TDRSS lightcurve for Trigger=868427

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 23 Oct 18 02:05:53 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     868427,   Seg_Num: 0
GRB_RA:          248.329d {+16h 33m 19s} (J2000),
                 248.535d {+16h 34m 08s} (current),
                 247.780d {+16h 31m 07s} (1950)
GRB_DEC:         +19.564d {+19d 33' 51"} (J2000),
                 +19.526d {+19d 31' 32"} (current),
                 +19.668d {+19d 40' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1680 [image_cnts]
TRIGGER_DUR:     96.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        18414 TJD;   296 DOY;   18/10/23
GRB_TIME:        7442.20 SOD {02:04:02.20} UT
GRB_PHI:         -25.56 [deg]
GRB_THETA:        40.11 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
MERIT_PARAMS:     +1  +0  +0  +7  +1  -3  +0  +0 -63  +0 
SUN_POSTN:       207.55d {+13h 50m 12s}  -11.34d {-11d 20' 11"}
SUN_DIST:         50.81 [deg]   Sun_angle= -2.7 [hr] (East of Sun)
MOON_POSTN:       11.13d {+00h 44m 32s}   -0.22d {-00d 13' 21"}
MOON_DIST:       120.60 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       36.95, 38.91 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      242.56, 40.96 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 148.85,-19.85 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 23 Oct 18 02:23:46 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     868427,   Seg_Num: 0
GRB_RA:          248.329d {+16h 33m 19s} (J2000),
                 248.535d {+16h 34m 08s} (current),
                 247.780d {+16h 31m 07s} (1950)
GRB_DEC:         +19.564d {+19d 33' 51"} (J2000),
                 +19.526d {+19d 31' 32"} (current),
                 +19.668d {+19d 40' 05"} (1950)
GRB_DATE:        18414 TJD;   296 DOY;   18/10/23
GRB_TIME:        7442.20 SOD {02:04:02.20} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -25.56 [deg]
GRB_THETA:        40.11 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     96.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
LC_URL:          sw00868427000msb.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 Oct 22 22:24:03 EDT 2018