TDRSS lightcurve for Trigger=553930

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 19 Apr 13 17:25:55 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     553930,   Seg_Num: 0
GRB_RA:          203.650d {+13h 34m 36s} (J2000),
                 203.798d {+13h 35m 12s} (current),
                 203.094d {+13h 32m 23s} (1950)
GRB_DEC:         +37.239d {+37d 14' 20"} (J2000),
                 +37.171d {+37d 10' 16"} (current),
                 +37.494d {+37d 29' 40"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1035 [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:        16401 TJD;   109 DOY;   13/04/19
GRB_TIME:        62677.54 SOD {17:24:37.54} UT
GRB_PHI:         -131.60 [deg]
GRB_THETA:        15.20 [deg]
SOLN_STATUS:     0x1299D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.99 [sigma]
MERIT_PARAMS:     +0  +0 +123  +6  +1  -5  +0  +0 +65  +1 
SUN_POSTN:        27.73d {+01h 50m 56s}  +11.41d {+11d 24' 20"}
SUN_DIST:        131.28 [deg]   Sun_angle= -11.7 [hr] (East of Sun)
MOON_POSTN:      134.18d {+08h 56m 43s}  +11.79d {+11d 47' 27"}
MOON_DIST:        66.73 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       83.61, 76.40 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      184.10, 43.02 [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 is a low-flux event whose position matches one of the nearby galaxy sources in the on-board catalog!  
COMMENTS:        This matches a source in the on-board catalog: Num=11014=HR 5110,   delta=0.068 [deg].  
COMMENTS:        This matches a source in the ground catalog: HR 5110,   delta=0.068 [deg].  
COMMENTS:        There is a bright star (mag=4.98) 4.10 arcmin from this position.  
COMMENTS:        This is a GRB in nearby galaxy or it is noise.  
COMMENTS:        This trigger occurred at longitude,latitude = 92.91,-18.76 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 19 Apr 13 17:41:31 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     553930,   Seg_Num: 0
GRB_RA:          203.650d {+13h 34m 36s} (J2000),
                 203.798d {+13h 35m 12s} (current),
                 203.094d {+13h 32m 23s} (1950)
GRB_DEC:         +37.239d {+37d 14' 20"} (J2000),
                 +37.171d {+37d 10' 16"} (current),
                 +37.494d {+37d 29' 40"} (1950)
GRB_DATE:        16401 TJD;   109 DOY;   13/04/19
GRB_TIME:        62677.54 SOD {17:24:37.54} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -131.60 [deg]
GRB_THETA:        15.20 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x299D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.99 [sigma]
LC_URL:          sw00553930000msb.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:
Fri Apr 19 13:42:23 EDT 2013