TDRSS lightcurve for Trigger=847216

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 11 Jul 18 07:28:58 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     847216,   Seg_Num: 0
GRB_RA:          249.658d {+16h 38m 38s} (J2000),
                 249.932d {+16h 39m 44s} (current),
                 248.919d {+16h 35m 40s} (1950)
GRB_DEC:         -20.833d {-20d 50' 00"} (J2000),
                 -20.869d {-20d 52' 07"} (current),
                 -20.735d {-20d 44' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=44218 [image_cnts]
TRIGGER_DUR:     2344.000 [sec]   (=39.1 [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:        18310 TJD;   192 DOY;   18/07/11
GRB_TIME:        24530.75 SOD {06:48:50.75} UT
GRB_PHI:         157.84 [deg]
GRB_THETA:        37.54 [deg]
SOLN_STATUS:     0x113
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    18.33 [sigma]
MERIT_PARAMS:     +1  +0  +0  +8  +1  +6  +0  +1 +78  +0 
SUN_POSTN:       110.54d {+07h 22m 09s}  +22.09d {+22d 05' 38"}
SUN_DIST:        142.31 [deg]   Sun_angle= -9.3 [hr] (East of Sun)
MOON_POSTN:       82.99d {+05h 31m 59s}  +19.80d {+19d 47' 47"}
MOON_DIST:       167.71 [deg]
MOON_ILLUM:      5 [%]
GAL_COORDS:      357.82, 17.06 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      251.04,  1.28 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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: IGR J16385-2057,   delta=0.115 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 313.00,18.06 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 11 Jul 18 07:37:18 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     847216,   Seg_Num: 0
GRB_RA:          249.658d {+16h 38m 38s} (J2000),
                 249.932d {+16h 39m 44s} (current),
                 248.919d {+16h 35m 40s} (1950)
GRB_DEC:         -20.833d {-20d 50' 00"} (J2000),
                 -20.869d {-20d 52' 07"} (current),
                 -20.735d {-20d 44' 05"} (1950)
GRB_DATE:        18310 TJD;   192 DOY;   18/07/11
GRB_TIME:        24530.75 SOD {06:48:50.75} UT
TRIGGER_INDEX:   20000
GRB_PHI:         157.84 [deg]
GRB_THETA:        37.54 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     2344.000 [sec]   (=39.1 [min])
SOLN_STATUS:     0x113
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    18.33 [sigma]
LC_URL:          sw00847216000msb.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

Plot creation:
Wed Jul 11 03:37:43 EDT 2018