TDRSS lightcurve for Trigger=451757

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 20 Apr 11 11:02:41 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     451757,   Seg_Num: 0
GRB_RA:            2.165d {+00h 08m 40s} (J2000),
                   2.308d {+00h 09m 14s} (current),
                   1.532d {+00h 06m 08s} (1950)
GRB_DEC:         -37.855d {-37d 51' 17"} (J2000),
                 -37.792d {-37d 47' 31"} (current),
                 -38.133d {-38d 07' 59"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4272 [cnts]    Image_Peak=155 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   144     E_range: 15-50 keV
BKG_INTEN:       28976 [cnts]
BKG_TIME:        39729.12 SOD {11:02:09.12} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15671 TJD;   110 DOY;   11/04/20
GRB_TIME:        39744.03 SOD {11:02:24.03} UT
GRB_PHI:         -34.11 [deg]
GRB_THETA:        50.19 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.64 [sigma]
IMAGE_SIGNIF:    7.93 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +1  -2  +0  +0 -57  +0 
SUN_POSTN:        27.94d {+01h 51m 45s}  +11.48d {+11d 28' 50"}
SUN_DIST:         54.81 [deg]   Sun_angle= 1.7 [hr] (West of Sun)
MOON_POSTN:      240.11d {+16h 00m 26s}  -22.62d {-22d 37' 16"}
MOON_DIST:        98.80 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      340.23,-76.01 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      344.64,-35.09 [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 = 324.28,20.03 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 20 Apr 11 11:37:55 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     451757,   Seg_Num: 0
GRB_RA:            2.165d {+00h 08m 40s} (J2000),
                   2.308d {+00h 09m 14s} (current),
                   1.532d {+00h 06m 08s} (1950)
GRB_DEC:         -37.855d {-37d 51' 17"} (J2000),
                 -37.792d {-37d 47' 31"} (current),
                 -38.133d {-38d 07' 59"} (1950)
GRB_DATE:        15671 TJD;   110 DOY;   11/04/20
GRB_TIME:        39744.03 SOD {11:02:24.03} UT
TRIGGER_INDEX:   144
GRB_PHI:         -34.11 [deg]
GRB_THETA:        50.19 [deg]
DELTA_TIME:      -50.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.64 [sigma]
IMAGE_SIGNIF:    7.93 [sigma]
LC_URL:          sw00451757000msb.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:
Wed Apr 20 07:38:07 EDT 2011