TDRSS lightcurve for Trigger=931484

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 25 Oct 19 18:16:28 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     931484,   Seg_Num: 0
GRB_RA:          139.771d {+09h 19m 05s} (J2000),
                 140.026d {+09h 20m 06s} (current),
                 139.126d {+09h 16m 30s} (1950)
GRB_DEC:          +1.384d {+01d 23' 02"} (J2000),
                  +1.299d {+01d 17' 58"} (current),
                  +1.595d {+01d 35' 43"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       218 [cnts]    Image_Peak=34 [image_cnts]
TRIGGER_DUR:     0.064 [sec] 
TRIGGER_INDEX:   10431     E_range: 50-350 keV
BKG_INTEN:       16541 [cnts]
BKG_TIME:        65760.19 SOD {18:16:00.19} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18781 TJD;   298 DOY;   19/10/25
GRB_TIME:        65772.99 SOD {18:16:12.99} UT
GRB_PHI:         156.89 [deg]
GRB_THETA:        17.02 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     8.42 [sigma]
IMAGE_SIGNIF:    6.56 [sigma]
MERIT_PARAMS:     +1  +0  +0  -4  +3  -4  +0  +0 -33  +0 
SUN_POSTN:       209.87d {+13h 59m 28s}  -12.18d {-12d 10' 53"}
SUN_DIST:         70.61 [deg]   Sun_angle= 4.7 [hr] (West of Sun)
MOON_POSTN:      180.82d {+12h 03m 16s}   +5.03d {+05d 01' 43"}
MOON_DIST:        40.89 [deg]
MOON_ILLUM:      8 [%]
GAL_COORDS:      230.45, 33.05 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      141.74,-13.57 [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 = 213.23,-19.64 [deg].  
COMMENTS:        This AT will self-cancel at the end of the first orbit (ie I_signif<7.0 && Trig_dur<65msec).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 25 Oct 19 18:24:03 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     931484,   Seg_Num: 0
GRB_RA:          139.771d {+09h 19m 05s} (J2000),
                 140.026d {+09h 20m 06s} (current),
                 139.126d {+09h 16m 30s} (1950)
GRB_DEC:          +1.384d {+01d 23' 02"} (J2000),
                  +1.299d {+01d 17' 58"} (current),
                  +1.595d {+01d 35' 43"} (1950)
GRB_DATE:        18781 TJD;   298 DOY;   19/10/25
GRB_TIME:        65772.99 SOD {18:16:12.99} UT
TRIGGER_INDEX:   10431
GRB_PHI:         156.89 [deg]
GRB_THETA:        17.02 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     0.064 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     8.42 [sigma]
IMAGE_SIGNIF:    6.56 [sigma]
LC_URL:          sw00931484000msb.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

Plot creation:
Fri Oct 25 14:24:23 EDT 2019