Gamma-ray Burst 140301A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:25:22 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     589590,   Seg_Num: 0
GRB_RA:           69.548d {+04h 38m 11s} (J2000),
                  69.679d {+04h 38m 43s} (current),
                  69.085d {+04h 36m 20s} (1950)
GRB_DEC:         -34.283d {-34d 16' 58"} (J2000),
                 -34.256d {-34d 15' 19"} (current),
                 -34.381d {-34d 22' 52"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       8261 [cnts]    Image_Peak=233 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   445     E_range: 15-50 keV
BKG_INTEN:       83567 [cnts]
BKG_TIME:        55452.29 SOD {15:24:12.29} UT
BKG_DUR:         24 [sec]
GRB_DATE:        16717 TJD;    60 DOY;   14/03/01
GRB_TIME:        55489.47 SOD {15:24:49.47} UT
GRB_PHI:         -111.12 [deg]
GRB_THETA:        25.04 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.39 [sigma]
IMAGE_SIGNIF:    7.65 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +1  -2  +0  +0 -11  +0 
SUN_POSTN:       342.43d {+22h 49m 44s}   -7.45d {-07d 27' 13"}
SUN_DIST:         83.55 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.15d {+23h 00m 36s}   -2.53d {-02d 32' 02"}
MOON_DIST:        84.05 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.35 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       59.30,-55.56 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 77.35,-14.84 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:26:48 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     589590,   Seg_Num: 0
GRB_RA:           69.5601d {+04h 38m 14.42s} (J2000),
                  69.6913d {+04h 38m 45.90s} (current),
                  69.0973d {+04h 36m 23.35s} (1950)
GRB_DEC:         -34.2560d {-34d 15' 21.6"} (J2000),
                 -34.2285d {-34d 13' 42.7"} (current),
                 -34.3543d {-34d 21' 15.4"} (1950)
GRB_ERROR:       4.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       3.38e-09 [erg/cm2/sec]
GRB_SIGNIF:      10.04 [sigma]
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55575.57 SOD {15:26:15.57} UT,   86.1 [sec] since BAT Trigger Time
TAM[0-3]:        327.61 237.23 261.60 243.64
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       342.43d {+22h 49m 44s}   -7.45d {-07d 27' 11"}
SUN_DIST:         83.56 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.17d {+23h 00m 40s}   -2.53d {-02d 31' 45"}
MOON_DIST:        84.05 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      235.99,-41.34 [deg] galactic lon,lat of the burst
ECL_COORDS:       59.33,-55.54 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.73 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:26:59 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     589590,   Seg_Num: 0
GRB_RA:           69.5601d {+04h 38m 14.4s} (J2000),
                  69.6913d {+04h 38m 45.9s} (current),
                  69.0973d {+04h 36m 23.3s} (1950)
GRB_DEC:         -34.2560d {-34d 15' 21.6"} (J2000),
                 -34.2285d {-34d 13' 42.7"} (current),
                 -34.3543d {-34d 21' 15.4"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       101 [cnts]
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55575.57 SOD {15:26:15.57} UT,   86.1 [sec] since BAT Trigger Time
CENTROID_X:      288.95,  raw= 289  [pixels]
CENTROID_Y:      259.42,  raw= 259  [pixels]
ROLL:            265.39 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -90.45
GRB_POS_XRT_Z:   -38.52
IMAGE_URL:       sw00589590000msxps_rw.img
SUN_POSTN:       342.43d {+22h 49m 44s}   -7.45d {-07d 27' 11"}
SUN_DIST:         83.56 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.17d {+23h 00m 40s}   -2.53d {-02d 31' 43"}
MOON_DIST:        84.05 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      235.99,-41.34 [deg] galactic lon,lat of the burst
ECL_COORDS:       59.33,-55.54 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:27:15 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     589590,   Seg_Num: 0
GRB_RA:           69.5601d {+04h 38m 14.4s} (J2000),
                  69.6913d {+04h 38m 45.9s} (current),
                  69.0973d {+04h 36m 23.3s} (1950)
GRB_DEC:         -34.2560d {-34d 15' 21.6"} (J2000),
                 -34.2285d {-34d 13' 42.7"} (current),
                 -34.3543d {-34d 21' 15.4"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       101 [cnts]
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55575.57 SOD {15:26:15.57} UT,   86.1 [sec] since BAT Trigger Time
CENTROID_X:      288.95,  raw= 289  [pixels]
CENTROID_Y:      259.42,  raw= 259  [pixels]
ROLL:            265.39 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -90.45
GRB_POS_XRT_Z:   -38.52
IMAGE_URL:       sw00589590000msxps_rw.img
SUN_POSTN:       342.43d {+22h 49m 44s}   -7.45d {-07d 27' 11"}
SUN_DIST:         83.56 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.17d {+23h 00m 41s}   -2.53d {-02d 31' 39"}
MOON_DIST:        84.05 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      235.99,-41.34 [deg] galactic lon,lat of the burst
ECL_COORDS:       59.33,-55.54 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:28:41 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     589590,   Seg_Num: 0
GRB_RA:           69.548d {+04h 38m 11s} (J2000),
                  69.679d {+04h 38m 43s} (current),
                  69.085d {+04h 36m 20s} (1950)
GRB_DEC:         -34.283d {-34d 16' 58"} (J2000),
                 -34.256d {-34d 15' 19"} (current),
                 -34.381d {-34d 22' 52"} (1950)
GRB_DATE:        16717 TJD;    60 DOY;   14/03/01
GRB_TIME:        55489.47 SOD {15:24:49.47} UT
TRIGGER_INDEX:   445
GRB_PHI:         -111.12 [deg]
GRB_THETA:        25.04 [deg]
DELTA_TIME:      -38.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.39 [sigma]
IMAGE_SIGNIF:    7.65 [sigma]
LC_URL:          sw00589590000msb.lc
SUN_POSTN:       342.44d {+22h 49m 44s}   -7.45d {-07d 27' 09"}
SUN_DIST:         83.55 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.18d {+23h 00m 44s}   -2.52d {-02d 31' 22"}
MOON_DIST:        84.03 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.35 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       59.30,-55.56 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Lightcurve.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 77.35,-14.84 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:29:25 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.575d {+04h 38m 18s} (J2000)
POINT_DEC:       -34.281d {-34d 16' 49"} (J2000)
POINT_ROLL:      265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55584.87 SOD {15:26:24.87} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.390
N_STARS:         55
X_OFFSET:        632 [pixels]
Y_OFFSET:        456 [pixels]
X_MAX:           1591 [pixels]
Y_MAX:           1415 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00589590000msufc0095.fits
SUN_POSTN:       342.44d {+22h 49m 45s}   -7.45d {-07d 27' 09"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.19d {+23h 00m 46s}   -2.52d {-02d 31' 13"}
MOON_DIST:        84.05 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:29:50 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.575d {+04h 38m 18s} (J2000)
POINT_DEC:       -34.281d {-34d 16' 49"} (J2000)
POINT_ROLL:      265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55584.87 SOD {15:26:24.87} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.390
N_STARS:         55
X_OFFSET:        632 [pixels]
Y_OFFSET:        456 [pixels]
X_MAX:           1591 [pixels]
Y_MAX:           1415 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00589590000msufc0095.fits
SUN_POSTN:       342.44d {+22h 49m 45s}   -7.45d {-07d 27' 08"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.20d {+23h 00m 47s}   -2.52d {-02d 31' 08"}
MOON_DIST:        84.05 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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:     Sat 01 Mar 14 15:30:53 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.575d {+04h 38m 18s} (J2000)
POINT_DEC:       -34.281d {-34d 16' 49"} (J2000)
ROLL:            265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55584.87 SOD {15:26:24.87} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     415380396
X_OFFSET:        960 [pixels]
Y_OFFSET:        983 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1120
Y_GRB_POS:       1143
BINNING_INDEX:   1
IM_URL:          sw00589590000msuni0107.fits
SUN_POSTN:       342.44d {+22h 49m 45s}   -7.45d {-07d 27' 07"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.21d {+23h 00m 49s}   -2.52d {-02d 30' 56"}
MOON_DIST:        84.04 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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:     Sat 01 Mar 14 15:31:03 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.575d {+04h 38m 18s} (J2000)
POINT_DEC:       -34.281d {-34d 16' 49"} (J2000)
ROLL:            265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55584.87 SOD {15:26:24.87} UT,   95.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     415380396
X_OFFSET:        960 [pixels]
Y_OFFSET:        983 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1120
Y_GRB_POS:       1143
BINNING_INDEX:   1
IM_URL:          sw00589590000msuni0107.fits
SUN_POSTN:       342.44d {+22h 49m 45s}   -7.45d {-07d 27' 07"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.21d {+23h 00m 50s}   -2.52d {-02d 30' 54"}
MOON_DIST:        84.04 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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:     Sat 01 Mar 14 15:37:01 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 44"} (J2000)
POINT_ROLL:      265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55797.23 SOD {15:29:57.23} UT,   307.8 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.436
N_STARS:         35
X_OFFSET:        640 [pixels]
Y_OFFSET:        663 [pixels]
X_MAX:           1599 [pixels]
Y_MAX:           1622 [pixels]
DET_THRESH:      6
PHOTO_THRESH:    3
SL_URL:          sw00589590000msufc0307.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 27' 02"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.26d {+23h 01m 04s}   -2.50d {-02d 29' 42"}
MOON_DIST:        84.00 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:37:25 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 44"} (J2000)
POINT_ROLL:      265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55797.23 SOD {15:29:57.23} UT,   307.8 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.436
N_STARS:         35
X_OFFSET:        640 [pixels]
Y_OFFSET:        663 [pixels]
X_MAX:           1599 [pixels]
Y_MAX:           1622 [pixels]
DET_THRESH:      6
PHOTO_THRESH:    3
SL_URL:          sw00589590000msufc0307.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 27' 01"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.27d {+23h 01m 04s}   -2.49d {-02d 29' 37"}
MOON_DIST:        84.00 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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:     Sat 01 Mar 14 15:37:47 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     589590,   Seg_Num: 0
GRB_RA:           69.5584d {+04h 38m 14.01s} (J2000),
                  69.6896d {+04h 38m 45.49s} (current),
                  69.0956d {+04h 36m 22.94s} (1950)
GRB_DEC:         -34.2565d {-34d 15' 23.4"} (J2000),
                 -34.2290d {-34d 13' 44.5"} (current),
                 -34.3548d {-34d 21' 17.2"} (1950)
GRB_ERROR:       3.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55710.00 SOD {15:28:30.00} UT,   220.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 27' 01"}
SUN_DIST:         83.55 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.27d {+23h 01m 05s}   -2.49d {-02d 29' 32"}
MOON_DIST:        83.98 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      235.99,-41.34 [deg] galactic lon,lat of the burst
ECL_COORDS:       59.33,-55.54 [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:     Sat 01 Mar 14 15:38:15 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 44"} (J2000)
ROLL:            265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55797.23 SOD {15:29:57.23} UT,   307.8 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     415380608
X_OFFSET:        960 [pixels]
Y_OFFSET:        983 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1120
Y_GRB_POS:       1143
BINNING_INDEX:   1
IM_URL:          sw00589590000msuni0319.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 27' 00"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.28d {+23h 01m 06s}   -2.49d {-02d 29' 27"}
MOON_DIST:        84.00 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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:     Sat 01 Mar 14 15:38:30 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 44"} (J2000)
ROLL:            265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  55797.23 SOD {15:29:57.23} UT,   307.8 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     415380608
X_OFFSET:        960 [pixels]
Y_OFFSET:        983 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1120
Y_GRB_POS:       1143
BINNING_INDEX:   1
IM_URL:          sw00589590000msuni0319.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 27' 00"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.28d {+23h 01m 07s}   -2.49d {-02d 29' 24"}
MOON_DIST:        84.00 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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 #15896
K. L. Page (U Leicester), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU), N. Gehrels (NASA/GSFC) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 15:24:49 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 140301A (trigger=589590). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 69.548, -34.283 which is
```
   RA(J2000)  =  04h 38m 11s
   Dec(J2000) = -34d 16' 58"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a single peak with a duration of about 10 sec. The peak count rate was ~1300 counts/sec (15-350 keV), at ~1 sec after the trigger.
The XRT began observing the field at 15:26:15.5 UT, 86.1 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source with an enhanced position: RA, Dec 69.5584, -34.2565 which is equivalent to:
```
   RA(J2000)  = 04h 38m 14.02s
   Dec(J2000) = -34d 15' 23.6"
```
with an uncertainty of 3.4 arcseconds (radius, 90% containment). This location is 100 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 2.23 x 10^20 cm^-2 (Kalberla et al. 2005).
The initial flux in the 2.5 s image was 3.38e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 95 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 0.03.
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:     Sat 01 Mar 14 15:40:53 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 43"} (J2000)
POINT_ROLL:      265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  56351.20 SOD {15:39:11.20} UT,   861.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        0.501
N_STARS:         44
X_OFFSET:        400 [pixels]
Y_OFFSET:        423 [pixels]
X_MAX:           1839 [pixels]
Y_MAX:           1862 [pixels]
DET_THRESH:      7
PHOTO_THRESH:    3
SL_URL:          sw00589590000msufc0861.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 26' 58"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.30d {+23h 01m 13s}   -2.48d {-02d 28' 55"}
MOON_DIST:        83.98 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:41:19 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 43"} (J2000)
ROLL:            265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  56351.20 SOD {15:39:11.20} UT,   861.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     415381162
X_OFFSET:        959 [pixels]
Y_OFFSET:        982 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1119
Y_GRB_POS:       1142
BINNING_INDEX:   1
IM_URL:          sw00589590000msuni0873.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 26' 57"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.31d {+23h 01m 14s}   -2.48d {-02d 28' 50"}
MOON_DIST:        83.98 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [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:     Sat 01 Mar 14 15:41:31 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 43"} (J2000)
ROLL:            265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  56351.20 SOD {15:39:11.20} UT,   861.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     415381162
X_OFFSET:        959 [pixels]
Y_OFFSET:        982 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1119
Y_GRB_POS:       1142
BINNING_INDEX:   1
IM_URL:          sw00589590000msuni0873.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 26' 57"}
SUN_DIST:         83.56 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.31d {+23h 01m 14s}   -2.48d {-02d 28' 47"}
MOON_DIST:        83.98 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 01 Mar 14 15:41:08 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     589590,   Seg_Num: 0
POINT_RA:         69.578d {+04h 38m 19s} (J2000)
POINT_DEC:       -34.279d {-34d 16' 43"} (J2000)
POINT_ROLL:      265.389d
IMG_START_DATE:  16717 TJD;    60 DOY;   14/03/01
IMG_START_TIME:  56351.20 SOD {15:39:11.20} UT,   861.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        0.501
N_STARS:         44
X_OFFSET:        400 [pixels]
Y_OFFSET:        423 [pixels]
X_MAX:           1839 [pixels]
Y_MAX:           1862 [pixels]
DET_THRESH:      7
PHOTO_THRESH:    3
SL_URL:          sw00589590000msufc0861.fits
SUN_POSTN:       342.44d {+22h 49m 46s}   -7.45d {-07d 26' 58"}
SUN_DIST:         83.57 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      345.30d {+23h 01m 13s}   -2.48d {-02d 28' 52"}
MOON_DIST:        83.98 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      236.02,-41.33 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       59.34,-55.57 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN Circular #15897
A. Trotter, J. Haislip, A. LaCluyze, D. Reichart, A. Verveer, T. Spuck, A. Foster, N. Frank, K. Ivarsen, J. Moore, M. Nysewander, R. Beauchemin, T. Berger, M. Carroll, H. T. Cromartie, R. Egger, M. Hinckle, A. Ireland, M. Maples, L. Scott, and J. A. Crain report:
Skynet observed the Swift-BAT localization of GRB 140301A (Page et al., GCN 15896, Swift trigger 589590) with the 14-inch R-COP telescope at Perth Observatory, Australia. Observations began at 93s and continued until 33m post-trigger, with rotating exposures in the BVRI bands increasing from 10s to 80s. We detect no optical source in stacked images in any band at the position of the source detected by the Swift XRT. Preliminary upper limits are:
```
Band      tmid      mag
V         17m       >18.5
R         22m       >19.0
I         18m       >18.0
```
Photometry is calibrated to seven APASS-DR7 stars in the field, and has not been corrected for the Galactic foreground extinction corresponding to E(B-V)=0.03 (Schlegel et al. 1998).
No further Skynet observations are scheduled.
GCN Circular #15898
M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team.
Using 691 s of XRT Photon Counting mode data and 2 UVOT images for GRB 140301A, 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 = 69.55743, -34.25679 which is equivalent to:
```
RA (J2000): 04h 38m 13.78s
Dec (J2000): -34d 15' 24.4"
```
with an uncertainty of 1.9 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 #15899
T. Kruehler (ESO), D. Malesani, D. Xu, J. P. U. Fynbo (DARK/NBI), T. J. Rivera-Thorsen (Stockholm), J. Puschnig (Stockholm), P. Jakobsson (Univ. Iceland), report on behalf of a larger collaboration:
We observed the field of GRB 140301A (Page et al., GCN 15896) with the Nordic Optical Telescope equipped with the MOSCA imager. Observations were taken at high airmass, in twilight, using the R and z filters.
Consistent with the position of the XRT afterglow (Goad et al., GCN 15898), our images show the presence of a faint object in the R band, with coordinates:
```
RA = 04:38:13.78
Dec = -34:15:23.5
```
and uncertainties of approximately 0.5" in each coordinate.
At a midtime of 4.97 hr after the trigger, we measure a brightness of R = 23.1 +/- 0.3 mag. This magnitude is calibrated against stars from the USNO-B1 catalog.
No statement about fading can be made at this point.
GCN Circular #15900
T. Kruehler (ESO), N. R. Tanvir (Univ. Leicester) D. Malesani, D. Xu, J. P. U. Fynbo (DARK/NBI) report on behalf of a larger collaboration:
We observed the optical source (Kruehler et al., GCN 15899) inside the XRT error circle (Goad et al., GCN 15898) of GRB 140301A (Page et al., GCN 15896) with the VLT equipped with the X-shooter spectrograph.
Our spectrum covers the wavelength range between 3000 and 20000 AA and consists of 12 nodded spectra with an integration time of 600 s each. A preliminary analysis of the spectrum reveals a faint continuum in which we tentatively identify absorption lines of the MgII doublet at z = 1.416.
At the same redshift and with a spatial offset of up to ~1" we detect strong emission lines of [OII], Hbeta, [OIII], Halpha and [NII], characteristic for emission from the GRB host.
We acknowledge excellent support from the observing staff in Paranal, in particular Julien Girard and Valentin Ivanov.
GCN Circular #15904
J. Elliott (MPE Garching), S. Schmidl (TLS Tautenburg), J. Greiner (also MPE Garching) report on behalf of the GROND team:
We observed the field of GRB 140301A (Swift trigger 589590; Page et al., GCN #15896) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG/ESO telescope at La Silla Observatory (Chile).
Observations started at 00:07 UT on 2nd March 2014, 9.72 hrs after the GRB trigger. They were performed at an average seeing of 2.2" and at an average airmass of 1.3.
We find a single point source within the 1.9" refined Swift-XRT error circle reported by Goad et al. (GCN #15898) and confirm the source found by Kruehler et al. (GCN #15899, #15900).
Based on an exposure of 2.5 hours we estimate preliminary magnitudes (AB system) of
```
g' = 24.2 +/- 0.2,
r' = 23.8 +/- 0.2,
i' = 23.2 +/- 0.2,
z' = 22.4 +/- 0.2,
J  > 21.8,
H  > 21.3, and
K  > 20.6.
```
Given magnitudes are calibrated against GROND zeropoints as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E(B-V) = 0.03 mag in the direction of the burst (Schlegel et al. 1998).
GCN Circular #15905
K. L. Page (U Leicester) reports on behalf of the Swift-XRT team:
We have analysed 5.9 ks of XRT data for GRB 140301A (Page et al. GCN Circ. 15896), from 92 s to 51.3 ks after the BAT trigger. The data comprise 382 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Goad et al. (GCN Circ. 15898).
The late-time light curve (from T0+6.4 ks) can be modelled with a power-law decay with a decay index of alpha=0.95 (+0.32, -0.29).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 2.01 (+/-0.09). The best-fitting absorption column is 3.3 (+/-1.0) x 10^21 cm^-2, at a redshift of 1.416, in addition to the Galactic value of 2.2 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 2.42 (+0.32, -0.29) and a best-fitting absorption column of 7.2 (+4.1, -3.3) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.0 x 10^-11 (4.8 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Galactic foreground: 2.2 x 10^20 cm^-2
Intrinsic column:    7.2 (+4.1, -3.3) x 10^21 cm^-2 at z=1.416
Photon index:	     2.42 (+0.32, -0.29)
```
If the light curve continues to decay with a power-law decay index of 0.95, the count rate at T+24 hours will be 5.8 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.7 x 10^-13 (2.8 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/00589590.
This circular is an official product of the Swift-XRT team.
GCN Circular #15906
T. N. Ukwatta (MSU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), K. L. Page (U Leicester), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), (i.e. the Swift-BAT team):
Using the data set from T-239 to T+886 sec from recent telemetry downlinks, we report further analysis of BAT GRB 140301A (trigger #589590) (Page, et al., GCN Circ. 15896). The BAT ground-calculated position is RA, Dec = 69.521, -34.249 deg, which is
```
   RA(J2000)  =  04h 38m 05.0s 
   Dec(J2000) = -34d 14' 56.8" 
```
with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 66%.
The mask-weighted light curve shows a roughly symmetric peak starting at ~T-15 sec, peaking at ~T+1 sec, and ending at ~T+20 sec. T90 (15-350 keV) is 31.0 +- 5.7 sec (estimated error including systematics).
The time-averaged spectrum from T-13.18 to T+22.82 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.96 +- 0.28. The fluence in the 15-150 keV band is 4.4 +- 0.8 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+0.82 sec in the 15-150 keV band is 0.7 +- 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/589590/BA/
GCN Circular #15913
B. Porterfield (PSU) and R. Starling (U Leicester) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 140301A 95 s after the BAT trigger (Page et al., GCN Circ. 15896). No optical afterglow consistent with the XRT position (Goad et al. GCN Circ. 15898) is detected in the initial UVOT exposures. No counterpart consistent with the optical counterpart observed by NOT (Kruehler et al. GCN Circ. 15899) is detected. 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           108          258          292         >21.8
u_FC               320          744          265         >20.7
white              108          920          231         >21.1
v                  650          843           38         >18.7
v                 6583        22273          392         >20.2
b                  749          769           19         >19.2
b                27968        28212          240         >21.0
u                  320          744          265         >20.7
w1                 700          719           19         >17.9
w1               11294        45552         1408         >21.1
w2                 799          818           19         >17.8
w2                6378        58531         1122         >21.4
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #16064
A. Klotz, D. Turpin (IRAP-CNRS-OMP), D. Macpherson (UWA/ICRAR), D. Coward (UWA), M. Boer, B. Gendre, K. Siellez, H. Dereli, O. Bardho (UNS-CNRS-OCA), A. Williams (PO-UWA), R. Martin (PO-UWA) report:
We imaged the field of GRB 140301A detected by SWIFT (trigger 589590) with the Zadko robotic telescope (D=100cm) located at the observatory - Gingin, Australia.
The observations started 70.7s after the GRB trigger (40.5s after the notice). The elevation of the field was at 26 degrees above horizon and weather conditions were good. Images were retrieved 30 days after their acquisitions due to a storage software problem.
The first image is trailed with a duration of 60.0s (see the description in Klotz et al., 2006, A&A 451, L39). We do not detect any OT with a limiting magnitude of: t0+70.7s to t0+130.7s : Rlim = 18.4
The second image is 30.0s exposure in tracking mode: t0+159s to t0+189s : Rlim = 19.7
We co-added series of unfiltered exposures. The OT discovered by Kruehler et al. (GCNC 15899) is marginally detected 841 s (+/-255 s) after the trigger. More precisely the photometry is:
```
=start= =end=
  159 s   275 s  CRlim = 21.8
  289 s   465 s  CRlim = 21.8
  586 s  1096 s  CR = 21.7 +/- 0.4
1217 s  1727 s  CRlim = 21.9
```
This suggests this faint afterglow had culminated in brightness R=21.7 at t0+841s. Then it had declined to R=23.1 at t0+4.97h (Kruehler et al. GCN 15899) and to r'=23.8 at t0+11h (Elliott et al. GCNC 15904). This is compatible with a temporal decay of ~0.5.
A photometry follow-up was performed with the Zadko telescope :
```
=start= =end=
20.4 h  20.8 h  CRlim = 22.2
```
All magnitudes were estimated with the nearby NOMAD1 stars and are not corrected for galactic dust extinction.
GCN Report 460.1
GCN_Report 460.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_460_1.pdf by K.L. Page at U. Leicester titled: "Swift Observations of GRB 140301A"

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Jochen Greiner, last update: 26-Apr-2014 [Disclaimer]