TDRSS lightcurve for Trigger=280706

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 29 May 07 12:49:26 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     280706,   Seg_Num: 0
GRB_RA:          283.750d {+18h 55m 00s} (J2000),
                 283.830d {+18h 55m 19s} (current),
                 283.212d {+18h 52m 51s} (1950)
GRB_DEC:         +20.639d {+20d 38' 21"} (J2000),
                 +20.649d {+20d 38' 56"} (current),
                 +20.574d {+20d 34' 27"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       50365 [cnts]    Image_Peak=419 [image_cnts]
TRIGGER_DUR:     12.160 [sec] 
TRIGGER_INDEX:   478     E_range: 25-100 keV
BKG_INTEN:       243391 [cnts]
BKG_TIME:        46014.01 SOD {12:46:54.01} UT
BKG_DUR:         64 [sec]
GRB_DATE:        14249 TJD;   149 DOY;   07/05/29
GRB_TIME:        46108.34 SOD {12:48:28.34} UT
GRB_PHI:          44.96 [deg]
GRB_THETA:        41.15 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     12.12 [sigma]
IMAGE_SIGNIF:    6.76 [sigma]
MERIT_PARAMS:     +1  +0  +0  +4  +2  +1  +0  +1 +55  +1 
SUN_POSTN:        66.01d {+04h 24m 02s}  +21.61d {+21d 36' 25"}
SUN_DIST:        123.87 [deg]   Sun_angle= 9.5 [hr] (West of Sun)
MOON_POSTN:      215.94d {+14h 23m 46s}  -18.68d {-18d 40' 41"}
MOON_DIST:        77.25 [deg]
MOON_ILLUM:      94 [%]
GAL_COORDS:       51.83,  8.50 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      287.78, 43.23 [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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 222.73,-2.86 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 29 May 07 13:06:25 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     280706,   Seg_Num: 0
GRB_RA:          283.750d {+18h 55m 00s} (J2000),
                 283.830d {+18h 55m 19s} (current),
                 283.212d {+18h 52m 51s} (1950)
GRB_DEC:         +20.639d {+20d 38' 21"} (J2000),
                 +20.649d {+20d 38' 56"} (current),
                 +20.574d {+20d 34' 27"} (1950)
GRB_DATE:        14249 TJD;   149 DOY;   07/05/29
GRB_TIME:        46108.34 SOD {12:48:28.34} UT
TRIGGER_INDEX:   478
GRB_PHI:          44.96 [deg]
GRB_THETA:        41.15 [deg]
DELTA_TIME:      6.00 [sec]
TRIGGER_DUR:     12.160 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     12.12 [sigma]
IMAGE_SIGNIF:    6.76 [sigma]
LC_URL:          sw00280706000msb.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

Extended TDRSS light curve and spacecraft attitude plot(s)

Extended TDRSS lc No.1

Extended TDRSS lc No.2

Extended TDRSS lc No.3

Plot creation:
Tue May 29 09:06:44 EDT 2007