TDRSS lightcurve for Trigger=451901

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 22 Apr 11 15:42:11 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     451901,   Seg_Num: 0
GRB_RA:          111.995d {+07h 27m 59s} (J2000),
                 112.359d {+07h 29m 26s} (current),
                 110.375d {+07h 21m 30s} (1950)
GRB_DEC:         +75.106d {+75d 06' 21"} (J2000),
                 +75.082d {+75d 04' 55"} (current),
                 +75.206d {+75d 12' 23"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1196 [cnts]    Image_Peak=82 [image_cnts]
TRIGGER_DUR:     0.128 [sec] 
TRIGGER_INDEX:   125     E_range: 50-350 keV
BKG_INTEN:       33652 [cnts]
BKG_TIME:        56505.11 SOD {15:41:45.11} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15673 TJD;   112 DOY;   11/04/22
GRB_TIME:        56515.87 SOD {15:41:55.87} UT
GRB_PHI:         -135.72 [deg]
GRB_THETA:        44.66 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     27.94 [sigma]
IMAGE_SIGNIF:    7.19 [sigma]
MERIT_PARAMS:     +1  +0  +0  -3  +3  -3  +0  +0 -23  +0 
SUN_POSTN:        29.99d {+01h 59m 57s}  +12.23d {+12d 13' 32"}
SUN_DIST:         76.23 [deg]   Sun_angle= -5.5 [hr] (East of Sun)
MOON_POSTN:      273.28d {+18h 13m 07s}  -22.75d {-22d 45' 10"}
MOON_DIST:       126.73 [deg]
MOON_ILLUM:      74 [%]
GAL_COORDS:      139.71, 28.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       99.07, 52.36 [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 = 178.58,6.92 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 22 Apr 11 15:58:46 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     451901,   Seg_Num: 0
GRB_RA:          111.995d {+07h 27m 59s} (J2000),
                 112.359d {+07h 29m 26s} (current),
                 110.375d {+07h 21m 30s} (1950)
GRB_DEC:         +75.106d {+75d 06' 21"} (J2000),
                 +75.082d {+75d 04' 55"} (current),
                 +75.206d {+75d 12' 23"} (1950)
GRB_DATE:        15673 TJD;   112 DOY;   11/04/22
GRB_TIME:        56515.87 SOD {15:41:55.87} UT
TRIGGER_INDEX:   125
GRB_PHI:         -135.72 [deg]
GRB_THETA:        44.66 [deg]
DELTA_TIME:      45.00 [sec]
TRIGGER_DUR:     0.128 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     27.94 [sigma]
IMAGE_SIGNIF:    7.19 [sigma]
LC_URL:          sw00451901000msb.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 22 11:59:06 EDT 2011