TDRSS lightcurve for Trigger=996503

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Sep 20 01:53:04 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     996503,   Seg_Num: 0
GRB_RA:          168.916d {+11h 15m 40s} (J2000),
                 169.195d {+11h 16m 47s} (current),
                 168.240d {+11h 12m 58s} (1950)
GRB_DEC:         +32.457d {+32d 27' 25"} (J2000),
                 +32.344d {+32d 20' 37"} (current),
                 +32.730d {+32d 43' 47"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       11834 [cnts]    Image_Peak=379 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   298     E_range: 25-100 keV
BKG_INTEN:       98883 [cnts]
BKG_TIME:        6686.34 SOD {01:51:26.34} UT
BKG_DUR:         40 [sec]
GRB_DATE:        19111 TJD;   263 DOY;   20/09/19
GRB_TIME:        6740.93 SOD {01:52:20.93} UT
GRB_PHI:         -120.97 [deg]
GRB_THETA:        25.26 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.45 [sigma]
IMAGE_SIGNIF:    9.51 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  +0 -100  +0 -84  +0 
SUN_POSTN:       176.88d {+11h 47m 30s}   +1.35d {+01d 21' 10"}
SUN_DIST:         31.82 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:      199.52d {+13h 18m 05s}   -3.34d {-03d 20' 19"}
MOON_DIST:        45.83 [deg]
MOON_ILLUM:      4 [%]
GAL_COORDS:      192.73, 68.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      156.37, 25.33 [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 = 127.69,18.89 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Sep 20 02:09:46 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     996503,   Seg_Num: 0
GRB_RA:          168.916d {+11h 15m 40s} (J2000),
                 169.195d {+11h 16m 47s} (current),
                 168.240d {+11h 12m 58s} (1950)
GRB_DEC:         +32.457d {+32d 27' 25"} (J2000),
                 +32.344d {+32d 20' 37"} (current),
                 +32.730d {+32d 43' 47"} (1950)
GRB_DATE:        19111 TJD;   263 DOY;   20/09/19
GRB_TIME:        6740.93 SOD {01:52:20.93} UT
TRIGGER_INDEX:   298
GRB_PHI:         -120.97 [deg]
GRB_THETA:        25.26 [deg]
DELTA_TIME:      -18.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.45 [sigma]
IMAGE_SIGNIF:    9.51 [sigma]
LC_URL:          sw00996503000msb.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:
Fri Sep 18 22:10:05 EDT 2020