TDRSS lightcurve for Trigger=974942

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 29 May 20 00:57:35 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     974942,   Seg_Num: 0
GRB_RA:          238.751d {+15h 55m 00s} (J2000),
                 239.032d {+15h 56m 08s} (current),
                 238.065d {+15h 52m 16s} (1950)
GRB_DEC:         -11.057d {-11d 03' 25"} (J2000),
                 -11.116d {-11d 06' 57"} (current),
                 -10.911d {-10d 54' 40"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       39306 [cnts]    Image_Peak=1352 [image_cnts]
TRIGGER_DUR:     12.160 [sec] 
TRIGGER_INDEX:   478     E_range: 25-100 keV
BKG_INTEN:       177054 [cnts]
BKG_TIME:        3302.97 SOD {00:55:02.97} UT
BKG_DUR:         64 [sec]
GRB_DATE:        18998 TJD;   150 DOY;   20/05/29
GRB_TIME:        3395.77 SOD {00:56:35.77} UT
GRB_PHI:          61.47 [deg]
GRB_THETA:        29.00 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     19.26 [sigma]
IMAGE_SIGNIF:    16.33 [sigma]
MERIT_PARAMS:     +1  +0  +0  +4  +2  +4  +0  +0 +97  +0 
SUN_POSTN:        66.38d {+04h 25m 31s}  +21.66d {+21d 39' 40"}
SUN_DIST:        167.32 [deg]   Sun_angle= -11.5 [hr] (East of Sun)
MOON_POSTN:      147.67d {+09h 50m 40s}  +17.67d {+17d 40' 19"}
MOON_DIST:        94.63 [deg]
MOON_ILLUM:      38 [%]
GAL_COORDS:      358.55, 31.37 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      238.96,  9.08 [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 = 40.45,13.14 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(4.0<100sec) coincident with the FERMI_GBM event (trignum=612406604).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 29 May 20 01:13:18 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     974942,   Seg_Num: 0
GRB_RA:          238.751d {+15h 55m 00s} (J2000),
                 239.032d {+15h 56m 08s} (current),
                 238.065d {+15h 52m 16s} (1950)
GRB_DEC:         -11.057d {-11d 03' 25"} (J2000),
                 -11.116d {-11d 06' 57"} (current),
                 -10.911d {-10d 54' 40"} (1950)
GRB_DATE:        18998 TJD;   150 DOY;   20/05/29
GRB_TIME:        3395.77 SOD {00:56:35.77} UT
TRIGGER_INDEX:   478
GRB_PHI:          61.47 [deg]
GRB_THETA:        29.00 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     12.160 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.26 [sigma]
IMAGE_SIGNIF:    16.33 [sigma]
LC_URL:          sw00974942000msb.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:
Thu May 28 21:13:43 EDT 2020