TDRSS lightcurve for Trigger=817564

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 25 Mar 18 01:53:17 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     817564,   Seg_Num: 0
GRB_RA:          157.432d {+10h 29m 44s} (J2000),
                 157.683d {+10h 30m 44s} (current),
                 156.742d {+10h 26m 58s} (1950)
GRB_DEC:         +24.439d {+24d 26' 21"} (J2000),
                 +24.345d {+24d 20' 43"} (current),
                 +24.696d {+24d 41' 44"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1734 [cnts]    Image_Peak=158 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   124     E_range: 25-100 keV
BKG_INTEN:       16699 [cnts]
BKG_TIME:        6771.32 SOD {01:52:51.32} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18202 TJD;    84 DOY;   18/03/25
GRB_TIME:        6782.84 SOD {01:53:02.84} UT
GRB_PHI:         137.94 [deg]
GRB_THETA:        15.61 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.64 [sigma]
IMAGE_SIGNIF:    10.22 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +2  +0  +0  +0 +80  +0 
SUN_POSTN:         4.01d {+00h 16m 04s}   +1.74d {+01d 44' 17"}
SUN_DIST:        143.48 [deg]   Sun_angle= -10.2 [hr] (East of Sun)
MOON_POSTN:      100.67d {+06h 42m 40s}  +20.25d {+20d 14' 56"}
MOON_DIST:        52.55 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      209.68, 58.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      150.01, 13.92 [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 = 277.06,8.22 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 25 Mar 18 02:09:49 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     817564,   Seg_Num: 0
GRB_RA:          157.432d {+10h 29m 44s} (J2000),
                 157.683d {+10h 30m 44s} (current),
                 156.742d {+10h 26m 58s} (1950)
GRB_DEC:         +24.439d {+24d 26' 21"} (J2000),
                 +24.345d {+24d 20' 43"} (current),
                 +24.696d {+24d 41' 44"} (1950)
GRB_DATE:        18202 TJD;    84 DOY;   18/03/25
GRB_TIME:        6782.84 SOD {01:53:02.84} UT
TRIGGER_INDEX:   124
GRB_PHI:         137.94 [deg]
GRB_THETA:        15.61 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.64 [sigma]
IMAGE_SIGNIF:    10.22 [sigma]
LC_URL:          sw00817564000msb.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:
Sat Mar 24 22:10:03 EDT 2018