TDRSS lightcurve for Trigger=866783

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 13 Oct 18 02:40:00 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     866783,   Seg_Num: 0
GRB_RA:          207.601d {+13h 50m 24s} (J2000),
                 207.800d {+13h 51m 12s} (current),
                 207.069d {+13h 48m 16s} (1950)
GRB_DEC:         +40.179d {+40d 10' 43"} (J2000),
                 +40.086d {+40d 05' 10"} (current),
                 +40.426d {+40d 25' 34"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4620 [cnts]    Image_Peak=183 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   473     E_range: 25-100 keV
BKG_INTEN:       47937 [cnts]
BKG_TIME:        9538.25 SOD {02:38:58.25} UT
BKG_DUR:         24 [sec]
GRB_DATE:        18404 TJD;   286 DOY;   18/10/13
GRB_TIME:        9569.67 SOD {02:39:29.67} UT
GRB_PHI:         -140.27 [deg]
GRB_THETA:        25.01 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     7.54 [sigma]
IMAGE_SIGNIF:    7.72 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  -2  +0  +0 -66  +0 
SUN_POSTN:       198.20d {+13h 12m 49s}   -7.71d {-07d 42' 41"}
SUN_DIST:         48.61 [deg]   Sun_angle= -0.6 [hr] (East of Sun)
MOON_POSTN:      247.99d {+16h 31m 57s}  -17.85d {-17d 50' 50"}
MOON_DIST:        68.96 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:       83.60, 72.14 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      185.75, 47.12 [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 = 71.27,14.71 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 13 Oct 18 03:06:05 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     866783,   Seg_Num: 0
GRB_RA:          207.601d {+13h 50m 24s} (J2000),
                 207.800d {+13h 51m 12s} (current),
                 207.069d {+13h 48m 16s} (1950)
GRB_DEC:         +40.179d {+40d 10' 43"} (J2000),
                 +40.086d {+40d 05' 10"} (current),
                 +40.426d {+40d 25' 34"} (1950)
GRB_DATE:        18404 TJD;   286 DOY;   18/10/13
GRB_TIME:        9569.67 SOD {02:39:29.67} UT
TRIGGER_INDEX:   473
GRB_PHI:         -140.27 [deg]
GRB_THETA:        25.01 [deg]
DELTA_TIME:      58.00 [sec]
TRIGGER_DUR:     
 

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

Plot creation:
Fri Oct 12 23:06:23 EDT 2018