TDRSS lightcurve for Trigger=751253

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 03 May 17 20:34:09 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     751253,   Seg_Num: 0
GRB_RA:           83.848d {+05h 35m 24s} (J2000),
                  84.109d {+05h 36m 26s} (current),
                  83.096d {+05h 32m 23s} (1950)
GRB_DEC:         +21.957d {+21d 57' 25"} (J2000),
                 +21.967d {+21d 58' 01"} (current),
                 +21.925d {+21d 55' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=5626 [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:        17876 TJD;   123 DOY;   17/05/03
GRB_TIME:        73972.99 SOD {20:32:52.99} UT
GRB_PHI:         -117.74 [deg]
GRB_THETA:        15.48 [deg]
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    20.96 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +7 -100  +1 -75  +0 
SUN_POSTN:        41.14d {+02h 44m 33s}  +15.92d {+15d 55' 03"}
SUN_DIST:         40.96 [deg]   Sun_angle= -2.9 [hr] (East of Sun)
MOON_POSTN:      144.88d {+09h 39m 31s}  +13.18d {+13d 10' 56"}
MOON_DIST:        58.25 [deg]
MOON_ILLUM:      58 [%]
GAL_COORDS:      184.71, -5.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       84.29, -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 does not match any source in the on-board catalog.  
COMMENTS:        This matches a source in the ground catalog: Crab,   delta=0.208 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 303.75,10.56 [deg].  
COMMENTS:           
COMMENTS:        This trigger occured while the StarTracker had lost lock, so it is possibly bogus.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 03 May 17 20:49:41 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     751253,   Seg_Num: 0
GRB_RA:           83.848d {+05h 35m 24s} (J2000),
                  84.109d {+05h 36m 26s} (current),
                  83.096d {+05h 32m 23s} (1950)
GRB_DEC:         +21.957d {+21d 57' 25"} (J2000),
                 +21.967d {+21d 58' 01"} (current),
                 +21.925d {+21d 55' 31"} (1950)
GRB_DATE:        17876 TJD;   123 DOY;   17/05/03
GRB_TIME:        73972.99 SOD {20:32:52.99} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -117.74 [deg]
GRB_THETA:        15.48 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    20.96 [sigma]
LC_URL:          sw00751253000msb.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

Plot creation:
Wed May  3 17:03:21 EDT 2017