TDRSS lightcurve for Trigger=773509

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 21 Sep 17 14:29:35 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     773509,   Seg_Num: 0
GRB_RA:           26.849d {+01h 47m 24s} (J2000),
                  27.103d {+01h 48m 25s} (current),
                  26.135d {+01h 44m 32s} (1950)
GRB_DEC:         +30.874d {+30d 52' 27"} (J2000),
                 +30.962d {+30d 57' 44"} (current),
                 +30.625d {+30d 37' 30"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       10937 [cnts]    Image_Peak=392 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   298     E_range: 25-100 keV
BKG_INTEN:       88213 [cnts]
BKG_TIME:        52068.27 SOD {14:27:48.27} UT
BKG_DUR:         40 [sec]
GRB_DATE:        18017 TJD;   264 DOY;   17/09/21
GRB_TIME:        52128.50 SOD {14:28:48.50} UT
GRB_PHI:          86.42 [deg]
GRB_THETA:        14.00 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     16.88 [sigma]
IMAGE_SIGNIF:    10.20 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  +0  +0  +0 +75  +0 
SUN_POSTN:       178.90d {+11h 55m 35s}   +0.48d {+00d 28' 42"}
SUN_DIST:        138.71 [deg]   Sun_angle= 10.1 [hr] (West of Sun)
MOON_POSTN:      195.83d {+13h 03m 20s}   -2.30d {-02d 18' 04"}
MOON_DIST:       149.42 [deg]
MOON_ILLUM:      2 [%]
GAL_COORDS:      136.86,-30.48 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       36.17, 18.46 [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 = 149.16,-2.60 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 21 Sep 17 14:49:06 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     773509,   Seg_Num: 0
GRB_RA:           26.849d {+01h 47m 24s} (J2000),
                  27.103d {+01h 48m 25s} (current),
                  26.135d {+01h 44m 32s} (1950)
GRB_DEC:         +30.874d {+30d 52' 27"} (J2000),
                 +30.962d {+30d 57' 44"} (current),
                 +30.625d {+30d 37' 30"} (1950)
GRB_DATE:        18017 TJD;   264 DOY;   17/09/21
GRB_TIME:        52128.50 SOD {14:28:48.50} UT
TRIGGER_INDEX:   298
GRB_PHI:          86.42 [deg]
GRB_THETA:        14.00 [deg]
DELTA_TIME:      57.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     16.88 [sigma]
IMAGE_SIGNIF:    10.20 [sigma]
LC_URL:          sw00773509000msb.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 Sep 21 10:49:27 EDT 2017