TDRSS lightcurve for Trigger=503525

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 19 Sep 11 21:16:27 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     503525,   Seg_Num: 0
GRB_RA:          251.752d {+16h 47m 00s} (J2000),
                 251.966d {+16h 47m 52s} (current),
                 250.840d {+16h 43m 22s} (1950)
GRB_DEC:         -45.843d {-45d 50' 33"} (J2000),
                 -45.863d {-45d 51' 47"} (current),
                 -45.754d {-45d 45' 12"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       621 [cnts]    Image_Peak=67 [image_cnts]
TRIGGER_DUR:     0.064 [sec] 
TRIGGER_INDEX:   10409     E_range: 15-50 keV
BKG_INTEN:       44019 [cnts]
BKG_TIME:        76560.61 SOD {21:16:00.61} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15823 TJD;   262 DOY;   11/09/19
GRB_TIME:        76571.49 SOD {21:16:11.49} UT
GRB_PHI:         -167.74 [deg]
GRB_THETA:        10.33 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     13.96 [sigma]
IMAGE_SIGNIF:    7.03 [sigma]
MERIT_PARAMS:     +1  +0  +0  -4  +1  -3  +0  +1 -16  +0 
SUN_POSTN:       176.86d {+11h 47m 27s}   +1.36d {+01d 21' 29"}
SUN_DIST:         80.68 [deg]   Sun_angle= -5.0 [hr] (East of Sun)
MOON_POSTN:       77.72d {+05h 10m 54s}  +22.82d {+22d 49' 05"}
MOON_DIST:       156.49 [deg]
MOON_ILLUM:      57 [%]
GAL_COORDS:      339.55, -0.39 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      256.26,-23.27 [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 = 223.06,-19.13 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 19 Sep 11 21:28:14 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     503525,   Seg_Num: 0
GRB_RA:          251.752d {+16h 47m 00s} (J2000),
                 251.966d {+16h 47m 52s} (current),
                 250.840d {+16h 43m 22s} (1950)
GRB_DEC:         -45.843d {-45d 50' 33"} (J2000),
                 -45.863d {-45d 51' 47"} (current),
                 -45.754d {-45d 45' 12"} (1950)
GRB_DATE:        15823 TJD;   262 DOY;   11/09/19
GRB_TIME:        76571.52 SOD {21:16:11.52} UT
TRIGGER_INDEX:   10409
GRB_PHI:         -167.74 [deg]
GRB_THETA:        10.33 [deg]
DELTA_TIME:      29.00 [sec]
TRIGGER_DUR:     0.064 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     13.96 [sigma]
IMAGE_SIGNIF:    7.03 [sigma]
LC_URL:          sw00503525000msb.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

Plot creation:
Mon Sep 19 17:28:24 EDT 2011