TDRSS lightcurve for Trigger=518853

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 29 Mar 12 02:35:13 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     518853,   Seg_Num: 0
GRB_RA:          188.528d {+12h 34m 07s} (J2000),
                 188.705d {+12h 34m 49s} (current),
                 187.809d {+12h 31m 14s} (1950)
GRB_DEC:         -63.420d {-63d 25' 12"} (J2000),
                 -63.488d {-63d 29' 15"} (current),
                 -63.145d {-63d 08' 40"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=15951 [image_cnts]
TRIGGER_DUR:     712.000 [sec]   (=11.9 [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:        16015 TJD;    89 DOY;   12/03/29
GRB_TIME:        8527.95 SOD {02:22:07.95} UT
GRB_PHI:         -166.56 [deg]
GRB_THETA:        25.80 [deg]
SOLN_STATUS:     0x1D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    18.48 [sigma]
MERIT_PARAMS:     +0  +0 +95  +8  +1  +6  +0  +1 +50  +0 
SUN_POSTN:         8.10d {+00h 32m 23s}   +3.49d {+03d 29' 34"}
SUN_DIST:        120.00 [deg]   Sun_angle= 12.0 [hr] (West of Sun)
MOON_POSTN:       78.75d {+05h 14m 59s}  +21.83d {+21d 49' 54"}
MOON_DIST:       118.31 [deg]
MOON_ILLUM:      34 [%]
GAL_COORDS:      301.00, -0.61 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      223.27,-52.57 [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=10613=IGR12349-6434,   delta=1.148 [deg].  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 291.30,20.22 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 29 Mar 12 02:47:45 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     518853,   Seg_Num: 0
GRB_RA:          188.528d {+12h 34m 07s} (J2000),
                 188.705d {+12h 34m 49s} (current),
                 187.809d {+12h 31m 14s} (1950)
GRB_DEC:         -63.420d {-63d 25' 12"} (J2000),
                 -63.488d {-63d 29' 15"} (current),
                 -63.145d {-63d 08' 40"} (1950)
GRB_DATE:        16015 TJD;    89 DOY;   12/03/29
GRB_TIME:        8527.95 SOD {02:22:07.95} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -166.56 [deg]
GRB_THETA:        25.80 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     712.000 [sec]   (=11.9 [min])
SOLN_STATUS:     0x1D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    18.48 [sigma]
LC_URL:          sw00518853000msb.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:
Wed Mar 28 22:48:04 EDT 2012