TDRSS lightcurve for Trigger=907754

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 10 Jun 19 11:39:02 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     907754,   Seg_Num: 0
GRB_RA:           46.289d {+03h 05m 09s} (J2000),
                  46.527d {+03h 06m 07s} (current),
                  45.675d {+03h 02m 42s} (1950)
GRB_DEC:          -7.666d {-07d 39' 57"} (J2000),
                  -7.591d {-07d 35' 28"} (current),
                  -7.859d {-07d 51' 33"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       27240 [cnts]    Image_Peak=669 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   155     E_range: 50-350 keV
BKG_INTEN:       158503 [cnts]
BKG_TIME:        41248.94 SOD {11:27:28.94} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18644 TJD;   161 DOY;   19/06/10
GRB_TIME:        41265.71 SOD {11:27:45.71} UT
GRB_PHI:         -23.00 [deg]
GRB_THETA:        13.60 [deg]
SOLN_STATUS:     0x20000043
RATE_SIGNIF:     45.86 [sigma]
IMAGE_SIGNIF:    9.91 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  +0 -100  +0 -72  +0 
SUN_POSTN:        78.39d {+05h 13m 35s}  +23.01d {+23d 00' 26"}
SUN_DIST:         43.68 [deg]   Sun_angle= 2.1 [hr] (West of Sun)
MOON_POSTN:      174.95d {+11h 39m 49s}   +7.33d {+07d 20' 00"}
MOON_DIST:       128.89 [deg]
MOON_ILLUM:      53 [%]
GAL_COORDS:      187.60,-52.84 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       41.42,-24.04 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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 during a high background rate interval.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 10 Jun 19 11:44:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     907754,   Seg_Num: 0
GRB_RA:           46.289d {+03h 05m 09s} (J2000),
                  46.527d {+03h 06m 07s} (current),
                  45.675d {+03h 02m 42s} (1950)
GRB_DEC:          -7.666d {-07d 39' 57"} (J2000),
                  -7.591d {-07d 35' 28"} (current),
                  -7.859d {-07d 51' 33"} (1950)
GRB_DATE:        18644 TJD;   161 DOY;   19/06/10
GRB_TIME:        41265.71 SOD {11:27:45.71} UT
TRIGGER_INDEX:   155
GRB_PHI:         -23.00 [deg]
GRB_THETA:        13.60 [deg]
DELTA_TIME:      -75.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x43
RATE_SIGNIF:     45.86 [sigma]
IMAGE_SIGNIF:    9.91 [sigma]
LC_URL:          sw00907754000msb.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:
Mon Jun 10 07:45:08 EDT 2019