TDRSS lightcurve for Trigger=981957

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Jul 20 11:04:59 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     981957,   Seg_Num: 0
GRB_RA:          285.977d {+19h 03m 54s} (J2000),
                 286.240d {+19h 04m 58s} (current),
                 285.335d {+19h 01m 20s} (1950)
GRB_DEC:          -0.136d {-00d 08' 09"} (J2000),
                  -0.104d {-00d 06' 15"} (current),
                  -0.211d {-00d 12' 40"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4875 [cnts]    Image_Peak=118 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   155     E_range: 50-350 keV
BKG_INTEN:       14472 [cnts]
BKG_TIME:        39862.73 SOD {11:04:22.73} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19041 TJD;   193 DOY;   20/07/11
GRB_TIME:        39876.49 SOD {11:04:36.49} UT
GRB_PHI:          99.03 [deg]
GRB_THETA:        38.87 [deg]
SOLN_STATUS:     0x20000083
RATE_SIGNIF:     65.96 [sigma]
IMAGE_SIGNIF:    6.78 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  -3  +0  +1 +92  +0 
SUN_POSTN:       111.22d {+07h 24m 52s}  +22.00d {+22d 00' 12"}
SUN_DIST:        157.57 [deg]   Sun_angle= -11.7 [hr] (East of Sun)
MOON_POSTN:        4.86d {+00h 19m 25s}   -3.61d {-03d 36' 33"}
MOON_DIST:        78.63 [deg]
MOON_ILLUM:      64 [%]
GAL_COORDS:       34.23, -2.84 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      287.31, 22.35 [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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 209.21,20.46 [deg].  
COMMENTS:           

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Jul 20 11:21:17 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     981957,   Seg_Num: 0
GRB_RA:          285.977d {+19h 03m 54s} (J2000),
                 286.240d {+19h 04m 58s} (current),
                 285.335d {+19h 01m 20s} (1950)
GRB_DEC:          -0.136d {-00d 08' 09"} (J2000),
                  -0.104d {-00d 06' 15"} (current),
                  -0.211d {-00d 12' 40"} (1950)
GRB_DATE:        19041 TJD;   193 DOY;   20/07/11
GRB_TIME:        39876.49 SOD {11:04:36.49} UT
TRIGGER_INDEX:   155
GRB_PHI:          99.03 [deg]
GRB_THETA:        38.87 [deg]
DELTA_TIME:      64.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     65.96 [sigma]
IMAGE_SIGNIF:    6.78 [sigma]
LC_URL:          sw00981957000msb.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:
Sat Jul 11 07:21:47 EDT 2020