TDRSS lightcurve for Trigger=546177

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Jan 13 07:51:08 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     546177,   Seg_Num: 0
GRB_RA:          272.620d {+18h 10m 29s} (J2000),
                 272.813d {+18h 11m 15s} (current),
                 271.884d {+18h 07m 32s} (1950)
GRB_DEC:         -19.059d {-19d 03' 30"} (J2000),
                 -19.055d {-19d 03' 18"} (current),
                 -19.070d {-19d 04' 10"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=5642 [image_cnts]
TRIGGER_DUR:     704.000 [sec]   (=11.7 [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:        16309 TJD;    17 DOY;   13/01/17
GRB_TIME:        27485.88 SOD {07:38:05.88} UT
GRB_PHI:         -75.96 [deg]
GRB_THETA:        24.58 [deg]
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.01 [sigma]
MERIT_PARAMS:     +0  +0 +124  +7  +1  -3 -100  +1 -90  +0 
SUN_POSTN:       299.43d {+19h 57m 42s}  -20.69d {-20d 41' 06"}
SUN_DIST:         25.06 [deg]   Sun_angle= 1.8 [hr] (West of Sun)
MOON_POSTN:        6.36d {+00h 25m 27s}   +6.74d {+06d 44' 09"}
MOON_DIST:        95.53 [deg]
MOON_ILLUM:      34 [%]
GAL_COORDS:       11.39,  0.04 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      272.48,  4.36 [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=15752=(null) (probably an AT_Slot).  
COMMENTS:        This matches a source in the ground catalog: XTE_J1810-189,   delta=0.015 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 97.08,11.86 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Jan 13 07:58:45 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     546177,   Seg_Num: 0
GRB_RA:          272.620d {+18h 10m 29s} (J2000),
                 272.813d {+18h 11m 15s} (current),
                 271.884d {+18h 07m 32s} (1950)
GRB_DEC:         -19.059d {-19d 03' 30"} (J2000),
                 -19.055d {-19d 03' 18"} (current),
                 -19.070d {-19d 04' 10"} (1950)
GRB_DATE:        16309 TJD;    17 DOY;   13/01/17
GRB_TIME:        27485.88 SOD {07:38:05.88} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -75.96 [deg]
GRB_THETA:        24.58 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     704.000 [sec]   (=11.7 [min])
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.01 [sigma]
LC_URL:          sw00546177000msb.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:
Thu Jan 17 02:59:44 EST 2013