TDRSS lightcurve for Trigger=638946

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 24 Apr 15 07:43:10 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     638946,   Seg_Num: 0
GRB_RA:          152.312d {+10h 09m 15s} (J2000),
                 152.488d {+10h 09m 57s} (current),
                 151.737d {+10h 06m 57s} (1950)
GRB_DEC:         -26.647d {-26d 38' 47"} (J2000),
                 -26.722d {-26d 43' 19"} (current),
                 -26.401d {-26d 24' 02"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2964 [cnts]    Image_Peak=333 [image_cnts]
TRIGGER_DUR:     0.064 [sec] 
TRIGGER_INDEX:   10427     E_range: 50-350 keV
BKG_INTEN:       16171 [cnts]
BKG_TIME:        27762.51 SOD {07:42:42.51} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17136 TJD;   114 DOY;   15/04/24
GRB_TIME:        27776.91 SOD {07:42:56.91} UT
GRB_PHI:         -175.16 [deg]
GRB_THETA:        34.06 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     250.96 [sigma]
IMAGE_SIGNIF:    15.22 [sigma]
MERIT_PARAMS:     +1  +0  +0  -4  +3  +4  +0  +0 +54  +0 
SUN_POSTN:        31.58d {+02h 06m 20s}  +12.79d {+12d 47' 29"}
SUN_DIST:        123.16 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      105.48d {+07h 01m 54s}  +17.40d {+17d 23' 47"}
MOON_DIST:        63.47 [deg]
MOON_ILLUM:      34 [%]
GAL_COORDS:      263.59, 23.57 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      165.64,-35.22 [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 = 202.28,-14.61 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 24 Apr 15 08:02:32 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     638946,   Seg_Num: 0
GRB_RA:          152.312d {+10h 09m 15s} (J2000),
                 152.488d {+10h 09m 57s} (current),
                 151.737d {+10h 06m 57s} (1950)
GRB_DEC:         -26.647d {-26d 38' 47"} (J2000),
                 -26.722d {-26d 43' 19"} (current),
                 -26.401d {-26d 24' 02"} (1950)
GRB_DATE:        17136 TJD;   114 DOY;   15/04/24
GRB_TIME:        27777.07 SOD {07:42:57.07} UT
TRIGGER_INDEX:   10427
GRB_PHI:         -175.16 [deg]
GRB_THETA:        34.06 [deg]
DELTA_TIME:      -15.00 [sec]
TRIGGER_DUR:     0.064 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     250.96 [sigma]
IMAGE_SIGNIF:    15.22 [sigma]
LC_URL:          sw00638946000msb.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 Apr 24 04:02:43 EDT 2015