TDRSS lightcurve for Trigger=276321

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 20 Apr 07 06:18:40 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     276321,   Seg_Num: 0
GRB_RA:          121.253d {+08h 05m 01s} (J2000),
                 121.311d {+08h 05m 15s} (current),
                 120.855d {+08h 03m 25s} (1950)
GRB_DEC:         -45.561d {-45d 33' 38"} (J2000),
                 -45.582d {-45d 34' 54"} (current),
                 -45.417d {-45d 25' 01"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       12944 [cnts]    Image_Peak=331 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   263     E_range: 50-350 keV
BKG_INTEN:       114962 [cnts]
BKG_TIME:        22662.09 SOD {06:17:42.09} UT
BKG_DUR:         24 [sec]
GRB_DATE:        14210 TJD;   110 DOY;   07/04/20
GRB_TIME:        22693.52 SOD {06:18:13.52} UT
GRB_PHI:         146.80 [deg]
GRB_THETA:        48.28 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     23.93 [sigma]
IMAGE_SIGNIF:    10.94 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +3 +14  +0  +1 +18  +1 
SUN_POSTN:        27.72d {+01h 50m 53s}  +11.40d {+11d 24' 07"}
SUN_DIST:        100.61 [deg]   Sun_angle= -6.2 [hr] (East of Sun)
MOON_POSTN:       66.39d {+04h 25m 34s}  +26.82d {+26d 49' 24"}
MOON_DIST:        87.90 [deg]
MOON_ILLUM:      11 [%]
GAL_COORDS:      260.87, -7.41 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      143.87,-63.27 [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 = 134.64,-13.06 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 20 Apr 07 06:38:41 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     276321,   Seg_Num: 0
GRB_RA:          121.253d {+08h 05m 01s} (J2000),
                 121.311d {+08h 05m 15s} (current),
                 120.855d {+08h 03m 25s} (1950)
GRB_DEC:         -45.561d {-45d 33' 38"} (J2000),
                 -45.582d {-45d 34' 54"} (current),
                 -45.417d {-45d 25' 01"} (1950)
GRB_DATE:        14210 TJD;   110 DOY;   07/04/20
GRB_TIME:        22693.52 SOD {06:18:13.52} UT
TRIGGER_INDEX:   263
GRB_PHI:         146.80 [deg]
GRB_THETA:        48.28 [deg]
DELTA_TIME:      58.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     23.93 [sigma]
IMAGE_SIGNIF:    10.94 [sigma]
LC_URL:          sw00276321000msb.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

Extended TDRSS lc No.4

Plot creation:
Fri Apr 20 02:39:06 EDT 2007