TDRSS lightcurve for Trigger=868984

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 27 Oct 18 01:49:59 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     868984,   Seg_Num: 0
GRB_RA:          225.383d {+15h 01m 32s} (J2000),
                 225.579d {+15h 02m 19s} (current),
                 224.861d {+14h 59m 27s} (1950)
GRB_DEC:         +30.891d {+30d 53' 28"} (J2000),
                 +30.818d {+30d 49' 04"} (current),
                 +31.088d {+31d 05' 15"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       17622 [cnts]    Image_Peak=399 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   477     E_range: 25-100 keV
BKG_INTEN:       123053 [cnts]
BKG_TIME:        6450.18 SOD {01:47:30.18} UT
BKG_DUR:         64 [sec]
GRB_DATE:        18418 TJD;   300 DOY;   18/10/27
GRB_TIME:        6539.39 SOD {01:48:59.39} UT
GRB_PHI:         -12.77 [deg]
GRB_THETA:        23.49 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     6.63 [sigma]
IMAGE_SIGNIF:    7.88 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +2  -2 -100  +0 -69  +0 
SUN_POSTN:       211.36d {+14h 05m 27s}  -12.71d {-12d 42' 46"}
SUN_DIST:         45.63 [deg]   Sun_angle= -0.9 [hr] (East of Sun)
MOON_POSTN:       62.30d {+04h 09m 11s}  +16.65d {+16d 38' 51"}
MOON_DIST:       129.89 [deg]
MOON_ILLUM:      93 [%]
GAL_COORDS:       48.32, 61.41 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      210.58, 45.56 [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 = 172.84,-8.49 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(48.0<100sec) coincident with the FERMI_GBM event (trignum=562297792).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 27 Oct 18 02:06:36 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     868984,   Seg_Num: 0
GRB_RA:          225.383d {+15h 01m 32s} (J2000),
                 225.579d {+15h 02m 19s} (current),
                 224.861d {+14h 59m 27s} (1950)
GRB_DEC:         +30.891d {+30d 53' 28"} (J2000),
                 +30.818d {+30d 49' 04"} (current),
                 +31.088d {+31d 05' 15"} (1950)
GRB_DATE:        18418 TJD;   300 DOY;   18/10/27
GRB_TIME:        6539.39 SOD {01:48:59.39} UT
TRIGGER_INDEX:   477
GRB_PHI:         -12.77 [deg]
GRB_THETA:        23.49 [deg]
DELTA_TIME:      38.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     6.63 [sigma]
IMAGE_SIGNIF:    7.88 [sigma]
LC_URL:          sw00868984000msb.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:
Fri Oct 26 22:07:04 EDT 2018