TDRSS lightcurve for Trigger=548276

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 11 Feb 13 03:48:50 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     548276,   Seg_Num: 0
GRB_RA:          147.523d {+09h 50m 05s} (J2000),
                 147.655d {+09h 50m 37s} (current),
                 147.019d {+09h 48m 04s} (1950)
GRB_DEC:         -42.339d {-42d 20' 18"} (J2000),
                 -42.400d {-42d 24' 00"} (current),
                 -42.104d {-42d 06' 15"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       29041 [cnts]    Image_Peak=410 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   335     E_range: 25-100 keV
BKG_INTEN:       211665 [cnts]
BKG_TIME:        12901.79 SOD {03:35:01.79} UT
BKG_DUR:         64 [sec]
GRB_DATE:        16334 TJD;    42 DOY;   13/02/11
GRB_TIME:        12992.16 SOD {03:36:32.16} UT
GRB_PHI:          39.09 [deg]
GRB_THETA:        34.10 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.38 [sigma]
IMAGE_SIGNIF:    7.01 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +2  -3  +0  +1 +55  +0 
SUN_POSTN:       324.93d {+21h 39m 44s}  -13.99d {-13d 59' 10"}
SUN_DIST:        123.56 [deg]   Sun_angle= 11.8 [hr] (West of Sun)
MOON_POSTN:      334.01d {+22h 16m 02s}   -5.56d {-05d 33' 44"}
MOON_DIST:       131.69 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      270.78,  8.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      171.23,-50.88 [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:        This trigger occurred at longitude,latitude = 11.68,-4.32 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 11 Feb 13 03:58:29 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     548276,   Seg_Num: 0
GRB_RA:          147.523d {+09h 50m 05s} (J2000),
                 147.655d {+09h 50m 37s} (current),
                 147.019d {+09h 48m 04s} (1950)
GRB_DEC:         -42.339d {-42d 20' 18"} (J2000),
                 -42.400d {-42d 24' 00"} (current),
                 -42.104d {-42d 06' 15"} (1950)
GRB_DATE:        16334 TJD;    42 DOY;   13/02/11
GRB_TIME:        12992.16 SOD {03:36:32.16} UT
TRIGGER_INDEX:   335
GRB_PHI:          39.09 [deg]
GRB_THETA:        34.10 [deg]
DELTA_TIME:      -76.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.38 [sigma]
IMAGE_SIGNIF:    7.01 [sigma]
LC_URL:          sw00548276000msb.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

Plot creation:
Sun Feb 10 22:59:23 EST 2013