Gamma-ray Burst 200630A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 01:59:01 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     980210,   Seg_Num: 0
GRB_RA:           91.380d {+06h 05m 31s} (J2000),
                  91.438d {+06h 05m 45s} (current),
                  91.237d {+06h 04m 57s} (1950)
GRB_DEC:         -60.789d {-60d 47' 20"} (J2000),
                 -60.792d {-60d 47' 30"} (current),
                 -60.783d {-60d 46' 57"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3312 [cnts]    Image_Peak=179 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       19561 [cnts]
BKG_TIME:        6558.79 SOD {01:49:18.79} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6574.47 SOD {01:49:34.47} UT
GRB_PHI:          72.44 [deg]
GRB_THETA:        21.68 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     15.26 [sigma]
IMAGE_SIGNIF:    9.07 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +0  +0  +0 -10  +0 
SUN_POSTN:        99.53d {+06h 38m 07s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.20 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.26d {+14h 05m 03s}   -7.99d {-07d 59' 27"}
MOON_DIST:        96.83 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.79,-28.98 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       96.67,-84.20 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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 = 183.70,-4.90 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=615174580).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Tue 30 Jun 20 01:49:59 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      44
TRIGGER_NUM:     615174580
GRB_RA:           99.583d {+06h 38m 20s} (J2000),
                  99.732d {+06h 38m 56s} (current),
                  99.220d {+06h 36m 53s} (1950)
GRB_DEC:         -45.283d {-45d 16' 59"} (J2000),
                 -45.302d {-45d 18' 08"} (current),
                 -45.238d {-45d 14' 15"} (1950)
GRB_ERROR:       12.50 [deg radius, statistical plus systematic]
GRB_INTEN:       114 [cnts/sec]
DATA_SIGNIF:     5.70 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6575.08 SOD {01:49:35.08} UT
GRB_PHI:         100.00 [deg]
GRB_THETA:        30.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      1.08
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      97%  GRB
2nd_MOST_LIKELY:   1%  Generic SGR
DETECTORS:       1,0,0, 0,0,0, 0,0,0, 1,0,0, 0,0,
SUN_POSTN:        99.52d {+06h 38m 06s}  +23.15d {+23d 08' 50"}
SUN_DIST:         68.45 [deg]   Sun_angle= -0.0 [hr] (East of Sun)
MOON_POSTN:      211.18d {+14h 04m 43s}   -7.96d {-07d 57' 22"}
MOON_DIST:        98.99 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      254.09,-21.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      108.32,-68.11 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_lc_medres34_bn200630076.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 198.32,20.15 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Tue 30 Jun 20 01:50:17 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      57
TRIGGER_NUM:     615174580
GRB_RA:           71.330d {+04h 45m 19s} (J2000),
                  71.398d {+04h 45m 35s} (current),
                  71.166d {+04h 44m 40s} (1950)
GRB_DEC:         -60.980d {-60d 58' 47"} (J2000),
                 -60.944d {-60d 56' 36"} (current),
                 -61.070d {-61d 04' 09"} (1950)
GRB_ERROR:       6.25 [deg radius, statistical only]
DATA_SIGNIF:     9.10 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6575.08 SOD {01:49:35.08} UT
GRB_PHI:         114.00 [deg]
GRB_THETA:        51.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4173 (Gnd S/W Version number)
SUN_POSTN:        99.52d {+06h 38m 06s}  +23.15d {+23d 08' 50"}
SUN_DIST:         87.12 [deg]   Sun_angle= 1.9 [hr] (West of Sun)
MOON_POSTN:      211.18d {+14h 04m 44s}   -7.96d {-07d 57' 26"}
MOON_DIST:       104.26 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      270.96,-38.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       25.43,-80.10 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_lc_medres34_bn200630076.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_615174580.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:        The POS_MAP_URL file will not be created/available until ~1.5 min after the notice.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Tue 30 Jun 20 01:50:20 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      57
TRIGGER_NUM:     615174580
GRB_RA:           71.330d {+04h 45m 19s} (J2000),
                  71.398d {+04h 45m 35s} (current),
                  71.166d {+04h 44m 40s} (1950)
GRB_DEC:         -60.980d {-60d 58' 47"} (J2000),
                 -60.944d {-60d 56' 36"} (current),
                 -61.070d {-61d 04' 09"} (1950)
GRB_ERROR:       6.25 [deg radius, statistical only]
DATA_SIGNIF:     9.10 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6575.08 SOD {01:49:35.08} UT
GRB_PHI:         114.00 [deg]
GRB_THETA:        51.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4173 (Gnd S/W Version number)
SUN_POSTN:        99.52d {+06h 38m 06s}  +23.15d {+23d 08' 50"}
SUN_DIST:         87.12 [deg]   Sun_angle= 1.9 [hr] (West of Sun)
MOON_POSTN:      211.18d {+14h 04m 44s}   -7.96d {-07d 57' 27"}
MOON_DIST:       104.26 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      270.96,-38.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       25.43,-80.10 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_lc_medres34_bn200630076.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_615174580.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:        The POS_MAP_URL file will not be created/available until ~1.5 min after the notice.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Tue 30 Jun 20 01:58:54 UT
NOTICE_TYPE:     Fermi-GBM Final Position
RECORD_NUM:      0
TRIGGER_NUM:     615174580
GRB_RA:           86.560d {+05h 46m 14s} (J2000),
                  86.600d {+05h 46m 24s} (current),
                  86.464d {+05h 45m 51s} (1950)
GRB_DEC:         -62.950d {-62d 57' 00"} (J2000),
                 -62.943d {-62d 56' 34"} (current),
                 -62.967d {-62d 58' 00"} (1950)
GRB_ERROR:       7.50 [deg radius, statistical only]
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6575.08 SOD {01:49:35.08} UT
GRB_PHI:         120.00 [deg]
GRB_THETA:        45.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:        99.53d {+06h 38m 07s}  +23.15d {+23d 08' 48"}
SUN_DIST:         86.70 [deg]   Sun_angle= 0.9 [hr] (West of Sun)
MOON_POSTN:      211.26d {+14h 05m 03s}   -7.99d {-07d 59' 25"}
MOON_DIST:        97.61 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      272.21,-31.31 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       66.32,-86.10 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_lc_medres34_bn200630076.gif
LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_locplot_all_bn200630076.png
COMMENTS:        Fermi-GBM Final Position.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file should be available by the time this FINAL notice is produced.  
COMMENTS:        This notice was generated completely by automated pipeline processing.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This is likely a Long GRB.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Tue 30 Jun 20 01:58:57 UT
NOTICE_TYPE:     Fermi-GBM Final Position
RECORD_NUM:      0
TRIGGER_NUM:     615174580
GRB_RA:           86.560d {+05h 46m 14s} (J2000),
                  86.600d {+05h 46m 24s} (current),
                  86.464d {+05h 45m 51s} (1950)
GRB_DEC:         -62.950d {-62d 57' 00"} (J2000),
                 -62.943d {-62d 56' 34"} (current),
                 -62.967d {-62d 58' 00"} (1950)
GRB_ERROR:       7.50 [deg radius, statistical only]
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6575.08 SOD {01:49:35.08} UT
GRB_PHI:         120.00 [deg]
GRB_THETA:        45.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:        99.53d {+06h 38m 07s}  +23.15d {+23d 08' 48"}
SUN_DIST:         86.70 [deg]   Sun_angle= 0.9 [hr] (West of Sun)
MOON_POSTN:      211.26d {+14h 05m 03s}   -7.99d {-07d 59' 26"}
MOON_DIST:        97.61 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      272.21,-31.31 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       66.32,-86.10 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_lc_medres34_bn200630076.gif
LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200630076/quicklook/glg_locplot_all_bn200630076.png
COMMENTS:        Fermi-GBM Final Position.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file should be available by the time this FINAL notice is produced.  
COMMENTS:        This notice was generated completely by automated pipeline processing.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This is likely a Long GRB.

GCN NOTICE

 
TITLE:           GCN/SWIFT NOTICE 
NOTICE_DATE:     Tue 30 Jun 20 01:59:43 UT 
NOTICE_TYPE:     Swift-XRT Nack-Position 
TRIGGER_NUM:     980210,   Seg_Num: 0 
POINT_RA:         91.387d {+06h 05m 33s} (J2000) 
POINT_DEC:       -60.770d {-60d 46' 11"} (J2000) 
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30 
IMG_START_TIME:  6652.32 SOD {01:50:52.32} UT,   77.8 [sec] since BAT Trigger Time 
COUNTS:          2    Min_needed= 20 
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec] 
PH2_ITER:        1    Max_iter_allowed= 4 
ERROR_CODE:      1 
COMMENTS:        SWIFT-XRT Nack Position.   
COMMENTS:        No source found in the image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:01:03 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.386d {+06h 05m 33s} (J2000)
POINT_DEC:       -60.770d {-60d 46' 10"} (J2000)
POINT_ROLL:      7.501d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6656.97 SOD {01:50:56.97} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.311
N_STARS:         54
X_OFFSET:        339 [pixels]
Y_OFFSET:        637 [pixels]
X_MAX:           1298 [pixels]
Y_MAX:           1596 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    10
SL_URL:          sw00980210000msufc0082.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.18 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.28d {+14h 05m 08s}   -8.00d {-07d 59' 55"}
MOON_DIST:        96.84 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.69,-84.18 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:01:19 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.386d {+06h 05m 33s} (J2000)
POINT_DEC:       -60.770d {-60d 46' 10"} (J2000)
POINT_ROLL:      7.501d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6656.97 SOD {01:50:56.97} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.311
N_STARS:         54
X_OFFSET:        339 [pixels]
Y_OFFSET:        637 [pixels]
X_MAX:           1298 [pixels]
Y_MAX:           1596 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    10
SL_URL:          sw00980210000msufc0082.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.18 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.28d {+14h 05m 08s}   -8.00d {-07d 59' 59"}
MOON_DIST:        96.84 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.69,-84.18 [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:     Tue 30 Jun 20 02:00:39 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     980210,   Seg_Num: 0
GRB_RA:           91.380d {+06h 05m 31s} (J2000),
                  91.438d {+06h 05m 45s} (current),
                  91.237d {+06h 04m 57s} (1950)
GRB_DEC:         -60.789d {-60d 47' 20"} (J2000),
                 -60.792d {-60d 47' 30"} (current),
                 -60.783d {-60d 46' 57"} (1950)
GRB_DATE:        19030 TJD;   182 DOY;   20/06/30
GRB_TIME:        6574.47 SOD {01:49:34.47} UT
TRIGGER_INDEX:   146
GRB_PHI:          72.44 [deg]
GRB_THETA:        21.68 [deg]
DELTA_TIME:      32.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.26 [sigma]
IMAGE_SIGNIF:    9.07 [sigma]
LC_URL:          sw00980210000msb.lc
SUN_POSTN:        99.53d {+06h 38m 07s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.20 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.28d {+14h 05m 07s}   -8.00d {-07d 59' 50"}
MOON_DIST:        96.83 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.79,-28.98 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       96.67,-84.20 [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 = 183.70,-4.90 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:01:29 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.386d {+06h 05m 33s} (J2000)
POINT_DEC:       -60.770d {-60d 46' 10"} (J2000)
ROLL:            7.501d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6656.97 SOD {01:50:56.97} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     615174682
X_OFFSET:        658 [pixels]
Y_OFFSET:        956 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       818
Y_GRB_POS:       1116
BINNING_INDEX:   1
IM_URL:          sw00980210000msuni0108.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.18 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.29d {+14h 05m 09s}   -8.00d {-08d 00' 01"}
MOON_DIST:        96.84 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.69,-84.18 [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:     Tue 30 Jun 20 02:01:41 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.386d {+06h 05m 33s} (J2000)
POINT_DEC:       -60.770d {-60d 46' 10"} (J2000)
ROLL:            7.501d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6656.97 SOD {01:50:56.97} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     615174682
X_OFFSET:        658 [pixels]
Y_OFFSET:        956 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       818
Y_GRB_POS:       1116
BINNING_INDEX:   1
IM_URL:          sw00980210000msuni0108.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.18 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.29d {+14h 05m 09s}   -8.00d {-08d 00' 04"}
MOON_DIST:        96.84 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.69,-84.18 [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:     Tue 30 Jun 20 02:03:16 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
POINT_ROLL:      7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6869.05 SOD {01:54:29.05} UT,   294.6 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.198
N_STARS:         75
X_OFFSET:        99 [pixels]
Y_OFFSET:        397 [pixels]
X_MAX:           1538 [pixels]
Y_MAX:           1836 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00980210000msufc0294.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.30d {+14h 05m 13s}   -8.01d {-08d 00' 26"}
MOON_DIST:        96.84 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:03:39 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
POINT_ROLL:      7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6869.05 SOD {01:54:29.05} UT,   294.6 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.198
N_STARS:         75
X_OFFSET:        99 [pixels]
Y_OFFSET:        397 [pixels]
X_MAX:           1538 [pixels]
Y_MAX:           1836 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00980210000msufc0294.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.31d {+14h 05m 13s}   -8.01d {-08d 00' 31"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [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:     Tue 30 Jun 20 02:03:57 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
ROLL:            7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6869.05 SOD {01:54:29.05} UT,   294.6 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     615174894
X_OFFSET:        658 [pixels]
Y_OFFSET:        956 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       818
Y_GRB_POS:       1116
BINNING_INDEX:   1
IM_URL:          sw00980210000msuni0320.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.31d {+14h 05m 14s}   -8.01d {-08d 00' 36"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [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:     Tue 30 Jun 20 02:03:47 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
ROLL:            7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6869.05 SOD {01:54:29.05} UT,   294.6 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     615174894
X_OFFSET:        658 [pixels]
Y_OFFSET:        956 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       818
Y_GRB_POS:       1116
BINNING_INDEX:   1
IM_URL:          sw00980210000msuni0320.fits
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 48"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.31d {+14h 05m 14s}   -8.01d {-08d 00' 33"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [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:     Tue 30 Jun 20 02:09:25 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
POINT_ROLL:      7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  7440.11 SOD {02:04:00.11} UT,   865.6 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.529
N_STARS:         165
X_OFFSET:        99 [pixels]
Y_OFFSET:        397 [pixels]
X_MAX:           1538 [pixels]
Y_MAX:           1836 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00980210000msufc0865.fits
SUN_POSTN:        99.54d {+06h 38m 09s}  +23.15d {+23d 08' 47"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.36d {+14h 05m 26s}   -8.03d {-08d 01' 51"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:09:46 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
POINT_ROLL:      7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  7440.11 SOD {02:04:00.11} UT,   865.6 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.529
N_STARS:         165
X_OFFSET:        99 [pixels]
Y_OFFSET:        397 [pixels]
X_MAX:           1538 [pixels]
Y_MAX:           1836 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00980210000msufc0865.fits
SUN_POSTN:        99.54d {+06h 38m 09s}  +23.15d {+23d 08' 47"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.36d {+14h 05m 27s}   -8.03d {-08d 01' 56"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [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:     Tue 30 Jun 20 02:10:50 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
ROLL:            7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  7440.11 SOD {02:04:00.11} UT,   865.6 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     615175465
X_OFFSET:        658 [pixels]
Y_OFFSET:        956 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       818
Y_GRB_POS:       1116
BINNING_INDEX:   1
IM_URL:          sw00980210000msuni0891.fits
SUN_POSTN:        99.54d {+06h 38m 09s}  +23.15d {+23d 08' 46"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.37d {+14h 05m 29s}   -8.04d {-08d 02' 11"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [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:     Tue 30 Jun 20 02:10:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     980210,   Seg_Num: 0
POINT_RA:         91.384d {+06h 05m 32s} (J2000)
POINT_DEC:       -60.767d {-60d 46' 02"} (J2000)
ROLL:            7.502d
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  7440.11 SOD {02:04:00.11} UT,   865.6 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     615175465
X_OFFSET:        658 [pixels]
Y_OFFSET:        956 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       818
Y_GRB_POS:       1116
BINNING_INDEX:   1
IM_URL:          sw00980210000msuni0891.fits
SUN_POSTN:        99.54d {+06h 38m 09s}  +23.15d {+23d 08' 46"}
SUN_DIST:         84.17 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.37d {+14h 05m 29s}   -8.04d {-08d 02' 12"}
MOON_DIST:        96.85 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.77,-28.97 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       96.67,-84.17 [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 #28042
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA),
H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias),
D. Buckley (South African Astronomical Observatory),
O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University)
MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB200630.08 (trigger No 615174580,05h 46m 14.40s , -62d 57m 00.0s, R=7.5) errorbox 250 sec after notice time and 277 sec after trigger time at 2020-06-30 01:54:13 UT, with upper limit up to 19.4 mag. The observations began at zenith distance = 69 deg. The sun altitude is -47.0 deg.
The galactic latitude b = -31 deg., longitude l = 272 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1392855
We obtain a following upper limits.
```
Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     308 | 2020-06-30 01:54:13 |         MASTER-SAAO | (04h 41m 40.88s , -59d 59m 48.7s) |   C |    60 | 19.4 |        
     308 | 2020-06-30 01:54:13 |         MASTER-SAAO | (04h 55m 19.51s , -59d 58m 49.9s) |   C |    60 | 19.1 |        
```
Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.
GCN Circular #28043
K. L. Page (U Leicester), S. D. Barthelmy (GSFC), J.D. Gropp (PSU), J. A. Kennea (PSU), A. Y. Lien (GSFC/UMBC), F. E. Marshall (NASA/GSFC), M. J. Moss (GWU) and D. M. Palmer (LANL) report on behalf of the Neil Gehrels Swift Observatory Team:
At 01:49:34 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 200630A (trigger=980210). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 91.380, -60.789 which is
```
   RA(J2000) = 06h 05m 31s
   Dec(J2000) = -60d 47' 20"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex structure with a duration of about 10 sec. The peak count rate was ~1600 counts/sec (15-350 keV), at ~0 sec after the trigger.
The XRT began observing the field at 01:50:52.3 UT, 77.8 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source with an enhanced position: RA, Dec 91.3308, -60.7524 which is equivalent to:
```
   RA(J2000)  = 06h 05m 19.38s
   Dec(J2000) = -60d 45' 08.6"
```
with an uncertainty of 2.6 arcseconds (radius, 90% containment). This location is 157 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 https://www.swift.ac.uk/sper. We cannot determine whether the source is fading at the present time.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 4.33 x 10^20 cm^-2 (Willingale et al. 2013).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 82 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 none of the XRT error circle. 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 0.04.
This burst is consistent with Fermi/GBM trigger number 615174580.
Burst Advocate for this burst is K. L. Page (klp5 AT leicester.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/)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:05:00 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     980210,   Seg_Num: 0
GRB_RA:           91.3308d {+06h 05m 19.39s} (J2000),
                  91.3897d {+06h 05m 33.52s} (current),
                  91.1873d {+06h 04m 44.94s} (1950)
GRB_DEC:         -60.7524d {-60d 45' 08.6"} (J2000),
                 -60.7551d {-60d 45' 18.3"} (current),
                 -60.7463d {-60d 44' 46.6"} (1950)
GRB_ERROR:       2.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6660.00 SOD {01:51:00.00} UT,   85.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 47"}
SUN_DIST:         84.16 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.32d {+14h 05m 16s}   -8.01d {-08d 00' 50"}
MOON_DIST:        96.88 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.75,-29.00 [deg] galactic lon,lat of the burst
ECL_COORDS:       96.41,-84.16 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 1.1% < P(seren) < 2.8%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Jun 20 02:04:20 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     980210,   Seg_Num: 0
GRB_RA:           91.3303d {+06h 05m 19.27s} (J2000),
                  91.3892d {+06h 05m 33.40s} (current),
                  91.1868d {+06h 04m 44.82s} (1950)
GRB_DEC:         -60.7523d {-60d 45' 08.2"} (J2000),
                 -60.7550d {-60d 45' 18.0"} (current),
                 -60.7462d {-60d 44' 46.2"} (1950)
GRB_ERROR:       4.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19030 TJD;   182 DOY;   20/06/30
IMG_START_TIME:  6660.00 SOD {01:51:00.00} UT,   85.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        99.53d {+06h 38m 08s}  +23.15d {+23d 08' 47"}
SUN_DIST:         84.16 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      211.31d {+14h 05m 15s}   -8.01d {-08d 00' 41"}
MOON_DIST:        96.88 [deg]
MOON_ILLUM:      70 [%]
GAL_COORDS:      269.75,-29.00 [deg] galactic lon,lat of the burst
ECL_COORDS:       96.40,-84.16 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 1.1% < P(seren) < 2.8%.

GCN Circular #28044
A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team.
Using 1889 s of XRT Photon Counting mode data and 3 UVOT images for GRB 200630A, 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 = 91.33040, -60.75279 which is equivalent to:
```
RA (J2000): 06h 05m 19.30s
Dec (J2000): -60d 45' 10.1"
```
with an uncertainty of 2.0 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 #28046
R. Hamburg (UAH) and C. Meegan (UAH) report on behalf of the Fermi GBM Team:
"At 01:49:35.08 UT on 30 June 2020, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 200630A (trigger 615174580 / 200630076) which was also detected by the Swift/BAT (Page et al. 2020, GCN 28043) and the Swift/XRT (Beardmore et al. 2020, GCN 28044). The Fermi GBM Final Position is consistent with the Swift position.
The angle from the Fermi LAT boresight at the GBM trigger time is 42 degrees.
The GBM light curve shows one main peak with a duration (T90) of about 7 s (50-300 keV). The time-averaged spectrum from T0-1.5 s to T0+3.56 s is best fit by a single power law function with index of -1.51 +/- 0.05.
The event fluence (10-1000 keV) in this time interval is (1.41 +/- 0.12)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0-0.19 s in the 10-1000 keV band is 2.9 +/- 0.2 ph/s/cm^2.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html
For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"
GCN Circular #28049
A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), J.P. Osborne (U. Leicester), M.G. Bernardini (INAF-OAB), E. Ambrosi (INAF-IASFPA) , M. Capalbi (INAF-IASFPA), D.N. Burrows (PSU), J. D. Gropp (PSU), J.A. Kennea (PSU) and K.L. Page report on behalf of the Swift-XRT team:
We have analysed 2.9 ks of XRT data for GRB 200630A (Page et al. GCN Circ. 28043), from 86 s to 7.0 ks after the BAT trigger. The data are entirely in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Beardmore et al. (GCN Circ. 28044).
The light curve can be modelled with a power-law decay with a decay index of alpha=0.66 (+0.27, -0.20).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.7 (+/-0.5). The best-fitting absorption column is 3.7 (+3.4, -2.3) x 10^21 cm^-2, in excess of the Galactic value of 4.3 x 10^20 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.6 x 10^-11 (6.1 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     3.7 (+3.4, -2.3) x 10^21 cm^-2
Galactic foreground: 4.3 x 10^20 cm^-2
Excess significance: 2.3 sigma
Photon index:	     1.7 (+/-0.5)
```
If the light curve continues to decay with a power-law decay index of 0.66, the count rate at T+24 hours will be 1.8 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 8.2 x 10^-14 (1.1 x 10^-13) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00980210.
This circular is an official product of the Swift-XRT team.
GCN Circular #28050
M. H. Siegel (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 200630A 83 s after the BAT trigger (Page et al., GCN Circ. 28043). No optical afterglow consistent with the XRT position (Page et al. GCN Circ. 28043) 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            83          233          147         >19.7
u_FC               295          545          246         >19.8
white               83         1189          353         >20.4
v                  624         1239           78         >18.9
b                  550         1164           58         >19.6
u                  295         5310          433         >20.1
w1                 674         5154          253         >20.1
m2                 822         4949          232         >20.5
w2                 600         1214           78         >20.0
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.04 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #28051
D. M. Palmer (LANL), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), H. A. Krimm (NSF), S. Laha (GSFC/UMBC), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), K. L. Page (U Leicester), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-61 to T+242 sec from the recent telemetry downlink, we report further analysis of BAT GRB 200630A (trigger #980210) (Page et al., GCN Circ. 28043). The BAT ground-calculated position is RA, Dec = 91.389, -60.779 deg which is
```
   RA(J2000)  =  06h 05m 33.3s
   Dec(J2000) = -60d 46' 44.8"
```
with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 70%.
The mask-weighted light curve shows a single-pulse structure that starts and peaks at ~T0, and ends at~T+17 s. T90 (15-350 keV) is 14.83 +- 3.63 sec (estimated error including systematics).
The time-averaged spectrum from T-0.51 to T+16.64 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.64 +- 0.24. The fluence in the 15-150 keV band is 4.7 +- 0.7 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+0.06 sec in the 15-150 keV band is 1.4 +- 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/980210/BA/

Back to JG's homepage

Jochen Greiner, last update: 01-Jul-2020 [Disclaimer]