TDRSS lightcurve for Trigger=553847

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 18 Apr 13 19:02:13 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     553847,   Seg_Num: 0
GRB_RA:          149.043d {+09h 56m 10s} (J2000),
                 149.223d {+09h 56m 54s} (current),
                 148.367d {+09h 53m 28s} (1950)
GRB_DEC:         +13.649d {+13d 38' 58"} (J2000),
                 +13.586d {+13d 35' 09"} (current),
                 +13.887d {+13d 53' 15"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1715 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        16400 TJD;   108 DOY;   13/04/18
GRB_TIME:        68453.54 SOD {19:00:53.54} UT
GRB_PHI:           8.94 [deg]
GRB_THETA:        23.43 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    9.78 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +0  +0  +0 +46  +0 
SUN_POSTN:        26.86d {+01h 47m 27s}  +11.08d {+11d 04' 60"}
SUN_DIST:        117.74 [deg]   Sun_angle= -8.2 [hr] (East of Sun)
MOON_POSTN:      122.87d {+08h 11m 29s}  +14.78d {+14d 46' 40"}
MOON_DIST:        25.56 [deg]
MOON_ILLUM:      53 [%]
GAL_COORDS:      222.19, 47.03 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      146.46,  1.01 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 78.79,-18.39 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 18 Apr 13 19:18:04 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     553847,   Seg_Num: 0
GRB_RA:          149.043d {+09h 56m 10s} (J2000),
                 149.223d {+09h 56m 54s} (current),
                 148.367d {+09h 53m 28s} (1950)
GRB_DEC:         +13.649d {+13d 38' 58"} (J2000),
                 +13.586d {+13d 35' 09"} (current),
                 +13.887d {+13d 53' 15"} (1950)
GRB_DATE:        16400 TJD;   108 DOY;   13/04/18
GRB_TIME:        68453.54 SOD {19:00:53.54} UT
TRIGGER_INDEX:   20000
GRB_PHI:           8.94 [deg]
GRB_THETA:        23.43 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    9.78 [sigma]
LC_URL:          sw00553847000msb.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 Apr 18 15:18:44 EDT 2013