TDRSS lightcurve for Trigger=637212

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Apr 15 18:22:16 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     637212,   Seg_Num: 0
GRB_RA:          267.000d {+17h 48m 00s} (J2000),
                 267.235d {+17h 48m 56s} (current),
                 266.231d {+17h 44m 56s} (1950)
GRB_DEC:         -24.772d {-24d 46' 18"} (J2000),
                 -24.776d {-24d 46' 33"} (current),
                 -24.755d {-24d 45' 19"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=3444 [image_cnts]
TRIGGER_DUR:     384.000 [sec]   (=6.4 [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:        17117 TJD;    95 DOY;   15/04/05
GRB_TIME:        65706.59 SOD {18:15:06.59} UT
GRB_PHI:         -112.36 [deg]
GRB_THETA:        18.85 [deg]
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.50 [sigma]
MERIT_PARAMS:     +0  +0 +123  +7  +1  -4  +0  +1 +31  +0 
SUN_POSTN:        14.42d {+00h 57m 40s}   +6.16d {+06d 09' 32"}
SUN_DIST:        108.16 [deg]   Sun_angle= 7.1 [hr] (West of Sun)
MOON_POSTN:      208.21d {+13h 52m 49s}   -9.72d {-09d 43' 10"}
MOON_DIST:        57.91 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:        3.84,  1.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      267.28, -1.36 [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 matches a source in the on-board catalog: Num=10686=SAX_J1753.5-234,   delta=1.579 [deg].  
COMMENTS:        This matches a source in the ground catalog: Terzan_5,   delta=0.020 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 96.27,-13.94 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Apr 15 18:35:13 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     637212,   Seg_Num: 0
GRB_RA:          267.000d {+17h 48m 00s} (J2000),
                 267.235d {+17h 48m 56s} (current),
                 266.231d {+17h 44m 56s} (1950)
GRB_DEC:         -24.772d {-24d 46' 18"} (J2000),
                 -24.776d {-24d 46' 33"} (current),
                 -24.755d {-24d 45' 19"} (1950)
GRB_DATE:        17117 TJD;    95 DOY;   15/04/05
GRB_TIME:        65706.59 SOD {18:15:06.59} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -112.36 [deg]
GRB_THETA:        18.85 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     384.000 [sec]   (=6.4 [min])
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.50 [sigma]
LC_URL:          sw00637212000msb.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

Extended TDRSS lc No.5

Plot creation:
Sun Apr  5 14:36:03 EDT 2015