TDRSS lightcurve for Trigger=552677

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 02 Apr 13 12:14:15 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     552677,   Seg_Num: 0
GRB_RA:          250.424d {+16h 41m 42s} (J2000),
                 250.664d {+16h 42m 39s} (current),
                 249.517d {+16h 38m 04s} (1950)
GRB_DEC:         -45.561d {-45d 33' 38"} (J2000),
                 -45.585d {-45d 35' 07"} (current),
                 -45.466d {-45d 27' 55"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=5685 [image_cnts]
TRIGGER_DUR:     992.000 [sec]   (=16.5 [min])
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:        16384 TJD;    92 DOY;   13/04/02
GRB_TIME:        42989.60 SOD {11:56:29.60} UT
GRB_PHI:         163.10 [deg]
GRB_THETA:        28.86 [deg]
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.39 [sigma]
MERIT_PARAMS:     +0  +0 +123  +8  +1  -4  +0  +1 +42  +1 
SUN_POSTN:        11.89d {+00h 47m 33s}   +5.10d {+05d 06' 05"}
SUN_DIST:        115.14 [deg]   Sun_angle= 8.1 [hr] (West of Sun)
MOON_POSTN:      274.03d {+18h 16m 08s}  -19.64d {-19d 38' 23"}
MOON_DIST:        32.31 [deg]
MOON_ILLUM:      58 [%]
GAL_COORDS:      339.16,  0.50 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      255.22,-23.12 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This matches a source in the on-board catalog: Num=10632=IGR16418-4532,   delta=0.033 [deg].  
COMMENTS:        This matches a source in the ground catalog: IGRJ16418-4532,   delta=0.033 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:           

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 02 Apr 13 12:36:25 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     552677,   Seg_Num: 0
GRB_RA:          250.424d {+16h 41m 42s} (J2000),
                 250.664d {+16h 42m 39s} (current),
                 249.517d {+16h 38m 04s} (1950)
GRB_DEC:         -45.561d {-45d 33' 38"} (J2000),
                 -45.585d {-45d 35' 07"} (current),
                 -45.466d {-45d 27' 55"} (1950)
GRB_DATE:        16384 TJD;    92 DOY;   13/04/02
GRB_TIME:        42989.60 SOD {11:56:29.60} UT
TRIGGER_INDEX:   20000
GRB_PHI:         163.10 [deg]
GRB_THETA:        28.86 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     992.000 [sec]   (=16.5 [min])
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.39 [sigma]
LC_URL:          sw00552677000msb.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

Plot creation:
Tue Apr  2 08:37:07 EDT 2013