Gamma-ray Burst 110210A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 09:57:58 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     445141,   Seg_Num: 0
GRB_RA:           13.077d {+00h 52m 19s} (J2000),
                  13.222d {+00h 52m 53s} (current),
                  12.429d {+00h 49m 43s} (1950)
GRB_DEC:          +7.792d {+07d 47' 30"} (J2000),
                  +7.852d {+07d 51' 07"} (current),
                  +7.520d {+07d 31' 13"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1416 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        15602 TJD;    41 DOY;   11/02/10
GRB_TIME:        35561.35 SOD {09:52:41.35} UT
GRB_PHI:          -7.88 [deg]
GRB_THETA:        29.77 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -3  +0  +0 -59  +0 
SUN_POSTN:       323.69d {+21h 34m 45s}  -14.40d {-14d 23' 52"}
SUN_DIST:         53.93 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.58d {+02h 30m 19s}  +18.95d {+18d 57' 02"}
MOON_DIST:        26.12 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.31,-55.08 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       15.06,  2.02 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 17.15,-19.68 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 09:58:36 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     445141,   Seg_Num: 0
GRB_RA:           13.0574d {+00h 52m 13.77s} (J2000),
                  13.2017d {+00h 52m 48.40s} (current),
                  12.4086d {+00h 49m 38.07s} (1950)
GRB_DEC:          +7.7799d {+07d 46' 47.6"} (J2000),
                  +7.8401d {+07d 50' 24.4"} (current),
                  +7.5083d {+07d 30' 30.0"} (1950)
GRB_ERROR:       5.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       2.16e-09 [erg/cm2/sec]
GRB_SIGNIF:      8.77 [sigma]
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35697.83 SOD {09:54:57.83} UT,   136.5 [sec] since BAT Trigger Time
TAM[0-3]:        327.65 237.19 261.51 243.37
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       323.69d {+21h 34m 45s}  -14.40d {-14d 23' 51"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.58d {+02h 30m 20s}  +18.95d {+18d 57' 07"}
MOON_DIST:        26.14 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.27,-55.09 [deg] galactic lon,lat of the burst
ECL_COORDS:       15.03,  2.01 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.37 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 09:58:46 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     445141,   Seg_Num: 0
GRB_RA:           13.0574d {+00h 52m 13.7s} (J2000),
                  13.2017d {+00h 52m 48.4s} (current),
                  12.4086d {+00h 49m 38.0s} (1950)
GRB_DEC:          +7.7799d {+07d 46' 47.6"} (J2000),
                  +7.8401d {+07d 50' 24.4"} (current),
                  +7.5083d {+07d 30' 30.0"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       77 [cnts]
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35697.83 SOD {09:54:57.83} UT,   136.5 [sec] since BAT Trigger Time
CENTROID_X:      296.37,  raw= 296  [pixels]
CENTROID_Y:      308.18,  raw= 308  [pixels]
ROLL:            245.72 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   24.01
GRB_POS_XRT_Z:   -13.96
IMAGE_URL:       sw00445141000msxps_rw.img
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 51"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.58d {+02h 30m 20s}  +18.95d {+18d 57' 08"}
MOON_DIST:        26.15 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.27,-55.09 [deg] galactic lon,lat of the burst
ECL_COORDS:       15.03,  2.01 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 09:58:52 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     445141,   Seg_Num: 0
GRB_RA:           13.0574d {+00h 52m 13.7s} (J2000),
                  13.2017d {+00h 52m 48.4s} (current),
                  12.4086d {+00h 49m 38.0s} (1950)
GRB_DEC:          +7.7799d {+07d 46' 47.6"} (J2000),
                  +7.8401d {+07d 50' 24.4"} (current),
                  +7.5083d {+07d 30' 30.0"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       77 [cnts]
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35697.83 SOD {09:54:57.83} UT,   136.5 [sec] since BAT Trigger Time
CENTROID_X:      296.37,  raw= 296  [pixels]
CENTROID_Y:      308.18,  raw= 308  [pixels]
ROLL:            245.72 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   24.01
GRB_POS_XRT_Z:   -13.96
IMAGE_URL:       sw00445141000msxps_rw.img
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 51"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.59d {+02h 30m 21s}  +18.95d {+18d 57' 09"}
MOON_DIST:        26.15 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.27,-55.09 [deg] galactic lon,lat of the burst
ECL_COORDS:       15.03,  2.01 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 09:59:11 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     445141,   Seg_Num: 0
GRB_RA:           13.077d {+00h 52m 19s} (J2000),
                  13.222d {+00h 52m 53s} (current),
                  12.429d {+00h 49m 43s} (1950)
GRB_DEC:          +7.792d {+07d 47' 30"} (J2000),
                  +7.852d {+07d 51' 07"} (current),
                  +7.520d {+07d 31' 13"} (1950)
GRB_DATE:        15602 TJD;    41 DOY;   11/02/10
GRB_TIME:        35561.35 SOD {09:52:41.35} UT
TRIGGER_INDEX:   20000
GRB_PHI:          -7.88 [deg]
GRB_THETA:        29.77 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
LC_URL:          sw00445141000msb.lc
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 51"}
SUN_DIST:         53.93 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.59d {+02h 30m 21s}  +18.95d {+18d 57' 11"}
MOON_DIST:        26.13 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.31,-55.08 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       15.06,  2.02 [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 = 17.15,-19.68 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:00:53 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.058d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.788d {+07d 47' 16"} (J2000)
POINT_ROLL:      245.717d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35705.58 SOD {09:55:05.58} UT,   144.2 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        7.763
N_STARS:         11
X_OFFSET:        352 [pixels]
Y_OFFSET:        600 [pixels]
X_MAX:           1311 [pixels]
Y_MAX:           1559 [pixels]
DET_THRESH:      24
PHOTO_THRESH:    15
SL_URL:          sw00445141000msufc0144.fits
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 49"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.60d {+02h 30m 25s}  +18.96d {+18d 57' 25"}
MOON_DIST:        26.16 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:01:12 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.058d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.788d {+07d 47' 16"} (J2000)
POINT_ROLL:      245.717d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35705.58 SOD {09:55:05.58} UT,   144.2 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        7.763
N_STARS:         11
X_OFFSET:        352 [pixels]
Y_OFFSET:        600 [pixels]
X_MAX:           1311 [pixels]
Y_MAX:           1559 [pixels]
DET_THRESH:      24
PHOTO_THRESH:    15
SL_URL:          sw00445141000msufc0144.fits
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 49"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.61d {+02h 30m 25s}  +18.96d {+18d 57' 27"}
MOON_DIST:        26.16 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:04:11 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.058d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.788d {+07d 47' 16"} (J2000)
ROLL:            245.717d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35705.58 SOD {09:55:05.58} UT,   144.2 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     319024512
X_OFFSET:        806 [pixels]
Y_OFFSET:        831 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       966
Y_GRB_POS:       991
BINNING_INDEX:   1
IM_URL:          sw00445141000msuni0151.fits
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 47"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.63d {+02h 30m 31s}  +18.96d {+18d 57' 51"}
MOON_DIST:        26.19 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:04:29 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.058d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.788d {+07d 47' 16"} (J2000)
ROLL:            245.717d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35705.58 SOD {09:55:05.58} UT,   144.2 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     319024512
X_OFFSET:        806 [pixels]
Y_OFFSET:        831 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       966
Y_GRB_POS:       991
BINNING_INDEX:   1
IM_URL:          sw00445141000msuni0151.fits
SUN_POSTN:       323.69d {+21h 34m 46s}  -14.40d {-14d 23' 47"}
SUN_DIST:         53.91 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.63d {+02h 30m 32s}  +18.96d {+18d 57' 53"}
MOON_DIST:        26.19 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.08 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:08:59 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
POINT_ROLL:      245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35863.62 SOD {09:57:43.62} UT,   302.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        2.333
N_STARS:         10
X_OFFSET:        486 [pixels]
Y_OFFSET:        511 [pixels]
X_MAX:           1445 [pixels]
Y_MAX:           1470 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00445141000msufc0302.fits
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 43"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.67d {+02h 30m 41s}  +18.97d {+18d 58' 28"}
MOON_DIST:        26.23 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:09:19 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
POINT_ROLL:      245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35863.62 SOD {09:57:43.62} UT,   302.3 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        2.333
N_STARS:         10
X_OFFSET:        486 [pixels]
Y_OFFSET:        511 [pixels]
X_MAX:           1445 [pixels]
Y_MAX:           1470 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00445141000msufc0302.fits
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 43"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.68d {+02h 30m 42s}  +18.98d {+18d 58' 31"}
MOON_DIST:        26.23 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:10:25 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
ROLL:            245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35863.62 SOD {09:57:43.62} UT,   302.3 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     319024670
X_OFFSET:        806 [pixels]
Y_OFFSET:        831 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       966
Y_GRB_POS:       991
BINNING_INDEX:   1
IM_URL:          sw00445141000msuni0309.fits
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 42"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.68d {+02h 30m 44s}  +18.98d {+18d 58' 40"}
MOON_DIST:        26.24 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:10:43 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
ROLL:            245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35863.62 SOD {09:57:43.62} UT,   302.3 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     319024670
X_OFFSET:        806 [pixels]
Y_OFFSET:        831 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       966
Y_GRB_POS:       991
BINNING_INDEX:   1
IM_URL:          sw00445141000msuni0309.fits
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 41"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.69d {+02h 30m 45s}  +18.98d {+18d 58' 42"}
MOON_DIST:        26.24 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [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 Circular #11687
V. D'Elia (ASDC), W. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester), S. Campana (INAF-OAB), J. R. Cummings (NASA/UMBC), P. A. Evans (U Leicester), J. M. Gelbord (PSU), B. Gendre (ASDC), C. Guidorzi (U Ferrara), S. T. Holland (CRESST/USRA/GSFC), C. B. Markwardt (NASA/GSFC), P. T. O'Brien (U Leicester), J. P. Osborne (U Leicester), C. Pagani (U Leicester), K. L. Page (U Leicester), M. Perri (ASDC), M. H. Siegel (PSU), R. L. C. Starling (U Leicester) and G. Stratta (ASDC) report on behalf of the Swift Team:
At 09:52:41 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 110210A (trigger=445141). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 13.077, +7.792 which is
```
   RA(J2000) = 00h 52m 19s
   Dec(J2000) = +07d 47' 30"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve did not show a significant peak, which is typical for an image trigger.
The XRT began observing the field at 09:54:57.8 UT, 136.5 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source located at RA, Dec 13.05706, 7.78019 which is equivalent to:
```
   RA(J2000)  = 00h 52m 13.69s
   Dec(J2000) = +07d 46' 48.7"
```
with an uncertainty of 4.1 arcseconds (radius, 90% containment). This location is 83 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 http://www.swift.ac.uk/sper. We cannot determine whether the source is fading at the present time.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 5.28 x 10^20 cm^-2 (Kalberla et al. 2005).
The initial flux in the 2.5 s image was 2.16e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 144 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 0.06.
Burst Advocate for this burst is V. D'Elia (delia AT asdc.asi.it). 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/too.html.)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:15:12 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
POINT_ROLL:      245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  36419.18 SOD {10:06:59.18} UT,   857.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        7.648
N_STARS:         32
X_OFFSET:        246 [pixels]
Y_OFFSET:        271 [pixels]
X_MAX:           1685 [pixels]
Y_MAX:           1710 [pixels]
DET_THRESH:      24
PHOTO_THRESH:    15
SL_URL:          sw00445141000msufc0857.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.39d {-14d 23' 38"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.73d {+02h 30m 54s}  +18.99d {+18d 59' 17"}
MOON_DIST:        26.28 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:15:37 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     445141,   Seg_Num: 0
GRB_RA:           13.0565d {+00h 52m 13.55s} (J2000),
                  13.2008d {+00h 52m 48.18s} (current),
                  12.4077d {+00h 49m 37.85s} (1950)
GRB_DEC:          +7.7793d {+07d 46' 45.4"} (J2000),
                  +7.8395d {+07d 50' 22.3"} (current),
                  +7.5077d {+07d 30' 27.8"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  35936.00 SOD {09:58:56.00} UT,   374.7 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.39d {-14d 23' 38"}
SUN_DIST:         53.89 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.73d {+02h 30m 55s}  +18.99d {+18d 59' 20"}
MOON_DIST:        26.29 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.27,-55.09 [deg] galactic lon,lat of the burst
ECL_COORDS:       15.03,  2.01 [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:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:15:32 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
POINT_ROLL:      245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  36419.18 SOD {10:06:59.18} UT,   857.8 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        7.648
N_STARS:         32
X_OFFSET:        246 [pixels]
Y_OFFSET:        271 [pixels]
X_MAX:           1685 [pixels]
Y_MAX:           1710 [pixels]
DET_THRESH:      24
PHOTO_THRESH:    15
SL_URL:          sw00445141000msufc0857.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.39d {-14d 23' 38"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.73d {+02h 30m 55s}  +18.99d {+18d 59' 20"}
MOON_DIST:        26.28 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Feb 11 10:16:47 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
ROLL:            245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  36419.18 SOD {10:06:59.18} UT,   857.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     319025225
X_OFFSET:        805 [pixels]
Y_OFFSET:        830 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       965
Y_GRB_POS:       990
BINNING_INDEX:   1
IM_URL:          sw00445141000msuni0864.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.39d {-14d 23' 37"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.74d {+02h 30m 57s}  +18.99d {+18d 59' 29"}
MOON_DIST:        26.29 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [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:     Thu 10 Feb 11 10:17:03 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     445141,   Seg_Num: 0
POINT_RA:         13.059d {+00h 52m 14s} (J2000)
POINT_DEC:        +7.786d {+07d 47' 10"} (J2000)
ROLL:            245.718d
IMG_START_DATE:  15602 TJD;    41 DOY;   11/02/10
IMG_START_TIME:  36419.18 SOD {10:06:59.18} UT,   857.8 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     319025225
X_OFFSET:        805 [pixels]
Y_OFFSET:        830 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       965
Y_GRB_POS:       990
BINNING_INDEX:   1
IM_URL:          sw00445141000msuni0864.fits
SUN_POSTN:       323.70d {+21h 34m 49s}  -14.39d {-14d 23' 36"}
SUN_DIST:         53.90 [deg]   Sun_angle= -3.3 [hr] (East of Sun)
MOON_POSTN:       37.74d {+02h 30m 58s}  +18.99d {+18d 59' 32"}
MOON_DIST:        26.29 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      123.28,-55.09 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       15.04,  2.02 [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 #11689
M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team.
Using 1592 s of XRT Photon Counting mode data and 1 UVOT images for GRB 110210A, 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 = 13.05659, +7.77968 which is equivalent to:
```
RA (J2000): 00h 52m 13.58s
Dec (J2000): +07d 46' 46.9"
```
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 #11691
M. Stamatikos (OSU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), V. D'Elia (ASDC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team):
Using the data set from T-239 to T+963 sec from recent telemetry downlinks, we report further analysis of BAT GRB 110210A (trigger #445141) (D'Elia, et al., GCN Circ. 11687). The BAT ground-calculated position is RA, Dec = 13.108, 7.778 deg, which is
```
   RA(J2000)  =  00h 52m 25.9s 
   Dec(J2000) = +07d 46' 39.5" 
```
with an uncertainty of 3.2 arcmin, (radius, sys+stat, 90% containment). The partial coding was 83%.
The mask-weighted light curve shows the emission starting at ~T-100 sec, peaking at ~T+50 sec, and ending at ~T+150 sec. T90 (15-350 keV) is 233 +- 60 sec (estimated error including systematics).
The time-averaged spectrum from T-102.9 to T+153.6 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.73 +- 0.29. The fluence in the 15-150 keV band is 9.6 +- 1.9 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T-54.44 sec in the 15-150 keV band is 0.3 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/445141/BA/
GCN Circular #11693
G. Stratta, V. D'Elia (ASDC) report on behalf of the Swift-XRT team:
We have analysed 5.6 ks of XRT data for GRB 110210A (D'Elia et al. GCN Circ. 11687), from 126 s to 19.3 ks after the BAT trigger. The data comprise 226 s in Windowed Timing (WT) mode (the first 9 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 Goad et al. (GCN. Circ 11689). the light curve is consistent with a constant source of mean count rate 4.5e+01 ct/sec. A power-law fit gives an index of 0.0 (+/-0.3).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 3.10 (+0.09, -0.08). The best-fitting absorption column is 2.16 (+0.17, -0.16) x 10^21 cm^-2, in excess of the Galactic value of 5.3 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 2.16 (+0.15, -0.19) and a best-fitting absorption column of 7.5 (+4.5, -1.9) x 10^20 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.6 x 10^-11 (4.6 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     7.5 (+4.5, -1.9) x 10^20 cm^-2
Galactic foreground: 5.3 x 10^20 cm^-2
Excess significance: 6.4 sigma
Photon index:	     2.16 (+0.15, -0.19)
```
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00445141.
This circular is an official product of the Swift-XRT team.
GCN Circular #11694
G. Greco (INAF-Astronomical Observatory of BOLOGNA), C. Bartolini, A. Guarnieri, A. Piccioni (University of Bologna), G. Pizzichini (INAF/IASF-Bologna), G. Gavazzi (University of Milano-Bicocca) and R. Gualandi (INAF-Astronomical Observatory of BOLOGNA) report:
We observed the location of the GRB 110210A (D'Elia, et al., GCN Circ. 11687) with the 152 cm Cassini Telescope located in Loiano, Italy, equipped with BFOSC.
Two R-band observations (2x900 sec) were obtained during twilight at high airmass. The mean time was February 10.756 UT (0.345 day after the burst).
No source was detected inside the XRT error circle (Goad, et al., GCN. Circ. 11689) in the coadded frame. The limiting magnitude is R = 18 based on the USNO-A2 catalog and not corrected for the Galactic extinction.
This message can be cited.
GCN Circular #11734
Bret L. Little, Ben Boizelle, Kimberly Bates, Michael Abbott, and J. Ward Moody report for Brigham Young University=92s ROVOR team:
We report our observations in the field of GRB 110210A (Swift trigger 445141, D'Elia et al., GCN 11687) on Feb 11 beginning 16.25 hours post-bu= rst at 02:09:18 UT. The 0.41m ROVOR telescope in Delta, Utah, automatically imaged this location upon power up.
We combined sixteen 120 second exposures, four each in BVRI. No detection of an afterglow inside the XRT error circle (Goad, et al., GCN. Circ. 11689) was obtained after stacking the images. An upper limit of 20.0 =B1 0.5 mag in R2 was found by comparing against USNOB values.
GCN Circular #11737
A. Volnova (SAI MSU), Korobtsev (ISTP), E. Klunko (ISTP), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration report:
We observed the field of the Swift GRB 110210A (D'Elia et al., GCN 11687) with AZT-33IK telescope of Sayan observatory (Mondy) on Feb. 10 between (UT) 11:10 - 12:28 under poor weather conditions and mean seeing of about ~2.3". We took several series with exposure of 60 seconds in R-band. In a stacked image we do not detect any source in enhanced XRT error circle (Goad et al. GCN 11689). The upper limit (3 sigma) of the stacked image based on SDSS field star J005218.01+0746740.1 (assuming R = 18.73) is the following:
```
T0+      Filter,   Exposure,      OT mag.,  UpperLimit
(mid, d)              (s)

0.08122  R      69x60               n/d           19.4
```

GCN Circular #11738
The Swift/UVOT began settled observations of the field of GRB 110210A 144 s after the BAT trigger (D'Elia et al., GCN Circ. 11687). No optical afterglow consistent with the enhanced XRT position (Goad et al., GCN Circ. 11689) is detected in the initial UVOT finding charts nor in the summed exposures in all filters. (Poole et al. 2008, MNRAS, 383, 627) for the finding chart (FC) exposures and subsequent exposures are:

Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC           144          294          147         >20.1
u_FC               302          552          246         >19.4
white              144         7686          746         >21.0
v                  633        13497         1238         >19.7
b                  558         7481          526         >20.1
u                  302         7276          756         >19.9
w1                 682         7072          294         >19.5
m2                 660        18180          839         >20.6
w2                 608        12588         1291         >21.0

The values quoted above are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.06 in the direction of the burst (Schlegel et al. 1998).

GCN Report 319.1
GCN_Report 319.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_319_1.pdf by V. D Elia at ASDC titled: "Swift Observations of GRB 110210A"

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Jochen Greiner, last update: 16-Feb-2011 [Disclaimer]