TDRSS lightcurve for Trigger=683906

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 24 Apr 16 11:49:32 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     683906,   Seg_Num: 0
GRB_RA:          319.481d {+21h 17m 55s} (J2000),
                 319.793d {+21h 19m 10s} (current),
                 318.517d {+21h 14m 04s} (1950)
GRB_DEC:         -60.405d {-60d 24' 18"} (J2000),
                 -60.336d {-60d 20' 09"} (current),
                 -60.615d {-60d 36' 54"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5079 [cnts]    Image_Peak=445 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   150     E_range: 25-100 keV
BKG_INTEN:       21796 [cnts]
BKG_TIME:        42535.82 SOD {11:48:55.82} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17502 TJD;   115 DOY;   16/04/24
GRB_TIME:        42547.34 SOD {11:49:07.34} UT
GRB_PHI:         172.69 [deg]
GRB_THETA:        44.36 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     43.50 [sigma]
IMAGE_SIGNIF:    15.78 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +4  +0  +0  +5  +0 
SUN_POSTN:        32.46d {+02h 09m 50s}  +13.10d {+13d 05' 47"}
SUN_DIST:         93.05 [deg]   Sun_angle= 4.8 [hr] (West of Sun)
MOON_POSTN:      238.37d {+15h 53m 29s}  -15.36d {-15d 21' 47"}
MOON_DIST:        72.46 [deg]
MOON_ILLUM:      95 [%]
GAL_COORDS:      334.72,-41.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      300.39,-42.08 [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 = 72.33,-20.07 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=483191350).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 24 Apr 16 12:05:58 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     683906,   Seg_Num: 0
GRB_RA:          319.481d {+21h 17m 55s} (J2000),
                 319.793d {+21h 19m 10s} (current),
                 318.517d {+21h 14m 04s} (1950)
GRB_DEC:         -60.405d {-60d 24' 18"} (J2000),
                 -60.336d {-60d 20' 09"} (current),
                 -60.615d {-60d 36' 54"} (1950)
GRB_DATE:        17502 TJD;   115 DOY;   16/04/24
GRB_TIME:        42547.34 SOD {11:49:07.34} UT
TRIGGER_INDEX:   150
GRB_PHI:         172.69 [deg]
GRB_THETA:        44.36 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     43.50 [sigma]
IMAGE_SIGNIF:    15.78 [sigma]
LC_URL:          sw00683906000msb.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 Apr 24 08:06:03 EDT 2016