TDRSS lightcurve for Trigger=887541

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 03 Feb 19 21:23:59 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     887541,   Seg_Num: 0
GRB_RA:          262.301d {+17h 29m 12s} (J2000),
                 262.623d {+17h 30m 29s} (current),
                 261.458d {+17h 25m 50s} (1950)
GRB_DEC:         -36.267d {-36d 16' 01"} (J2000),
                 -36.281d {-36d 16' 51"} (current),
                 -36.228d {-36d 13' 39"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=4527 [image_cnts]
TRIGGER_DUR:     320.000 [sec]   (=5.3 [min])
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        18517 TJD;    34 DOY;   19/02/03
GRB_TIME:        76697.64 SOD {21:18:17.64} UT
GRB_PHI:         -147.94 [deg]
GRB_THETA:         3.44 [deg]
SOLN_STATUS:     0x10000013
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.65 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -2  +0  +1 -60  +0 
SUN_POSTN:       317.22d {+21h 08m 53s}  -16.41d {-16d 24' 19"}
SUN_DIST:         52.04 [deg]   Sun_angle= 3.6 [hr] (West of Sun)
MOON_POSTN:      306.52d {+20h 26m 05s}  -19.92d {-19d 55' 10"}
MOON_DIST:        41.60 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      351.96, -1.02 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      263.64,-13.00 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 157.80,-10.09 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is spatially(0.00<0.1deg) coincident with the SWIFT_BAT event (trignum=886157).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 03 Feb 19 21:37:13 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     887541,   Seg_Num: 0
GRB_RA:          262.301d {+17h 29m 12s} (J2000),
                 262.623d {+17h 30m 29s} (current),
                 261.458d {+17h 25m 50s} (1950)
GRB_DEC:         -36.267d {-36d 16' 01"} (J2000),
                 -36.281d {-36d 16' 51"} (current),
                 -36.228d {-36d 13' 39"} (1950)
GRB_DATE:        18517 TJD;    34 DOY;   19/02/03
GRB_TIME:        76697.64 SOD {21:18:17.64} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -147.94 [deg]
GRB_THETA:         3.44 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     320.000 [sec]   (=5.3 [min])
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.65 [sigma]
LC_URL:          sw00887541000msb.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:
Sun Feb  3 16:37:42 EST 2019