TDRSS lightcurve for Trigger=176818

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 11 Jan 06 04:23:18 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     176818,   Seg_Num: 0
GRB_RA:          276.212d {+18h 24m 51s} (J2000),
                 276.264d {+18h 25m 03s} (current),
                 275.785d {+18h 23m 08s} (1950)
GRB_DEC:         +37.602d {+37d 36' 08"} (J2000),
                 +37.606d {+37d 36' 21"} (current),
                 +37.573d {+37d 34' 23"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2953 [cnts]    Image_Peak=149 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   124     E_range: 25-100 keV
BKG_INTEN:       35747 [cnts]
BKG_TIME:        15775.05 SOD {04:22:55.05} UT
BKG_DUR:         8 [sec]
GRB_DATE:        13746 TJD;    11 DOY;   06/01/11
GRB_TIME:        15786.12 SOD {04:23:06.12} UT
GRB_PHI:         -34.11 [deg]
GRB_THETA:        17.98 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     13.49 [sigma]
IMAGE_SIGNIF:    7.47 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2 +12  +0  +0 -47  +1 
SUN_POSTN:       292.49d {+19h 29m 57s}  -21.83d {-21d 49' 43"}
SUN_DIST:         61.36 [deg]
MOON_POSTN:       72.03d {+04h 48m 07s}  +27.07d {+27d 04' 20"}
MOON_DIST:       111.44 [deg]
MOON_ILLUM:      90 [%]
GAL_COORDS:       65.43, 21.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      280.13, 60.82 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
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 = 148.61,7.12 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 11 Jan 06 04:26:46 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     176818,   Seg_Num: 0
GRB_RA:          276.212d {+18h 24m 51s} (J2000),
                 276.264d {+18h 25m 03s} (current),
                 275.785d {+18h 23m 08s} (1950)
GRB_DEC:         +37.602d {+37d 36' 08"} (J2000),
                 +37.606d {+37d 36' 21"} (current),
                 +37.573d {+37d 34' 23"} (1950)
GRB_DATE:        13746 TJD;    11 DOY;   06/01/11
GRB_TIME:        15786.12 SOD {04:23:06.12} UT
TRIGGER_INDEX:   124
GRB_PHI:         -34.11 [deg]
GRB_THETA:        17.98 [deg]
DELTA_TIME:      12.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
LC_URL:          sw00176818000msb.lc
SUN_POSTN:       292.49d {+19h 29m 58s}  -21.83d {-21d 49' 42"}
SUN_DIST:         61.37 [deg]
MOON_POSTN:       72.06d {+04h 48m 15s}  +27.08d {+27d 04' 38"}

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 Jan 10 23:29:04 EST 2006