TDRSS lightcurve for Trigger=744773

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 30 Mar 17 22:30:33 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     744773,   Seg_Num: 0
GRB_RA:          283.326d {+18h 53m 18s} (J2000),
                 283.569d {+18h 54m 17s} (current),
                 282.621d {+18h 50m 29s} (1950)
GRB_DEC:         -13.437d {-13d 26' 12"} (J2000),
                 -13.415d {-13d 24' 52"} (current),
                 -13.500d {-13d 29' 57"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       12428 [cnts]    Image_Peak=340 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   290     E_range: 15-50 keV
BKG_INTEN:       105516 [cnts]
BKG_TIME:        80933.16 SOD {22:28:53.16} UT
BKG_DUR:         40 [sec]
GRB_DATE:        17842 TJD;    89 DOY;   17/03/30
GRB_TIME:        80991.34 SOD {22:29:51.34} UT
GRB_PHI:          87.76 [deg]
GRB_THETA:        27.21 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     18.65 [sigma]
IMAGE_SIGNIF:    9.35 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +1  +0  +0  +1  -4  +0 
SUN_POSTN:         9.57d {+00h 38m 17s}   +4.12d {+04d 07' 17"}
SUN_DIST:         87.08 [deg]   Sun_angle= 5.7 [hr] (West of Sun)
MOON_POSTN:       47.81d {+03h 11m 13s}  +12.63d {+12d 37' 59"}
MOON_DIST:       125.78 [deg]
MOON_ILLUM:      11 [%]
GAL_COORDS:       21.13, -6.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      283.13,  9.40 [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 = 109.08,-15.18 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 30 Mar 17 22:51:04 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     744773,   Seg_Num: 0
GRB_RA:          283.326d {+18h 53m 18s} (J2000),
                 283.569d {+18h 54m 17s} (current),
                 282.621d {+18h 50m 29s} (1950)
GRB_DEC:         -13.437d {-13d 26' 12"} (J2000),
                 -13.415d {-13d 24' 52"} (current),
                 -13.500d {-13d 29' 57"} (1950)
GRB_DATE:        17842 TJD;    89 DOY;   17/03/30
GRB_TIME:        80991.34 SOD {22:29:51.34} UT
TRIGGER_INDEX:   290
GRB_PHI:          87.76 [deg]
GRB_THETA:        27.21 [deg]
DELTA_TIME:      -57.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     18.65 [sigma]
IMAGE_SIGNIF:    9.35 [sigma]
LC_URL:          sw00744773000msb.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

Plot creation:
Thu Mar 30 18:58:17 EDT 2017