TDRSS lightcurve for Trigger=518792

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 28 Mar 12 03:10:08 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     518792,   Seg_Num: 0
GRB_RA:          241.550d {+16h 06m 12s} (J2000),
                 241.756d {+16h 07m 01s} (current),
                 240.710d {+16h 02m 50s} (1950)
GRB_DEC:         -39.340d {-39d 20' 24"} (J2000),
                 -39.373d {-39d 22' 20"} (current),
                 -39.206d {-39d 12' 20"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       6269 [cnts]    Image_Peak=191 [image_cnts]
TRIGGER_DUR:     1.408 [sec] 
TRIGGER_INDEX:   472     E_range: 25-100 keV
BKG_INTEN:       61222 [cnts]
BKG_TIME:        11151.96 SOD {03:05:51.96} UT
BKG_DUR:         16 [sec]
GRB_DATE:        16014 TJD;    88 DOY;   12/03/28
GRB_TIME:        11179.03 SOD {03:06:19.03} UT
GRB_PHI:           2.22 [deg]
GRB_THETA:        10.84 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     13.19 [sigma]
IMAGE_SIGNIF:    6.57 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -4  +0  +1 +48  +0 
SUN_POSTN:         7.21d {+00h 28m 50s}   +3.11d {+03d 06' 45"}
SUN_DIST:        118.83 [deg]   Sun_angle= 8.4 [hr] (West of Sun)
MOON_POSTN:       66.25d {+04h 25m 00s}  +21.47d {+21d 28' 16"}
MOON_DIST:       161.69 [deg]
MOON_ILLUM:      25 [%]
GAL_COORDS:      339.02,  9.52 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      247.19,-18.13 [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 a rate trigger.  
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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 28 Mar 12 03:26:22 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     518792,   Seg_Num: 0
GRB_RA:          241.550d {+16h 06m 12s} (J2000),
                 241.756d {+16h 07m 01s} (current),
                 240.710d {+16h 02m 50s} (1950)
GRB_DEC:         -39.340d {-39d 20' 24"} (J2000),
                 -39.373d {-39d 22' 20"} (current),
                 -39.206d {-39d 12' 20"} (1950)
GRB_DATE:        16014 TJD;    88 DOY;   12/03/28
GRB_TIME:        11179.03 SOD {03:06:19.03} UT
TRIGGER_INDEX:   472
GRB_PHI:           2.22 [deg]
GRB_THETA:        10.84 [deg]
DELTA_TIME:      12.00 [sec]
TRIGGER_DUR:     1.408 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     13.19 [sigma]
IMAGE_SIGNIF:    6.57 [sigma]
LC_URL:          sw00518792000msb.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:
Tue Mar 27 23:27:23 EDT 2012