Gamma-ray Burst 061028

(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 28 Oct 06 01:28:41 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     235715,   Seg_Num: 0
GRB_RA:           97.212d {+06h 28m 51s} (J2000),
                  97.338d {+06h 29m 21s} (current),
                  96.282d {+06h 25m 08s} (1950)
GRB_DEC:         +46.270d {+46d 16' 12"} (J2000),
                 +46.265d {+46d 15' 54"} (current),
                 +46.303d {+46d 18' 09"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1824 [image_cnts]
TRIGGER_DUR:     128.000 [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:        14036 TJD;   301 DOY;   06/10/28
GRB_TIME:        5182.46 SOD {01:26:22.46} UT
GRB_PHI:         101.17 [deg]
GRB_THETA:        30.17 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.10 [sigma]
MERIT_PARAMS:     +1  +0  +0  +7  +1  -2  +0  +0 +44  +1 
SUN_POSTN:       212.22d {+14h 08m 53s}  -13.02d {-13d 00' 55"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.42d {+18h 53m 41s}  -27.84d {-27d 50' 38"}
MOON_DIST:       160.97 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.51, 15.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       95.41, 22.97 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
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 = 21.67,19.88 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:30:08 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     235715,   Seg_Num: 0
GRB_RA:           97.2267d {+06h 28m 54.4s} (J2000),
                  97.3535d {+06h 29m 24.8s} (current),
                  96.2967d {+06h 25m 11.2s} (1950)
GRB_DEC:         +46.2980d {+46d 17' 52.8"} (J2000),
                 +46.2932d {+46d 17' 35.4"} (current),
                 +46.3308d {+46d 19' 50.8"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       55 [cnts]
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5380.96 SOD {01:29:40.96} UT,   198.5 [sec] since BAT Trigger Time
CENTROID_X:      290.69,  raw= 291  [pixels]
CENTROID_Y:      354.54,  raw= 355  [pixels]
ROLL:            80.86 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   131.40
GRB_POS_XRT_Z:   -24.98
IMAGE_URL:       sw00235715000msxps_rw.img
SUN_POSTN:       212.22d {+14h 08m 53s}  -13.02d {-13d 00' 56"}
SUN_DIST:        116.48 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.43d {+18h 53m 44s}  -27.84d {-27d 50' 32"}
MOON_DIST:       160.94 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.49, 15.62 [deg] galactic lon,lat of the burst
ECL_COORDS:       95.42, 22.99 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:30:11 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     235715,   Seg_Num: 0
GRB_RA:           97.2267d {+06h 28m 54.4s} (J2000),
                  97.3535d {+06h 29m 24.8s} (current),
                  96.2967d {+06h 25m 11.2s} (1950)
GRB_DEC:         +46.2980d {+46d 17' 52.8"} (J2000),
                 +46.2932d {+46d 17' 35.4"} (current),
                 +46.3308d {+46d 19' 50.8"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       55 [cnts]
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5380.96 SOD {01:29:40.96} UT,   198.5 [sec] since BAT Trigger Time
CENTROID_X:      290.69,  raw= 291  [pixels]
CENTROID_Y:      354.54,  raw= 355  [pixels]
ROLL:            80.86 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   131.40
GRB_POS_XRT_Z:   -24.98
IMAGE_URL:       sw00235715000msxps_rw.img
SUN_POSTN:       212.22d {+14h 08m 53s}  -13.02d {-13d 00' 56"}
SUN_DIST:        116.48 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.43d {+18h 53m 44s}  -27.84d {-27d 50' 32"}
MOON_DIST:       160.94 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.49, 15.62 [deg] galactic lon,lat of the burst
ECL_COORDS:       95.42, 22.99 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:30:07 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     235715,   Seg_Num: 0
GRB_RA:           97.2267d {+06h 28m 54.4s} (J2000),
                  97.3535d {+06h 29m 24.8s} (current),
                  96.2967d {+06h 25m 11.2s} (1950)
GRB_DEC:         +46.2980d {+46d 17' 52.8"} (J2000),
                 +46.2932d {+46d 17' 35.4"} (current),
                 +46.3308d {+46d 19' 50.8"} (1950)
GRB_ERROR:       5.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.49e-09 [erg/cm2/sec]
GRB_SIGNIF:      7.41 [sigma]
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5380.96 SOD {01:29:40.96} UT,   198.5 [sec] since BAT Trigger Time
TAM[0-3]:        327.64 237.18 261.23 243.52
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       212.22d {+14h 08m 53s}  -13.02d {-13d 00' 56"}
SUN_DIST:        116.48 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.43d {+18h 53m 44s}  -27.84d {-27d 50' 32"}
MOON_DIST:       160.94 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.49, 15.62 [deg] galactic lon,lat of the burst
ECL_COORDS:       95.42, 22.99 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:31:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     235715,   Seg_Num: 0
GRB_RA:           97.212d {+06h 28m 51s} (J2000),
                  97.338d {+06h 29m 21s} (current),
                  96.282d {+06h 25m 08s} (1950)
GRB_DEC:         +46.270d {+46d 16' 12"} (J2000),
                 +46.265d {+46d 15' 54"} (current),
                 +46.303d {+46d 18' 09"} (1950)
GRB_DATE:        14036 TJD;   301 DOY;   06/10/28
GRB_TIME:        5182.46 SOD {01:26:22.46} UT
TRIGGER_INDEX:   20000
GRB_PHI:         101.17 [deg]
GRB_THETA:        30.17 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     128.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.10 [sigma]
LC_URL:          sw00235715000msb.lc
SUN_POSTN:       212.22d {+14h 08m 53s}  -13.02d {-13d 00' 57"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.45d {+18h 53m 47s}  -27.84d {-27d 50' 27"}
MOON_DIST:       160.96 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.51, 15.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       95.41, 22.97 [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 = 21.67,19.88 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:32:00 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.225d {+06h 28m 54s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 38"} (J2000)
POINT_ROLL:      80.863d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5390.55 SOD {01:29:50.55} UT,   208.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.650
N_STARS:         116
X_OFFSET:        381 [pixels]
Y_OFFSET:        520 [pixels]
X_MAX:           1340 [pixels]
Y_MAX:           1479 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00235715000msufc0208.fits
SUN_POSTN:       212.22d {+14h 08m 54s}  -13.02d {-13d 00' 58"}
SUN_DIST:        116.49 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.45d {+18h 53m 49s}  -27.84d {-27d 50' 25"}
MOON_DIST:       160.97 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:32:27 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.225d {+06h 28m 54s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 38"} (J2000)
POINT_ROLL:      80.863d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5390.55 SOD {01:29:50.55} UT,   208.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.650
N_STARS:         116
X_OFFSET:        381 [pixels]
Y_OFFSET:        520 [pixels]
X_MAX:           1340 [pixels]
Y_MAX:           1479 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00235715000msufc0208.fits
SUN_POSTN:       212.22d {+14h 08m 54s}  -13.02d {-13d 00' 58"}
SUN_DIST:        116.49 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.46d {+18h 53m 50s}  -27.84d {-27d 50' 23"}
MOON_DIST:       160.97 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 28 Oct 06 01:33:21 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.225d {+06h 28m 54s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 38"} (J2000)
ROLL:            80.863d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5390.55 SOD {01:29:50.55} UT,   208.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     183691792
X_OFFSET:        701 [pixels]
Y_OFFSET:        625 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       861
Y_GRB_POS:       785
BINNING_INDEX:   1
IM_URL:          sw00235715000msuni0208.fits
SUN_POSTN:       212.22d {+14h 08m 54s}  -13.02d {-13d 01' 00"}
SUN_DIST:        116.49 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.47d {+18h 53m 52s}  -27.84d {-27d 50' 19"}
MOON_DIST:       160.96 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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:     Sat 28 Oct 06 01:33:42 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.225d {+06h 28m 54s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 38"} (J2000)
ROLL:            80.863d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  5390.55 SOD {01:29:50.55} UT,   208.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     183691792
X_OFFSET:        701 [pixels]
Y_OFFSET:        625 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       861
Y_GRB_POS:       785
BINNING_INDEX:   1
IM_URL:          sw00235715000msuni0208.fits
SUN_POSTN:       212.22d {+14h 08m 54s}  -13.02d {-13d 01' 00"}
SUN_DIST:        116.49 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.47d {+18h 53m 53s}  -27.84d {-27d 50' 18"}
MOON_DIST:       160.96 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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:     Sat 28 Oct 06 01:42:49 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
POINT_ROLL:      80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6049.46 SOD {01:40:49.46} UT,   867.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.751
N_STARS:         190
X_OFFSET:        381 [pixels]
Y_OFFSET:        305 [pixels]
X_MAX:           1340 [pixels]
Y_MAX:           1264 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00235715000msufc0866.fits
SUN_POSTN:       212.23d {+14h 08m 55s}  -13.02d {-13d 01' 07"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.56d {+18h 54m 15s}  -27.83d {-27d 49' 41"}
MOON_DIST:       160.93 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:43:15 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
POINT_ROLL:      80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6049.46 SOD {01:40:49.46} UT,   867.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.751
N_STARS:         190
X_OFFSET:        381 [pixels]
Y_OFFSET:        305 [pixels]
X_MAX:           1340 [pixels]
Y_MAX:           1264 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00235715000msufc0866.fits
SUN_POSTN:       212.23d {+14h 08m 55s}  -13.02d {-13d 01' 07"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.57d {+18h 54m 16s}  -27.83d {-27d 49' 40"}
MOON_DIST:       160.93 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 28 Oct 06 01:45:12 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
ROLL:            80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6049.46 SOD {01:40:49.46} UT,   867.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     183692450
X_OFFSET:        700 [pixels]
Y_OFFSET:        624 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       860
Y_GRB_POS:       784
BINNING_INDEX:   1
IM_URL:          sw00235715000msuni0866.fits
SUN_POSTN:       212.23d {+14h 08m 56s}  -13.02d {-13d 01' 09"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.59d {+18h 54m 21s}  -27.83d {-27d 49' 32"}
MOON_DIST:       160.93 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 28 Oct 06 01:45:32 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
ROLL:            80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6049.46 SOD {01:40:49.46} UT,   867.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     183692450
X_OFFSET:        700 [pixels]
Y_OFFSET:        624 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       860
Y_GRB_POS:       784
BINNING_INDEX:   1
IM_URL:          sw00235715000msuni0866.fits
SUN_POSTN:       212.23d {+14h 08m 56s}  -13.02d {-13d 01' 09"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.59d {+18h 54m 22s}  -27.83d {-27d 49' 31"}
MOON_DIST:       160.92 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 28 Oct 06 01:49:36 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
POINT_ROLL:      80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6154.68 SOD {01:42:34.68} UT,   972.2 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        2.625
N_STARS:         190
X_OFFSET:        381 [pixels]
Y_OFFSET:        305 [pixels]
X_MAX:           1340 [pixels]
Y_MAX:           1264 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00235715000msufc0972.fits
SUN_POSTN:       212.24d {+14h 08m 56s}  -13.02d {-13d 01' 13"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.63d {+18h 54m 32s}  -27.82d {-27d 49' 14"}
MOON_DIST:       160.91 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 28 Oct 06 01:49:58 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
POINT_ROLL:      80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6154.68 SOD {01:42:34.68} UT,   972.2 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        2.625
N_STARS:         190
X_OFFSET:        381 [pixels]
Y_OFFSET:        305 [pixels]
X_MAX:           1340 [pixels]
Y_MAX:           1264 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00235715000msufc0972.fits
SUN_POSTN:       212.24d {+14h 08m 56s}  -13.02d {-13d 01' 13"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.64d {+18h 54m 33s}  -27.82d {-27d 49' 13"}
MOON_DIST:       160.91 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 28 Oct 06 01:51:05 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
ROLL:            80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6154.68 SOD {01:42:34.68} UT,   972.2 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     183692556
X_OFFSET:        700 [pixels]
Y_OFFSET:        624 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       860
Y_GRB_POS:       784
BINNING_INDEX:   1
IM_URL:          sw00235715000msuni0972.fits
SUN_POSTN:       212.24d {+14h 08m 57s}  -13.02d {-13d 01' 14"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.65d {+18h 54m 35s}  -27.82d {-27d 49' 08"}
MOON_DIST:       160.91 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 28 Oct 06 01:51:24 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     235715,   Seg_Num: 0
POINT_RA:         97.228d {+06h 28m 55s} (J2000)
POINT_DEC:       +46.261d {+46d 15' 40"} (J2000)
ROLL:            80.864d
IMG_START_DATE:  14036 TJD;   301 DOY;   06/10/28
IMG_START_TIME:  6154.68 SOD {01:42:34.68} UT,   972.2 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     183692556
X_OFFSET:        700 [pixels]
Y_OFFSET:        624 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       860
Y_GRB_POS:       784
BINNING_INDEX:   1
IM_URL:          sw00235715000msuni0972.fits
SUN_POSTN:       212.24d {+14h 08m 57s}  -13.02d {-13d 01' 14"}
SUN_DIST:        116.50 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      283.65d {+18h 54m 36s}  -27.82d {-27d 49' 07"}
MOON_DIST:       160.91 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      168.52, 15.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       95.42, 22.96 [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 #5762
T. Sakamoto (NASA/ORAU), S. D. Barthelmy (GSFC), A. P. Beardmore (U Leicester), D. N. Burrows (PSU), M. M. Chester (PSU), H. A. Krimm (GSFC/USRA), V. Mangano (INAF-IASFPA), C. B. Markwardt (GSFC/UMD), F. E. Marshall (NASA/GSFC), T. Mineo (INAF-IASFPA), D. M. Palmer (LANL) and M. Stamatikos (NASA/ORAU) report on behalf of the Swift Team:
At 01:26:22 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 061028 (trigger=235715). Swift slewed immediately to the burst. The BAT on-board calculated location is RA,Dec 97.212, +46.270 {06h 28m 51s, +46d 16' 12"} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). This is a 128-sec image trigger and as is typical the BAT lightcurve does not show any significant emission.
The XRT began observing the field at 01:29:40 UT, 198 seconds after the BAT trigger. XRT found a bright, fading, uncatalogued X-ray source located at RA(J2000) = 06h 28m 54.5s, Dec(J2000) = +46d 17' 55.4", with an estimated uncertainty of 5.0 arcseconds (90% confidence radius). This location is 110 arcseconds from the BAT on-board position, within the BAT error circle. The initial flux in the 2.5s image was 1.5e-09 erg/cm2/s (0.2-10 keV).
UVOT took a finding chart exposure of 100 seconds with the White (160-650 nm) filter starting 208 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 3-sigma upper limit is 19.4 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 0.16.
GCN Circular #5763
Klotz, A. (CESR-OMP), Boer M. (OHP), Atteia J.L. (LATT-OMP) report:
We imaged the field of GRB 061028 detected by SWIFT (trigger 235715) with the TAROT robotic telescope (D=25cm) located at the Calern observatory, France.
The observations started 145.4s after the GRB trigger (6.7s after the notice). The elevation of the field increased from from 67 degrees above horizon and weather conditions were good.
The date of trigger : t0 = 2006-10-28T01:26:22.272
The first image is trailed with a duration of 60.0s (see the description in Klotz et al., 2006, A&A 451, L39). We do not detect any OT with a limiting magnitude of: t0+145.4s to t0+205.4s : R > 16.5
The second image is 30.0s exposure in tracking mode: t0+212.1s to t0+242.1s : R > 17.5
We co-added a series of exposures: t0+212.1s to t0+497.5s : R > 18.3
Magnitudes were estimated with the nearby USNO-B1 stars and are not corrected for galactic dust extinction.
N.B. Galactic coordinates are lon=168.5115 lat=+15.6018 and the galactic extinction in R band is 0.4 magnitudes estimated from D. Schlegel et al. 1998ApJ...500..525S.
This message may be cited.
GCN Circular #5764
Klotz, A. (CESR-OMP), Boer M. (OHP), Atteia J.L. (LATT-OMP) report:
We continued to monitor the XRT error box of GRB 061028 defined Sakamoto et al. (GCNC 5762) with TAROT. Early observations (Klotz et al. GCNC 5763) did not shown any OT in this area.
Under excellent weather conditions, we can now give the following upper limit derived from a series of co-added 180s images images:
from t0+0.44 to t0+1.07 hour : R>20.1
where t0 is the BAT trigger date.
GCN Circular #5765
G. Sato (GSFC/ISAS), L. Barbier (GSFC), S. D. Barthelmy (GSFC), J. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC) on behalf of the Swift-BAT team:
Using the data set from T-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 061028 (trigger #235715) (Sakamoto, et al., GCN Circ. 5762). The BAT ground-calculated position is RA,Dec = 97.193, 46.290 deg {6h 28m 46.3s, 46d 17' 25.1"} (J2000) +- 2.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 35%.
The mask-weighted lightcurve shows several weak pulses starting from T+55 sec, and the highest peak at T+81 sec. The weak tail emission is ending around T+300 sec. T90 (15-350 keV) is 106 +- 5 sec (estimated error including systematics).
The time-averaged spectrum from T+47 to T+166 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.73 +- 0.30. The fluence in the 15-150 keV band is 9.7 +- 1.7 x 10^-07 erg/cm2. The 1-sec peak photon flux measured from T+79.94 sec in the 15-150 keV band is 0.7 +- 0.2 ph/cm2/sec. All the quoted errors are at the 90% confidence level.

GCN Circular #5766
S.R. Oates (UCL-MSSL), T. Sakamoto (NASA/ORAU) report on behalf of the Swift/UVOT team:
The Swift/UVOT began observing the field of GRB 061028 at 01:29:32 on 2006-10-28, 190s after the BAT trigger (Sakamoto et al., GCN 5762). No new source was detected within the XRT error circle in coadded images in any filter down to the following 3-sigma magnitude upper limits:

Filter  Start    End       Exposure    3-sigma UL
------------------------------------------------
V       190      6596       747          20.6
B       410      6131       274          20.3
U       386      5926       313          19.9
W1      362      5722       313          18.5
M2      338      5517       313          19.4
W2      438      6541       471          19.3

WHITE   208      6335       443          18.9
------------------------------------------------

These upper limits are not corrected for Galactic extinction E(B-V) = 0.16.

GCN Circular #5767
G. Cusumano (IASF-Pa INAF), T. Mineo (IASF-Pa INAF), V. Mangano (IASF-Pa=20 INAF), B. Sbarufatti (IASF-Pa INAF) and T. Sakamoto (GSFC/ORAU) report on behalf of the Swift XRT team:
We have analyzed the first 4 orbits of Swift-XRT data obtained for GRB 061028 (trigger=3D235715, GCN 5762). The data consist of 100 s in Windowe= d Timing (WT) mode, starting 205 seconds after the BAT trigger and 8 ks in Photon Counting (PC) mode.
Using PC data we obtain a refined position of:
```
RA(J2000) =3D  06h 28m 54.53s
Dec(J2000)=3D +46d 17' 55.20"
```
with an estimated uncertainty radius of 3.9 arcsec (90% containment) taking into account the new TELDEF files . This location is 0.4 arcsec from the first XRT position (GCN 5762).
The light-curve shows a steep decay (alpha=3D3.9=B10.4) up to the end of= the second orbit. Data relative to the next two orbits show a detection at 3 sigma level with a count rate of (3=B11)E-3 corresponding to a flux of 1.5E-13 erg cm^-2 sec^-1, significantly higher than the model=20 extrapolation.
The spectrum from all the WT data can be modeled with a power law of photon index Gamma =3D 1.4 =B1 0.1, with an absorbing column of NH =3D (2.4=B10.6)E21 cm^-2, significantly higher than the Galactic value of 1.37E21 cm^-2. The 0.2-10 keV unabsorbed flux during the WT is 5.7E-10 erg cm^-2 sec^-1. The spectrum from the PC data is softer than the WT spectrum: it can be modeled with a power-law of photon index Gamma =3D 2.4=B10.4. All errors are quoted at 90% confidence level.
This circular is an official product of the Swift-XRT team.
GCN Report 11.1
GCN_Report 11.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_11_1.pdf by T. Sakamoto at NASA-GSFC titled: "Swift observations of GRB 061028"
GCN Circular #5768
GRB 061028: z-band imaging
J. S. Bloom (UC Berkeley), D. Charbonneau, M. J. Holman, E. E. Falco (Harvard/CfA), H-. W. Chen (U Chicago) report on behalf of a larger collaboration:
"We observed the field of GRB 061028 (Sakamoto et al. GCN 5762) using the z-band filter of Keplercam mounted on the Mt. Hopkins 48-inch telescope. In a stacked series of 5 minute exposures from 06:20 - 07:21 Oct 28, 2006 UTC (from about 4 - 5 hours after the GRB trigger), we find no detected source consistent with the revised XRT position (Cusumano et al. GCN 5767). We do note the presence of a marginally detected faint red source (S1) to the north of the error circle that is not in the DSS2 F or N plates at position 06:28:54.6, 46:18:01 (J2000). Photometric calibration is in progress but, for reference, S1 is about 2.1 mag fainter in z-band than the object at 06:28:54.1, +46:18:15. Our 3 sigma limiting magnitude is roughly 0.2 mag fainter than S1."
An image of the field (XRT 90% confidence region circled) is located at: http://lyra.berkeley.edu/~jbloom/grb061028_zcompare_bloom.ps.gz
This message may be cited.
GCN Circular #5769
A. C. Updike and D. H. Hartmann (Clemson University) report on behalf of the Clemson GRB Follow-Up Team:
The .9m SARA telescope began imaging the field of GRB 061028 4 hours and 51 minutes after the Swift Trigger 235715 at 01:26:22 UT. Our initial observations were comprised of 180-second exposures in the I band. After stacking in sets of 5, we did not detect any new sources. Our observations continued with 300-second exposures in the I band, 6 hours and 6 minutes after the trigger. Based on a total of 25 minutes of stacked I-band exposures we conclude that the XRT error circle (GCN 5762) does not contain a new or fading source to a limiting magnitude of I ~ 20.1 =B1 .4 mag (based on calibration of 10 field sources from USNO B1.0 I2 band).
The Clemson University GRB Response Site may be found at: http://people.clemson.edu/~kgarime/burst/index.php
The SARA Homepage can be found at: http://saraobservatory.org
This message may be cited.
GCN Circular #5770
S. B. Cenko, E. O. Ofek, and M. Kasliwal (Caltech) report on behalf of a larger collaboration:
We have imaged the field of GRB061028 (Sakamoto et al, GCN 5762) with the Large Format Camera mounted at the prime focus of the 200" Palomar Hale telescope. Images consisted of 4 x 180 s in i' and 3 x 180 s in r' taken at a mean epoch of approximately 28 October 12:30 UT (~ 11 hr after the burst).
The afterglow candidate identified by Bloom et al. (S1, GCN 5768) is clearly detected in our i'-band images and marginally detected in an r' coaddition. We measure R ~ 22.4, I ~ 21.0 for this source, with large uncertainties due to photometric calibration (relative to USNO-B R2 and I2 reference).
We also find another red source (S2) located several arcseconds to the west of the XRT error circle (Cusumano et al., GCN 5767). The coordinates (J2000.0) of this object are:
```
	RA: 06:28:54.8
    	Dec: +46:17:56.8
```
We measure R ~ 22.6, I ~ 21.0 for this object, with similarly large photometric uncertainties.
We find no sources inside the revised XRT error circle. The 5-sigma limiting magnitudes of our observations are R >~ 22.0, I >~ 22.0. An image of the field will be posted shortly at:
http://www.srl.caltech.edu/~cenko/public/grb/grb061028.jpg
Further observations are planned to search for variability in these two objects.
GCN Circular #5771
N. Mirabal (Columbia U.), R. J. Assef & K. Schlesinger (OSU) report on behalf of the MDM Observatory GRB follow-up team:
"We observed the Swift error circle of GRB 061028 (Sakamoto et al., GCN 5762) in r', i', and z' bands using the RETROCAM imager on the MDM 2.4m telescope starting on October 28 06:47 UT, 5.35 hours after the trigger. A summed 45-minute exposure in i' reveals no new object in the refined XRT error circle (Cusumano et al., GCN 5767) down to I ~ 21.5 relative to the USNO-B1.0 catalog. We clearly detect sources S1 (Bloom et al., GCN 5768) and S2 (Cenko et al., GCN 5770) at a preliminary magnitude of I ~ 21.0 for both objects, consistent with the measurements reported by Cenko et al (GCN 5770). Results of additional bands will be reported subsequently.
This message may be cited."
GCN Circular #5772
S. B. Cenko, E. O. Ofek, and M. Kasliwal (Caltech) report on behalf of a larger collaboration:
We have re-imaged the field of GRB061028 (Sakamoto et al, GCN 5762) with the Large Format Camera mounted on the 200" Palomar Hale telescope. Observations consisted of 2 x 180 s images in r' and i' taken at a mean epoch of approximately 29 Oct. 12:45 UT (~ 35.3 hr after the burst).
We find no evidence for variability in either afterglow candidate S1 (Bloom et al, GCN 5768) or S2 (Cenko et al, GCN 5770). Given the constant flux level from ~ 5 hr (Mirabal et al, GCN 5771) to ~ 35 hr after the burst, we consider both highly unikely to be related to the afterglow of GRB061028.
GCN Circular #5775
P. Chandra (UVA/NRAO) and D. A. Frail (NRAO) report on behalf of the Caltech-NRAO-Carnegie GRB Collaboration:
"We observed the field centered on the BAT position of the Swift burst GRB 061028 (GCN#5762, 5767) using the VLA at a frequency of 8.46 GHz and starting at 8.58 UT on 2006 Oct 31, about 3 days after the burst. There is no detection of the afterglow at the GRB position (GCN#5767) with 2-sigma upper limit of 80 microJy.
The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc."
GCN Circular #5779
A. C. Gupta & J. M. Bai National Astronomical Observatories/Yunnan Observatory CAS, P.O. Box 110, Kunming, Yunnan 650011, China
We observed the field of GRB 061028 detected by SWIFT trigger no. 235715 (Sakamoto et al, GCN 5762) with CCD detector at our 1.02 meter telescope of the Yunnan observatory, Kunming, China. We started our observation on Oct. 29, 2006 at UT 18:06:20. We took 6 image frames of 300 seconds exposure time of each in the optical R passband. There is no detection of optical afterglow candidate in our combined 6 images. The 5-sigma limiting magnitude of our observations is R ~ 20.0 mag.
GCN Circular #5785
J. L. Racusin (PSU), D. N. Burrows (PSU), T. Mineo (INAF-IASFPA), T. Sakamoto (NASA/ORAU), and N. Gehrels (NASA/GSFC) report on behalf of the Swift XRT team:
We have re-analyzed the full XRT data set of GRB 061028. XRT observed the field of GRB 061028 for a total exposure time of 49 ks between October 28 and October 29, 2006 in Photon Counting mode.
To further improve the accuracy of the previously reported position (Cusumano et al., GCN 5767), we performed an astrometry correction using 46 ks of the total exposure time (when the satellite position was stable). In this data set we find 18 serendipitous X-ray sources detected with the XIMAGE detect algorithm with S/N > 3, 7 of which have near-by optical counterparts in the USNO-B1 catalog. We match these sources to obtain a best fit mean frame shift, carefully accounting for several instrumental factors including exposure map correction, and additional hot pixel removal.
We calculate the statistical position errors using the empirical fits as described in Moretti et al. (2006, A&A, 448, L9), assuming that the astrometric correction removes the 3.5" systematic error normally applied to XRT positions to account for errors in the star tracker attitude solution.
The result of this analysis leads to a mean frame shift from the previously reported position (Cusumano et al., GCN 5767), of:
RA offset: +0.15s +/- 0.04s Dec offset: +1.3" +/- 0.7"
and a new XRT astrometry corrected position of:
```
RA(J2000):   06h 28m 54.66s
Dec(J2000): +46d 17' 57.0"
```
with an estimated uncertainty of 2.2 arcseconds (radius, 90% containment).
This position is 2.2 arcseconds from the refined XRT position given in Cusumano et al. (GCN 5767), 0.7 arcseconds from the position measured by Butler et al. (astro-ph/0611031), 1.5 arcseconds from the optical object described in Cenko et al. (GCN 5770), and 4.0 arcseconds from the optical object described in Bloom et al. (GCN 5768).
A figure comparing all of these positions is available at: http://www.swift.psu.edu/images/grb061028_astrometry.gif
This Circular is an official product of the Swift XRT team.
GCN Circular #5789
Gaug M. and Garczarczyk M., Bastieri D., Fagiolini M., Galante N., Longo F., Mizobuchi S., Piccioli A., Scapin V. and Stamerra A. report for the MAGIC collaboration:
The MAGIC Imaging Atmospheric Cherenkov Telescope performed a follow-up observation of the SWIFT-BAT burst GRB061028 (GCN circular 5762, Sakamoto T. et al.). We received the GCN alert at T0+140s. The telescope slewed immediately to the GRB sky coordinates and started data taking 29s after the alert, at T0+169s. Due to the long time delay of the alert and the burst duration of T90=106s, only the early afterglow phase could be observed by MAGIC. Our observation window covered the weak tail emission measured by BAT and the X-ray afterglow measured by XRT (Sakamoto T. et al.). The observation continued for 100min.
No evidence for VHE gamma-ray emission above the analysis threshold of 110GeV was found. A preliminary analysis, for the hypothesis of steady emission and assumption of a differential photon spectral index of -2.5, yields the following 95% CL differential flux upper limits (inc. 30% systematic error on the absolute flux level):
```
E(100-125 GeV)  : 1.6 x 10^(-10) erg/cm^2/s
E(125-175 GeV)  : 0.8 x 10^(-10) erg/cm^2/s
E(175-300 GeV)  : 0.7 x 10^(-10) erg/cm^2/s
E(300-1000 GeV) : 0.3 x 10^(-10) erg/cm^2/s
```
The upper limits apply of the time window between T0+169s and T0+1969s (the first 30min of the MAGIC data sample).
This message can be cited.

Back to JG's homepage

Jochen Greiner, last update: 08-Nov-2006 [Disclaimer]