Gamma-ray Burst 060109

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 16:55:37 UT
  NOTICE_TYPE:     Swift-BAT GRB Position
  TRIGGER_NUM:     176620,   Seg_Num: 0
  GRB_RA:          282.710d {+18h 50m 50s} (J2000),
                   282.767d {+18h 51m 04s} (current),
                   282.239d {+18h 48m 57s} (1950)
  GRB_DEC:         +31.989d {+31d 59' 22"} (J2000),
                   +31.997d {+31d 59' 49"} (current),
                   +31.929d {+31d 55' 46"} (1950)
  GRB_ERROR:       3.00 [arcmin radius, statistical only]
  GRB_INTEN:       40638 [cnts]    Image_Peak=545 [image_cnts]
  TRIGGER_DUR:     8.192 [sec] 
  TRIGGER_INDEX:   453     E_range: 15-50 keV
  BKG_INTEN:       297718 [cnts]
  BKG_TIME:        60791.05 SOD {16:53:11.05} UT
  BKG_DUR:         64 [sec]
  GRB_DATE:        13744 TJD;     9 DOY;   06/01/09
  GRB_TIME:        60881.23 SOD {16:54:41.23} UT
  GRB_PHI:         -44.24 [deg]
  GRB_THETA:        18.27 [deg]
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     10.90 [sigma]
  IMAGE_SIGNIF:    7.10 [sigma]
  MERIT_PARAMS:     +1  +0  +0  +3  +1  +1  +0  +0 -57  +1 
  SUN_POSTN:       290.88d {+19h 23m 32s}  -22.05d {-22d 03' 00"}
  SUN_DIST:         54.60 [deg]
  MOON_POSTN:       51.80d {+03h 27m 13s}  +22.64d {+22d 38' 07"}
  MOON_DIST:       106.80 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.95, 14.10 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      288.79, 54.60 [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 = 299.31,16.51 [deg].  
  

• red DSS finding chart ps-file
  
  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 16:57:07 UT
  NOTICE_TYPE:     Swift-XRT Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  GRB_RA:          282.6830d {+18h 50m 43.9s} (J2000),
                   282.7397d {+18h 50m 57.5s} (current),
                   282.2121d {+18h 48m 50.9s} (1950)
  GRB_DEC:         +31.9930d {+31d 59' 34.7"} (J2000),
                   +32.0004d {+32d 00' 01.3"} (current),
                   +31.9330d {+31d 55' 58.7"} (1950)
  GRB_ERROR:       5.8 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       144 [cnts]
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60982.06 SOD {16:56:22.06} UT,   100.8 [sec] since BAT Trigger Time
  CENTROID_X:      278.03,  raw= 278  [pixels]
  CENTROID_Y:      258.37,  raw= 258  [pixels]
  ROLL:            170.71 [deg]
  GAIN:            2
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   -98.14
  GRB_POS_XRT_Z:   -49.32
  IMAGE_URL:       sw00176620000msxim.img
  SUN_POSTN:       290.88d {+19h 23m 32s}  -22.05d {-22d 03' 00"}
  SUN_DIST:         54.61 [deg]
  MOON_POSTN:       51.82d {+03h 27m 16s}  +22.64d {+22d 38' 22"}
  MOON_DIST:       106.82 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.94, 14.12 [deg] galactic lon,lat of the burst
  ECL_COORDS:      288.76, 54.61 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Image.  
  COMMENTS:        WARNING: XRT alignment calibration is on-going, and there may be  
  COMMENTS:        residual systematic offsets of several arcseconds not accounted for yet  
  COMMENTS:        by our on-board position determination algorithm.  We have increased  
  COMMENTS:        the estimated error circle radius to take this into account.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 16:57:31 UT
  NOTICE_TYPE:     Swift-XRT Processed Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  GRB_RA:          282.6830d {+18h 50m 43.9s} (J2000),
                   282.7397d {+18h 50m 57.5s} (current),
                   282.2121d {+18h 48m 50.9s} (1950)
  GRB_DEC:         +31.9930d {+31d 59' 34.7"} (J2000),
                   +32.0004d {+32d 00' 01.3"} (current),
                   +31.9330d {+31d 55' 58.7"} (1950)
  GRB_ERROR:       5.8 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       144 [cnts]
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60982.06 SOD {16:56:22.06} UT,   100.8 [sec] since BAT Trigger Time
  CENTROID_X:      278.03,  raw= 278  [pixels]
  CENTROID_Y:      258.37,  raw= 258  [pixels]
  ROLL:            170.71 [deg]
  GAIN:            2
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   -98.14
  GRB_POS_XRT_Z:   -49.32
  IMAGE_URL:       sw00176620000msxim.img
  SUN_POSTN:       290.88d {+19h 23m 32s}  -22.05d {-22d 03' 00"}
  SUN_DIST:         54.61 [deg]
  MOON_POSTN:       51.82d {+03h 27m 17s}  +22.64d {+22d 38' 25"}
  MOON_DIST:       106.82 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.94, 14.12 [deg] galactic lon,lat of the burst
  ECL_COORDS:      288.76, 54.61 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Processed Image.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 16:57:06 UT
  NOTICE_TYPE:     Swift-XRT Position
  TRIGGER_NUM:     176620,   Seg_Num: 0
  GRB_RA:          282.6830d {+18h 50m 43.9s} (J2000),
                   282.7397d {+18h 50m 57.5s} (current),
                   282.2121d {+18h 48m 50.9s} (1950)
  GRB_DEC:         +31.9930d {+31d 59' 34.7"} (J2000),
                   +32.0004d {+32d 00' 01.3"} (current),
                   +31.9330d {+31d 55' 58.7"} (1950)
  GRB_ERROR:       5.8 [arcsec radius, statistical plus systematic, 90% containment]
  GRB_INTEN:       4.80e-09 [erg/cm2/sec]
  GRB_SIGNIF:      12.00 [sigma]
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60982.06 SOD {16:56:22.06} UT,   100.8 [sec] since BAT Trigger Time
  TAM[0-3]:        327.64 237.19 261.21 243.26
  AMPLIFIER:       2
  WAVEFORM:        134
  SUN_POSTN:       290.88d {+19h 23m 32s}  -22.05d {-22d 03' 00"}
  SUN_DIST:         54.61 [deg]
  MOON_POSTN:       51.82d {+03h 27m 16s}  +22.64d {+22d 38' 21"}
  MOON_DIST:       106.82 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.94, 14.12 [deg] galactic lon,lat of the burst
  ECL_COORDS:      288.76, 54.61 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Coordinates.  
  COMMENTS:        WARNING: XRT alignment calibration is on-going, and there may be  
  COMMENTS:        residual systematic offsets of several arcseconds not accounted for yet  
  COMMENTS:        by our on-board position determination algorithm.  We have increased  
  COMMENTS:        the estimated error circle radius to take this into account.  
  COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
  COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact; see example at:  
  COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 16:58:36 UT
  NOTICE_TYPE:     Swift-BAT GRB Lightcurve
  TRIGGER_NUM:     176620,   Seg_Num: 0
  GRB_RA:          282.710d {+18h 50m 50s} (J2000),
                   282.767d {+18h 51m 04s} (current),
                   282.239d {+18h 48m 57s} (1950)
  GRB_DEC:         +31.989d {+31d 59' 22"} (J2000),
                   +31.997d {+31d 59' 49"} (current),
                   +31.929d {+31d 55' 46"} (1950)
  GRB_DATE:        13744 TJD;     9 DOY;   06/01/09
  GRB_TIME:        60881.23 SOD {16:54:41.23} UT
  TRIGGER_INDEX:   453
  GRB_PHI:         -44.24 [deg]
  GRB_THETA:        18.27 [deg]
  DELTA_TIME:      -60.00 [sec]
  TRIGGER_DUR:     8.192 [sec] 
  LC_URL:          sw00176620000msb.lc
  SUN_POSTN:       290.88d {+19h 23m 32s}  -22.05d {-22d 03' 00"}
  SUN_DIST:         54.60 [deg]
  MOON_POSTN:       51.83d {+03h 27m 20s}  +22.64d {+22d 38' 36"}
  MOON_DIST:       106.81 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.95, 14.10 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      288.79, 54.60 [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 = 299.31,16.51 [deg].  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:00:57 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.710d {+18h 50m 50s} (J2000)
  POINT_DEC:       +32.011d {+32d 00' 39"} (J2000)
  POINT_ROLL:      170.707d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60985.73 SOD {16:56:25.73} UT,   104.5 [sec] since BAT Trigger Time
  FILTER:          3, V
  BKG_MEAN:        1.194
  N_STARS:         190
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      9
  PHOTO_THRESH:    4
  SL_URL:          sw00176620000msufc0104.fits
  SUN_POSTN:       290.89d {+19h 23m 33s}  -22.05d {-22d 02' 58"}
  SUN_DIST:         54.62 [deg]
  MOON_POSTN:       51.85d {+03h 27m 25s}  +22.65d {+22d 38' 59"}
  MOON_DIST:       106.81 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.62 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:01:55 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.710d {+18h 50m 50s} (J2000)
  POINT_DEC:       +32.011d {+32d 00' 39"} (J2000)
  POINT_ROLL:      170.707d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60985.73 SOD {16:56:25.73} UT,   104.5 [sec] since BAT Trigger Time
  FILTER:          3, V
  BKG_MEAN:        1.194
  N_STARS:         190
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      9
  PHOTO_THRESH:    4
  SL_URL:          sw00176620000msufc0104.fits
  SUN_POSTN:       290.89d {+19h 23m 33s}  -22.05d {-22d 02' 58"}
  SUN_DIST:         54.62 [deg]
  MOON_POSTN:       51.86d {+03h 27m 27s}  +22.65d {+22d 39' 09"}
  MOON_DIST:       106.81 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.62 [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:     Mon 09 Jan 06 17:02:11 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.710d {+18h 50m 50s} (J2000)
  POINT_DEC:       +32.011d {+32d 00' 39"} (J2000)
  ROLL:            170.707d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60985.73 SOD {16:56:25.73} UT,   104.5 [sec] since BAT Trigger Time
  FILTER:          3, V
  EXPOSURE_ID:     158518586
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni0104.fits
  SUN_POSTN:       290.89d {+19h 23m 33s}  -22.05d {-22d 02' 58"}
  SUN_DIST:         54.62 [deg]
  MOON_POSTN:       51.87d {+03h 27m 28s}  +22.65d {+22d 39' 12"}
  MOON_DIST:       106.81 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.62 [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:     Mon 09 Jan 06 17:02:46 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.710d {+18h 50m 50s} (J2000)
  POINT_DEC:       +32.011d {+32d 00' 39"} (J2000)
  ROLL:            170.707d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  60985.73 SOD {16:56:25.73} UT,   104.5 [sec] since BAT Trigger Time
  FILTER:          3, V
  EXPOSURE_ID:     158518586
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni0104.fits
  SUN_POSTN:       290.89d {+19h 23m 33s}  -22.05d {-22d 02' 58"}
  SUN_DIST:         54.62 [deg]
  MOON_POSTN:       51.87d {+03h 27m 29s}  +22.65d {+22d 39' 17"}
  MOON_DIST:       106.82 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.62 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:08:21 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  POINT_ROLL:      170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61192.23 SOD {16:59:52.23} UT,   311.0 [sec] since BAT Trigger Time
  FILTER:          9, B
  BKG_MEAN:        2.247
  N_STARS:         190
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      12
  PHOTO_THRESH:    6
  SL_URL:          sw00176620000msufc0311.fits
  SUN_POSTN:       290.89d {+19h 23m 34s}  -22.05d {-22d 02' 56"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       51.92d {+03h 27m 41s}  +22.67d {+22d 40' 13"}
  MOON_DIST:       106.84 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:08:53 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  POINT_ROLL:      170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61192.23 SOD {16:59:52.23} UT,   311.0 [sec] since BAT Trigger Time
  FILTER:          9, B
  BKG_MEAN:        2.247
  N_STARS:         190
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      12
  PHOTO_THRESH:    6
  SL_URL:          sw00176620000msufc0311.fits
  SUN_POSTN:       290.89d {+19h 23m 34s}  -22.05d {-22d 02' 55"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       51.93d {+03h 27m 43s}  +22.67d {+22d 40' 18"}
  MOON_DIST:       106.84 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [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:     Mon 09 Jan 06 17:09:49 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  ROLL:            170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61192.23 SOD {16:59:52.23} UT,   311.0 [sec] since BAT Trigger Time
  FILTER:          9, B
  EXPOSURE_ID:     158518793
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni0311.fits
  SUN_POSTN:       290.89d {+19h 23m 34s}  -22.05d {-22d 02' 55"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       51.94d {+03h 27m 45s}  +22.67d {+22d 40' 27"}
  MOON_DIST:       106.84 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Image.  
  COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:10:42 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  ROLL:            170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61192.23 SOD {16:59:52.23} UT,   311.0 [sec] since BAT Trigger Time
  FILTER:          9, B
  EXPOSURE_ID:     158518793
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni0311.fits
  SUN_POSTN:       290.89d {+19h 23m 35s}  -22.05d {-22d 02' 55"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       51.94d {+03h 27m 47s}  +22.68d {+22d 40' 36"}
  MOON_DIST:       106.84 [deg]
  MOON_ILLUM:      79 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN Circular #4455
  M. De Pasquale (MSSL), S. Barthelmy (GSFC), A. Beardmore (U. Leicester), J. Cummings (GSFC/ORAU), N. Gehrels (GSFC), M.R. Goad (U. Leicester), O. Godet (U. Leicester), J. Kennea (PSU), H. Krimm (GSFC/USRA), F. Marshall (GSFC), K. Page (U. Leicester), D. Palmer (LANL), T. Sakamoto (GSFC), on behalf of the Swift Team:
  At 16:54:41 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060109 (trigger=176620). The BAT on-board calculated location is RA,Dec 282.710, +31.989 {18h 50m 50s, +31d 59' 22"} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multi-peaked structure with a duration of about 10 sec. The peak count rate was ~1000 counts/sec (15-350 keV), at ~8 sec after the trigger.
  The XRT began observing the burst at 16:56:22 UT, 101 sec after the BAT trigger. A bright (0.2-10 keV flux of 4.8e-09 erg/cm2/sec), fading, uncatalogued source was found by the on-board centroiding algorithm at

  RA(J2000)= 18h 50m 43.9s
  DEC(J2000)= +31d 59' 34.7"
  

  with an uncertainty of 5.8 arcsec radius (90% containment). This uncertainty includes a systematic error of about 5 arcsec in the on-board calculated positions due to the XRT boresight offset. This position lies 84 arcsec from the centre of the BAT error circle.
  UVOT took a finding chart exposure of 200 seconds with the V filter starting 104 sec after the BAT trigger. No 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 18th 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 19.0 mag. No correction has been made for the expected visual extinction of about 0.5 magnitudes.
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:49:43 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  POINT_ROLL:      170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61708.55 SOD {17:08:28.55} UT,   827.3 [sec] since BAT Trigger Time
  FILTER:          9, B
  BKG_MEAN:        3.618
  N_STARS:         153
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      16
  PHOTO_THRESH:    9
  SL_URL:          sw00176620000msufc0827.fits
  SUN_POSTN:       290.92d {+19h 23m 42s}  -22.04d {-22d 02' 41"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       52.31d {+03h 29m 13s}  +22.78d {+22d 46' 59"}
  MOON_DIST:       107.00 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:50:19 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  POINT_ROLL:      170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61708.55 SOD {17:08:28.55} UT,   827.3 [sec] since BAT Trigger Time
  FILTER:          9, B
  BKG_MEAN:        3.618
  N_STARS:         153
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      16
  PHOTO_THRESH:    9
  SL_URL:          sw00176620000msufc0827.fits
  SUN_POSTN:       290.92d {+19h 23m 42s}  -22.04d {-22d 02' 40"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       52.31d {+03h 29m 15s}  +22.78d {+22d 47' 05"}
  MOON_DIST:       107.00 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [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:     Mon 09 Jan 06 17:51:12 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  ROLL:            170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61708.55 SOD {17:08:28.55} UT,   827.3 [sec] since BAT Trigger Time
  FILTER:          9, B
  EXPOSURE_ID:     158519309
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni0827.fits
  SUN_POSTN:       290.92d {+19h 23m 42s}  -22.04d {-22d 02' 40"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       52.32d {+03h 29m 17s}  +22.79d {+22d 47' 13"}
  MOON_DIST:       107.00 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Image.  
  COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:51:48 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        282.711d {+18h 50m 51s} (J2000)
  POINT_DEC:       +32.013d {+32d 00' 48"} (J2000)
  ROLL:            170.708d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61708.55 SOD {17:08:28.55} UT,   827.3 [sec] since BAT Trigger Time
  FILTER:          9, B
  EXPOSURE_ID:     158519309
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni0827.fits
  SUN_POSTN:       290.92d {+19h 23m 42s}  -22.04d {-22d 02' 40"}
  SUN_DIST:         54.63 [deg]
  MOON_POSTN:       52.33d {+03h 29m 18s}  +22.79d {+22d 47' 19"}
  MOON_DIST:       107.00 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:       61.97, 14.10 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      288.80, 54.63 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  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:     Mon 09 Jan 06 17:55:56 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        136.200d {+09h 04m 48s} (J2000)
  POINT_DEC:       +44.028d {+44d 01' 40"} (J2000)
  POINT_ROLL:      32.060d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61914.88 SOD {17:11:54.88} UT,   1033.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  BKG_MEAN:        0.316
  N_STARS:         57
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      6
  PHOTO_THRESH:    2
  SL_URL:          sw00176620000msufc1033.fits
  SUN_POSTN:       290.93d {+19h 23m 43s}  -22.04d {-22d 02' 38"}
  SUN_DIST:        149.67 [deg]
  MOON_POSTN:       52.36d {+03h 29m 27s}  +22.80d {+22d 47' 60"}
  MOON_DIST:        70.17 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:      176.81, 41.96 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      125.30, 26.08 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:56:33 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        136.200d {+09h 04m 48s} (J2000)
  POINT_DEC:       +44.028d {+44d 01' 40"} (J2000)
  POINT_ROLL:      32.060d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61914.88 SOD {17:11:54.88} UT,   1033.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  BKG_MEAN:        0.316
  N_STARS:         57
  X_OFFSET:        508 [pixels]
  Y_OFFSET:        720 [pixels]
  X_MAX:           1467 [pixels]
  Y_MAX:           1679 [pixels]
  DET_THRESH:      6
  PHOTO_THRESH:    2
  SL_URL:          sw00176620000msufc1033.fits
  SUN_POSTN:       290.93d {+19h 23m 43s}  -22.04d {-22d 02' 38"}
  SUN_DIST:        149.67 [deg]
  MOON_POSTN:       52.37d {+03h 29m 29s}  +22.80d {+22d 48' 06"}
  MOON_DIST:        70.16 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:      176.81, 41.96 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      125.30, 26.08 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        If you have elected to receive attachments:  
  COMMENTS:        The uvot_catalog_srclist.fits.gz file does not exist; skipping the attachment.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:57:18 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        136.200d {+09h 04m 48s} (J2000)
  POINT_DEC:       +44.028d {+44d 01' 40"} (J2000)
  ROLL:            32.060d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61914.88 SOD {17:11:54.88} UT,   1033.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  EXPOSURE_ID:     158519515
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni1033.fits
  SUN_POSTN:       290.93d {+19h 23m 43s}  -22.04d {-22d 02' 38"}
  SUN_DIST:        149.67 [deg]
  MOON_POSTN:       52.38d {+03h 29m 30s}  +22.80d {+22d 48' 13"}
  MOON_DIST:        70.16 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:      176.81, 41.96 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      125.30, 26.08 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Image.  
  COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Mon 09 Jan 06 17:57:40 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     176620,   Seg_Num: 0
  POINT_RA:        136.200d {+09h 04m 48s} (J2000)
  POINT_DEC:       +44.028d {+44d 01' 40"} (J2000)
  ROLL:            32.060d
  IMG_START_DATE:  13744 TJD;     9 DOY;   06/01/09
  IMG_START_TIME:  61914.88 SOD {17:11:54.88} UT,   1033.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  EXPOSURE_ID:     158519515
  X_OFFSET:        828 [pixels]
  Y_OFFSET:        1040 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       988
  Y_GRB_POS:       1200
  BINNING_INDEX:   1
  IM_URL:          sw00176620000msuni1033.fits
  SUN_POSTN:       290.93d {+19h 23m 43s}  -22.04d {-22d 02' 38"}
  SUN_DIST:        149.67 [deg]
  MOON_POSTN:       52.38d {+03h 29m 31s}  +22.80d {+22d 48' 17"}
  MOON_DIST:        70.15 [deg]
  MOON_ILLUM:      80 [%]
  GAL_COORDS:      176.81, 41.96 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      125.30, 26.08 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  COMMENTS:        If you have elected to receive attachments:  
  COMMENTS:        The uvot_catalog_image.fits.gz file does not exist; skipping the attachment.  
  

  
• GCN Circular #4456
  S. Rosen (MSSL), M. De Pasquale (MSSL)
  In GCN 4455, the typical upper limit for UVOT was quoted as about 18 while the source list was stated as being complete to about 19.0.
  We issue a correction here. The 3sigma upper limit estimate made at the XRT position of GRB 060109 is 19.0 while the list of sources is typically complete to about 18th magnitude.
• GCN Circular #4460
  S.Maeno,E.Sonoda,S.Masuda,Y.Nakamura,M.Yamauchi (University of Miyazaki)
  "We have observed the field covering the error circle of GRB 060109 (GCN 4455) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki. The observation was started 20:10:19 UT on Jan.09. After co-adding a set of 6 images (20:10:19 - 20:18:06 UT) of 30 sec exposures, we have compared with the USNO A2.0 catalog. Preliminary analysis shows there is no new source brighter than 17.4mag."
• GCN Circular #4461
  A. J. Blustin (UCL-MSSL), M. De Pasquale (UCL-MSSL), S. R. Rosen (UCL-MSSL), L. Cominsky (Sonoma State U.), J. Norris (GSFC), N. Gehrels (GSFC) on behalf of the Swift/UVOT team
  The Swift/UVOT began observing the field of GRB 060109 at 16:56:13 UT on 2006-01-09 whilst settling on the target, 92 s after the BAT trigger (De Pasquale et al., GCN 4455). No new source is detected at the XRT position (reported by De Pasquale et al.) in coadded images with any of the filters down to the following 3-sigma magnitude upper limits. These values are not corrected for Galactic extinction; E(B-V) = 0.144.

  Filter   T_range(s)  Exp(s)  3sigUL(mag)
  
  V        92-22100    1449    20.0
  B        312-18155   1132    20.8
  U        637-17925   1038    20.5
  W1       613-17696   1001    19.9
  M2       589-22330   1233    20.3
  W2       542-21871   1262    19.9
  White    517-18385   1018    20.9
  

• GCN Circular #4462
  A.P. Beardmore, K.L. Page (U.Leicester), J. Kennea (PSU), M. De Pasquale (UCL-MSSL), P. Meszaros, M. Chester (PSU) report on behalf of the Swift XRT team:
  We have analysed the first four orbits of Swift-XRT data from GRB 060109. 8.3ks of PC mode data give a refined position of

  RA(J2000)   =  18h 50m 43.5s
  Dec(J2000)  = +31d 59' 29.7"
  

  with an estimated uncertainty of 3.2 arcsec (90% containment). This position is 7.7 arcsec away from the on-board XRT position quoted in De Pasquale et al. (GCN 4455) and includes the latest XRT boresight correction.
  The X-ray lightcurve shows a steeply declining early phase, with a decay slope of 5.1, which breaks to a shallower slope of 0.14 at about 300s. This is followed by a second break at 6100s to a slope of 1.2.
  The X-ray spectrum 100s to 200s after the BAT trigger can be fitted with an absorbed power-law with a photon index of 1.85+/-0.09 and a column density consistent with the Galactic value in this direction of 1.0e21 cm**2. The observed (unabsorbed) 0.3-10.0 keV flux over this interval is 5.1E-10 (6.2E-10) ergs cm**-2 s**-1.
  If the source continues to fade at the current rate we predict an XRT count rate of 0.006 counts/s 24hrs after the trigger, which corresponds to an observed (0.3-10 keV) flux of 2.4e-11 ergs cm**-2 s**-1.
• GCN Circular #4466
  K.L. Page, A.P. Beardmore (U. Leicester), D. Fox (PSU) and M. De Pasquale (UCL-MSSL) report on behalf of the Swift-XRT team:
  The predicted observed flux at 24 hours for GRB 060109 is 2.4e-13 erg cm^-2 s^-1. The value in GCN 4462 was incorrectly given as being 2 orders of magnitude higher. We apologise for any confusion.
• GCN Circular #4476
  D. Palmer (LANL), M. Ajello (MPE), L. Barbier (GSFC), S. Barthelmy (GSFC), J. Cummings (GSFC/ORAU), E. Fenimore (LANL), R. Fink (GSFC), N. Gehrels (GSFC), D. Hullinger (UMD), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (ISAS), J. Tueller (GSFC), on behalf of the Swift-BAT team:
  Using the data set from T-299.2 to T+302.9 sec from the recent telemetry downlink, we report further analysis of BAT GRB 060109 (trigger #176620) (De Pasquale, et al., GCN 4455). The BAT ground-calculated position is (RA,Dec) = 282.739, 32.009 {18h 50m 57.3s, 32d 0' 32.6"} (deg; J2000) +- 3.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 92%.
  The mask-tagged lightcurve shows a double peak structure. The first peak has a duration of ~20 sec. starting from T-2 sec. And the second peak has a duration of ~40 sec. starting from T+75 sec. T90 (15-350 keV) is (116 +- 3) sec (estimated error including systematics).
  Over the full burst interval (T-0.4 to T+126.8 sec), the power law index of the time-averaged spectrum is 1.96 +- 0.25. The fluence in the 15-150 keV band is (6.4 +- 1.0) x 10^-07 erg/cm2. The 1-sec peak photon flux measured from T+90.19 sec in the 15-150 keV band is (0.5 +- 0.1) ph/cm2/sec. All the quoted errors are at the 90% confidence level.
• GCN Circular #5279
  D. A. Kann (Thueringer Landessternwarte Tautenburg) and S. Manohar (USC, Los Angeles), report:
  We observed the field of GRB 060109 (Pasquale et al., GCN 4455) with the Tautenburg 1.34m Schmidt telescope under good observing conditions. We obtained 11 x 600 sec images in the Rc filter for a total integration time of 110 minutes. The mean observation time was June 27.9920 UT, which is 168.2 days after the burst. We determine the zero point of the image in comparison with nine unsaturated and isolated stars of the USNOB1.0 catalog. Astrometry is also performed against the USNOB1.0 catalog.
  At the refined position of the X-ray afterglow (Beardmore et al., GCN 4462), we do not detect any sources. The 2 sigma limiting magnitude of the image is Rc=23.5. This magnitude is not corrected for the moderate foreground extinction, E(B-V)=0.144.
  This message may be cited.
• GCN Circular #5280
  D. A. Kann (TLS Tautenburg) reports:
  The mean observation times of the locations of GRB 060105 (Kann & Manohar, GCN 5278) and GRB 060109 (Kann & Manohar, GCN 5279) should read 26.9X UT, not 27.9X UT.
  We regret this mistake and thank Petr Kubanek, who also pointed it out.