TDRSS lightcurve for Trigger=684098

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 25 Apr 16 23:26:26 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     684098,   Seg_Num: 0
GRB_RA:          280.313d {+18h 41m 15s} (J2000),
                 280.647d {+18h 42m 35s} (current),
                 279.290d {+18h 37m 10s} (1950)
GRB_DEC:         -54.359d {-54d 21' 33"} (J2000),
                 -54.343d {-54d 20' 34"} (current),
                 -54.407d {-54d 24' 24"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1681 [cnts]    Image_Peak=178 [image_cnts]
TRIGGER_DUR:     0.256 [sec] 
TRIGGER_INDEX:   123     E_range: 25-100 keV
BKG_INTEN:       23725 [cnts]
BKG_TIME:        84359.82 SOD {23:25:59.82} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17503 TJD;   116 DOY;   16/04/25
GRB_TIME:        84371.34 SOD {23:26:11.34} UT
GRB_PHI:         -126.98 [deg]
GRB_THETA:        24.65 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     32.95 [sigma]
IMAGE_SIGNIF:    11.80 [sigma]
MERIT_PARAMS:     +1  +0  +0  -2  +2  +1  +0  +0 +41  +0 
SUN_POSTN:        33.86d {+02h 15m 25s}  +13.58d {+13d 34' 39"}
SUN_DIST:        114.46 [deg]   Sun_angle= 7.5 [hr] (West of Sun)
MOON_POSTN:      256.84d {+17h 07m 21s}  -17.71d {-17d 42' 34"}
MOON_DIST:        40.96 [deg]
MOON_ILLUM:      88 [%]
GAL_COORDS:      341.31,-20.34 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      277.00,-31.17 [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 = 12.15,15.67 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 25 Apr 16 23:43:54 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     684098,   Seg_Num: 0
GRB_RA:          280.313d {+18h 41m 15s} (J2000),
                 280.647d {+18h 42m 35s} (current),
                 279.290d {+18h 37m 10s} (1950)
GRB_DEC:         -54.359d {-54d 21' 33"} (J2000),
                 -54.343d {-54d 20' 34"} (current),
                 -54.407d {-54d 24' 24"} (1950)
GRB_DATE:        17503 TJD;   116 DOY;   16/04/25
GRB_TIME:        84371.34 SOD {23:26:11.34} UT
TRIGGER_INDEX:   123
GRB_PHI:         -126.98 [deg]
GRB_THETA:        24.65 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     0.256 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     32.95 [sigma]
IMAGE_SIGNIF:    11.80 [sigma]
LC_URL:          sw00684098000msb.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

Plot creation:
Mon Apr 25 19:44:03 EDT 2016