Gamma-ray Burst 060211B

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 15:55:47 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     181156,   Seg_Num: 0
GRB_RA:           75.069d {+05h 00m 17s} (J2000),
                  75.156d {+05h 00m 37s} (current),
                  74.357d {+04h 57m 26s} (1950)
GRB_DEC:         +14.958d {+14d 57' 27"} (J2000),
                 +14.966d {+14d 57' 59"} (current),
                 +14.884d {+14d 53' 03"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       9097 [cnts]    Image_Peak=315 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   262     E_range: 25-100 keV
BKG_INTEN:       90971 [cnts]
BKG_TIME:        57278.99 SOD {15:54:38.99} UT
BKG_DUR:         24 [sec]
GRB_DATE:        13777 TJD;    42 DOY;   06/02/11
GRB_TIME:        57314.76 SOD {15:55:14.76} UT
GRB_PHI:         121.57 [deg]
GRB_THETA:        17.14 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.04 [sigma]
IMAGE_SIGNIF:    9.03 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  +5  +0  +0 +37  +1 
SUN_POSTN:       325.13d {+21h 40m 32s}  -13.92d {-13d 55' 11"}
SUN_DIST:        112.53 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.52d {+08h 38m 05s}  +23.03d {+23d 01' 47"}
MOON_DIST:        51.76 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.95,-16.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       75.45, -7.73 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 30 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 349.67,18.22 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 15:56:46 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.047d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.955d {+14d 57' 17"} (J2000)
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57398.03 SOD {15:56:38.03} UT,   83.3 [sec] since BAT Trigger
+Time
COUNTS:          62    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        4    Max_iter_allowed= 4
ERROR_CODE:      2
COMMENTS:        SWIFT-XRT Nack Position.
COMMENTS:        Algorithm did not converge; too many interations.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 15:58:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     181156,   Seg_Num: 0
GRB_RA:           75.069d {+05h 00m 17s} (J2000),
                  75.156d {+05h 00m 37s} (current),
                  74.357d {+04h 57m 26s} (1950)
GRB_DEC:         +14.958d {+14d 57' 27"} (J2000),
                 +14.966d {+14d 57' 59"} (current),
                 +14.884d {+14d 53' 03"} (1950)
GRB_DATE:        13777 TJD;    42 DOY;   06/02/11
GRB_TIME:        57314.76 SOD {15:55:14.76} UT
TRIGGER_INDEX:   262
GRB_PHI:         121.57 [deg]
GRB_THETA:        17.14 [deg]
DELTA_TIME:      -56.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.04 [sigma]
IMAGE_SIGNIF:    9.03 [sigma]
LC_URL:          sw00181156000msb.lc
SUN_POSTN:       325.13d {+21h 40m 32s}  -13.92d {-13d 55' 09"}
SUN_DIST:        112.53 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.55d {+08h 38m 12s}  +23.02d {+23d 01' 20"}
MOON_DIST:        51.78 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.95,-16.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       75.45, -7.73 [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 = 349.67,18.22 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:01:17 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.047d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.955d {+14d 57' 18"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57397.26 SOD {15:56:37.26} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.402
N_STARS:         53
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00181156000msufc0082.fits
SUN_POSTN:       325.14d {+21h 40m 33s}  -13.92d {-13d 55' 07"}
SUN_DIST:        112.51 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.57d {+08h 38m 17s}  +23.02d {+23d 00' 58"}
MOON_DIST:        51.82 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:02:14 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.047d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.955d {+14d 57' 18"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57397.26 SOD {15:56:37.26} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.402
N_STARS:         53
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00181156000msufc0082.fits
SUN_POSTN:       325.14d {+21h 40m 33s}  -13.92d {-13d 55' 06"}
SUN_DIST:        112.51 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.58d {+08h 38m 19s}  +23.01d {+23d 00' 50"}
MOON_DIST:        51.83 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:02:38 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.047d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.955d {+14d 57' 18"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57397.26 SOD {15:56:37.26} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     161366198
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni0082.fits
SUN_POSTN:       325.14d {+21h 40m 33s}  -13.92d {-13d 55' 06"}
SUN_DIST:        112.51 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.58d {+08h 38m 20s}  +23.01d {+23d 00' 46"}
MOON_DIST:        51.83 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:04:01 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.047d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.955d {+14d 57' 18"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57397.26 SOD {15:56:37.26} UT,   82.5 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     161366198
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni0082.fits
SUN_POSTN:       325.14d {+21h 40m 33s}  -13.92d {-13d 55' 04"}
SUN_DIST:        112.51 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.59d {+08h 38m 22s}  +23.01d {+23d 00' 34"}
MOON_DIST:        51.84 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:07:18 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57604.12 SOD {16:00:04.12} UT,   289.4 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        2.030
N_STARS:         85
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      12
PHOTO_THRESH:    6
SL_URL:          sw00181156000msufc0289.fits
SUN_POSTN:       325.14d {+21h 40m 34s}  -13.92d {-13d 55' 02"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.62d {+08h 38m 29s}  +23.00d {+23d 00' 04"}
MOON_DIST:        51.87 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:08:30 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57604.12 SOD {16:00:04.12} UT,   289.4 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        2.030
N_STARS:         85
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      12
PHOTO_THRESH:    6
SL_URL:          sw00181156000msufc0289.fits
SUN_POSTN:       325.14d {+21h 40m 34s}  -13.92d {-13d 55' 01"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.63d {+08h 38m 32s}  +23.00d {+22d 59' 53"}
MOON_DIST:        51.88 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:08:50 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57604.12 SOD {16:00:04.12} UT,   289.4 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     161366405
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni0289.fits
SUN_POSTN:       325.14d {+21h 40m 34s}  -13.92d {-13d 55' 01"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.64d {+08h 38m 32s}  +23.00d {+22d 59' 50"}
MOON_DIST:        51.88 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:10:15 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  57604.12 SOD {16:00:04.12} UT,   289.4 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     161366405
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni0289.fits
SUN_POSTN:       325.14d {+21h 40m 34s}  -13.92d {-13d 55' 00"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.65d {+08h 38m 35s}  +22.99d {+22d 59' 38"}
MOON_DIST:        51.89 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:13:12 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58147.01 SOD {16:09:07.01} UT,   832.2 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.104
N_STARS:         77
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00181156000msufc0832.fits
SUN_POSTN:       325.14d {+21h 40m 35s}  -13.92d {-13d 54' 57"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.67d {+08h 38m 41s}  +22.99d {+22d 59' 11"}
MOON_DIST:        51.92 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:13:57 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58147.01 SOD {16:09:07.01} UT,   832.2 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.104
N_STARS:         77
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00181156000msufc0832.fits
SUN_POSTN:       325.14d {+21h 40m 35s}  -13.92d {-13d 54' 56"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.68d {+08h 38m 43s}  +22.98d {+22d 59' 05"}
MOON_DIST:        51.92 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:14:28 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58147.01 SOD {16:09:07.01} UT,   832.2 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     161366948
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni0832.fits
SUN_POSTN:       325.15d {+21h 40m 35s}  -13.92d {-13d 54' 56"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.68d {+08h 38m 44s}  +22.98d {+22d 58' 60"}
MOON_DIST:        51.93 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:15:47 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58147.01 SOD {16:09:07.01} UT,   832.2 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     161366948
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni0832.fits
SUN_POSTN:       325.15d {+21h 40m 35s}  -13.92d {-13d 54' 55"}
SUN_DIST:        112.50 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.69d {+08h 38m 47s}  +22.98d {+22d 58' 48"}
MOON_DIST:        51.94 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #4739
S. Mateos (U Leicester), S. Barthelmy (GSFC), N. Gehrels (GSFC), O. Godet (U Leicester), C. Hurkett (U Leicster), J. Kennea (PSU), H. Krimm (GSFC/USRA), F. Marshall (GSFC), J. Osborne (U Leicester), K. Page (U Leicester), D. Palmer (LANL) on behalf of the Swift team:
At 15:55:15 UT, Swift-BAT triggered and located GRB 060211B (trigger=181156). The spacecraft slewed immediately. The BAT on-board calculated location is RA,Dec 75.069d,+14.958d {05h 00m 17s,+14d 57' 27"} (J2000), with an uncertainty of 3 arcmin (radius, 90% containment, stat+sys). The BAT light curve shows two main peaks starting about 10 sec before the trigger and extending to +T+15sec, with a total duration of ~30 sec. The peak count rate was ~1000 counts/sec (15-350 keV), at ~0 seconds at the trigger.
The XRT began taking data at 15:56:38 UT, 83 seconds after the BAT trigger. The XRT on-board centroid algorithm did not converge and no prompt position is available. The lightcurve shows evidence of a fading source. We are waiting for down-linked data to detect and determine a position for the source.
UVOT took a finding chart exposure of 200 seconds with the V filter starting 84 seconds after the BAT trigger. No afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 25% of the BAT 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 BAT error circle. The list of sources is typically complete to about 18.0 mag. No correction has been made for the expected extinction of about 1.4 magnitudes.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:34:31 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58353.85 SOD {16:12:33.85} UT,   1039.1 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        1.739
N_STARS:         97
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00181156000msufc1039.fits
SUN_POSTN:       325.16d {+21h 40m 38s}  -13.91d {-13d 54' 39"}
SUN_DIST:        112.48 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.86d {+08h 39m 25s}  +22.93d {+22d 55' 60"}
MOON_DIST:        52.09 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:35:40 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
POINT_ROLL:      260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58353.85 SOD {16:12:33.85} UT,   1039.1 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        1.739
N_STARS:         97
X_OFFSET:        324 [pixels]
Y_OFFSET:        621 [pixels]
X_MAX:           1283 [pixels]
Y_MAX:           1580 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00181156000msufc1039.fits
SUN_POSTN:       325.16d {+21h 40m 38s}  -13.91d {-13d 54' 38"}
SUN_DIST:        112.48 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.87d {+08h 39m 28s}  +22.93d {+22d 55' 49"}
MOON_DIST:        52.10 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:36:04 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58353.85 SOD {16:12:33.85} UT,   1039.1 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     161367154
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni1039.fits
SUN_POSTN:       325.16d {+21h 40m 38s}  -13.91d {-13d 54' 38"}
SUN_DIST:        112.48 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.87d {+08h 39m 29s}  +22.93d {+22d 55' 46"}
MOON_DIST:        52.10 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 06 16:37:31 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     181156,   Seg_Num: 0
POINT_RA:         75.046d {+05h 00m 11s} (J2000)
POINT_DEC:       +14.956d {+14d 57' 22"} (J2000)
ROLL:            260.833d
IMG_START_DATE:  13777 TJD;    42 DOY;   06/02/11
IMG_START_TIME:  58353.85 SOD {16:12:33.85} UT,   1039.1 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     161367154
X_OFFSET:        644 [pixels]
Y_OFFSET:        941 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       804
Y_GRB_POS:       1101
BINNING_INDEX:   1
IM_URL:          sw00181156000msuni1039.fits
SUN_POSTN:       325.16d {+21h 40m 39s}  -13.91d {-13d 54' 37"}
SUN_DIST:        112.48 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      129.88d {+08h 39m 32s}  +22.93d {+22d 55' 33"}
MOON_DIST:        52.11 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      185.94,-16.47 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       75.43, -7.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #4743
J. A. Kennea (PSU), K. Page and C. Hurkett (U. Leicester) report on behalf of the Swift/XRT Team:
We have performed a preliminary analysis of Swift/XRT ground-linked data for GRB060211B (Mateos et al., GCN 4739). We find a uncatalogued, fading source at the following location:
```
RA(J2000):   05:00:17.2
Dec(J2000): +14:56:57.1
```
with an estimated uncertainty of 6 arcseconds (90% containment). This position lies 33 arcseconds from the BAT position reported in GCN 4739. A full analysis of the XRT data will follow.
GCN Circular #4744
R. Salyamov, M. Ibrahimov, (MAO), A. Pozanenko (IKI), V. Rumyantsev (CrAO) on behalf of larger GRB follow up collaboration report:
We observed the error box of GRB060211b (Mateos et al., GCN 4739) with 1.5m telescope of Maidanak Astronomical Observatory. We started the observation on Jan. 11 (UT) 16:15:54 (i.e. 20.7 minutes after GRB) and took a series of 300 sec frames in R-band. In a first frame of 300 s exposure we do net reveal any optical source within refined XRT error circle (Kennea et al., GCN 4743). The limiting magnitude of the first frame is 19.3R as calibrated against USNO B1.0. Further analysis is underway.
This message may be cited
GCN Circular #4745
K.L. Page, E. Rol, A.P. Beardmore (U Leicester) and A.J. Levan (U. Hertfordshire) report on behalf of the Swift XRT team:
Analysing the first three orbits of data (28 s in Windowed Timing mode and 6.4 ks in Photon Counting mode), the following refined position for the X-ray afterglow was determined:
```
RA(J2000) =   05h 00m 17.2s
Dec(J2000) = +14d 56' 58.9"
```
with an estimated uncertainty of 3.9 arcsec (90% containment). This is 31.6 arcsec from the on-board BAT position reported in GCN 4739 and 1.9 arcsec from the XRT position given in GCN 4743.
The light-curve shows a steep initial decay of 2.09 +/- 0.23, flattening to a slope of 0.62 +/- 0.23 towards the end of the first orbit (at 811 +/- 373 seconds after the trigger).
The spectrum obtained for the first orbit of data (118 - 2380 s post-trigger) can be fitted with a power-law of photon index Gamma = 1.54 +/- 0.27, assuming a Galactic column of 1.9e21 cm^-2; there is no evidence for excess NH in these data. Over this time span, the mean 0.3-10 keV observed (unabsorbed) flux is 4.1e-12 (4.9e-12) erg cm^-2 s^-1.
Assuming the current decay slope of 0.62 continues, and using the spectral fit to the first orbit of data, the XRT count rate is predicted to be 0.002 at 24 hours, corresponding to an observed (unabsorbed) flux of 8.0e-14 (9.7e-14) erg cm^-2 s^-1. Howev:r, taking into account the uncertainty in the decay slope, the observed flux at 24 hours could range between (0.3 - 2.4)e-13 erg cm^-2 s^-1.
This circular is an official product of the Swift-XRT Team.
GCN Circular #4747
J. Tueller (GSFC), L. Barbier (GSFC), S. Barthelmy (GSFC), J. Cummings (GSFC/ORAU), E. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (GSFC/UMD), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (ISAS), on behalf of the Swift-BAT team:
Using the data set from T-61 to T+122 sec from the recent telemetry downlink, we report further analysis of BAT GRB 060211 (trigger #181156) (Mateos, et al., GCN 4739). The BAT ground-calculated position is (RA,Dec) = 75.076, 14.954 deg {5h 0m 18.2s, 14d 57' 14.5"} (J2000) +- 2.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 82%.
The mask-tagged light curve shows a multi-peak structure with possible extended emission. The burst started at T-12 sec with a small peak, then a 4-sec long peak at T+0 that decays out to ~T+10 sec and low-level emission out to T+20 sec. Additionally, there is a possible 10-sec wide weak peak centered on T+100 sec and a possible faint precursor at T-22 sec. T90 (15-350 keV) is (29 +- 5) sec (estimated error including systematics). Since we do not have data past T+122 sec, we cannot say at this time anything about the extended lightcurve. We expect that it will take at least a day to get that data downlinked.
The time-averaged spectrum from T-11.0 to T+21.7 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.55 +- 0.21. The fluence in the 15-150 keV band is (4.7 +- 0.6) x 10^-07 erg/cm2. The 1-sec peak photon flux measured from T+1.84 sec in the 15-150 keV band is (0.7 +- 0.1) ph/cm2/sec. All the quoted errors are at the 90% confidence level.
GCN Circular #4752
S. B. Cenko, E. O. Ofek, A. M. Soderberg (Caltech) and D. B. Fox (Penn State) report on behalf of a larger collaboration:
We have imaged the field of GRB060211b (Mateos et al., GCN 4739) with the automated Palomar 60-inch telescope. Our observations were taken in the R and i' filters at a mean epoch of approximately Feb. 12.21 UT. Inside the revised XRT error circle (Page et al., GCN 4745) we find no sources. The limiting magnitude of our observations, calculated with respect to the USNOB R and I filters, is approximately R,I > 21.0.
GCN Circular #4758
A. Parsons (GSFC), L. Barbier (GSFC),S. Barthelmy (GSFC), J. Cummings (GSFC/ORAU), E. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (UMD), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), D. Palmer (LANL), T. Sakamoto (GSFC/ORAU), G. Sato (ISAS), J. Tueller (GSFC), on behalf of the Swift-BAT team:
We have now reviewed the recently downloaded GRB 060211B data for the T+122 s to T+300 s interval and find no additional burst activity beyond T+122 s. The temporal and spectral fits values given in GCN 4747 (J. Tueller et al.) have not changed.
GCN Circular #4759
P. Ward, L. A. Antonelli, E. Molinari, G. Chincarini, F.M. Zerbi, S. Covino, V. Testa, G. Tosti, F. Vitali, P. Conconi, G. Cutispoto, G. Malaspina, L. Nicastro, E. Palazzi, E. Meurs, P. Goldoni, on behalf of the REM/ROSS team, report:
The field of GRB 060211B (Mateos et al. GCN 4739) was imaged by the REM telescope located in La Silla (Chile).
The field was observed with the REMIR near infrared camera in the J, H, K' filters and ROSS in the V, R, I filters, starting on Feb. 12, at 00:30 UT, approximately 8.5 hrs after the burst.
No sources are detected within the refined XRT error circle (Page et al., GCN 4745) down to the limiting magnitudes of J=16.4, H=16.2, K=13.9, V=17.1, R=18.1, I=17.3 (3-sigma upper limits).
This message is citeable.
GCN Circular #4766
J. Norris, A. Kutyrev (NASA/GSFC), R. Ganguly, R. Canterna, and M. Pierce (U. Wyoming) report:
We observed the refined XRT error circle reported by Page et al. (GCN 4745) for GRB 060211a (Swift trigger #181156; Mateos et al., GCN 4739; Tueller et al., GCN 4747) with the 2.3-meter WIRO telescope.
Observations commenced at 2006/02/12 03:35 UT (11.7 hrs after the burst) and continued until 04:15 UT. We obtained twenty 100-s integrations of the target region in the J band under poor seeing conditions. In the stacked image, no source was detected within or near the XRT error circle to a limit of J = 19.2 (3-sigma upper limit).
GCN Circular #4772
C. MacLeod, A. Trotter, M. Nysewander, A. LaCluyze, D. Reichart, J. Harvey, J. A. Crain, A. Foster, K. Ivarsen, J. Haislip, J. Kirschbrown, and J. Carpenter report on behalf of the UNC team of the FUN GRB collaboration:
Skynet observed the localization of GRB 060211B (Mateos et al., GCN 4739) with three of the 16-inch PROMPT telescopes at CTIO and with 14.5-inch TTT in Colorado beginning 9.3 hours after the burst:
```
Filter  Telescope  Start (UT)  Stop (UT)  Exposures   Total (hr)
B       PROMPT-2   01:08:23    04:41:04   141 x 80s   3.13
r'      PROMPT-4   01:08:26    04:41:08   84  x 80s   1.87
I       PROMPT-1   01:08:23    04:41:11   140 x 80s   3.11
i'      PROMPT-4   02:34:32    04:00:09   56  x 80s   1.24
Green*  TTT        05:26:17    06:49:00   18 x 160s   0.80
Blue    TTT        06:51:41    07:44:41   12 x 160s   0.53
```
* Approximates V band
No new source is found to I > 20.5 mag (3 sigma; calibrated to five USNO-B1.0 stars).
GCN Circular #4778
P. Boyd (GSFC), S. Mateos (U Leicester) and F. Marshall (GSFC) on behalf of the Swift/UVOT team report:
The Swift/UVOT began observing the field of GRB 060211B at 15:56:39 UT on 2006-02-11, approximately 83 s after the BAT trigger (Mateos et al., GCN 4739). No source is detected in the refined XRT error circle (Page et al., GCN 4745) in the initial V finding chart, nor the summed images down to the following 3-sigma magnitude upper limits:
```
Filter  T_range(s)      Exp(s)  3sigUL(mag)


V       83-283          200     19.4
V       83-7768         869     20.5
B       290-7213        718     21.4
U       615-6955        301     20.4
UVW1    591-8168        550     20.8
UVM2    567-7972        490     20.8
UVW2    519-7604        278     21.2
White   494-7359        236     20.7
```
Reported times are in seconds since the BAT trigger. These magnitudes are uncorrected for the expected Galactic extinction corresponding to E(B-V) = 0.407.
GCN Circular #4925
D. Sharapov (MAO, and NOT, La Palma), M. Ibrahimov (MAO) and A. Pozanenko (IKI), on behalf of larger GRB follow up collaboration report:
We observed GRB 060211B (Mateos et al., GCN 4739; Tueller et al., GCN 4747) with 1.5m telescope of Maidanak Astronomical Observatory in R-band on Feb. 20 (UT) 16:16 - 16:50 (Salyamov et al., GCN 4744). In combined image we marginally detect two objects within refined XRT error circle Page et al. (GCN 4745):
```
id1:  RA(J2000) =  05:00:17.11
        Dec     = +14:57:01.06

id2:  RA(J2000) =  05:00:17.19
       Dec      = +14:56:55.74

Mid. time,   Exp.,  id1,         id2,       Limit,  Seeing
 (UT)         (s)

Feb.11.6895  6x300  22.1 +/-0.3  22.3 +/-0.3  22.1  ~1.3"
```
The photometry and astrometry is based on USNO B1.0. The both objects are not detectable in separate images, in particular in the first image obtained starting 20.7 minutes from burst onset.
Combined image can be found in http://grb.rssi.ru/GRB060211b/grb060211b_AZT22R.jpg

Back to JG's homepage

Jochen Greiner, last update: 27-Mar-2006 [Disclaimer]