TDRSS lightcurve for Trigger=849018

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 21 Jul 18 11:07:10 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     849018,   Seg_Num: 0
GRB_RA:          347.695d {+23h 10m 47s} (J2000),
                 347.931d {+23h 11m 43s} (current),
                 347.059d {+23h 08m 14s} (1950)
GRB_DEC:          +4.880d {+04d 52' 47"} (J2000),
                  +4.981d {+04d 58' 50"} (current),
                  +4.608d {+04d 36' 29"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3334 [cnts]    Image_Peak=174 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       20057 [cnts]
BKG_TIME:        39994.70 SOD {11:06:34.70} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18320 TJD;   202 DOY;   18/07/21
GRB_TIME:        40008.39 SOD {11:06:48.39} UT
GRB_PHI:         -177.97 [deg]
GRB_THETA:         5.16 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.28 [sigma]
IMAGE_SIGNIF:    7.61 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -2  +0  +0 +61  +0 
SUN_POSTN:       120.78d {+08h 03m 07s}  +20.43d {+20d 25' 37"}
SUN_DIST:        127.20 [deg]   Sun_angle= 8.9 [hr] (West of Sun)
MOON_POSTN:      227.21d {+15h 08m 52s}  -12.22d {-12d 13' 21"}
MOON_DIST:       121.04 [deg]
MOON_ILLUM:      67 [%]
GAL_COORDS:       81.90,-49.80 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      350.61,  9.35 [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 = 195.88,20.16 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 21 Jul 18 11:23:26 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     849018,   Seg_Num: 0
GRB_RA:          347.695d {+23h 10m 47s} (J2000),
                 347.931d {+23h 11m 43s} (current),
                 347.059d {+23h 08m 14s} (1950)
GRB_DEC:          +4.880d {+04d 52' 47"} (J2000),
                  +4.981d {+04d 58' 50"} (current),
                  +4.608d {+04d 36' 29"} (1950)
GRB_DATE:        18320 TJD;   202 DOY;   18/07/21
GRB_TIME:        40008.39 SOD {11:06:48.39} UT
TRIGGER_INDEX:   146
GRB_PHI:         -177.97 [deg]
GRB_THETA:         5.16 [deg]
DELTA_TIME:      71.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.28 [sigma]
IMAGE_SIGNIF:    7.61 [sigma]
LC_URL:          sw00849018000msb.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

Plot creation:
Sat Jul 21 07:23:42 EDT 2018