TDRSS lightcurve for Trigger=276784

Notes:

• 1) None of the TDRSS light curves are background subtracted.

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 23 Apr 07 14:17:15 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     276784,   Seg_Num: 0
GRB_RA:          315.901d {+21h 03m 36s} (J2000),
                 315.966d {+21h 03m 52s} (current),
                 315.460d {+21h 01m 50s} (1950)
GRB_DEC:         +45.741d {+45d 44' 28"} (J2000),
                 +45.770d {+45d 46' 13"} (current),
                 +45.542d {+45d 32' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=6143 [image_cnts]
TRIGGER_DUR:     640.000 [sec]   (=10.7 [min])
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:        14213 TJD;   113 DOY;   07/04/23
GRB_TIME:        50662.09 SOD {14:04:22.09} UT
GRB_PHI:         177.57 [deg]
GRB_THETA:        29.23 [deg]
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.44 [sigma]
MERIT_PARAMS:     +0  +0 +100  +7  +1  -2  +0  +1 -33  +1 
SUN_POSTN:        30.84d {+02h 03m 21s}  +12.53d {+12d 31' 48"}
SUN_DIST:         70.54 [deg]   Sun_angle= 5.0 [hr] (West of Sun)
MOON_POSTN:      117.82d {+07h 51m 16s}  +25.09d {+25d 05' 31"}
MOON_DIST:       107.24 [deg]
MOON_ILLUM:      43 [%]
GAL_COORDS:       87.12, -0.69 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      342.22, 58.24 [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 matches a source in the on-board catalog: Num=10572=SAX2103.5+4545,   delta=0.016 [deg].  
COMMENTS:        This matches a source in the ground catalog: SAX2103.5+4545,   delta=0.016 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 23 Apr 07 14:17:50 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     276784,   Seg_Num: 0
GRB_RA:          315.901d {+21h 03m 36s} (J2000),
                 315.966d {+21h 03m 52s} (current),
                 315.460d {+21h 01m 50s} (1950)
GRB_DEC:         +45.741d {+45d 44' 28"} (J2000),
                 +45.770d {+45d 46' 13"} (current),
                 +45.542d {+45d 32' 31"} (1950)
GRB_DATE:        14213 TJD;   113 DOY;   07/04/23
GRB_TIME:        50662.09 SOD {14:04:22.09} UT
TRIGGER_INDEX:   20000
GRB_PHI:         177.57 [deg]
GRB_THETA:        29.23 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     640.000 [sec]   (=10.7 [min])
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.44 [sigma]
LC_URL:          sw00276784000msb.lc

Initial TDRSS lightcurve and spacecraft attitude plot

TDRSS lightcurve from T0-30 to T0+50 (zoom in)

TDRSS light curve from T0-1 to T0+2 (More zoom in)

1.6s binned TDRSS light curve

Plot creation:
Mon Apr 23 10:18:46 EDT 2007