TDRSS lightcurve for Trigger=553918

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 13:32:35 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     553918,   Seg_Num: 0
GRB_RA:          355.271d {+23h 41m 05s} (J2000),
                 355.440d {+23h 41m 46s} (current),
                 354.634d {+23h 38m 32s} (1950)
GRB_DEC:          +9.977d {+09d 58' 38"} (J2000),
                 +10.051d {+10d 03' 03"} (current),
                  +9.700d {+09d 41' 59"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1589 [image_cnts]
TRIGGER_DUR:     112.000 [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:        48629.54 SOD {13:30:29.54} UT
GRB_PHI:         -133.28 [deg]
GRB_THETA:        23.28 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.58 [sigma]
MERIT_PARAMS:     +1  +0  +0  +7  +1  -2 -100  +0 -85  +0 
SUN_POSTN:        27.58d {+01h 50m 20s}  +11.35d {+11d 20' 59"}
SUN_DIST:         31.59 [deg]   Sun_angle= 2.1 [hr] (West of Sun)
MOON_POSTN:      132.22d {+08h 48m 52s}  +12.35d {+12d 20' 57"}
MOON_DIST:       131.57 [deg]
MOON_ILLUM:      60 [%]
GAL_COORDS:       95.86,-49.16 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      359.67, 11.03 [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 = 357.27,13.71 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 19 Apr 13 13:47:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     553918,   Seg_Num: 0
GRB_RA:          355.271d {+23h 41m 05s} (J2000),
                 355.440d {+23h 41m 46s} (current),
                 354.634d {+23h 38m 32s} (1950)
GRB_DEC:          +9.977d {+09d 58' 38"} (J2000),
                 +10.051d {+10d 03' 03"} (current),
                  +9.700d {+09d 41' 59"} (1950)
GRB_DATE:        16401 TJD;   109 DOY;   13/04/19
GRB_TIME:        48629.54 SOD {13:30:29.54} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -133.28 [deg]
GRB_THETA:        23.28 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     112.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.58 [sigma]
LC_URL:          sw00553918000msb.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 09:48:28 EDT 2013