TDRSS lightcurve for Trigger=500914

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 18 Aug 11 20:38:51 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     500914,   Seg_Num: 0
GRB_RA:          317.384d {+21h 09m 32s} (J2000),
                 317.622d {+21h 10m 29s} (current),
                 316.352d {+21h 05m 24s} (1950)
GRB_DEC:         -63.970d {-63d 58' 10"} (J2000),
                 -63.922d {-63d 55' 18"} (current),
                 -64.173d {-64d 10' 21"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       56986 [cnts]    Image_Peak=1067 [image_cnts]
TRIGGER_DUR:     12.160 [sec] 
TRIGGER_INDEX:   478     E_range: 25-100 keV
BKG_INTEN:       266606 [cnts]
BKG_TIME:        74176.72 SOD {20:36:16.72} UT
BKG_DUR:         64 [sec]
GRB_DATE:        15791 TJD;   230 DOY;   11/08/18
GRB_TIME:        74269.20 SOD {20:37:49.20} UT
GRB_PHI:         154.17 [deg]
GRB_THETA:        41.77 [deg]
SOLN_STATUS:     0x2003
RATE_SIGNIF:     16.03 [sigma]
IMAGE_SIGNIF:    14.23 [sigma]
MERIT_PARAMS:     +1  +0  +0  +4  +2  +3  +0  +0 +62  +0 
SUN_POSTN:       147.82d {+09h 51m 17s}  +13.00d {+13d 00' 03"}
SUN_DIST:        128.58 [deg]   Sun_angle= -11.3 [hr] (East of Sun)
MOON_POSTN:       18.85d {+01h 15m 25s}  +12.62d {+12d 37' 12"}
MOON_DIST:        89.42 [deg]
MOON_ILLUM:      78 [%]
GAL_COORDS:      330.71,-39.13 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      297.14,-44.93 [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:        There is a bright star (mag=5.76) 6.94 arcmin from this position.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 346.75,19.32 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 18 Aug 11 20:56:06 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     500914,   Seg_Num: 0
GRB_RA:          317.384d {+21h 09m 32s} (J2000),
                 317.622d {+21h 10m 29s} (current),
                 316.352d {+21h 05m 24s} (1950)
GRB_DEC:         -63.970d {-63d 58' 10"} (J2000),
                 -63.922d {-63d 55' 18"} (current),
                 -64.173d {-64d 10' 21"} (1950)
GRB_DATE:        15791 TJD;   230 DOY;   11/08/18
GRB_TIME:        74269.20 SOD {20:37:49.20} UT
TRIGGER_INDEX:   478
GRB_PHI:         154.17 [deg]
GRB_THETA:        41.77 [deg]
DELTA_TIME:      32.00 [sec]
TRIGGER_DUR:     12.160 [sec] 
SOLN_STATUS:     0x2003
RATE_SIGNIF:     16.03 [sigma]
IMAGE_SIGNIF:    14.23 [sigma]
LC_URL:          sw00500914000msb.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:
Thu Aug 18 16:56:23 EDT 2011