TDRSS lightcurve for Trigger=994389

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 03 Sep 20 00:56:55 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     994389,   Seg_Num: 0
GRB_RA:          164.311d {+10h 57m 15s} (J2000),
                 164.613d {+10h 58m 27s} (current),
                 163.577d {+10h 54m 18s} (1950)
GRB_DEC:         +50.501d {+50d 30' 02"} (J2000),
                 +50.390d {+50d 23' 23"} (current),
                 +50.768d {+50d 46' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5081 [cnts]    Image_Peak=573 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       20876 [cnts]
BKG_TIME:        2646.43 SOD {00:44:06.43} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19095 TJD;   247 DOY;   20/09/03
GRB_TIME:        2662.43 SOD {00:44:22.43} UT
GRB_PHI:         -45.30 [deg]
GRB_THETA:        26.79 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     43.72 [sigma]
IMAGE_SIGNIF:    17.74 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +5 -100  +0 -73  +0 
SUN_POSTN:       162.47d {+10h 49m 52s}   +7.44d {+07d 26' 24"}
SUN_DIST:         42.99 [deg]   Sun_angle= -0.1 [hr] (East of Sun)
MOON_POSTN:      352.92d {+23h 31m 41s}   -8.46d {-08d 27' 49"}
MOON_DIST:       137.51 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      158.07, 58.12 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      142.80, 39.76 [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 at longitude,latitude = 261.61,16.81 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 03 Sep 20 01:02:12 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     994389,   Seg_Num: 0
GRB_RA:          164.311d {+10h 57m 15s} (J2000),
                 164.613d {+10h 58m 27s} (current),
                 163.577d {+10h 54m 18s} (1950)
GRB_DEC:         +50.501d {+50d 30' 02"} (J2000),
                 +50.390d {+50d 23' 23"} (current),
                 +50.768d {+50d 46' 05"} (1950)
GRB_DATE:        19095 TJD;   247 DOY;   20/09/03
GRB_TIME:        2662.43 SOD {00:44:22.43} UT
TRIGGER_INDEX:   146
GRB_PHI:         -45.30 [deg]
GRB_THETA:        26.79 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     43.72 [sigma]
IMAGE_SIGNIF:    17.74 [sigma]
LC_URL:          sw00994389000msb.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:
Wed Sep  2 21:02:43 EDT 2020