TDRSS lightcurve for Trigger=515277

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 18 Feb 12 00:50:17 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     515277,   Seg_Num: 0
GRB_RA:          319.758d {+21h 19m 02s} (J2000),
                 319.934d {+21h 19m 44s} (current),
                 319.031d {+21h 16m 07s} (1950)
GRB_DEC:         -25.450d {-25d 27' 00"} (J2000),
                 -25.399d {-25d 23' 55"} (current),
                 -25.662d {-25d 39' 41"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       37474 [cnts]    Image_Peak=452 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   477     E_range: 25-100 keV
BKG_INTEN:       248151 [cnts]
BKG_TIME:        2872.09 SOD {00:47:52.09} UT
BKG_DUR:         64 [sec]
GRB_DATE:        15975 TJD;    49 DOY;   12/02/18
GRB_TIME:        2962.14 SOD {00:49:22.14} UT
GRB_PHI:         -54.03 [deg]
GRB_THETA:        48.60 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     27.03 [sigma]
IMAGE_SIGNIF:    9.67 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +2  +0 -100  +0 -95  +0 
SUN_POSTN:       330.90d {+22h 03m 37s}  -11.90d {-11d 54' 12"}
SUN_DIST:         17.01 [deg]   Sun_angle= 0.7 [hr] (West of Sun)
MOON_POSTN:      281.89d {+18h 47m 33s}  -20.40d {-20d 24' 05"}
MOON_DIST:        35.29 [deg]
MOON_ILLUM:      16 [%]
GAL_COORDS:       22.32,-42.72 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      314.31, -9.34 [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 = 180.10,3.10 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 18 Feb 12 01:06:18 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     515277,   Seg_Num: 0
GRB_RA:          319.758d {+21h 19m 02s} (J2000),
                 319.934d {+21h 19m 44s} (current),
                 319.031d {+21h 16m 07s} (1950)
GRB_DEC:         -25.450d {-25d 27' 00"} (J2000),
                 -25.399d {-25d 23' 55"} (current),
                 -25.662d {-25d 39' 41"} (1950)
GRB_DATE:        15975 TJD;    49 DOY;   12/02/18
GRB_TIME:        2962.14 SOD {00:49:22.14} UT
TRIGGER_INDEX:   477
GRB_PHI:         -54.03 [deg]
GRB_THETA:        48.60 [deg]
DELTA_TIME:      -44.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     27.03 [sigma]
IMAGE_SIGNIF:    9.67 [sigma]
LC_URL:          sw00515277000msb.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:
Fri Feb 17 20:06:23 EST 2012