 45m 55s} (J2000)
POINT_DEC:       +49.840d {+49d 50' 25"} (J2000)
ROLL:            206.270d
IMG_START_DATE:  16294 TJD;     2 DOY;   13/01/02
IMG_START_TIME:  66318.74 SOD {18:25:18.74} UT,   864.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     378843928
X_OFFSET:        1073 [pixels]
Y_OFFSET:        906 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1233
Y_GRB_POS:       1066
BINNING_INDEX:   1
IM_URL:          sw00544784000msuni0875.fits
SUN_POSTN:       283.62d {+18h 54m 28s}  -22.85d {-22d 50' 47"}
SUN_DIST:         76.85 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      162.71d {+10h 50m 51s}   +2.05d {+02d 02' 45"}
MOON_DIST:       121.59 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:       88.34,  4.22 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      341.94, 63.30 [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 #14128
J. Gorosabel (IAA-CSIC) & L. Toribio (IAC), report on behalf of a larger collaboration:
"We observed the Swift/XRT location of GRB 130102A (Page et al., GCNC 14127) using the 82cm IAC80 telescope at the Observatorio del Teide (Tenerife, Spain). We took a set of I-band images on Jan 2.7924--2.8340 UT (0.84--1.83 hours post burst). No optical source brighter than I~21 (Vega) is detected inside the XRT error circle."
GCN Circular #14129
J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
Using 1933 s of XRT Photon Counting mode data and 2 UVOT images for GRB 130102A, 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 = 311.42346, +49.81764 which is equivalent to:
```
RA (J2000): 20h 45m 41.63s
Dec (J2000): +49d 49' 03.5"
```
with an uncertainty of 1.6 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 #14131
P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC), M.C. Stroh (PSU), D.N. Burrows (PSU), J.A. Kennea (PSU), C. Pagani (U. Leicester), A.P. Beardmore (U. Leicester), A. Maselli (INAF-IASFPA) and K.L. Page report on behalf of the Swift-XRT team:
We have analysed 10 ks of XRT data for GRB 130102A (Page et al. GCN Circ. 14127), from 109 s to 24.6 ks after the BAT trigger. The data comprise 66 s in Windowed Timing (WT) mode (the first 5 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 Osborne et al. (GCN. Circ 14129).
The light curve can be modelled with a series of power-law decays. The initial decay index is alpha=1.33 (+0.21, -0.20). At T+456 s the decay steepens to an alpha of 5.5 (+1.9, -1.2) before breaking again at T+924 s to a final decay with index alpha=0.88 (+0.31, -0.28).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.0 (+0.4, -0.3). The best-fitting absorption column is 1.13 (+0.34, -0.29) x 10^22 cm^-2, in excess of the Galactic value of 8.0 x 10^21 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 5.8 x 10^-11 (1.2 x 10^-10) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     1.13 (+0.34, -0.29) x 10^22 cm^-2
Galactic foreground: 8.0 x 10^21 cm^-2
Excess significance: 1.9 sigma
Photon index:	     2.0 (+0.4, -0.3)
```
If the light curve continues to decay with a power-law decay index of 0.88, the count rate at T+24 hours will be 5.2 x 10^-4 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.0 x 10^-14 (6.4 x 10^-14) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00544784.
This circular is an official product of the Swift-XRT team.
GCN Circular #14132
E. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, N.Shatskiy, P.Balanutsa, A.Kuznetsov, V.V.Chazov, D.Denisenko
Lomonosov Moscow State University, Sternberg Astronomical Institute
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk
K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University
V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka
Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
Claudio Mallamaci, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA)
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Kislovodsk was pointed to the GRB130102A (Page et. al. GCN14127) 104 sec after GRB time at 2013-01-02 18:12:37 UT in two polarizations. On our first (20s exposure) set we haven`t found optical transient within SWIFT error-box. The 5-sigma upper limit has been about 17.9 mag
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located near Blagoveschensk was pointed to the GRB130102A (Page et. al. GCN 14127) 107 sec after GRB time at 2013-01-02 18:12:40 UT in two diagonal polarizations. On our first (20s exposure) set we haven`t found optical transient within SWIFT error-box. The 5-sigma upper limit has been about 13.9 mag. The low limit is the resultsa of the high zenit distance.
We note that there are no objects in any catalogs 10" around center of the Swift XRT error box (Osborne et. al. GCN 14129).
The message may be cited.
GCN Circular #14133
C. B. Markwardt (GSFC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), K. L. Page (U Leicester), D. M. Palmer (LANL), T. Sakamoto (AGU), G. Sato (ISAS), 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 130102A (trigger #544784) (Page, et al., GCN Circ. 14127). The BAT ground-calculated position is RA, Dec = 311.435, 49.838 deg which is
```
   RA(J2000)  =  20h 45m 44.4s 
   Dec(J2000) = +49d 50' 16.4" 
```
with an uncertainty of 2.3 arcmin, (radius, sys+stat, 90% containment). The partial coding was 99%.
The mask-weighted light curve shows a peak starting at ~T+10 sec, peaking at ~T+22 sec, and ending around T+180 sec. There is a possibility of emission out to at least T+230 sec. T90 (15-350 keV) is 77.5 +- 18.2 sec (estimated error including systematics).
The time-averaged spectrum from T+12.51 to T+100.43 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.39 +- 0.18. The fluence in the 15-150 keV band is 7.2 +- 0.9 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+23.54 sec in the 15-150 keV band is 0.4 +- 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/544784/BA/
GCN Circular #14134
S. B. Cenko (UC Berkeley) reports on behalf of a larger collaboration:
We have imaged the field of GRB130102A (Page et al., GCN 14127) with the robotic Palomar 60 inch telescope (P60). Observations began at 01:56 on 2013 January 3 (~ 7.8 hours after the Swift trigger), and were obtained under poor seeing conditions in the r', i', and z' filters.
We do not detect any sources within the enhanced XRT error localization (Osborne et al., GCN 14129). Using nearby point sources from the AAVSO Photometric All-Sky Survey (APASS) for calibration, we measure limiting magnitudes of r' > 20.9, i' > 20.5 at this time. We note that these limits do not include a correction for the large Galactic extinction along this line of sight.
GCN Circular #14136
T. A. Pritchard (PSU) and K. L. Page (U Leicester) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130102A 126 s after the BAT trigger (Page et al., GCN Circ. 14127). No optical afterglow consistent with the XRT position (Osborne et al. GCN Circ. 14129) 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

white_FC           126          276          147         >21.1
u_FC               284          534          246         >20.4
white              126         7587          844         >22.4
v                  614        12045         1343         >20.9
b                  540         7382          549         >20.8
u                  284         7177          775         >20.5
w1                 664         6972          549         >20.2
m2                 639        12641          934         >20.7
w2                 590         7794          568         >20.7
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 1.90 in the direction of the burst (Schlegel et al. 1998).
GCN Report 411.1
GCN_Report 411.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_411_1.pdf by K.L. Page at U.Leicester titled: "Swift Observations of GRB 130102A"

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Jochen Greiner, last update: 08-Jan-2013 [Disclaimer]