TDRSS lightcurve for Trigger=686818

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 May 16 00:17:49 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     686818,   Seg_Num: 0
GRB_RA:           71.113d {+04h 44m 27s} (J2000),
                  71.375d {+04h 45m 30s} (current),
                  70.314d {+04h 41m 15s} (1950)
GRB_DEC:         +31.197d {+31d 11' 48"} (J2000),
                 +31.226d {+31d 13' 33"} (current),
                 +31.105d {+31d 06' 17"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1738 [cnts]    Image_Peak=80 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   69     E_range: 15-50 keV
BKG_INTEN:       22787 [cnts]
BKG_TIME:        1039.71 SOD {00:17:19.71} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17527 TJD;   140 DOY;   16/05/19
GRB_TIME:        1053.53 SOD {00:17:33.53} UT
GRB_PHI:         -55.34 [deg]
GRB_THETA:        41.47 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     8.36 [sigma]
IMAGE_SIGNIF:    7.39 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +1  -3 -100  +1 -95  +0 
SUN_POSTN:        56.23d {+03h 44m 54s}  +19.82d {+19d 48' 59"}
SUN_DIST:         17.77 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:      206.06d {+13h 44m 14s}   -7.55d {-07d 32' 51"}
MOON_DIST:       131.62 [deg]
MOON_ILLUM:      93 [%]
GAL_COORDS:      170.45, -9.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       73.73,  8.82 [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 = 196.27,19.24 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=485309857).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 May 16 00:30:26 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     686818,   Seg_Num: 0
GRB_RA:           71.113d {+04h 44m 27s} (J2000),
                  71.375d {+04h 45m 30s} (current),
                  70.314d {+04h 41m 15s} (1950)
GRB_DEC:         +31.197d {+31d 11' 48"} (J2000),
                 +31.226d {+31d 13' 33"} (current),
                 +31.105d {+31d 06' 17"} (1950)
GRB_DATE:        17527 TJD;   140 DOY;   16/05/19
GRB_TIME:        1053.53 SOD {00:17:33.53} UT
TRIGGER_INDEX:   69
GRB_PHI:         -55.34 [deg]
GRB_THETA:        41.47 [deg]
DELTA_TIME:      58.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     8.36 [sigma]
IMAGE_SIGNIF:    7.39 [sigma]
LC_URL:          sw00686818000msb.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

Plot creation:
Wed May 18 20:30:43 EDT 2016