Gamma-ray Burst 201029A

(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:     Thu 29 Oct 20 20:21:05 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1003002,   Seg_Num: 0
GRB_RA:          229.601d {+15h 18m 24s} (J2000),
                 229.781d {+15h 19m 07s} (current),
                 229.169d {+15h 16m 40s} (1950)
GRB_DEC:         +44.464d {+44d 27' 50"} (J2000),
                 +44.389d {+44d 23' 20"} (current),
                 +44.645d {+44d 38' 42"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=3749 [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:        19151 TJD;   303 DOY;   20/10/29
GRB_TIME:        73190.10 SOD {20:19:50.10} UT
GRB_PHI:         124.75 [deg]
GRB_THETA:        10.32 [deg]
SOLN_STATUS:     0x20000013
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    15.03 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +4  +0  +0 -50  +0 
SUN_POSTN:       214.54d {+14h 18m 09s}  -13.81d {-13d 48' 28"}
SUN_DIST:         59.83 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.09d {+01h 12m 21s}   +2.71d {+02d 42' 52"}
MOON_DIST:       125.05 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.93 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      205.44, 59.19 [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 = 204.65,9.02 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=625695596).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:20:16 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      44
TRIGGER_NUM:     625695596
GRB_RA:          222.200d {+14h 48m 48s} (J2000),
                 222.368d {+14h 49m 28s} (current),
                 221.796d {+14h 47m 11s} (1950)
GRB_DEC:         +51.633d {+51d 37' 60"} (J2000),
                 +51.548d {+51d 32' 51"} (current),
                 +51.840d {+51d 50' 25"} (1950)
GRB_ERROR:       22.18 [deg radius, statistical plus systematic]
GRB_INTEN:       54 [cnts/sec]
DATA_SIGNIF:     5.10 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        19151 TJD;   303 DOY;   20/10/29
GRB_TIME:        73191.61 SOD {20:19:51.61} UT
GRB_PHI:          74.00 [deg]
GRB_THETA:        55.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      0.49
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      67%  GRB
2nd_MOST_LIKELY:  28%  Distant Particles
DETECTORS:       1,1,0, 0,0,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       214.54d {+14h 18m 09s}  -13.81d {-13d 48' 28"}
SUN_DIST:         65.71 [deg]   Sun_angle= -0.5 [hr] (East of Sun)
MOON_POSTN:       18.08d {+01h 12m 20s}   +2.71d {+02d 42' 42"}
MOON_DIST:       121.95 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       88.94, 57.04 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      188.73, 62.28 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201029847/quicklook/glg_lc_medres34_bn201029847.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 161.73,-22.50 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:20:34 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      57
TRIGGER_NUM:     625695596
GRB_RA:          222.370d {+14h 49m 29s} (J2000),
                 222.547d {+14h 50m 11s} (current),
                 221.946d {+14h 47m 47s} (1950)
GRB_DEC:         +49.100d {+49d 06' 00"} (J2000),
                 +49.014d {+49d 00' 52"} (current),
                 +49.306d {+49d 18' 23"} (1950)
GRB_ERROR:       10.69 [deg radius, statistical only]
DATA_SIGNIF:     7.10 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        19151 TJD;   303 DOY;   20/10/29
GRB_TIME:        73191.61 SOD {20:19:51.61} UT
GRB_PHI:          71.00 [deg]
GRB_THETA:        55.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4173 (Gnd S/W Version number)
SUN_POSTN:       214.54d {+14h 18m 09s}  -13.81d {-13d 48' 28"}
SUN_DIST:         63.22 [deg]   Sun_angle= -0.5 [hr] (East of Sun)
MOON_POSTN:       18.08d {+01h 12m 20s}   +2.71d {+02d 42' 45"}
MOON_DIST:       124.10 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       84.94, 58.40 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      192.15, 60.34 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201029847/quicklook/glg_lc_medres34_bn201029847.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_625695596.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:     Thu 29 Oct 20 20:21:20 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      0
TRIGGER_NUM:     625695596
GRB_RA:          217.790d {+14h 31m 10s} (J2000),
                 217.975d {+14h 31m 54s} (current),
                 217.346d {+14h 29m 23s} (1950)
GRB_DEC:         +49.070d {+49d 04' 12"} (J2000),
                 +48.978d {+48d 58' 43"} (current),
                 +49.291d {+49d 17' 26"} (1950)
GRB_ERROR:       5.90 [deg radius, statistical only]
DATA_SIGNIF:     10.60 [sigma]
DATA_INTERVAL:   11.264 [sec]
GRB_DATE:        19151 TJD;   303 DOY;   20/10/29
GRB_TIME:        73191.61 SOD {20:19:51.61} UT
GRB_PHI:          71.00 [deg]
GRB_THETA:        52.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:       214.54d {+14h 18m 09s}  -13.81d {-13d 48' 28"}
SUN_DIST:         62.86 [deg]   Sun_angle= -0.2 [hr] (East of Sun)
MOON_POSTN:       18.09d {+01h 12m 22s}   +2.72d {+02d 42' 55"}
MOON_DIST:       125.51 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       88.41, 60.84 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      187.46, 58.52 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201029847/quicklook/glg_lc_medres34_bn201029847.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_625695596.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This is likely a Long GRB.  
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.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(1.0<100sec) coincident with the SWIFT_BAT event (trignum=1003002).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:21:45 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      1
TRIGGER_NUM:     625695596
GRB_RA:          222.480d {+14h 49m 55s} (J2000),
                 222.659d {+14h 50m 38s} (current),
                 222.050d {+14h 48m 12s} (1950)
GRB_DEC:         +48.220d {+48d 13' 12"} (J2000),
                 +48.135d {+48d 08' 05"} (current),
                 +48.426d {+48d 25' 34"} (1950)
GRB_ERROR:       5.71 [deg radius, statistical only]
DATA_SIGNIF:     12.60 [sigma]
DATA_INTERVAL:   17.408 [sec]
GRB_DATE:        19151 TJD;   303 DOY;   20/10/29
GRB_TIME:        73191.61 SOD {20:19:51.61} UT
GRB_PHI:          70.00 [deg]
GRB_THETA:        55.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:       214.54d {+14h 18m 09s}  -13.81d {-13d 48' 29"}
SUN_DIST:         62.36 [deg]   Sun_angle= -0.5 [hr] (East of Sun)
MOON_POSTN:       18.09d {+01h 12m 22s}   +2.72d {+02d 42' 60"}
MOON_DIST:       124.82 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       83.44, 58.82 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      193.30, 59.67 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201029847/quicklook/glg_lc_medres34_bn201029847.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_625695596.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        This is likely a Long GRB.  
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.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(1.0<100sec) coincident with the SWIFT_BAT event (trignum=1003002).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:30:08 UT
NOTICE_TYPE:     Fermi-GBM Final Position
RECORD_NUM:      0
TRIGGER_NUM:     625695596
GRB_RA:          217.920d {+14h 31m 41s} (J2000),
                 218.113d {+14h 32m 27s} (current),
                 217.456d {+14h 29m 49s} (1950)
GRB_DEC:         +45.900d {+45d 53' 60"} (J2000),
                 +45.809d {+45d 48' 31"} (current),
                 +46.120d {+46d 07' 13"} (1950)
GRB_ERROR:       6.33 [deg radius, statistical only]
GRB_DATE:        19151 TJD;   303 DOY;   20/10/29
GRB_TIME:        73191.61 SOD {20:19:51.61} UT
GRB_PHI:          67.00 [deg]
GRB_THETA:        52.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:       214.54d {+14h 18m 11s}  -13.81d {-13d 48' 36"}
SUN_DIST:         59.71 [deg]   Sun_angle= -0.2 [hr] (East of Sun)
MOON_POSTN:       18.16d {+01h 12m 37s}   +2.75d {+02d 44' 44"}
MOON_DIST:       128.32 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       82.96, 62.69 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      191.00, 56.00 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201029847/quicklook/glg_lc_medres34_bn201029847.gif
LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201029847/quicklook/glg_locplot_all_bn201029847.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.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(1.0<100sec) coincident with the SWIFT_BAT event (trignum=1003002).

GCN NOTICE

 
TITLE:           GCN/SWIFT NOTICE 
NOTICE_DATE:     Thu 29 Oct 20 20:22:59 UT 
NOTICE_TYPE:     Swift-XRT Position 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
GRB_RA:          229.5832d {+15h 18m 19.96s} (J2000), 
                 229.7634d {+15h 19m 03.22s} (current), 
                 229.1507d {+15h 16m 36.16s} (1950) 
GRB_DEC:         +44.4596d {+44d 27' 34.5"} (J2000), 
                 +44.3846d {+44d 23' 04.4"} (current), 
                 +44.6409d {+44d 38' 27.2"} (1950) 
GRB_ERROR:       5.9 [arcsec radius, statistical plus systematic, 90% containment] 
GRB_INTEN:       7.42e-10 [erg/cm2/sec] 
GRB_SIGNIF:      5.38 [sigma] 
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29 
IMG_START_TIME:  73312.39 SOD {20:21:52.39} UT,   122.3 [sec] since BAT Trigger Time 
TAM[0-3]:        327.65 237.17 261.68 243.43 
AMPLIFIER:       2 
WAVEFORM:        134 
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 30"} 
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.10d {+01h 12m 24s}   +2.72d {+02d 43' 15"} 
MOON_DIST:       125.06 [deg] 
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.95 [deg] galactic lon,lat of the burst 
ECL_COORDS:      205.42, 59.18 [deg] ecliptic lon,lat of the burst 
COMMENTS:        SWIFT-XRT Coordinates.   
COMMENTS:        The XRT position is 0.80 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:23:09 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     1003002,   Seg_Num: 0
GRB_RA:          229.5832d {+15h 18m 19.9s} (J2000),
                 229.7634d {+15h 19m 03.2s} (current),
                 229.1507d {+15h 16m 36.1s} (1950)
GRB_DEC:         +44.4596d {+44d 27' 34.5"} (J2000),
                 +44.3846d {+44d 23' 04.4"} (current),
                 +44.6409d {+44d 38' 27.2"} (1950)
GRB_ERROR:       5.8 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       29 [cnts]
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  73312.39 SOD {20:21:52.39} UT,   122.3 [sec] since BAT Trigger Time
CENTROID_X:      302.66,  raw= 303  [pixels]
CENTROID_Y:      281.44,  raw= 281  [pixels]
ROLL:            196.96 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -39.27
GRB_POS_XRT_Z:   -11.15
IMAGE_URL:       sw01003002000msxps_rw.img
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 30"}
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.10d {+01h 12m 25s}   +2.72d {+02d 43' 17"}
MOON_DIST:       125.06 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.95 [deg] galactic lon,lat of the burst
ECL_COORDS:      205.42, 59.18 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

 
TITLE:           GCN/SWIFT NOTICE 
NOTICE_DATE:     Thu 29 Oct 20 20:23:13 UT 
NOTICE_TYPE:     Swift-XRT Processed Image 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
GRB_RA:          229.5832d {+15h 18m 19.9s} (J2000), 
                 229.7634d {+15h 19m 03.2s} (current), 
                 229.1507d {+15h 16m 36.1s} (1950) 
GRB_DEC:         +44.4596d {+44d 27' 34.5"} (J2000), 
                 +44.3846d {+44d 23' 04.4"} (current), 
                 +44.6409d {+44d 38' 27.2"} (1950) 
GRB_ERROR:       5.8 [arcsec, radius, statistical plus systematic] 
GRB_INTEN:       29 [cnts] 
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29 
IMG_START_TIME:  73312.39 SOD {20:21:52.39} UT,   122.3 [sec] since BAT Trigger Time 
CENTROID_X:      302.66,  raw= 303  [pixels] 
CENTROID_Y:      281.44,  raw= 281  [pixels] 
ROLL:            196.96 [deg] 
GAIN:            1 
MODE:            3, Long Image mode
WAVEFORM:        134 
EXPO_TIME:       2.50 [sec] 
GRB_POS_XRT_Y:   -39.27 
GRB_POS_XRT_Z:   -11.15 
IMAGE_URL:       sw01003002000msxps_rw.img 
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 30"} 
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.10d {+01h 12m 25s}   +2.72d {+02d 43' 18"} 
MOON_DIST:       125.06 [deg] 
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.95 [deg] galactic lon,lat of the burst 
ECL_COORDS:      205.42, 59.18 [deg] ecliptic lon,lat of the burst 
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

 
TITLE:           GCN/SWIFT NOTICE 
NOTICE_DATE:     Thu 29 Oct 20 20:23:55 UT 
NOTICE_TYPE:     Swift-BAT GRB Lightcurve 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
GRB_RA:          229.601d {+15h 18m 24s} (J2000), 
                 229.781d {+15h 19m 07s} (current), 
                 229.169d {+15h 16m 40s} (1950) 
GRB_DEC:         +44.464d {+44d 27' 50"} (J2000), 
                 +44.389d {+44d 23' 20"} (current), 
                 +44.645d {+44d 38' 42"} (1950) 
GRB_DATE:        19151 TJD;   303 DOY;   20/10/29 
GRB_TIME:        73190.10 SOD {20:19:50.10} UT 
TRIGGER_INDEX:   20000 
GRB_PHI:         124.75 [deg] 
GRB_THETA:        10.32 [deg] 
DELTA_TIME:      0.00 [sec] 
TRIGGER_DUR:     64.000 [sec]  
SOLN_STATUS:     0x13 
RATE_SIGNIF:     0.00 [sigma] 
IMAGE_SIGNIF:    15.03 [sigma] 
LC_URL:          sw01003002000msb.lc 
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 31"} 
SUN_DIST:         59.83 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.11d {+01h 12m 26s}   +2.72d {+02d 43' 27"} 
MOON_DIST:       125.05 [deg]
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.93 [deg] galactic lon,lat of the burst (or transient) 
ECL_COORDS:      205.44, 59.19 [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 = 204.65,9.02 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:24:56 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     1003002,   Seg_Num: 0
POINT_RA:        229.599d {+15h 18m 24s} (J2000)
POINT_DEC:       +44.459d {+44d 27' 34"} (J2000)
POINT_ROLL:      196.958d
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  73321.12 SOD {20:22:01.12} UT,   131.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.811
N_STARS:         20
X_OFFSET:        440 [pixels]
Y_OFFSET:        576 [pixels]
X_MAX:           1399 [pixels]
Y_MAX:           1535 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw01003002000msufc0131.fits
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 31"}
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.12d {+01h 12m 28s}   +2.73d {+02d 43' 39"}
MOON_DIST:       125.05 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      205.44, 59.18 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

 
TITLE:           GCN/SWIFT NOTICE 
NOTICE_DATE:     Thu 29 Oct 20 20:25:09 UT 
NOTICE_TYPE:     Swift-UVOT Processed Source List 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
POINT_RA:        229.599d {+15h 18m 24s} (J2000) 
POINT_DEC:       +44.459d {+44d 27' 34"} (J2000) 
POINT_ROLL:      196.958d 
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29 
IMG_START_TIME:  73321.12 SOD {20:22:01.12} UT,   131.0 [sec] since BAT Trigger Time 
FILTER:          10, White 
BKG_MEAN:        2.811 
N_STARS:         20 
X_OFFSET:        440 [pixels] 
Y_OFFSET:        576 [pixels] 
X_MAX:           1399 [pixels] 
Y_MAX:           1535 [pixels] 
DET_THRESH:      14 
PHOTO_THRESH:    7 
SL_URL:          sw01003002000msufc0131.fits 
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 32"} 
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.12d {+01h 12m 28s}   +2.73d {+02d 43' 42"} 
MOON_DIST:       125.05 [deg] 
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction 
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 20:26:18 UT 
NOTICE_TYPE:     Swift-UVOT Image 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
POINT_RA:        229.599d {+15h 18m 24s} (J2000) 
POINT_DEC:       +44.459d {+44d 27' 34"} (J2000) 
ROLL:            196.958d 
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29 
IMG_START_TIME:  73321.12 SOD {20:22:01.12} UT,   131.0 [sec] since BAT Trigger Time 
FILTER:          10, White 
EXPOSURE_ID:     625695747 
X_OFFSET:        845 [pixels] 
Y_OFFSET:        934 [pixels] 
WIDTH:           160 [pixels] 
HEIGHT:          160 [pixels] 
X_GRB_POS:       1005 
Y_GRB_POS:       1094 
BINNING_INDEX:   1 
IM_URL:          sw01003002000msuni0157.fits 
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 33"} 
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.13d {+01h 12m 30s}   +2.73d {+02d 43' 56"} 
MOON_DIST:       125.05 [deg] 
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction 
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 20:26:31 UT 
NOTICE_TYPE:     Swift-UVOT Processed Image 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
POINT_RA:        229.599d {+15h 18m 24s} (J2000) 
POINT_DEC:       +44.459d {+44d 27' 34"} (J2000) 
ROLL:            196.958d 
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29 
IMG_START_TIME:  73321.12 SOD {20:22:01.12} UT,   131.0 [sec] since BAT Trigger Time 
FILTER:          10, White 
EXPOSURE_ID:     625695747 
X_OFFSET:        845 [pixels] 
Y_OFFSET:        934 [pixels] 
WIDTH:           160 [pixels] 
HEIGHT:          160 [pixels] 
X_GRB_POS:       1005 
Y_GRB_POS:       1094 
BINNING_INDEX:   1 
IM_URL:          sw01003002000msuni0157.fits 
SUN_POSTN:       214.54d {+14h 18m 10s}  -13.81d {-13d 48' 33"} 
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.13d {+01h 12m 31s}   +2.73d {+02d 43' 59"} 
MOON_DIST:       125.05 [deg] 
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction 
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 20:31:04 UT 
NOTICE_TYPE:     Swift-UVOT Source List 
TRIGGER_NUM:     1003002,   Seg_Num: 0 
POINT_RA:        229.598d {+15h 18m 24s} (J2000) 
POINT_DEC:       +44.459d {+44d 27' 31"} (J2000) 
POINT_ROLL:      196.956d 
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29 
IMG_START_TIME:  73479.14 SOD {20:24:39.14} UT,   289.0 [sec] since BAT Trigger Time 
FILTER:          7, U 
BKG_MEAN:        0.712 
N_STARS:         15 
X_OFFSET:        525 [pixels] 
Y_OFFSET:        614 [pixels] 
X_MAX:           1484 [pixels] 
Y_MAX:           1573 [pixels] 
DET_THRESH:      7 
PHOTO_THRESH:    3 
SL_URL:          sw01003002000msufc0289.fits 
SUN_POSTN:       214.55d {+14h 18m 11s}  -13.81d {-13d 48' 36"} 
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun) 
MOON_POSTN:       18.16d {+01h 12m 39s}   +2.75d {+02d 44' 55"} 
MOON_DIST:       125.05 [deg] 
MOON_ILLUM:      97 [%] 
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction 
ECL_COORDS:      205.44, 59.18 [deg] ecliptic lon,lat of the pointing direction 
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 29 Oct 20 20:32:23 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     1003002,   Seg_Num: 0
POINT_RA:        229.598d {+15h 18m 24s} (J2000)
POINT_DEC:       +44.459d {+44d 27' 31"} (J2000)
ROLL:            196.956d
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  73479.14 SOD {20:24:39.14} UT,   289.0 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     625695905
X_OFFSET:        845 [pixels]
Y_OFFSET:        934 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1005
Y_GRB_POS:       1094
BINNING_INDEX:   1
IM_URL:          sw01003002000msuni0315.fits
SUN_POSTN:       214.55d {+14h 18m 11s}  -13.81d {-13d 48' 38"}
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.17d {+01h 12m 41s}   +2.75d {+02d 45' 11"}
MOON_DIST:       125.06 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 20:32:37 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     1003002,   Seg_Num: 0
POINT_RA:        229.598d {+15h 18m 24s} (J2000)
POINT_DEC:       +44.459d {+44d 27' 31"} (J2000)
ROLL:            196.956d
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  73479.14 SOD {20:24:39.14} UT,   289.0 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     625695905
X_OFFSET:        845 [pixels]
Y_OFFSET:        934 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1005
Y_GRB_POS:       1094
BINNING_INDEX:   1
IM_URL:          sw01003002000msuni0315.fits
SUN_POSTN:       214.55d {+14h 18m 11s}  -13.81d {-13d 48' 38"}
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.17d {+01h 12m 42s}   +2.75d {+02d 45' 14"}
MOON_DIST:       125.06 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 20:50:18 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     1003002,   Seg_Num: 0
POINT_RA:        229.598d {+15h 18m 23s} (J2000)
POINT_DEC:       +44.459d {+44d 27' 31"} (J2000)
POINT_ROLL:      196.956d
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  74057.51 SOD {20:34:17.51} UT,   867.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.973
N_STARS:         45
X_OFFSET:        285 [pixels]
Y_OFFSET:        374 [pixels]
X_MAX:           1724 [pixels]
Y_MAX:           1813 [pixels]
DET_THRESH:      12
PHOTO_THRESH:    6
SL_URL:          sw01003002000msufc0867.fits
SUN_POSTN:       214.56d {+14h 18m 14s}  -13.81d {-13d 48' 52"}
SUN_DIST:         59.83 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.31d {+01h 13m 14s}   +2.81d {+02d 48' 53"}
MOON_DIST:       125.06 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 20:51:35 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     1003002,   Seg_Num: 0
POINT_RA:        229.598d {+15h 18m 23s} (J2000)
POINT_DEC:       +44.459d {+44d 27' 31"} (J2000)
ROLL:            196.956d
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  74057.51 SOD {20:34:17.51} UT,   867.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     625696483
X_OFFSET:        844 [pixels]
Y_OFFSET:        933 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1004
Y_GRB_POS:       1093
BINNING_INDEX:   1
IM_URL:          sw01003002000msuni0893.fits
SUN_POSTN:       214.56d {+14h 18m 14s}  -13.82d {-13d 48' 53"}
SUN_DIST:         59.83 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.32d {+01h 13m 16s}   +2.82d {+02d 49' 09"}
MOON_DIST:       125.06 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.27, 55.94 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      205.44, 59.18 [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:     Thu 29 Oct 20 21:07:19 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1003002,   Seg_Num: 0
GRB_RA:          229.5819d {+15h 18m 19.65s} (J2000),
                 229.7621d {+15h 19m 02.91s} (current),
                 229.1494d {+15h 16m 35.84s} (1950)
GRB_DEC:         +44.4598d {+44d 27' 35.2"} (J2000),
                 +44.3848d {+44d 23' 05.1"} (current),
                 +44.6411d {+44d 38' 27.9"} (1950)
GRB_ERROR:       3.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19151 TJD;   303 DOY;   20/10/29
IMG_START_TIME:  73351.00 SOD {20:22:31.00} UT,   160.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       214.57d {+14h 18m 17s}  -13.82d {-13d 49' 06"}
SUN_DIST:         59.82 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:       18.43d {+01h 13m 44s}   +2.87d {+02d 52' 23"}
MOON_DIST:       125.07 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       73.28, 55.95 [deg] galactic lon,lat of the burst
ECL_COORDS:      205.42, 59.18 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.

GCN Circular #28803
S. Dichiara (NASA/GSFC/UMCP), J. A. Kennea (PSU), N. J. Klingler (PSU), S. Laha (GSFC/UMBC/CRESST), F. E. Marshall (NASA/GSFC), M. J. Moss (GWU), K. L. Page (U Leicester), D. M. Palmer (LANL), A. Tohuvavohu (U Toronto) and E. Troja (NASA/GSFC/UMCP) report on behalf of the Neil Gehrels Swift Observatory Team:
At 20:19:50 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 201029A (trigger=1003002). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 229.601, +44.464 which is
```
   RA(J2000) = 15h 18m 24s
   Dec(J2000) = +44d 27' 50"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single complex peak structure with a duration of about 40 sec. The peak count rate was ~1800 counts/sec (15-350 keV), at ~5 sec after the trigger.
The XRT began observing the field at 20:21:52.3 UT, 122.3 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source located at RA, Dec 229.58280, 44.45975 which is equivalent to:
```
   RA(J2000)  = 15h 18m 19.87s
   Dec(J2000) = +44d 27' 35.1"
```
with an uncertainty of 3.5 arcseconds (radius, 90% containment). This location is 49 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. No spectrum from the promptly downlinked event data is yet available to determine the column density.
The initial flux in the 2.5 s image was 7.42e-10 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 131 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 0.02.
Burst Advocate for this burst is S. Dichiara (dichiara AT umd.edu). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/)
GCN Circular #28804
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),
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-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB201029.85 (trigger No 625695596,14h 48m 48.00s , +51d 37m 58.8s, R=22.18) errorbox 109 sec after trigger time at 2020-10-29 20:21:41 UT, with upper limit up to 16.6 mag. The observations began at zenith distance = 81 deg. The sun altitude is -27.2 deg.
The galactic latitude b = 57 deg., longitude l = 88 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1471861
We obtain a following upper limits.
```
Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     119 | 2020-10-29 20:21:41 |          MASTER-IAC | (14h 30m 38.24s , +49d 07m 10.3s) |   C |    20 | 14.9 |        
     164 | 2020-10-29 20:22:20 |          MASTER-IAC | (14h 30m 33.21s , +49d 06m 08.4s) |   C |    30 | 15.1 |        
     234 | 2020-10-29 20:23:35 |          MASTER-IAC | (15h 17m 43.60s , +44d 30m 26.7s) |   C |    20 | 15.9 |        
     269 | 2020-10-29 20:23:35 |          MASTER-IAC | (15h 17m 43.60s , +44d 30m 26.6s) |   C |    90 | 16.6 |  Coadd 
     267 | 2020-10-29 20:24:03 |          MASTER-IAC | (15h 17m 43.56s , +44d 29m 03.5s) |   C |    30 | 16.0 |        
     318 | 2020-10-29 20:24:49 |          MASTER-IAC | (15h 17m 46.49s , +44d 30m 11.2s) |   C |    40 | 16.0 |        
     374 | 2020-10-29 20:25:40 |          MASTER-IAC | (15h 17m 40.74s , +44d 29m 33.1s) |   C |    50 | 16.3 |        
     442 | 2020-10-29 20:26:44 |          MASTER-IAC | (15h 17m 40.34s , +44d 30m 33.0s) |   C |    60 | 16.4 |        
```
Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.
GCN Circular #28805
Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ),
Sergey Karpov, Martin Masek, Petr Janecek, Jakub Jurysek, Jan Ebr, Ronan Cunniffe, Petr Travnicek and Michael Prouza (Institute of Physics, Prague, CZ)
report:
The 25cm robotic telescope FRAM-ORM at La Palma (Spain) reacted robotically to the Swift alert of GRB201029A (trigger=1003002; Dichiara et al., GCNC 28803), obtaining a series of 20s unfiltered images starting at 20:21:23.0UT, i.e. 93s post trigger.
We do not detect any new source in the XRT error box neither in single images (3-sigma limit R>~15.7) nor in a combined 20x20s frame (mean exp time 276s post trigger, 3-sigma limit R>~18.15) similarly to Lipunov et al. (GCNC 28804).
GCN Circular #28806
A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team.
Using 764 s of XRT Photon Counting mode data and 1 UVOT images for GRB 201029A, 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 = 229.58157, +44.45927 which is equivalent to:
```
RA (J2000): 15h 18m 19.58s
Dec (J2000): +44d 27' 33.4"
```
with an uncertainty of 1.7 arcsec (radius, 90% confidence).
This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177).
This circular was automatically generated, and is an official product of the Swift-XRT team.
GCN Circular #28807
Y.-D. Hu, E. Fernandez-Garcia, A. J. Castro-Tirado (IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco, A. Reina (Univ. de Malaga) and F. Rendon (IAA-CSIC and INTA-CEDEA) on behalf of a larger collaboration, report:
Following the Swift trigger of GRB 201029A (Dichiara et al., GCNC 28803), the 0.3m BOOTES-1B robotic telescope in Mazagon (Huelva), southern Spain, automatically responded to this burst at 8 degrees above the horizon. Series images were taken started 20:21:26UT (~96 s after trigger). In the co-added of following images, no source is detected within the enhanced XRT position (Beardmore et al., GCNC 28806) which down to 17.7 mag (clear filter), which consistent with the non-detections reported by UVOT (Dichiara et al., GCNC 2828803) and FRAM-ORM (Jelinek et al., GCNC 28805).
We thank the staff at INTA-CEDEA for their excellent support.
GCN Circular #28808
M. Perri (ASDC), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), B. Sbarufatti (PSU), D.N. Burrows (PSU), J. D. Gropp (PSU), K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester) and S. Dichiara (NASA/GSFC/UMCP) reporton behalf of the Swift-XRT team:
We have analysed 6.2 ks of XRT data for GRB 201029A (Dichiara et al. GCN Circ. 28803), from 128 s to 34.7 ks after the BAT trigger. The data comprise 764 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Beardmore et al. (GCN Circ. 28806).
The light curve is dominated by flares. The first flare covers ~T0+200-650 s. The second flare started at T0+1100s and was still ongoing when the GRB entered Earth eclipse at T0+1850 s. The third flare began at T0+11.5 ks, was still ongoing at T0+23 ks and finished at some point before T0+30.5 ks, although large observing gaps in this window prevent acccurate measurements of the flare and it is possible that there are multiple flares at this time rather than a single long-lived flare. This behaviour, of multiple flares dominating the XRT light curve for tens of kiloseconds, is reminiscent of GRBs 050904, 121027A and 130925A (see https://www.swift.ac.uk/xrt_curves/allcurves.php for a mugshot gallery of all XRT GRB afterglows).
This flaring activity makes it difficult to model the underlying behaviour. Excluding all of the above times, the light curve can be modelled with a power-law decay with a decay index of alpha=0.79 (+0.05, -0.06). These formal errors are likely underestimates, since they depend on how accurate the estimates of flare times are, which are themselves subject to proper modelling of the underlying emission.
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.65 (+/-0.05). The best-fitting absorption column is 4.9 (+/-0.3) x 10^21 cm^-2, in excess of the Galactic value of 2.1 x 10^20 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.97 (+/-0.12) and a best-fitting absorption column of 2.9 (+/-0.5) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.7 x 10^-11 (5.4 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     2.9 (+/-0.5) x 10^21 cm^-2
Galactic foreground: 2.1 x 10^20 cm^-2
Excess significance: 9.6 sigma
Photon index:	     1.97 (+/-0.12)
```
If the light curve continues to decay with a power-law decay index of 0.79, the count rate at T+24 hours will be 0.024 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 9.2 x 10^-13 (1.3 x 10^-12) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/01003002.
This circular is an official product of the Swift-XRT team.
GCN Circular #28809
P. Veres and C. Meegan (both UAH) report on behalf of the Fermi GBM Team:
"At 20:19:51.61 UT on 29 October 2020, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 201029A (trigger 625695596 / 201029847) which was also detected by the Swift/BAT (Dichiara et al., GCN 28803). The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight at the GBM trigger time is 59 degrees.
The GBM light curve consists of a broad peak with a duration (T90) of about 78 s (50-300 keV). The time-averaged spectrum from T0-8.2 s to T0+34.8 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -1.03 +/- 0.10 and the cutoff energy, parameterized as Epeak, is 647 +/- 230 keV.
The event fluence (10-1000 keV) in this time interval is (1.59 +/- 0.14)E-5 erg/cm^2. The 1-sec peak photon flux measured starting from T0+1.4 s in the 10-1000 keV band is 1.4 +/- 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 #28810
F. E. Marshall (NASA/GSFC) and S. Dichiara (NASA/GSFC/UMCP) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 201029A 131 s after the BAT trigger (Dichiara et al., GCN Circ. 28803). No optical afterglow consistent with the XRT position (Beardmore et al. GCN Circ. 28806) 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           131          281          147         >20.6

u_FC               289          539          246         >19.9

white              131         1708          412         >21.4

v                  619         1759          127         >19.2

b                  545         1858          136         >19.9

u                  289         1833          362         >20.0

w1                 842         1808           97         >19.5
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.02 in the direction of the burst (Schlegel et al. 1998).

GCN Circular #28811
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),
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-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) was pointed to the Swift GRB 201029A ( S. Dichiara et al., GCN 28803) errorbox 103 sec after trigger time at 2020-10-29 20:23:35 UT, with upper limit up to 17.3 mag. The observations began at zenith distance = 77 deg. The sun altitude is -27.6 deg.
The galactic latitude b = 56 deg., longitude l = 73 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1471870
We obtain a following upper limits.

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     113 |          MASTER-IAC |   C |    20 | 15.9 |        
     148 |          MASTER-IAC |   C |    90 | 16.6 |  Coadd 
     338 |          MASTER-IAC |   C |   470 | 17.3 |  Coadd 
     146 |          MASTER-IAC |   C |    30 | 16.0 |        
     197 |          MASTER-IAC |   C |    40 | 16.0 |        
     253 |          MASTER-IAC |   C |    50 | 16.3 |        
     343 |          MASTER-IAC |   C |   230 | 17.0 |  Coadd 
     322 |          MASTER-IAC |   C |    60 | 16.4 |        
     672 |          MASTER-IAC |   C |   120 | 16.5 |        
     817 |          MASTER-IAC |   C |   150 | 16.6 |        
     997 |          MASTER-IAC |   C |   510 | 16.6 |  Coadd 
     993 |          MASTER-IAC |   C |   180 | 16.4 |        
    1193 |          MASTER-IAC |   C |   180 | 16.4 |        
    1392 |          MASTER-IAC |   C |   180 | 16.1 |        
    1572 |          MASTER-IAC |   C |   540 | 16.6 |  Coadd 
    1591 |          MASTER-IAC |   C |   180 | 16.0 |        
    1791 |          MASTER-IAC |   C |   180 | 15.9 |        
    1991 |          MASTER-IAC |   C |   180 | 15.7 |        
    2601 |          MASTER-IAC |   C |   180 | 15.3 |        
   83049 |          MASTER-IAC |   C |    60 | 16.8 |        
   84836 |          MASTER-IAC |   C |    60 | 16.5 |        
   85552 |          MASTER-IAC |   C |    60 | 16.6 |

Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.

GCN Circular #28813
S. Laha (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), S. Dichiara (NASA/GSFC/UMCP), H. A. Krimm (NSF), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-60 to T+243 sec from the recent telemetry downlink, we report further analysis of BAT GRB 201029A (trigger #1003002) (S. Dichiara et al., GCN Circ. 28803). The BAT ground-calculated position is RA, Dec = 229.607, 44.473 deg which is
```
   RA(J2000)  =  15h 18m 25.7s
   Dec(J2000) = +44d 28' 21.7"
```
with an uncertainty of 2.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 96%.
The BAT light curve showed a complex structure with a duration of about 150 sec. T90 (15-350 keV) is 120.55 +- 9.54 sec (estimated error including systematics).
The time-averaged spectrum from T-2.19 to T+133.11 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.09 +- 0.11. The fluence in the 15-150 keV band is 2.2 +- 0.1 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+7.06 sec in the 15-150 keV band is 0.6 +- 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/1003002/BA/

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Jochen Greiner, last update: 30-Oct-2020 [Disclaimer]