TDRSS lightcurve for Trigger=750337

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Apr 17 14:52:12 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     750337,   Seg_Num: 0
GRB_RA:          187.781d {+12h 31m 08s} (J2000),
                 188.005d {+12h 32m 01s} (current),
                 187.136d {+12h 28m 33s} (1950)
GRB_DEC:          -7.972d {-07d 58' 19"} (J2000),
                  -8.068d {-08d 04' 02"} (current),
                  -7.696d {-07d 41' 45"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1107 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        17871 TJD;   118 DOY;   17/04/28
GRB_TIME:        53453.02 SOD {14:50:53.02} UT
GRB_PHI:         -37.73 [deg]
GRB_THETA:        21.28 [deg]
SOLN_STATUS:     0x1099D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.80 [sigma]
MERIT_PARAMS:     +0  +0 +125  +6  +1  -5  +0  +0 +88  +1 
SUN_POSTN:        36.13d {+02h 24m 31s}  +14.34d {+14d 20' 18"}
SUN_DIST:        151.73 [deg]   Sun_angle= -10.1 [hr] (East of Sun)
MOON_POSTN:       67.42d {+04h 29m 41s}  +16.77d {+16d 46' 02"}
MOON_DIST:       121.52 [deg]
MOON_ILLUM:      7 [%]
GAL_COORDS:      294.24, 54.56 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      190.29, -4.24 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This is a low-flux event whose position matches one of the nearby galaxy sources in the on-board catalog!  
COMMENTS:        This matches a source in the on-board catalog: Num=12185=NGC4487,   delta=0.083 [deg].  
COMMENTS:        This matches a source in the ground catalog: NGC4487,   delta=0.083 [deg].  
COMMENTS:        Galaxy NGC4487 (of total mag=11.00 and dia=4.10 arcmin) is inside the position error circle.  
COMMENTS:        There is a 0.09% probability that an NGC galaxy would happen by chance coincidence.  
COMMENTS:        This is a GRB in nearby galaxy or it is noise.

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Apr 17 15:08:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     750337,   Seg_Num: 0
GRB_RA:          187.781d {+12h 31m 08s} (J2000),
                 188.005d {+12h 32m 01s} (current),
                 187.136d {+12h 28m 33s} (1950)
GRB_DEC:          -7.972d {-07d 58' 19"} (J2000),
                  -8.068d {-08d 04' 02"} (current),
                  -7.696d {-07d 41' 45"} (1950)
GRB_DATE:        17871 TJD;   118 DOY;   17/04/28
GRB_TIME:        53453.02 SOD {14:50:53.02} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -37.73 [deg]
GRB_THETA:        21.28 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.80 [sigma]
LC_URL:          sw00750337000msb.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:
Fri Apr 28 11:13:19 EDT 2017