TDRSS lightcurve for Trigger=997453

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 25 Sep 20 21:50:49 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     997453,   Seg_Num: 0
GRB_RA:          246.851d {+16h 27m 24s} (J2000),
                 246.602d {+16h 26m 24s} (current),
                 247.466d {+16h 29m 52s} (1950)
GRB_DEC:         +78.394d {+78d 23' 39"} (J2000),
                 +78.348d {+78d 20' 55"} (current),
                 +78.502d {+78d 30' 08"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2918 [cnts]    Image_Peak=148 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   147     E_range: 25-100 keV
BKG_INTEN:       18121 [cnts]
BKG_TIME:        78622.30 SOD {21:50:22.30} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19117 TJD;   269 DOY;   20/09/25
GRB_TIME:        78637.02 SOD {21:50:37.02} UT
GRB_PHI:         126.29 [deg]
GRB_THETA:        29.05 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.87 [sigma]
IMAGE_SIGNIF:    7.68 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -2  +0  +0  -6  +0 
SUN_POSTN:       183.01d {+12h 12m 03s}   -1.30d {-01d 18' 16"}
SUN_DIST:         86.13 [deg]   Sun_angle= -4.2 [hr] (East of Sun)
MOON_POSTN:      298.21d {+19h 52m 51s}  -23.59d {-23d 35' 28"}
MOON_DIST:       106.08 [deg]
MOON_ILLUM:      69 [%]
GAL_COORDS:      111.68, 33.50 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      109.78, 76.48 [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 = 147.39,20.24 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 25 Sep 20 22:09:37 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     997453,   Seg_Num: 0
GRB_RA:          246.851d {+16h 27m 24s} (J2000),
                 246.602d {+16h 26m 24s} (current),
                 247.466d {+16h 29m 52s} (1950)
GRB_DEC:         +78.394d {+78d 23' 39"} (J2000),
                 +78.348d {+78d 20' 55"} (current),
                 +78.502d {+78d 30' 08"} (1950)
GRB_DATE:        19117 TJD;   269 DOY;   20/09/25
GRB_TIME:        78637.02 SOD {21:50:37.02} UT
TRIGGER_INDEX:   147
GRB_PHI:         126.29 [deg]
GRB_THETA:        29.05 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.87 [sigma]
IMAGE_SIGNIF:    7.68 [sigma]
LC_URL:          sw00997453000msb.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 25 18:10:03 EDT 2020