TDRSS lightcurve for Trigger=921722

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 21 Aug 19 17:10:31 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     921722,   Seg_Num: 0
GRB_RA:          250.077d {+16h 40m 18s} (J2000),
                 250.398d {+16h 41m 36s} (current),
                 249.260d {+16h 37m 03s} (1950)
GRB_DEC:         -34.022d {-34d 01' 16"} (J2000),
                 -34.058d {-34d 03' 29"} (current),
                 -33.925d {-33d 55' 28"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3828 [cnts]    Image_Peak=191 [image_cnts]
TRIGGER_DUR:     1.408 [sec] 
TRIGGER_INDEX:   472     E_range: 25-100 keV
BKG_INTEN:       34066 [cnts]
BKG_TIME:        61776.55 SOD {17:09:36.55} UT
BKG_DUR:         16 [sec]
GRB_DATE:        18716 TJD;   233 DOY;   19/08/21
GRB_TIME:        61803.87 SOD {17:10:03.87} UT
GRB_PHI:         -122.75 [deg]
GRB_THETA:        22.26 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.26 [sigma]
IMAGE_SIGNIF:    8.80 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -1  +0  +1 +24  +0 
SUN_POSTN:       150.53d {+10h 02m 06s}  +12.04d {+12d 02' 25"}
SUN_DIST:        104.82 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:       35.66d {+02h 22m 38s}   +9.04d {+09d 02' 23"}
MOON_DIST:       139.49 [deg]
MOON_ILLUM:      69 [%]
GAL_COORDS:      347.70,  8.30 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      253.23,-11.73 [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 = 80.29,-8.08 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 21 Aug 19 17:27:35 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     921722,   Seg_Num: 0
GRB_RA:          250.077d {+16h 40m 18s} (J2000),
                 250.398d {+16h 41m 36s} (current),
                 249.260d {+16h 37m 03s} (1950)
GRB_DEC:         -34.022d {-34d 01' 16"} (J2000),
                 -34.058d {-34d 03' 29"} (current),
                 -33.925d {-33d 55' 28"} (1950)
GRB_DATE:        18716 TJD;   233 DOY;   19/08/21
GRB_TIME:        61803.87 SOD {17:10:03.87} UT
TRIGGER_INDEX:   472
GRB_PHI:         -122.75 [deg]
GRB_THETA:        22.26 [deg]
DELTA_TIME:      -11.00 [sec]
TRIGGER_DUR:     1.408 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.26 [sigma]
IMAGE_SIGNIF:    8.80 [sigma]
LC_URL:          sw00921722000msb.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

Extended TDRSS lc No.4

Plot creation:
Wed Aug 21 13:28:43 EDT 2019