TDRSS lightcurve for Trigger=773893

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 24 Sep 17 10:22:58 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     773893,   Seg_Num: 0
GRB_RA:          233.507d {+15h 34m 02s} (J2000),
                 233.858d {+15h 35m 26s} (current),
                 232.520d {+15h 30m 05s} (1950)
GRB_DEC:         -57.356d {-57d 21' 22"} (J2000),
                 -57.415d {-57d 24' 52"} (current),
                 -57.189d {-57d 11' 19"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=2096 [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:        18020 TJD;   267 DOY;   17/09/24
GRB_TIME:        36596.26 SOD {10:09:56.26} UT
GRB_PHI:          15.21 [deg]
GRB_THETA:        16.54 [deg]
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    10.85 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +0  +0  +1 -34  +0 
SUN_POSTN:       181.44d {+12h 05m 45s}   -0.62d {-00d 37' 21"}
SUN_DIST:         70.27 [deg]   Sun_angle= -3.5 [hr] (East of Sun)
MOON_POSTN:      230.12d {+15h 20m 30s}  -13.08d {-13d 04' 38"}
MOON_DIST:        44.43 [deg]
MOON_ILLUM:      18 [%]
GAL_COORDS:      323.51, -1.13 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      246.36,-36.87 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 13.61,3.39 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 24 Sep 17 10:28:57 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     773893,   Seg_Num: 0
GRB_RA:          233.507d {+15h 34m 02s} (J2000),
                 233.858d {+15h 35m 26s} (current),
                 232.520d {+15h 30m 05s} (1950)
GRB_DEC:         -57.356d {-57d 21' 22"} (J2000),
                 -57.415d {-57d 24' 52"} (current),
                 -57.189d {-57d 11' 19"} (1950)
GRB_DATE:        18020 TJD;   267 DOY;   17/09/24
GRB_TIME:        36596.26 SOD {10:09:56.26} UT
TRIGGER_INDEX:   20000
GRB_PHI:          15.21 [deg]
GRB_THETA:        16.54 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    10.85 [sigma]
LC_URL:          sw00773893000msb.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:
Sun Sep 24 06:29:52 EDT 2017