TDRSS lightcurve for Trigger=781740

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 23 Oct 17 08:34:14 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     781740,   Seg_Num: 0
GRB_RA:           10.633d {+00h 42m 32s} (J2000),
                  10.877d {+00h 43m 31s} (current),
                   9.949d {+00h 39m 48s} (1950)
GRB_DEC:         +41.165d {+41d 09' 54"} (J2000),
                 +41.262d {+41d 15' 45"} (current),
                 +40.891d {+40d 53' 28"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       5812 [cnts]    Image_Peak=150 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   137     E_range: 15-50 keV
BKG_INTEN:       31369 [cnts]
BKG_TIME:        30820.11 SOD {08:33:40.11} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18049 TJD;   296 DOY;   17/10/23
GRB_TIME:        30838.67 SOD {08:33:58.67} UT
GRB_PHI:         110.03 [deg]
GRB_THETA:        23.17 [deg]
SOLN_STATUS:     0x1098D
RATE_SIGNIF:     26.57 [sigma]
IMAGE_SIGNIF:    5.93 [sigma]
MERIT_PARAMS:     +0  +0 +125  +0  +1  -5  +0  +0 +83  +1 
SUN_POSTN:       208.04d {+13h 52m 08s}  -11.52d {-11d 30' 57"}
SUN_DIST:        146.66 [deg]   Sun_angle= -10.9 [hr] (East of Sun)
MOON_POSTN:      249.55d {+16h 38m 11s}  -17.35d {-17d 20' 48"}
MOON_DIST:       124.73 [deg]
MOON_ILLUM:      12 [%]
GAL_COORDS:      121.13,-21.68 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       27.75, 33.28 [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 is a low-flux event whose position matches one of the nearby galaxy sources in the on-board catalog!  
COMMENTS:        This matches a source in the on-board catalog: Num=14037=M31_0,0,   delta=0.111 [deg].  
COMMENTS:        This matches a source in the ground catalog: M31_0,0,   delta=0.111 [deg].  
COMMENTS:        The position is inside the galaxy NGC224 (of total mag=3.50 and dia=178.00 arcmin).  
COMMENTS:        There is a 0.03% probability that this would happen by chance coincidence.  
COMMENTS:        This is a GRB in nearby galaxy or it is noise.

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 23 Oct 17 08:51:52 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     781740,   Seg_Num: 0
GRB_RA:           10.633d {+00h 42m 32s} (J2000),
                  10.877d {+00h 43m 31s} (current),
                   9.949d {+00h 39m 48s} (1950)
GRB_DEC:         +41.165d {+41d 09' 54"} (J2000),
                 +41.262d {+41d 15' 45"} (current),
                 +40.891d {+40d 53' 28"} (1950)
GRB_DATE:        18049 TJD;   296 DOY;   17/10/23
GRB_TIME:        30838.67 SOD {08:33:58.67} UT
TRIGGER_INDEX:   137
GRB_PHI:         110.03 [deg]
GRB_THETA:        23.17 [deg]
DELTA_TIME:      64.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x98D
RATE_SIGNIF:     26.57 [sigma]
IMAGE_SIGNIF:    5.93 [sigma]
LC_URL:          sw00781740000msb.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

Plot creation:
Mon Oct 23 04:52:03 EDT 2017