TDRSS lightcurve for Trigger=637899

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 13 Apr 15 13:56:16 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     637899,   Seg_Num: 0
GRB_RA:          190.385d {+12h 41m 32s} (J2000),
                 190.534d {+12h 42m 08s} (current),
                 189.895d {+12h 39m 35s} (1950)
GRB_DEC:         +71.824d {+71d 49' 26"} (J2000),
                 +71.740d {+71d 44' 25"} (current),
                 +72.098d {+72d 05' 52"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1104 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
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:        17125 TJD;   103 DOY;   15/04/13
GRB_TIME:        50098.55 SOD {13:54:58.55} UT
GRB_PHI:         144.56 [deg]
GRB_THETA:        36.14 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.29 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -3  +0  +0 +15  +0 
SUN_POSTN:        21.59d {+01h 26m 21s}   +9.06d {+09d 03' 42"}
SUN_DIST:         98.87 [deg]   Sun_angle= -11.3 [hr] (East of Sun)
MOON_POSTN:      313.06d {+20h 52m 14s}  -13.00d {-13d 00' 08"}
MOON_DIST:       112.20 [deg]
MOON_ILLUM:      34 [%]
GAL_COORDS:      124.03, 45.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      133.24, 63.39 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 320.55,20.26 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 13 Apr 15 14:27:06 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     637899,   Seg_Num: 0
GRB_RA:          190.385d {+12h 41m 32s} (J2000),
                 190.534d {+12h 42m 08s} (current),
                 189.895d {+12h 39m 35s} (1950)
GRB_DEC:         +71.824d {+71d 49' 26"} (J2000),
                 +71.740d {+71d 44' 25"} (current),
                 +72.098d {+72d 05' 52"} (1950)
GRB_DATE:        17125 TJD;   103 DOY;   15/04/13
GRB_TIME:        50098.55 SOD {13:54:58.55} UT
TRIGGER_INDEX:   20000
GRB_PHI:         144.56 [deg]
GRB_THETA:        36.14 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.29 [sigma]
LC_URL:          sw00637899000msb.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:
Mon Apr 13 10:27:22 EDT 2015