TDRSS lightcurve for Trigger=755873

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jun 17 21:31:41 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     755873,   Seg_Num: 0
GRB_RA:          200.808d {+13h 23m 14s} (J2000),
                 200.960d {+13h 23m 50s} (current),
                 200.371d {+13h 21m 29s} (1950)
GRB_DEC:         +64.198d {+64d 11' 52"} (J2000),
                 +64.107d {+64d 06' 26"} (current),
                 +64.459d {+64d 27' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       12572 [cnts]    Image_Peak=288 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   324     E_range: 15-25 keV
BKG_INTEN:       99191 [cnts]
BKG_TIME:        77364.83 SOD {21:29:24.83} UT
BKG_DUR:         64 [sec]
GRB_DATE:        17908 TJD;   155 DOY;   17/06/04
GRB_TIME:        77452.51 SOD {21:30:52.51} UT
GRB_PHI:         -19.27 [deg]
GRB_THETA:        38.20 [deg]
SOLN_STATUS:     0x203
RATE_SIGNIF:     66.46 [sigma]
IMAGE_SIGNIF:    7.07 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +0  -3  +0  +0  -9  +0 
SUN_POSTN:        73.12d {+04h 52m 29s}  +22.53d {+22d 31' 47"}
SUN_DIST:         84.42 [deg]   Sun_angle= -8.5 [hr] (East of Sun)
MOON_POSTN:      203.10d {+13h 32m 23s}   -5.17d {-05d 10' 02"}
MOON_DIST:        69.29 [deg]
MOON_ILLUM:      81 [%]
GAL_COORDS:      117.25, 52.58 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      152.01, 62.56 [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:        Since the foreground interval count rate is less than the bkg interval (SAA exit), this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 3.87,0.00 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 04 Jun 17 21:54:40 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     755873,   Seg_Num: 0
GRB_RA:          200.808d {+13h 23m 14s} (J2000),
                 200.960d {+13h 23m 50s} (current),
                 200.371d {+13h 21m 29s} (1950)
GRB_DEC:         +64.198d {+64d 11' 52"} (J2000),
                 +64.107d {+64d 06' 26"} (current),
                 +64.459d {+64d 27' 31"} (1950)
GRB_DATE:        17908 TJD;   155 DOY;   17/06/04
GRB_TIME:        77452.51 SOD {21:30:52.51} UT
TRIGGER_INDEX:   324
GRB_PHI:         -19.27 [deg]
GRB_THETA:        38.20 [deg]
DELTA_TIME:      186.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x203
RATE_SIGNIF:     66.46 [sigma]
IMAGE_SIGNIF:    7.07 [sigma]
LC_URL:          sw00755873000msb.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

Plot creation:
Sun Jun  4 18:05:25 EDT 2017