TDRSS lightcurve for Trigger=501752

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Aug 11 23:45:22 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     501752,   Seg_Num: 0
GRB_RA:          278.721d {+18h 34m 53s} (J2000),
                 278.880d {+18h 35m 31s} (current),
                 278.037d {+18h 32m 09s} (1950)
GRB_DEC:          -8.751d {-08d 45' 04"} (J2000),
                  -8.741d {-08d 44' 28"} (current),
                  -8.792d {-08d 47' 30"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       233 [cnts]    Image_Peak=38 [image_cnts]
TRIGGER_DUR:     0.016 [sec] 
TRIGGER_INDEX:   10209     E_range: 15-50 keV
BKG_INTEN:       34910 [cnts]
BKG_TIME:        85256.68 SOD {23:40:56.68} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15802 TJD;   241 DOY;   11/08/29
GRB_TIME:        85272.04 SOD {23:41:12.04} UT
GRB_PHI:         -32.21 [deg]
GRB_THETA:        36.12 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.57 [sigma]
IMAGE_SIGNIF:    7.27 [sigma]
MERIT_PARAMS:     +1  +0  +0  -6  +1  -3  +0  +1 +51  +0 
SUN_POSTN:       158.05d {+10h 32m 12s}   +9.20d {+09d 12' 18"}
SUN_DIST:        121.62 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      167.18d {+11h 08m 44s}   +0.09d {+00d 05' 38"}
MOON_DIST:       111.45 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:       23.26, -0.34 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      278.90, 14.42 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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 = 18.85,-20.57 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Aug 11 23:58:07 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     501752,   Seg_Num: 0
GRB_RA:          278.721d {+18h 34m 53s} (J2000),
                 278.880d {+18h 35m 31s} (current),
                 278.037d {+18h 32m 09s} (1950)
GRB_DEC:          -8.751d {-08d 45' 04"} (J2000),
                  -8.741d {-08d 44' 28"} (current),
                  -8.792d {-08d 47' 30"} (1950)
GRB_DATE:        15802 TJD;   241 DOY;   11/08/29
GRB_TIME:        85272.25 SOD {23:41:12.25} UT
TRIGGER_INDEX:   10209
GRB_PHI:         -32.21 [deg]
GRB_THETA:        36.12 [deg]
DELTA_TIME:      44.00 [sec]
TRIGGER_DUR:     0.016 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.57 [sigma]
IMAGE_SIGNIF:    7.27 [sigma]
LC_URL:          sw00501752000msb.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:
Mon Aug 29 19:59:04 EDT 2011