TDRSS lightcurve for Trigger=846868

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 09 Jul 18 10:52:53 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     846868,   Seg_Num: 0
GRB_RA:           38.119d {+02h 32m 29s} (J2000),
                  38.469d {+02h 33m 53s} (current),
                  37.181d {+02h 28m 43s} (1950)
GRB_DEC:         +60.372d {+60d 22' 18"} (J2000),
                 +60.453d {+60d 27' 09"} (current),
                 +60.151d {+60d 09' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       24235 [cnts]    Image_Peak=518 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   343     E_range: 50-350 keV
BKG_INTEN:       163404 [cnts]
BKG_TIME:        39026.76 SOD {10:50:26.76} UT
BKG_DUR:         64 [sec]
GRB_DATE:        18308 TJD;   190 DOY;   18/07/09
GRB_TIME:        39120.26 SOD {10:52:00.26} UT
GRB_PHI:         -117.58 [deg]
GRB_THETA:        20.04 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.55 [sigma]
IMAGE_SIGNIF:    9.13 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +3  +0  +0  +1 -48  +0 
SUN_POSTN:       108.64d {+07h 14m 34s}  +22.33d {+22d 19' 49"}
SUN_DIST:         60.97 [deg]   Sun_angle= 4.7 [hr] (West of Sun)
MOON_POSTN:       55.14d {+03h 40m 33s}  +14.57d {+14d 34' 16"}
MOON_DIST:        47.46 [deg]
MOON_ILLUM:      19 [%]
GAL_COORDS:      135.11, -0.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       58.14, 42.54 [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 = 270.00,16.82 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 09 Jul 18 11:12:30 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     846868,   Seg_Num: 0
GRB_RA:           38.119d {+02h 32m 29s} (J2000),
                  38.469d {+02h 33m 53s} (current),
                  37.181d {+02h 28m 43s} (1950)
GRB_DEC:         +60.372d {+60d 22' 18"} (J2000),
                 +60.453d {+60d 27' 09"} (current),
                 +60.151d {+60d 09' 05"} (1950)
GRB_DATE:        18308 TJD;   190 DOY;   18/07/09
GRB_TIME:        39120.26 SOD {10:52:00.26} UT
TRIGGER_INDEX:   343
GRB_PHI:         -117.58 [deg]
GRB_THETA:        20.04 [deg]
DELTA_TIME:      -70.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.55 [sigma]
IMAGE_SIGNIF:    9.13 [sigma]
LC_URL:          sw00846868000msb.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:
Mon Jul  9 07:12:42 EDT 2018