TDRSS lightcurve for Trigger=553996

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 20 Apr 13 12:56:47 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     553996,   Seg_Num: 0
GRB_RA:          183.120d {+12h 12m 29s} (J2000),
                 183.284d {+12h 13m 08s} (current),
                 182.498d {+12h 10m 00s} (1950)
GRB_DEC:         +54.386d {+54d 23' 11"} (J2000),
                 +54.312d {+54d 18' 45"} (current),
                 +54.664d {+54d 39' 52"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1787 [cnts]    Image_Peak=124 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   124     E_range: 25-100 keV
BKG_INTEN:       20512 [cnts]
BKG_TIME:        46573.53 SOD {12:56:13.53} UT
BKG_DUR:         8 [sec]
GRB_DATE:        16402 TJD;   110 DOY;   13/04/20
GRB_TIME:        46591.07 SOD {12:56:31.07} UT
GRB_PHI:         162.99 [deg]
GRB_THETA:         8.62 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     12.64 [sigma]
IMAGE_SIGNIF:    7.39 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +2  -3  +0  +0 +35  +0 
SUN_POSTN:        28.49d {+01h 53m 58s}  +11.68d {+11d 41' 02"}
SUN_DIST:        110.63 [deg]   Sun_angle= -10.3 [hr] (East of Sun)
MOON_POSTN:      144.02d {+09h 36m 06s}   +8.76d {+08d 45' 41"}
MOON_DIST:        55.24 [deg]
MOON_ILLUM:      69 [%]
GAL_COORDS:      134.97, 61.82 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      153.15, 49.33 [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 = 221.15,0.68 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=388155395).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 20 Apr 13 13:22:20 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     553996,   Seg_Num: 0
GRB_RA:          183.120d {+12h 12m 29s} (J2000),
                 183.284d {+12h 13m 08s} (current),
                 182.498d {+12h 10m 00s} (1950)
GRB_DEC:         +54.386d {+54d 23' 11"} (J2000),
                 +54.312d {+54d 18' 45"} (current),
                 +54.664d {+54d 39' 52"} (1950)
GRB_DATE:        16402 TJD;   110 DOY;   13/04/20
GRB_TIME:        46591.07 SOD {12:56:31.07} UT
TRIGGER_INDEX:   124
GRB_PHI:         162.99 [deg]
GRB_THETA:         8.62 [deg]
DELTA_TIME:      6.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.64 [sigma]
IMAGE_SIGNIF:    7.39 [sigma]
LC_URL:          sw00553996000msb.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:
Sat Apr 20 09:22:43 EDT 2013