Gamma-ray Burst 060210

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 04:59:15 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     180977,   Seg_Num: 0
GRB_RA:           57.730d {+03h 50m 55s} (J2000),
                  57.823d {+03h 51m 17s} (current),
                  56.970d {+03h 47m 53s} (1950)
GRB_DEC:         +27.026d {+27d 01' 33"} (J2000),
                 +27.044d {+27d 02' 38"} (current),
                 +26.875d {+26d 52' 32"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5140 [cnts]    Image_Peak=204 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   155     E_range: 50-350 keV
BKG_INTEN:       26724 [cnts]
BKG_TIME:        17910.99 SOD {04:58:30.99} UT
BKG_DUR:         8 [sec]
GRB_DATE:        13776 TJD;    41 DOY;   06/02/10
GRB_TIME:        17929.80 SOD {04:58:49.80} UT
GRB_PHI:         178.62 [deg]
GRB_THETA:        44.14 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     27.58 [sigma]
IMAGE_SIGNIF:    8.42 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +3 +10  +0  +0 +17  +1 
SUN_POSTN:       323.69d {+21h 34m 47s}  -14.40d {-14d 23' 47"}
SUN_DIST:        100.09 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.74d {+07h 22m 58s}  +27.13d {+27d 07' 33"}
MOON_DIST:        46.74 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.17,-20.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       61.39,  6.74 [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 = 249.59,11.86 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:00:56 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     180977,   Seg_Num: 0
GRB_RA:           57.7384d {+03h 50m 57.2s} (J2000),
                  57.8314d {+03h 51m 19.5s} (current),
                  56.9787d {+03h 47m 54.8s} (1950)
GRB_DEC:         +27.0273d {+27d 01' 38.2"} (J2000),
                 +27.0454d {+27d 02' 43.5"} (current),
                 +26.8771d {+26d 52' 37.6"} (1950)
GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       140 [cnts]
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18024.75 SOD {05:00:24.75} UT,   95.0 [sec] since BAT Trigger Time
CENTROID_X:      335.83,  raw= 336  [pixels]
CENTROID_Y:      295.97,  raw= 296  [pixels]
ROLL:            258.81 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -6.65
GRB_POS_XRT_Z:   81.41
IMAGE_URL:       sw00180977000msxim.img
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 45"}
SUN_DIST:        100.09 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.76d {+07h 23m 02s}  +27.12d {+27d 07' 25"}
MOON_DIST:        46.75 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.17,-20.77 [deg] galactic lon,lat of the burst
ECL_COORDS:       61.39,  6.74 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:00:55 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     180977,   Seg_Num: 0
GRB_RA:           57.7384d {+03h 50m 57.2s} (J2000),
                  57.8314d {+03h 51m 19.5s} (current),
                  56.9787d {+03h 47m 54.8s} (1950)
GRB_DEC:         +27.0273d {+27d 01' 38.2"} (J2000),
                 +27.0454d {+27d 02' 43.5"} (current),
                 +26.8771d {+26d 52' 37.6"} (1950)
GRB_ERROR:       5.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       4.61e-09 [erg/cm2/sec]
GRB_SIGNIF:      11.83 [sigma]
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18024.75 SOD {05:00:24.75} UT,   95.0 [sec] since BAT Trigger Time
TAM[0-3]:        327.63 237.21 261.30 243.21
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 45"}
SUN_DIST:        100.09 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.76d {+07h 23m 02s}  +27.12d {+27d 07' 25"}
MOON_DIST:        46.75 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.17,-20.77 [deg] galactic lon,lat of the burst
ECL_COORDS:       61.39,  6.74 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
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 examples at:  
COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:01:43 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     180977,   Seg_Num: 0
GRB_RA:           57.7384d {+03h 50m 57.2s} (J2000),
                  57.8314d {+03h 51m 19.5s} (current),
                  56.9787d {+03h 47m 54.8s} (1950)
GRB_DEC:         +27.0273d {+27d 01' 38.2"} (J2000),
                 +27.0454d {+27d 02' 43.5"} (current),
                 +26.8771d {+26d 52' 37.6"} (1950)
GRB_ERROR:       5.4 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       140 [cnts]
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18024.75 SOD {05:00:24.75} UT,   95.0 [sec] since BAT Trigger Time
CENTROID_X:      335.83,  raw= 336  [pixels]
CENTROID_Y:      295.97,  raw= 296  [pixels]
ROLL:            258.81 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -6.65
GRB_POS_XRT_Z:   81.41
IMAGE_URL:       sw00180977000msxim.img
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 45"}
SUN_DIST:        100.09 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.76d {+07h 23m 03s}  +27.12d {+27d 07' 21"}
MOON_DIST:        46.76 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.17,-20.77 [deg] galactic lon,lat of the burst
ECL_COORDS:       61.39,  6.74 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:02:41 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     180977,   Seg_Num: 0
GRB_RA:           57.730d {+03h 50m 55s} (J2000),
                  57.823d {+03h 51m 17s} (current),
                  56.970d {+03h 47m 53s} (1950)
GRB_DEC:         +27.026d {+27d 01' 33"} (J2000),
                 +27.044d {+27d 02' 38"} (current),
                 +26.875d {+26d 52' 32"} (1950)
GRB_DATE:        13776 TJD;    41 DOY;   06/02/10
GRB_TIME:        17929.80 SOD {04:58:49.80} UT
TRIGGER_INDEX:   155
GRB_PHI:         178.62 [deg]
GRB_THETA:        44.14 [deg]
DELTA_TIME:      39.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     27.58 [sigma]
IMAGE_SIGNIF:    8.42 [sigma]
LC_URL:          sw00180977000msb.lc
SUN_POSTN:       323.70d {+21h 34m 47s}  -14.40d {-14d 23' 44"}
SUN_DIST:        100.08 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.77d {+07h 23m 05s}  +27.12d {+27d 07' 16"}
MOON_DIST:        46.77 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.17,-20.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       61.39,  6.74 [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 = 249.59,11.86 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:04:42 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.021d {+27d 01' 15"} (J2000)
POINT_ROLL:      258.813d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18027.82 SOD {05:00:27.82} UT,   98.0 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.270
N_STARS:         101
X_OFFSET:        333 [pixels]
Y_OFFSET:        630 [pixels]
X_MAX:           1292 [pixels]
Y_MAX:           1589 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    4
SL_URL:          sw00180977000msufc0098.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.40d {-14d 23' 42"}
SUN_DIST:        100.07 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.79d {+07h 23m 10s}  +27.12d {+27d 07' 06"}
MOON_DIST:        46.80 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.79 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.73 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:05:31 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.021d {+27d 01' 15"} (J2000)
POINT_ROLL:      258.813d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18027.82 SOD {05:00:27.82} UT,   98.0 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.270
N_STARS:         101
X_OFFSET:        333 [pixels]
Y_OFFSET:        630 [pixels]
X_MAX:           1292 [pixels]
Y_MAX:           1589 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    4
SL_URL:          sw00180977000msufc0098.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.40d {-14d 23' 42"}
SUN_DIST:        100.07 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.80d {+07h 23m 12s}  +27.12d {+27d 07' 02"}
MOON_DIST:        46.81 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.79 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.73 [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:     Fri 10 Feb 06 05:06:00 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.021d {+27d 01' 15"} (J2000)
ROLL:            258.813d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18027.82 SOD {05:00:27.82} UT,   98.0 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     161240428
X_OFFSET:        653 [pixels]
Y_OFFSET:        950 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       813
Y_GRB_POS:       1110
BINNING_INDEX:   1
IM_URL:          sw00180977000msuni0098.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.40d {-14d 23' 41"}
SUN_DIST:        100.07 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.80d {+07h 23m 13s}  +27.12d {+27d 06' 60"}
MOON_DIST:        46.81 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.79 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.73 [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:     Fri 10 Feb 06 05:07:18 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.021d {+27d 01' 15"} (J2000)
ROLL:            258.813d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18027.82 SOD {05:00:27.82} UT,   98.0 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     161240428
X_OFFSET:        653 [pixels]
Y_OFFSET:        950 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       813
Y_GRB_POS:       1110
BINNING_INDEX:   1
IM_URL:          sw00180977000msuni0098.fits
SUN_POSTN:       323.70d {+21h 34m 48s}  -14.39d {-14d 23' 40"}
SUN_DIST:        100.07 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.82d {+07h 23m 16s}  +27.11d {+27d 06' 53"}
MOON_DIST:        46.83 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.79 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.73 [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:     Fri 10 Feb 06 05:10:55 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.023d {+27d 01' 24"} (J2000)
POINT_ROLL:      258.814d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18234.68 SOD {05:03:54.68} UT,   304.9 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        1.998
N_STARS:         136
X_OFFSET:        333 [pixels]
Y_OFFSET:        630 [pixels]
X_MAX:           1292 [pixels]
Y_MAX:           1589 [pixels]
DET_THRESH:      12
PHOTO_THRESH:    6
SL_URL:          sw00180977000msufc0304.fits
SUN_POSTN:       323.70d {+21h 34m 49s}  -14.39d {-14d 23' 37"}
SUN_DIST:        100.06 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.85d {+07h 23m 24s}  +27.11d {+27d 06' 36"}
MOON_DIST:        46.86 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.78 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.74 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 10 Feb 06 05:11:45 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.023d {+27d 01' 24"} (J2000)
POINT_ROLL:      258.814d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18234.68 SOD {05:03:54.68} UT,   304.9 [sec] since BAT Trigger Time
FILTER:          9, B
BKG_MEAN:        1.998
N_STARS:         136
X_OFFSET:        333 [pixels]
Y_OFFSET:        630 [pixels]
X_MAX:           1292 [pixels]
Y_MAX:           1589 [pixels]
DET_THRESH:      12
PHOTO_THRESH:    6
SL_URL:          sw00180977000msufc0304.fits
SUN_POSTN:       323.70d {+21h 34m 49s}  -14.39d {-14d 23' 37"}
SUN_DIST:        100.06 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.86d {+07h 23m 26s}  +27.11d {+27d 06' 31"}
MOON_DIST:        46.86 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.78 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.74 [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:     Fri 10 Feb 06 05:12:15 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.023d {+27d 01' 24"} (J2000)
ROLL:            258.814d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18234.68 SOD {05:03:54.68} UT,   304.9 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     161240635
X_OFFSET:        653 [pixels]
Y_OFFSET:        950 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       813
Y_GRB_POS:       1110
BINNING_INDEX:   1
IM_URL:          sw00180977000msuni0304.fits
SUN_POSTN:       323.70d {+21h 34m 49s}  -14.39d {-14d 23' 36"}
SUN_DIST:        100.06 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.86d {+07h 23m 27s}  +27.11d {+27d 06' 29"}
MOON_DIST:        46.87 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.78 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.74 [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:     Fri 10 Feb 06 05:13:31 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     180977,   Seg_Num: 0
POINT_RA:         57.714d {+03h 50m 51s} (J2000)
POINT_DEC:       +27.023d {+27d 01' 24"} (J2000)
ROLL:            258.814d
IMG_START_DATE:  13776 TJD;    41 DOY;   06/02/10
IMG_START_TIME:  18234.68 SOD {05:03:54.68} UT,   304.9 [sec] since BAT Trigger Time
FILTER:          9, B
EXPOSURE_ID:     161240635
X_OFFSET:        653 [pixels]
Y_OFFSET:        950 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       813
Y_GRB_POS:       1110
BINNING_INDEX:   1
IM_URL:          sw00180977000msuni0304.fits
SUN_POSTN:       323.70d {+21h 34m 49s}  -14.39d {-14d 23' 35"}
SUN_DIST:        100.06 [deg]   Sun_angle= -6.3 [hr] (East of Sun)
MOON_POSTN:      110.87d {+07h 23m 30s}  +27.11d {+27d 06' 23"}
MOON_DIST:        46.88 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      165.16,-20.78 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       61.37,  6.74 [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 #4723
D.B. Fox (Penn State) and S.B. Cenko (Caltech) report on behalf of a larger collaboration:
"We have imaged the XRT localization region for GRB060210 (Swift Trigger #180977) with the robotic Palomar 60-inch telescope, in two 60-second exposures beginning roughly 5 minutes after the BAT trigger. We identify a single point-like, bright, stationary source consistent with the XRT position, at coordinates:
R.A. 03:50:57.41, Dec +27:01:34.4 (J2000)
with a coordinate uncertainty of less than 2" in each axis. The estimated brightness of the transient at t+5.5 minutes is R=18.3 +/- 0.1 mag by reference to USNO B-1.0 catalog magnitudes of stars in the field."
GCN Circular #4724
A. Beardmore (U Leicester), S. Barthelmy (GSFC), P. Boyd (GSFC), D. Burrows (PSU), N. Gehrels (GSFC), C. Markwardt (GSFC/UMD), F. Marshall (GSFC), J. Osborne (U Leicester), D. Palmer (LANL), P. Schady (PSU/UCL-MSSL) on behalf of the Swift team:
At 04:58:50 UT, Swift-BAT triggered and located GRB 060210 (trigger=180977). The spacecraft slewed immediately. The BAT on-board calculated location is RA,Dec 57.730d,+27.026d {03h 50m 55s,+27d 01' 33"} (J2000), with an uncertainty of 3 arcmin (radius, 90% containment, stat+sys). The BAT light curve shows a two-peak structure with a total duration of ~5 sec. The peak count rate was ~4500 counts/sec (15-350 keV), at ~1 seconds after the trigger.
The XRT began observing the field at 05:00:25 UT, 95 seconds after the BAT trigger. XRT found a variable, uncatalogued X-ray source located at RA(J2000) = +03h 50m 57.2s, Dec(J2000) = +27d 01' 38.2", with an estimated uncertainty of 5.4 arcseconds (90% confidence radius). This location is 27 arcseconds from the BAT on-board position, within the BAT error circle. The initial flux in the 2.50s image was 4.6e-09 erg/cm2/s (0.2-10 keV).
UVOT took a finding chart exposure of 200 seconds with the V filter starting 99 seconds 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 18.0 mag. No correction has been made for the expected extinction of about 0.3 magnitudes.
GCN Circular #4725
W. Li, University of California, Berkeley, on behalf of the KAIT GRB team, report:
The robotic 0.76-m Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory observed GRB060210 detected with Swift (Trigger 180977). We identied an new object at the following position in an unfiltered 15s image started at 04:59:53 UT (63.2s after the burst):
RA = 03:50:57.35 Dec = +27:01:34.1 (J2000.)
the candidate afterglow is at mag 18.1 when calibrated to USNO B1.0 catalog. Further observations are ongoing.
GCN Circular #4726
C.G. Mundell, A. Melandri, A. Gomboc, C. Guidorzi, I. A. Steele, C.J. Mottram, A. Monfardini, R.J. Smith, M.F. Bode (Liverpool JMU), E. Rol, P. O'Brien, N. Bannister (U. Leicester) report:
"The 2-m Faulkes Telescope North robotically followed up GRB060210 (SWIFT trigger 180977) 4.18 min after the GRB trigger time. The automatic "detection mode" procedure detected an uncatalogued candidate at:
```
RA(J2000):  03:50:57.37   
Dec(2000): +27:01:34.40    
```
(positional uncertaintly 0.5")
with magnitude R = 18.1 mag (wrt USNOB1).
This source is coincident with that of Fox et al. (GCN 4723) and Li et al. (GCN 4725) and found to be fading, thus confirming it as the afterglow.
Observations and analysis are ongoing.
This message may be cited"
GCN Circular #4727
W. Li, University of California, Berkeley, on behalf of the KAIT GRB team, report:
We report further analysis of the KAIT observations of GRB 060210 between 1 to 48 minutes after the burst. The optical afterglow showed an interesting evolution: it was nearly flat (with unfiltered mag of about 18.1) between t = 1 to 5 minutes, brightened to mag 17.7 at t = 9 minutes, then began a fast power-law decline between t = 10 to 48 minutes with an index of -1.05 +/- 0.05. A light curve for the optical afterglow is at http://astron.berkeley.edu/~weidong/grb060210.lc.gif
The figure showed both the unfiltered and I-band light curve of the OA, both calibrated to USNO B1.0 red magnitudes.
This message can be cited.
GCN Circular #4728
G. G. Williams (MMTO) and P. A. Milne (Steward Observatory), on behalf of the Super-LOTIS Collaboration, report:
The robotic 0.6-m Super-LOTIS telescope began observing the error box of GRB060210 (Swift Trigger 180977, GCN 4724) at 04:59:44.9 UT, 55 seconds after the burst. Our initial observations include 5 x 10s exposures, 5 x 20s exposures, and 30 x 60s exposures, all in the R-band. We do not detect the afterglow reported by Fox et al. (GCN 4723) and Li et al. (GCN 4725) in our earliest exposure to the following 5-sigma limiting magnitude using USNO-B1 stars:
```
t obs (UT)	exp t (s)	t-t_0 (s)	Limit
--------------------------------------------------------
04:59:44.9	10 		55.1 		R > 17.5
```
Additional multi-band observations and analysis including image stacking are ongoing.
GCN Circular #4729
A. Cucchiara (Penn State), D. B. Fox (Penn State), and E. Berger (Carnegie Observatories) report on behalf of a larger collaboration:
"We have observed the optical afterglow (Fox & Cenko, GCN 4723) of GRB 060210 (Beardmore et al., GCN 4724) with the GMOS instrument on Gemini-North. Examination of a reduced 1500-s spectrum of the afterglow reveals a strong continuum break at roughly 6000 Angstroms, with only intermittent transmission blueward of this wavelength and multiple strong absorption features to the red, including the NV 1239,1243 doublet, the CIV 1548,1550 doublet, and an array of Si transitions, at the common redshift of z=3.91. We propose this as the redshift of GRB 060210."
We acknowledge the rapid response effort of Gemini personnel that yielded these data, and in particular observer I. Song.
GCN Circular #4730
G. G. Williams (MMTO) and P. A. Milne (Steward Observatory), on behalf of the Super-LOTIS collaboration, report:
Further analysis of the 0.6-m Super-LOTIS observations (GCN 4728) of the error box of GRB060210 (GCN 4724) yield detections of the optical afterglow (GCN 4723 and GCN 4725) in the summed R-band data. The summed images include a stack of five 10s exposures and a stack of five 20s exposures. The following table lists the mid-time of the stacked exposures and the resulting photometry using USNO-B1 stars:
```
t_mid (UT)	exp_t		t_mid - t0 (s)		R
-----------------------------------------------------------------
05:00:24.3	5 x 10 s	94.5		R = 18.25 +- 0.29
05:02:14.5	5 x 20 s	204.7		R = 18.30 +- 0.21
```
Analysis is ongoing.
GCN Circular #4731
W. Zhou (BAO), C.S. Lin (NCU) Y. Urata (RIKEN), K.Y. Huang (NCU) and Y. Qiu (BAO) on behalf of RAFON report:
"The 0.8-m telescope at Xinglong Observatory, China and 1.0-m telescope at Lulin Observatory, Taiwan started to observe GRB 060210 afterglow (Fox et al. # 4723; Li #4725) at 10.73 UT (~ 5.75 hours after burst) and 11.07 UT (~6.08 hours), respectively. No source was detected at afterglow position of our R and I images. Compare with USNO-B1.0, 3-sigma limiting magnitude are summarized as below :
```
Delay time (hour)  Filter   Exp.     limit    site   
   Mean time                         (SN=3) 
---------------------------------------------------------------------
      5.79          R      600s x 1   19.5     Xinglong
      5.97          I      600s x 1   18.7     Xinglong
      6.18          R      300s x 3   20.8     Lulin
      6.46          I      300s x 3   20.0     Lulin       
```
This message may be cited."
GCN Circular #4733
A.P. Beardmore, S. Mateos, K.L. Page (UL), D.N. Burrows (PSU) report on behalf of the Swift XRT Team.
We have analysed the Swift XRT data from the first 3 orbits of GRB 060210 (Beardmore et al, GCN 4724). The refined XRT position from 2.5 ks of photon counting mode data is
```
RA(J2000)  =   3h 50m 57.4s
Dec(J2000) = +27d 01' 36.4"
```
with an estimated uncertainty of 3.6 arcsec (90% containment). This position is 29.5 arcseconds from the BAT position given in GCN 4724 and 2.0 arcseconds from the optical afterglow position reported in GCN 4726 (Mundell et al).
The fading X-ray light curve shows 2 strong flares 200 s and 385 s after the BAT trigger. Fitting a power law to the data after the flares gives a late time decay slope of 0.7.
The X-ray spectrum from the first orbit (T+103s to T+600s) is well fit by an absorbed power law, with a photon index of 1.93+/-0.03 and a column density of 1.64+/-0.3 e22 cm**-2 in the rest frame of the burst (assuming z = 3.91; Cucchiara et al, GCN 4729), in addition to the Galactic value of 8.5e20 cm**-2. The observed 0.2-10 keV flux is 9.4e-10 ergs cm**-2 s**-1, which corresponds to an unabsorbed flux of 1.3e-09 ergs cm**-2 s**-1.
Assuming the X-ray emission from the GRB continues to decay at the same rate, the predicted count rate 24 hrs after the burst trigger is 0.1 count/s, which corresponds to an observed (unabsorbed) 0.2-10 keV flux of 3.4e-12 (4.8e-12) ergs cm**-2 s**-1.
This circular is an official product of the Swift XRT Team.
GCN Circular #4734
A. Parsons (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), T. Sakamoto (GSFC/ORAU), G. Sato (ISAS), J. Tueller (GSFC) 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 060210 (trigger #180977) (Beardmore, et al., GCN 4724). The BAT ground-calculated position is (RA,Dec) = 57.728, 27.022 deg {3h 50m 54.8s, 27d 1' 18.9"} (J2000) +- 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 41%.
There is significant emission starting at T-45 sec, lasting all the way to a spike at T_zero. Then there is decaying emission out to ~T+15 (with a small peak at ~T+10), and then there is flat soft emission out to at least T+122 sec. We currently have data downlinked out to T+122, so we can not say what the lightcurve looks like past that point, although it seems likely there is emision beyond T+122. T90 (15-350 keV) is 46 +- 10 sec (estimated error including systematics). We will issue a another circular when the full data set becomes available (probably Saturday).
The time-averaged spectrum from T-45.0 to T+9.3 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.47 +- 0.07. The fluence in the 15-150 keV band is (4.0 +- 0.2) x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T-0.02 sec in the 15-150 keV band is (2.7 +- 0.3) ph/cm2/sec. All the quoted errors are at the 90% confidence level.
GCN Circular #4742
Kuntal Misra (ARIES, Nainital) on behalf of a larger Indian GRB collaboration
We observed the field of GRB 060210 (swift trigger = 180977) using the 1-m reflector at ARIES, Nainital. The afterglow candidate reported by Fox and Cenko (#GCN 4723) is seen in our R band frame of 900 sec exposure, ~8.8 hrs after the burst, at a magnitude of 20.5 +/- 0.2 in comparison to four nearby USNO-B1.0 stars.
GCN Circular #4746
P. J. Brown (PSU), A. Beardmore (U Leicester), P. Schady (PSU/UCL-MSSL), N. Gehrels (GSFC) on behalf of the Swift/UVOT team report:
The Swift/UVOT began taking data on the field of GRB 060210 at 05:00:28 UT on 2006-02-10, approximately 98 s after the BAT trigger (Beardmore et al., GCN 4724). No source is detected in the refined XRT error circle (Beardmore et al., GCN 4733) or at the position of the afterglow identified by Fox & Cenko (GCN 4723) in either the 200s finding chart images or summed images down to the following 3-sigma magnitude upper limits:
```
Filter  T_range(s)  Exp(s)  3sigUL(mag)
V       98-297        200      18.9
V       98-17151      1574     20.1
B       305-504       200      19.9
B       305-28728     2557     21.3
U       3750-27815    1594     20.6
UVW1    606-12060     1289     20.8
UVM2    582-17970     1402     21.1
UVW2    535-23754     2231     21.5
White	510-29539     2170     21.4
```
These magnitudes are uncorrected for Galactic extinction; E(B-V) = 0.09.
These non-detections are consistent with the spectrum described by Cucchiara, Fox & Berger (GCN 4729)
GCN Circular #4748
T. Sakamoto (GSFC/ORAU), 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), A. Parsons (GSFC), G. Sato (ISAS), J. Tueller (GSFC), on behalf of the Swift-BAT team:
Using the data set from T-299.8 to T+302.2 sec from the recent telemetry downlink, we report further analysis of BAT GRB 060210 (trigger #180977) (Beardmore, et al., GCN 4724; Parsons, et al., GCN 4734). The BAT ground-calculated position is (RA,Dec) = 57.729, 27.024 deg {3h 50m 55.1s, 27d 1' 27.5"} (J2000) +- 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 41%.
The mask-weighted lightcurve shows many peaks with significant emission peaks starting at T-230 sec and the last peak at T+200. We caution that this on-going activity is a significant fraction of the t-300 to T+300 sec data interval we have received so far. This burst may have earlier or later activity. The main activity is from T-75 to T+20 sec with the brightest peak at T_zero. T90 (15-350 keV) is (255 +- 10) sec (estimated error including systematics).
The time-averaged spectrum from T-227.5 to T+205.8 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.52 +- 0.09. The fluence in the 15-150 keV band is (7.7 +- 0.4) x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+0.00 sec in the 15-150 keV band is (2.8 +- 0.3) ph/cm2/sec. All the quoted errors are at the 90% confidence level.
GCN Circular #4753
FROM: Don Lamb at U.Chicago
GRB 060210: ARC NIR Detection of Afterglow and Possible Host Galaxy
F. Hearty (Colorado), M. Bayliss (Chicago), D. Q. Lamb (Chicago), R. McMillan (APO), B. Ketzeback (APO), J. Barentine (APO), J. Dembicky (APO), and D. G. York (Chicago) report:
We observed the afterglow (Fox and Cenko, GCN 4723; Li, GCN 4725, 2727; Williams and Milne, GCN 4728, 4730; Misra, GCN 4742) of GRB 060210, a bright burst localized by Swift (Beardmore et al. GCN 4724, 4733; Takamoto et al. GCN 4748), on the night of February 10, using NIC-FPS on the ARC 3.5-meter telescope at Apache Point Observatory. The observation began at 2.65 UT on 11 February (21.75 hours after the burst) and ended at 3.35 UT on 11 February (22.37 hours after the burst). The observation consisted of a series of 90 20-second exposures in Ks. Using these exposures, we have constructed a stacked image of the GRB field, corresponding to a 30-minute exposure. Further 20-second exposures amounting to a total of 3300 seconds of exposure were taken immediately following this and are being processed.
We detect an object at greater than the 5-sigma confidence level at the location of the optical afterglow to within 0.5". The PSF of the object overlaps with that of an adjacent extended source, but appears to be consistent with that of a point source. We identify the object=20 as the NIR afterglow of GRB 060210. We measure Ks =3D 19.3 =B1 0.2 mag, calibrated relative to the 2MASS stars in the field.
We also detect an extended object centered 2"-3" to the north and immediately adjacent to the afterglow at Ks =3D 20.2 =B1 0.3 mag, which may be the host galaxy of the burst.
NIC-FPS is currently in its commissioning phase.
GCN Circular #4761
Dale A. Frail (NRAO) reports on behalf of a larger collaboration:
"We used the Very Large Array to observe the GRB060210 (GCN 4724; GCN 4733; GCN 4734) at a frequency of 8.46 GHz on 2006 February 14.16 UT. No radio emission is detected within the +/-0.5 arcsecond error radius of the optical afterglow (GCN 4726) with a 3-sigma limit of 72 uJy.
No further observations are planned.
The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc."
astro-ph/0602495 from 23 Feb 2006
Stanek:
We report on two recent z~4 gamma-ray bursts (GRBs), GRB 060206 and GRB 060210, for which we have obtained well-sampled optical light curves. Our data, combined with early optical data reported in the literature, shows unusual behavior for both afterglows. In R-band GRB 060206 (z=4.045) experienced a slow early decay, followed by a rapid increase in brightness by factor ~2.5 about 1 hour after the burst. Its afterglow then faded in a broken power-law fashion, with a smooth break at t_b=0.6 days, but with additional, less dramatic (~10%) ``bumps and wiggles'', well detected in the densely sampled light curve. The R-band afterglow of GRB 060210 (z=3.91) is also unusual: the light curves was more or less flat between 60 and 300 sec after the burst, followed by ~70% increase at ~600 sec after the burst, after which the light curve declined as a \~t^{-1.3} power-law. The early X-ray light curve of GRB 060210 exhibited two sharp flares, but later X-ray emission fades in the same fashion as the optical light curve. Despite earlier reports to the contrary, we find that for GRB 060206 X-rays also more or less follow the optical decay, but with significant variations on short timescales. We argue that ``anomalous'' optical afterglows are likely to be the norm, and that the rapid variations often seen in Swift-XRT data would also be seen in the optical light curves, given good enough sampling. As a result, some of the often employed procedures, such as deriving the jet opening angle using a smooth broken power-law fit to the optical light curves, in many cases might have a poor statistical significance. We argue that the early increase in brighness for both bursts might be due to the turn-on of the external shock. Existence of such features could provide valuable additional information about the burst. (Abridged)
GCN Circular #5147
X. Dai and K. Z. Stanek (Ohio State Univ.)
We analyzed the Swift-XRT light curve of GRB 060210 (Beardmore et al. 2006 GCN 4724). We added new data points to the X-ray light curve presented in Stanek et al. 2006 (astro-ph/0602495 v1) up to 1.e6 sec after the BAT trigger. We detected a smooth jet break (t_j = 7.9^{+2.2}_{-1.6} hr, observed) with the extended XRT light curve.
We fitted both a single power-law and a broken power-law model to the XRT light curve from 3.e3 sec to 1.e6 sec after the BAT trigger. For the single power-law model we found alpha=1.09 and chi^2(dof) = 292.3(69). For the broken power-law model we found alpha1 = 0.7, alpha2 = 1.4, t_j = 7.9 hr, and chi^2(dof) = 64.8(67). We note that the power-law decay index for the X-ray light curve before the jet break (alpha1 ~ 0.7) is not consistent with the optical index (alpha_o ~ 1.3, Stanek et al. 2006 astro-ph/0602495). The XRT light curve for GRB 060210 is at http://www.astronomy.ohio-state.edu/~xinyu/grb/060210.jpg
This message may be cited.
astro-ph/0701087 from 4 Jan 2007
Curran: The prompt to late-time multiwavelength analysis of GRB 060210
We present our analysis of the multiwavelength photometric & spectroscopic observations of GRB 060210 and discuss the results in the overall context of current GRB models. All available optical data underwent a simultaneous temporal fit, while X-ray and gamma-ray observations were analysed temporally & spectrally. The results were compared to each other and to possible GRB models. The X-ray afterglow is best described by a smoothly broken power-law with a break at 7.4 hours. The late optical afterglow has a well constrained single power-law index which has a value between the two X-ray indices, though it does agree with a single power-law fit to the X-ray. An evolution of the hardness of the high-energy emission is demonstrated and we imply a minimum host extinction from a comparison of the extrapolated X-ray flux to that measured in the optical. We find that the flaring gamma-ray and X-ray emission is likely due to internal shocks while the flat optical light curve at that time is due to the external shock. The late afterglow is best explained by a cooling break between the optical and X-rays and continued central engine activity up to the time of the break. The required collimation corrected energy of ~ 2x10^52 erg, while at the high end of the known energy distribution, is not unprecedented.

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Jochen Greiner, last update: 08-Jan-2007 [Disclaimer]