TDRSS lightcurve for Trigger=842475

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 18 Jun 18 00:43:25 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     842475,   Seg_Num: 0
GRB_RA:          169.937d {+11h 19m 45s} (J2000),
                 170.234d {+11h 20m 56s} (current),
                 169.120d {+11h 16m 29s} (1950)
GRB_DEC:         +73.848d {+73d 50' 52"} (J2000),
                 +73.747d {+73d 44' 48"} (current),
                 +74.122d {+74d 07' 18"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       785 [cnts]    Image_Peak=96 [image_cnts]
TRIGGER_DUR:     0.064 [sec] 
TRIGGER_INDEX:   10427     E_range: 50-350 keV
BKG_INTEN:       21035 [cnts]
BKG_TIME:        2578.87 SOD {00:42:58.87} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18287 TJD;   169 DOY;   18/06/18
GRB_TIME:        2592.95 SOD {00:43:12.95} UT
GRB_PHI:          20.64 [deg]
GRB_THETA:        29.80 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     43.84 [sigma]
IMAGE_SIGNIF:    9.55 [sigma]
MERIT_PARAMS:     +1  +0  +0  -4  +3  +0  +0  +0 -41  +0 
SUN_POSTN:        86.48d {+05h 45m 55s}  +23.40d {+23d 23' 48"}
SUN_DIST:         65.85 [deg]   Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN:      148.08d {+09h 52m 19s}  +14.54d {+14d 32' 06"}
MOON_DIST:        60.54 [deg]
MOON_ILLUM:      24 [%]
GAL_COORDS:      131.28, 41.76 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      122.70, 59.53 [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 = 238.19,17.92 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 18 Jun 18 01:07:15 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     842475,   Seg_Num: 0
GRB_RA:          169.937d {+11h 19m 45s} (J2000),
                 170.234d {+11h 20m 56s} (current),
                 169.120d {+11h 16m 29s} (1950)
GRB_DEC:         +73.848d {+73d 50' 52"} (J2000),
                 +73.747d {+73d 44' 48"} (current),
                 +74.122d {+74d 07' 18"} (1950)
GRB_DATE:        18287 TJD;   169 DOY;   18/06/18
GRB_TIME:        2593.10 SOD {00:43:13.10} UT
TRIGGER_INDEX:   10427
GRB_PHI:          20.64 [deg]
GRB_THETA:        29.80 [deg]
DELTA_TIME:      17.00 [sec]
TRIGGER_DUR:     0.064 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     43.84 [sigma]
IMAGE_SIGNIF:    9.55 [sigma]
LC_URL:          sw00842475000msb.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

Plot creation:
Sun Jun 17 21:07:43 EDT 2018