TDRSS lightcurve for Trigger=848932

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 20 Jul 18 22:25:16 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     848932,   Seg_Num: 0
GRB_RA:          265.623d {+17h 42m 30s} (J2000),
                 265.913d {+17h 43m 39s} (current),
                 264.844d {+17h 39m 23s} (1950)
GRB_DEC:         -26.584d {-26d 35' 01"} (J2000),
                 -26.591d {-26d 35' 28"} (current),
                 -26.561d {-26d 33' 37"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4022 [cnts]    Image_Peak=228 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       22991 [cnts]
BKG_TIME:        80618.70 SOD {22:23:38.70} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18319 TJD;   201 DOY;   18/07/20
GRB_TIME:        80637.64 SOD {22:23:57.64} UT
GRB_PHI:          -2.02 [deg]
GRB_THETA:        19.23 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     18.60 [sigma]
IMAGE_SIGNIF:    9.38 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +0  +0  +1 +84  +0 
SUN_POSTN:       120.25d {+08h 01m 00s}  +20.53d {+20d 31' 45"}
SUN_DIST:        148.05 [deg]   Sun_angle= -9.7 [hr] (East of Sun)
MOON_POSTN:      220.76d {+14h 43m 01s}  -10.23d {-10d 13' 51"}
MOON_DIST:        45.57 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:        1.64,  1.82 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      266.08, -3.20 [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 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 = 35.97,20.39 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 20 Jul 18 22:55:52 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     848932,   Seg_Num: 0
GRB_RA:          265.623d {+17h 42m 30s} (J2000),
                 265.913d {+17h 43m 39s} (current),
                 264.844d {+17h 39m 23s} (1950)
GRB_DEC:         -26.584d {-26d 35' 01"} (J2000),
                 -26.591d {-26d 35' 28"} (current),
                 -26.561d {-26d 33' 37"} (1950)
GRB_DATE:        18319 TJD;   201 DOY;   18/07/20
GRB_TIME:        80637.64 SOD {22:23:57.64} UT
TRIGGER_INDEX:   146
GRB_PHI:          -2.02 [deg]
GRB_THETA:        19.23 [deg]
DELTA_TIME:      26.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     18.60 [sigma]
IMAGE_SIGNIF:    9.38 [sigma]
LC_URL:          sw00848932000msb.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

Plot creation:
Fri Jul 20 18:56:02 EDT 2018