Gamma-ray Burst 200122A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:41:13 UT
  NOTICE_TYPE:     Swift-BAT GRB Position
  TRIGGER_NUM:     950330,   Seg_Num: 0
  GRB_RA:          209.981d {+13h 59m 55s} (J2000),
                   210.209d {+14h 00m 50s} (current),
                   209.413d {+13h 57m 39s} (1950)
  GRB_DEC:         +27.566d {+27d 33' 56"} (J2000),
                   +27.469d {+27d 28' 08"} (current),
                   +27.807d {+27d 48' 26"} (1950)
  GRB_ERROR:       3.00 [arcmin radius, statistical only]
  GRB_INTEN:       1662 [cnts]    Image_Peak=173 [image_cnts]
  TRIGGER_DUR:     0.512 [sec] 
  TRIGGER_INDEX:   124     E_range: 25-100 keV
  BKG_INTEN:       15663 [cnts]
  BKG_TIME:        6047.69 SOD {01:40:47.69} UT
  BKG_DUR:         8 [sec]
  GRB_DATE:        18870 TJD;    22 DOY;   20/01/22
  GRB_TIME:        6060.36 SOD {01:41:00.36} UT
  GRB_PHI:         -156.95 [deg]
  GRB_THETA:        31.04 [deg]
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     20.09 [sigma]
  IMAGE_SIGNIF:    11.46 [sigma]
  MERIT_PARAMS:     +1  +0  +0  -1  +2  +1  +0  +0 +21  +0 
  SUN_POSTN:       303.72d {+20h 14m 53s}  -19.83d {-19d 49' 37"}
  SUN_DIST:        101.98 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      267.99d {+17h 51m 57s}  -22.56d {-22d 33' 43"}
  MOON_DIST:        74.94 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.52, 74.80 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      196.15, 36.93 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        SWIFT-BAT GRB Coordinates.  
  COMMENTS:        This is a rate trigger.  
  COMMENTS:        A point_source was found.  
  COMMENTS:        This does not match any source in the on-board catalog.  
  COMMENTS:        This does not match any source in the ground catalog.  
  COMMENTS:        This is a GRB.  
  COMMENTS:        This trigger occurred at longitude,latitude = 9.50,0.37 [deg].  
  

• red DSS finding chart ps-file
  
  
• GCN NOTICE
  

  TITLE:          GCN/INTEGRAL NOTICE
  NOTICE_DATE:    Wed 22 Jan 20 01:42:08 UT
  NOTICE_TYPE:    INTEGRAL SPI ACS Trigger
  TRIGGER_NUM:    8490,   Sub_Num: 0
  GRB_INTEN:      9.33 [sigma]   
  GRB_TIME:       6062.59 SOD {01:41:02.59} UT
  GRB_DATE:       18870 TJD;    22 DOY;   20/01/22
  COMMENTS:       INTEGRAL SPI_ACS GRB Trigger.
  COMMENTS:       Time_Scale=2.0000 and Time_Error=1.0000.
  COMMENTS:
  COMMENTS:       NOTE: This SPIACS event is temporally(2.0<100sec) coincident with the SWIFT_BAT event (trignum=950330).
  COMMENTS:
  COMMENTS:       The SPIACS lightcurve can be found at:
  COMMENTS:       ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2020-01/2020-01-22T01-41-02.4007-06213-19
  +344-0.lc
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:57:57 UT
  NOTICE_TYPE:     Swift-BAT GRB Lightcurve
  TRIGGER_NUM:     950330,   Seg_Num: 0
  GRB_RA:          209.981d {+13h 59m 55s} (J2000),
                   210.209d {+14h 00m 50s} (current),
                   209.413d {+13h 57m 39s} (1950)
  GRB_DEC:         +27.566d {+27d 33' 56"} (J2000),
                   +27.469d {+27d 28' 08"} (current),
                   +27.807d {+27d 48' 26"} (1950)
  GRB_DATE:        18870 TJD;    22 DOY;   20/01/22
  GRB_TIME:        6060.36 SOD {01:41:00.36} UT
  TRIGGER_INDEX:   124
  GRB_PHI:         -156.95 [deg]
  GRB_THETA:        31.04 [deg]
  DELTA_TIME:      12.00 [sec]
  TRIGGER_DUR:     0.512 [sec] 
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     20.09 [sigma]
  IMAGE_SIGNIF:    11.46 [sigma]
  LC_URL:          sw00950330000msb.lc
  SUN_POSTN:       303.73d {+20h 14m 56s}  -19.82d {-19d 49' 28"}
  SUN_DIST:        101.99 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.15d {+17h 52m 36s}  -22.58d {-22d 34' 41"}
  MOON_DIST:        75.06 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.52, 74.80 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      196.15, 36.93 [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 = 9.50,0.37 [deg].  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:58:08 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.972d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.577d {+27d 34' 36"} (J2000)
  POINT_ROLL:      106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6142.25 SOD {01:42:22.25} UT,   81.9 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        1.723
  N_STARS:         15
  X_OFFSET:        576 [pixels]
  Y_OFFSET:        544 [pixels]
  X_MAX:           1535 [pixels]
  Y_MAX:           1503 [pixels]
  DET_THRESH:      11
  PHOTO_THRESH:    5
  SL_URL:          sw00950330000msufc0081.fits
  SUN_POSTN:       303.73d {+20h 14m 56s}  -19.82d {-19d 49' 28"}
  SUN_DIST:        102.00 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.15d {+17h 52m 37s}  -22.58d {-22d 34' 41"}
  MOON_DIST:        75.08 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:58:27 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.972d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.577d {+27d 34' 36"} (J2000)
  POINT_ROLL:      106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6142.25 SOD {01:42:22.25} UT,   81.9 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        1.723
  N_STARS:         15
  X_OFFSET:        576 [pixels]
  Y_OFFSET:        544 [pixels]
  X_MAX:           1535 [pixels]
  Y_MAX:           1503 [pixels]
  DET_THRESH:      11
  PHOTO_THRESH:    5
  SL_URL:          sw00950330000msufc0081.fits
  SUN_POSTN:       303.73d {+20h 14m 56s}  -19.82d {-19d 49' 28"}
  SUN_DIST:        102.00 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.16d {+17h 52m 38s}  -22.58d {-22d 34' 42"}
  MOON_DIST:        75.08 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 15 Jan 20 11:54:18 UT
  NOTICE_TYPE:     Swift-BAT GRB Lightcurve
  TRIGGER_NUM:     949361,   Seg_Num: 0
  GRB_RA:           56.454d {+03h 45m 49s} (J2000),
                    56.720d {+03h 46m 53s} (current),
                    55.791d {+03h 43m 10s} (1950)
  GRB_DEC:          +5.613d {+05d 36' 46"} (J2000),
                    +5.674d {+05d 40' 27"} (current),
                    +5.458d {+05d 27' 27"} (1950)
  GRB_DATE:        18863 TJD;    15 DOY;   20/01/15
  GRB_TIME:        42623.73 SOD {11:50:23.73} UT
  TRIGGER_INDEX:   20000
  GRB_PHI:         -165.25 [deg]
  GRB_THETA:        30.10 [deg]
  DELTA_TIME:      0.00 [sec]
  TRIGGER_DUR:     64.000 [sec] 
  SOLN_STATUS:     0x13
  RATE_SIGNIF:     0.00 [sigma]
  IMAGE_SIGNIF:    15.01 [sigma]
  LC_URL:          sw00949361000msb.lc
  SUN_POSTN:       296.72d {+19h 46m 52s}  -21.17d {-21d 10' 00"}
  SUN_DIST:        119.98 [deg]   Sun_angle= -8.0 [hr] (East of Sun)
  MOON_POSTN:      179.78d {+11h 59m 07s}   +5.71d {+05d 42' 35"}
  MOON_DIST:       122.03 [deg]
  MOON_ILLUM:      73 [%]
  GAL_COORDS:      181.73,-36.65 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       55.49,-13.90 [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 = 210.16,18.06 [deg].  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:57:25 UT
  NOTICE_TYPE:     Swift-XRT Position
  TRIGGER_NUM:     950330,   Seg_Num: 0
  GRB_RA:          210.0153d {+14h 00m 03.67s} (J2000),
                   210.2431d {+14h 00m 58.34s} (current),
                   209.4472d {+13h 57m 47.32s} (1950)
  GRB_DEC:         +27.5504d {+27d 33' 01.4"} (J2000),
                   +27.4538d {+27d 27' 13.7"} (current),
                   +27.7922d {+27d 47' 31.7"} (1950)
  GRB_ERROR:       5.7 [arcsec radius, statistical plus systematic, 90% containment]
  GRB_INTEN:       9.13e-10 [erg/cm2/sec]
  GRB_SIGNIF:      6.24 [sigma]
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6132.59 SOD {01:42:12.59} UT,   72.2 [sec] since BAT Trigger Time
  TAM[0-3]:        327.62 237.20 261.65 243.68
  AMPLIFIER:       2
  WAVEFORM:        134
  SUN_POSTN:       303.73d {+20h 14m 55s}  -19.82d {-19d 49' 28"}
  SUN_DIST:        101.96 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.15d {+17h 52m 35s}  -22.58d {-22d 34' 39"}
  MOON_DIST:        75.03 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.47, 74.77 [deg] galactic lon,lat of the burst
  ECL_COORDS:      196.19, 36.93 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Coordinates.  
  COMMENTS:        The XRT position is 2.03 arcmin from the BAT position.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:57:41 UT
  NOTICE_TYPE:     Swift-XRT Image
  TRIGGER_NUM:     950330,   Seg_Num: 0
  GRB_RA:          210.0153d {+14h 00m 03.6s} (J2000),
                   210.2431d {+14h 00m 58.3s} (current),
                   209.4472d {+13h 57m 47.3s} (1950)
  GRB_DEC:         +27.5504d {+27d 33' 01.4"} (J2000),
                   +27.4538d {+27d 27' 13.7"} (current),
                   +27.7922d {+27d 47' 31.7"} (1950)
  GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       39 [cnts]
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6132.59 SOD {01:42:12.59} UT,   72.2 [sec] since BAT Trigger Time
  CENTROID_X:      239.61,  raw= 240  [pixels]
  CENTROID_Y:      276.39,  raw= 276  [pixels]
  ROLL:            106.17 [deg]
  GAIN:            1
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   -51.16
  GRB_POS_XRT_Z:   -159.80
  IMAGE_URL:       sw00950330000msxps_rw.img
  SUN_POSTN:       303.73d {+20h 14m 55s}  -19.82d {-19d 49' 28"}
  SUN_DIST:        101.96 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.15d {+17h 52m 36s}  -22.58d {-22d 34' 40"}
  MOON_DIST:        75.03 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.47, 74.77 [deg] galactic lon,lat of the burst
  ECL_COORDS:      196.19, 36.93 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Image.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Fri 01 Nov 19 21:33:32 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     932742,   Seg_Num: 0
  POINT_RA:        251.850d {+16h 47m 24s} (J2000)
  POINT_DEC:       +43.781d {+43d 46' 51"} (J2000)
  POINT_ROLL:      217.320d
  IMG_START_DATE:  18788 TJD;   305 DOY;   19/11/01
  IMG_START_TIME:  76954.14 SOD {21:22:34.14} UT,   870.8 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        1.699
  N_STARS:         190
  X_OFFSET:        417 [pixels]
  Y_OFFSET:        84 [pixels]
  X_MAX:           1856 [pixels]
  Y_MAX:           1523 [pixels]
  DET_THRESH:      11
  PHOTO_THRESH:    5
  SL_URL:          sw00932742000msufc0870.fits
  SUN_POSTN:       216.78d {+14h 27m 06s}  -14.55d {-14d 32' 56"}
  SUN_DIST:         66.58 [deg]   Sun_angle= -2.3 [hr] (East of Sun)
  MOON_POSTN:      281.21d {+18h 44m 50s}  -23.02d {-23d 01' 19"}
  MOON_DIST:        71.95 [deg]
  MOON_ILLUM:      26 [%]
  GAL_COORDS:       68.72, 40.28 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      237.59, 65.19 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:59:46 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.972d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.577d {+27d 34' 36"} (J2000)
  ROLL:            106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6142.25 SOD {01:42:22.25} UT,   81.9 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     601350166
  X_OFFSET:        1125 [pixels]
  Y_OFFSET:        794 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1285
  Y_GRB_POS:       954
  BINNING_INDEX:   1
  IM_URL:          sw00950330000msuni0106.fits
  SUN_POSTN:       303.73d {+20h 14m 56s}  -19.82d {-19d 49' 27"}
  SUN_DIST:        102.00 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.17d {+17h 52m 41s}  -22.58d {-22d 34' 47"}
  MOON_DIST:        75.09 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  COMMENTS:        The GRB Position came from the XRT Position Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 02:03:50 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.970d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.574d {+27d 34' 28"} (J2000)
  POINT_ROLL:      106.170d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6354.28 SOD {01:45:54.28} UT,   293.9 [sec] since BAT Trigger Time
  FILTER:          7, U
  BKG_MEAN:        0.484
  N_STARS:         13
  X_OFFSET:        805 [pixels]
  Y_OFFSET:        474 [pixels]
  X_MAX:           1764 [pixels]
  Y_MAX:           1433 [pixels]
  DET_THRESH:      6
  PHOTO_THRESH:    3
  SL_URL:          sw00950330000msufc0293.fits
  SUN_POSTN:       303.74d {+20h 14m 57s}  -19.82d {-19d 49' 25"}
  SUN_DIST:        102.00 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.21d {+17h 52m 50s}  -22.58d {-22d 35' 01"}
  MOON_DIST:        75.12 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.55, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:57:41 UT
  NOTICE_TYPE:     Swift-XRT Processed Image
  TRIGGER_NUM:     950330,   Seg_Num: 0
  GRB_RA:          210.0153d {+14h 00m 03.6s} (J2000),
                   210.2431d {+14h 00m 58.3s} (current),
                   209.4472d {+13h 57m 47.3s} (1950)
  GRB_DEC:         +27.5504d {+27d 33' 01.4"} (J2000),
                   +27.4538d {+27d 27' 13.7"} (current),
                   +27.7922d {+27d 47' 31.7"} (1950)
  GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       39 [cnts]
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6132.59 SOD {01:42:12.59} UT,   72.2 [sec] since BAT Trigger Time
  CENTROID_X:      239.61,  raw= 240  [pixels]
  CENTROID_Y:      276.39,  raw= 276  [pixels]
  ROLL:            106.17 [deg]
  GAIN:            1
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   -51.16
  GRB_POS_XRT_Z:   -159.80
  IMAGE_URL:       sw00950330000msxps_rw.img
  SUN_POSTN:       303.73d {+20h 14m 55s}  -19.82d {-19d 49' 28"}
  SUN_DIST:        101.96 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.15d {+17h 52m 36s}  -22.58d {-22d 34' 40"}
  MOON_DIST:        75.03 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.47, 74.77 [deg] galactic lon,lat of the burst
  ECL_COORDS:      196.19, 36.93 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Processed Image.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 02:06:12 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.970d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.575d {+27d 34' 29"} (J2000)
  POINT_ROLL:      106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6934.49 SOD {01:55:34.49} UT,   874.1 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        2.158
  N_STARS:         30
  X_OFFSET:        565 [pixels]
  Y_OFFSET:        234 [pixels]
  X_MAX:           2004 [pixels]
  Y_MAX:           1673 [pixels]
  DET_THRESH:      12
  PHOTO_THRESH:    6
  SL_URL:          sw00950330000msufc0874.fits
  SUN_POSTN:       303.74d {+20h 14m 57s}  -19.82d {-19d 49' 23"}
  SUN_DIST:        102.01 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.23d {+17h 52m 56s}  -22.59d {-22d 35' 09"}
  MOON_DIST:        75.14 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 02:06:30 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.970d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.574d {+27d 34' 28"} (J2000)
  ROLL:            106.170d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6354.28 SOD {01:45:54.28} UT,   293.9 [sec] since BAT Trigger Time
  FILTER:          7, U
  EXPOSURE_ID:     601350378
  X_OFFSET:        1125 [pixels]
  Y_OFFSET:        794 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1285
  Y_GRB_POS:       954
  BINNING_INDEX:   1
  IM_URL:          sw00950330000msuni0318.fits
  SUN_POSTN:       303.74d {+20h 14m 57s}  -19.82d {-19d 49' 23"}
  SUN_DIST:        102.01 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.24d {+17h 52m 56s}  -22.59d {-22d 35' 10"}
  MOON_DIST:        75.14 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.55, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [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).  
  COMMENTS:        This notice was forced out after watchdog timer expiring -- most likely due to missing packet(s);  
  COMMENTS:        as a consequence some of the fields may be incoorect (eg TRIGGER_NUM,RA,DEC).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 01:59:28 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.972d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.577d {+27d 34' 36"} (J2000)
  ROLL:            106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6142.25 SOD {01:42:22.25} UT,   81.9 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     601350166
  X_OFFSET:        1125 [pixels]
  Y_OFFSET:        794 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1285
  Y_GRB_POS:       954
  BINNING_INDEX:   1
  IM_URL:          sw00950330000msuni0106.fits
  SUN_POSTN:       303.73d {+20h 14m 56s}  -19.82d {-19d 49' 27"}
  SUN_DIST:        102.00 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.17d {+17h 52m 40s}  -22.58d {-22d 34' 46"}
  MOON_DIST:        75.09 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Image.  
  COMMENTS:        The GRB Position came from the XRT Position Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 02:06:56 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.970d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.575d {+27d 34' 29"} (J2000)
  ROLL:            106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6934.49 SOD {01:55:34.49} UT,   874.1 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     601350958
  X_OFFSET:        1124 [pixels]
  Y_OFFSET:        793 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1284
  Y_GRB_POS:       953
  BINNING_INDEX:   1
  IM_URL:          sw00950330000msuni0899.fits
  SUN_POSTN:       303.74d {+20h 14m 57s}  -19.82d {-19d 49' 23"}
  SUN_DIST:        102.01 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.24d {+17h 52m 57s}  -22.59d {-22d 35' 11"}
  MOON_DIST:        75.15 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [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:        If you have elected to receive attachments:  
  COMMENTS:        The uvot_catalog_image.fits.gz file does not exist; skipping the attachment.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 02:06:31 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     950330,   Seg_Num: 0
  POINT_RA:        209.970d {+13h 59m 53s} (J2000)
  POINT_DEC:       +27.575d {+27d 34' 29"} (J2000)
  POINT_ROLL:      106.171d
  IMG_START_DATE:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6934.49 SOD {01:55:34.49} UT,   874.1 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        2.158
  N_STARS:         30
  X_OFFSET:        565 [pixels]
  Y_OFFSET:        234 [pixels]
  X_MAX:           2004 [pixels]
  Y_MAX:           1673 [pixels]
  DET_THRESH:      12
  PHOTO_THRESH:    6
  SL_URL:          sw00950330000msufc0874.fits
  SUN_POSTN:       303.74d {+20h 14m 57s}  -19.82d {-19d 49' 23"}
  SUN_DIST:        102.01 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.24d {+17h 52m 56s}  -22.59d {-22d 35' 10"}
  MOON_DIST:        75.14 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.56, 74.81 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      196.13, 36.93 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN Circular #26844
  E. Sonbas (Adiyaman Univ.), C. Gronwall (PSU), J.D. Gropp (PSU), J. A. Kennea (PSU), N. J. Klingler (PSU), F. E. Marshall (NASA/GSFC), M. J. Moss (GWU), K. L. Page (U Leicester), D. M. Palmer (LANL), M. H. Siegel (PSU) and A. Tohuvavohu (U Toronto) report on behalf of the Neil Gehrels Swift Observatory Team:
  At 01:41:00 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 200122A (trigger=950330). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 209.981, +27.566 which is

     RA(J2000) = 13h 59m 55s
     Dec(J2000) = +27d 33' 56"
  

  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 50 sec. The peak count rate was ~11000 counts/sec (15-350 keV), at ~10 sec after the trigger.
  The XRT began observing the field at 01:42:12.5 UT, 72.2 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source located at RA, Dec 210.01625, 27.54988 which is equivalent to:

     RA(J2000)  = 14h 00m 03.90s
     Dec(J2000) = +27d 32' 59.6"
  

  with an uncertainty of 3.5 arcseconds (radius, 90% containment). This location is 126 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.
  A power-law fit to a spectrum formed from promptly downlinked event data gives a column density in excess of the Galactic value (1.54 x 10^20 cm^-2, Willingale et al. 2013), with an excess column of 1 (+0.55/-0.45) x 10^22 cm^-2 (90% confidence).
  The initial flux in the 2.5 s image was 9.13e-10 erg cm^-2 s^-1 (0.2-10 keV).
  UVOT took a finding chart exposure of 150 seconds with the White filter starting 81 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.03.
  Burst Advocate for this burst is E. Sonbas (edasonbas AT yahoo.com). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/)
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Wed 22 Jan 20 02:30:20 UT
  NOTICE_TYPE:     Swift-XRT Position UPDATE
  TRIGGER_NUM:     950330,   Seg_Num: 0
  GRB_RA:          210.0169d {+14h 00m 04.05s} (J2000),
                   210.2447d {+14h 00m 58.72s} (current),
                   209.4488d {+13h 57m 47.70s} (1950)
  GRB_DEC:         +27.5497d {+27d 32' 58.9"} (J2000),
                   +27.4531d {+27d 27' 11.2"} (current),
                   +27.7915d {+27d 47' 29.2"} (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:  18870 TJD;    22 DOY;   20/01/22
  IMG_START_TIME:  6437.00 SOD {01:47:17.00} UT,   376.6 [sec] since BAT Trigger Time
  TAM[0-3]:        100.00 100.00 100.00 100.00
  AMPLIFIER:       1
  WAVEFORM:        31
  SUN_POSTN:       303.76d {+20h 15m 01s}  -19.82d {-19d 49' 10"}
  SUN_DIST:        101.97 [deg]   Sun_angle= 6.2 [hr] (West of Sun)
  MOON_POSTN:      268.47d {+17h 53m 52s}  -22.61d {-22d 36' 31"}
  MOON_DIST:        75.28 [deg]
  MOON_ILLUM:      8 [%]
  GAL_COORDS:       38.47, 74.77 [deg] galactic lon,lat of the burst
  ECL_COORDS:      196.19, 36.93 [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 2.8% < P(seren) < 6.6%.  
  

• GCN Circular #26845
  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-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 200122A ( E. Sonbas et al., GCN 26844) errorbox 8770 sec after trigger time at 2020-01-22 04:07:10 UT, with upper limit up to 19.4 mag. The observations began at zenith distance = 38 deg. The sun altitude is -49.9 deg.
  The galactic latitude b = 74 deg., longitude l = 38 deg.
  Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1266128
  We obtain a following upper limits.

  Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
  _________|_____________________|_____|_______|______|________
  
  
      8860 |          MASTER-IAC |   C |   180 | 19.4 |        
      8860 |          MASTER-IAC |   C |   180 | 19.2 |        
  

  Filter C is a clear (unfiltred) band.
  The observation and reduction will continue. The message may be cited.
• GCN Circular #26846
  J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
  Using 1627 s of XRT Photon Counting mode data and 1 UVOT images for GRB 200122A, 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 = 210.01807, +27.54884 which is equivalent to:

  RA (J2000): 14h 00m 4.34s
  Dec (J2000): +27d 32' 55.8"
  

  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 #26852
  J. D. Gropp (PSU), A. Tohuvavohu (U. Toronto), J.A. Kennea (PSU), P.A. Evans (U. Leicester), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), A. D'Ai (INAF-IASFPA), A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB) and E. Sonbas report on behalf of the Swift-XRT team:
  We have analysed 6.4 ks of XRT data for GRB 200122A (Sonbas et al. GCN Circ. 26844), from 63 s to 35.2 ks after the BAT trigger. The data comprise 296 s in Windowed Timing (WT) mode (the first 8 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Osborne et al. (GCN Circ. 26846).
  The late-time light curve (from T0+5.3 ks) can be modelled with a power-law decay with a decay index of alpha=0.67 (+0.11, -0.10).
  A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.84 (+/-0.05). The best-fitting absorption column is 1.44 (+/-0.07) x 10^22 cm^-2, in excess of the Galactic value of 1.5 x 10^20 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 2.25 (+/-0.14) and a best-fitting absorption column of 1.70 (+0.18, -0.17) x 10^22 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 5.1 x 10^-11 (1.3 x 10^-10) erg cm^-2 count^-1.
  A summary of the PC-mode spectrum is thus:

  Total column:	     1.70 (+0.18, -0.17) x 10^22 cm^-2
  Galactic foreground: 1.5 x 10^20 cm^-2
  Excess significance: 16.2 sigma
  Photon index:	     2.25 (+/-0.14)
  

  If the light curve continues to decay with a power-law decay index of 0.67, the count rate at T+24 hours will be 0.11 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 5.7 x 10^-12 (1.5 x 10^-11) erg cm^-2 s^-1.
  The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00950330.
  This circular is an official product of the Swift-XRT team.
• GCN Circular #26853
  K.Wiersema (1); D.Steeghs (1); K.Ulaczyk (1); J.Lyman (1); R.Cutter (1); T.Killestein (1); M.Dyer (3); M.Kennedy (10); G.Ramsay (5); D.K.Galloway (2); V.Dhillon (3); P.O’Brien (4); D.Pollacco (1); E.Thrane (2); S.Poshyachinda (6); S.Mattila (7); L.Nuttall (8); E.Palle (9); A.Levan (1); T.Marsh (1); R.West (1); E.Stanway (1); B.Gompertz (1); J.McCormac (1); P.Strom (1); K.Ackley (2); Y.-L.Mong (2); A.Casey (2); M.Brown (2); B.Muller (2); J.Mullaney (3); E.Daw (3); S.Littlefair (3); J.Maund (3); L.Makrygianni (3); R.Starling (4); R.Eyles (4); S.Tooke (4); S.Aukkaravittayapun (6); U.Sawangwit (6); S.Awiphan (6); D.Mkrtichian (6); P.Irawati (6); R.Kotak (7); T.Heikkila (7); E.Rol (2) (1) Warwick University, (2) Monash University, (3) University of Sheffield, (4) University of Leicester, (5) Armagh Observatory & Planetarium, (6) National Astronomical Research Institute of Thailand, (7) University of Turku, (8) University of Portsmouth, (9) Instituto de Astrofisica de Canarias), (10) Univ. of Manchester.
  report on behalf of the GOTO collaboration:
  We carried out observations with the Gravitational-wave Optical Transient Observer (GOTO), in response to GRB 200122A (Sonbas et al. 2020; GCN #26844).
  We made a series of 3 x 60 s exposures using our wide L-band filter (400-700 nm) covering the Swift XRT position RA, Dec = 210.01807, +27.54884 (Osborne et al. 2020; GCN #26846), with midtime 02:35:49 UT on 22 January 2020 (3289 seconds after trigger).
  Using a difference imaging analysis with recent survey observations of the same pointings as reference, we identify no viable afterglow candidate. Our 5-sigma detection limit was g=19.5 mag based on PS1 catalogue calibrators.
  GOTO is operated at the La Palma observing facilities of the University of Warwick on behalf of a consortium including the University of Warwick, Monash University, Armagh Observatory, the University of Leicester, the University of Sheffield, the National Astronomical Research Institute of Thailand (NARIT) and the Instituto de Astrofisica de Canarias (IAC) (https://goto-observatory.org)
• GCN Circular #26854
  Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ), Martin Masek, Petr Janecek, Sergey Karpov, 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 alert of GRB200122A (Sonbas et al, GCNC 26844), obtaining a series of 20s unfiltered images starting at 01:41:33.0UT, i.e. 32.6s post trigger.
  We do not detect any new source in comparison to USNO-B2.0 catalog neither in single images (3-sigma limit R>~17.4) nor in a combined 40x20s frame (mean exp time 551s post trigger, 3-sigma limit R>~19.3).
• GCN Circular #26859
  A. Belles (PSU) and E. Sonbas (Adiyaman Univ.) report on behalf of the Swift/UVOT team:
  The Swift/UVOT began settled observations of the field of GRB 200122A 82 s after the BAT trigger (Sonbas et al., GCN Circ. 26844). No optical afterglow consistent with the XRT position (Osborne et al. GCN Circ. 26846) 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            82          232          147         >21.1
  u_fc               294          544          246         >20.9
  white               82         5672          627         >21.7
  v                  624         6083          352         >19.4
  b                  550         5467          333         >20.6
  u                  294         1844          363         >20.7
  w1                 674         1472           58         >20.1
  m2                6088         6276          186         >19.5
  w2                5678         5878          197         >20.3
  

  The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
• GCN Circular #26860
  X. Liu, D. Xu, H.J. Wang, Z.P. Zhu, B.Y. Yu (NAOC) report:
  We observed the field of GRB 200122A (Sonbas et al., GCN 26844) using the Xinglong-2.16m telescope equipped with the BFOSC camera. Observations started at 22:14:52 UT on 2020-01-22 (i.e., 20.57 h after the BAT trigger), and 5x200 s R-band frames have been obtained.
  No optical afterglow is detected at the Swift XRT's position in our stacked image, down to a limiting magnitude of m(R) ~ 22.0, calibrated with the nearby PanSTARRS field.
• GCN Circular #26861
  A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), H. A. Krimm (NSF), S. Laha (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), E. Sonbas (Adiyaman Univ.), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
  Using the data set from T-240 to T+302 sec from the recent telemetry downlink, we report further analysis of BAT GRB 200122A (trigger #950330) (Sonbas et al., GCN Circ. 26844). The BAT ground-calculated position is RA, Dec = 210.010, 27.548 deg which is

     RA(J2000)  =  14h 00m 02.4s
     Dec(J2000) = +27d 32' 52.2"
  

  with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 78%.
  The mask-weighted light curve shows a multi-peaked structure that starts from ~T-10 s and ends at ~T+200 s. The main emission interval is around T-10 s to T+50 s, with the highest peak occurs at ~T+10 s. In addition, there is a weak pulse around ~T+192 s. T90 (15-350 keV) is 174.96 +- 14.54 sec (estimated error including systematics).
  The time-averaged spectrum from T-8.572 to T+201.832 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.60 +- 0.05. The fluence in the 15-150 keV band is 1.1 +- 0.03 x 10^-5 erg/cm2. The 1-sec peak photon flux measured from T+10.18 sec in the 15-150 keV band is 9.1 +- 0.4 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/950330/BA/
• GCN Circular #26862
  Alan M. Watson (UNAM), Nat Butler (ASU), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UVI), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Harvey Moseley (GSFC), John Capone (UMD), V. Zach Golkhou (U. Wash.), and Vicki Toy (UMD) report:
  We observed the field of GRB 200122A (Sonbas et al., GCN Circ. 26844) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2020/01 22.35 to 2020/01 22.56 UTC (6.67 to 11.76 hours after the BAT trigger), obtaining a total of 3.76 hours exposure in the r and i bands.
  For a source within the Swift-XRT enhanced error circle (Osborne et al., GCN Circ. 26846), in comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following 3-sigma upper limits:

    r	> 23.72
    i	> 23.42
  

  These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB.
  We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
• GCN Circular #26864
  R. Adachi, K. L. Murata, M. Niwano, F. Ogawa, R. Hosokawa, N. Nakamura, S. Toma, M. Oeda, K. Shiraishi, K. Iida, Y. Yatsu, and N. Kawai(TokyoTech) report on behalf of the MITSuME collaboration:
  We searched for the optical counterpart of GRB 200122A (E. Sonbas et al.,GCN Circular #26844) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope of Akeno Observatory, Yamanashi, Japan. The observation started on 14:39:41 UT. Then the observation stopped due to the bad weather and started again at 16:20:20 UT. We did not find any new point sources within the Swift-XRT error circle (J.P. Osborne et al., GCN Circular #26846) in all three bands.
  We obtained the 5-sigma limits as follows.

  T0+[hour] MID-UT T-EXP[sec] 5-sigma limits
  ------------------------------------------------------------------------------------------------
  14.66 17:41:47 7140 g'>18.6,Rc>18.8,Ic>18.1
  ------------------------------------------------------------------------------------------------
  
  T0+ : Elapsed time after the burst
  T-EXP: Total Exposure time
  

  We used Pan-STARRS DR1 catalog for flux calibration. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al. ,in prep; https://github.com/MNiwano/Eclair)
• GCN Circular #26865
  D. Frederiks, S. Golenetskii, R.Aptekar, A.Lysenko, A. Ridnaia, D. Svinkin, A. Tsvetkova, M. Ulanov, and T. Cline, on behalf of the Konus-Wind team, report:
  The long GRB 200122A (Swift detection: Sonbas et al., GCN 26844) triggered Konus-Wind (KW) at T0=6066.859 s UT (01:41:06.859).
  The burst light curve shows a multi-peaked structure in the interval from ~T0-12 s to ~T0+26 s. The total duration of the burst is ~40 s. The emission is seen up to ~10 MeV.
  The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB200122_T06066/
  As observed by Konus-Wind, the burst had a fluence of (2.0 ± 0.3)x10^-5 erg/cm^2 and a 64-ms peak energy flux, measured from T0+6.080, of (5.7 ± 0.7)x10^-6 erg/cm^2/s (both in the 20 keV - 10 MeV energy range).
  The time-integrated spectrum (measured from T0 to T0+24.832 s) is best fit in the 20 keV - 20 MeV range by the GRB (Band) function with the following model parameters: the low-energy photon index alpha = -1.00 (-0.13,+0.16), the high energy photon index beta = -2.81 (-0.94,+0.32), the peak energy Ep = 148 (-16,+15) keV, chi2 = 83/96 dof.
  The spectrum near the peak count rate (measured from T0 to T0+8.448 s) is best fit in the 20 keV - 15 MeV range by the GRB (Band) function with the following model parameters: the low-energy photon index alpha = -0.88 (-0.16,+0.19), the high energy photon index beta = -2.37 (-0.39,+0.16), the peak energy Ep = 168 (-22,+31) keV, chi2 = 83/96 dof.
  All the quoted errors are estimated at the 68% confidence level. All the presented results are preliminary.
• GCN Circular #26869
  S. Belkin (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), E. Mazaeva (IKI), A. Volnova (IKI) report on behalf of IKI-GRB-FuN:
  We observed the field of GRB 200122A (Sonbas et al. GCN 26844) with AZT-33IK telescope of Sayan observatory (Mondy) starting on Jan. 22 (UT) 20:23:25. We do not detect any optical object in the Enhanced Swift-XRT position (Osborne et al. GCN 26846). Preliminary photometry of the field is following.

  Date       UT start   t-T0       Filter Exp.    OT       UL(3sigma)
                         (mid, days)        (s)
  
  2020-01-22 20:23:25   0.79876     R     30*120  n/d      23.3
  

  Photometry is based on the USNO-B2.0 nearby stars

  USNO-B1.0_id R2
  1175-0271901 16.74
  1174-0271881 19.69
  

• GCN Circular #26870
  Dimple, R. Gupta, V.K. Jha, A. Aryan, A. Ghosh, K. Misra, A. Kumar, and S.B. Pandey report:
  We carried out observation of GRB 200122A (Sonbas et al., GCN Circ. 26844) with the 1.3m Devasthal Fast Optical Telescope (DFOT) at Devasthal observatory of Aryabhatta Research Institute of observational sciencES (ARIES), India. The observation was started on 2020-01-23 at 10:29:41 UT. We observed a series of 3 x 300s exposures using R filter (Johnson-Cousins) covering Swift XRT enhanced position RA, Dec = 210.01807,+2754884 (Osborne et al., GCN Circ. 26846).
  We do not detect any new optical source within the Swift XRT enhanced error circle neither in single images nor in the combined image.
  We obtained the 3-sigma upper limit as follows

  T_start-T0 (hours) Start_UT End_UT Filter 3-sigma upper limit 
  ------------------------------------------------------------------------------------------------- 
  8.8 10:29:41 10:44:41 R >21.13 
  ------------------------------------------------------------------------------------------------- 
  

  Photometry is done based on USNO-B1.0 catalog. This magnitude is not corrected for Galactic extinction in the direction of the GRB.
• GCN Circular #26871
  R. Gaikwad, S. Gupta, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:
  Analysis of AstroSat CZTI data showed the detection of a long GRB 200122A, which was also detected by Swift (Sonbas E. et al., GCN #26844), Global MASTER-Net (Lipunov V. et al., GCN #26845), Swift-XRT (Osborne J. et al., GCN #26846), GOTO (Wiersema K. et al., GCN #26853), Swift/UVOT (Belles A. et al., GCN #26859), Xinglong-2.16m (Liu X. et al., GCN #26860), RATIR (Watson A. et al., GCN #26862), MITSuME Akeno ( Adachi R. et al., GCN #26864) and Konus-Wind (Frederiks D. et al., GCN #26864).
  The source was clearly detected in the 40-200 keV energy range. The light curve showed multiple peak of emissions with the strongest peak at 2020-01-22 01:41:00.0 UT. The measured peak count rate associated with the burst is 74 cts/s above the background in the combined data of four quadrants, with a total of 5463 cts. The local mean background count rate was 664 cts/s. Using cumulative rates, we measure a T90 of 39.3 s.
  It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.
  CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
• GCN Circular #26873
  Dimple, R. Gupta, V. K. Jha, A. Aryan, A. Ghosh, K. Misra, A. Kumar, and S. B. Pandey report:
  We carried out observation of GRB 200122A (Sonbas et al., GCN Circ. 26844) with the 1.3m Devasthal Fast Optical Telescope (DFOT) at the Devasthal observatory of Aryabhatta Research Institute of observational sciencES (ARIES), India. The observation was started on 2020-01-22 at 23:34:50 UTC. We observed a series of 3 x 300s exposures using R filter (Johnson-Cousins) covering Swift XRT enhanced position RA, Dec = 210.01807, +27.54884 (Osborne et al., GCN Circ. 26846).
  We do not detect any new optical source within the Swift XRT enhanced error circle neither in single image nor in the combined image.
  We obtained the 3-sigma upper limit as follows

  T_start-T0 (hours) Start_UTC End_UTC Filter 3-sigma upper limit 
  ------------------------------------------------------------------------------------------------------- 
  21.9 23:34:50 23:49:50 R >21.13 
  ------------------------------------------------------------------------------------------------------- 
  

  Photometry is done based on USNO-B1.0 catalog. This magnitude is not corrected for Galactic extinction in the direction of the GRB.