TDRSS lightcurve for Trigger=863053

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 24 Sep 18 00:14:56 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     863053,   Seg_Num: 0
GRB_RA:          267.574d {+17h 50m 18s} (J2000),
                 267.879d {+17h 51m 31s} (current),
                 266.762d {+17h 47m 03s} (1950)
GRB_DEC:         -31.767d {-31d 46' 01"} (J2000),
                 -31.771d {-31d 46' 15"} (current),
                 -31.753d {-31d 45' 11"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=8467 [image_cnts]
TRIGGER_DUR:     760.000 [sec]   (=12.7 [min])
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:        18385 TJD;   267 DOY;   18/09/24
GRB_TIME:        90.35 SOD {00:01:30.35} UT
GRB_PHI:         168.97 [deg]
GRB_THETA:        18.51 [deg]
SOLN_STATUS:     0x1D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.10 [sigma]
MERIT_PARAMS:     +0  +0 +124  +8  +1  -3  +0  +1  -5  +0 
SUN_POSTN:       180.84d {+12h 03m 22s}   -0.36d {-00d 21' 49"}
SUN_DIST:         87.29 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      350.58d {+23h 22m 19s}   -7.79d {-07d 47' 34"}
MOON_DIST:        79.72 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      358.10, -2.33 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      267.92, -8.35 [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 matches a source in the on-board catalog: Num=15714=(null) (a Fluence Trigger).  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        This trigger occurred at longitude,latitude = 265.68,13.13 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 24 Sep 18 00:28:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     863053,   Seg_Num: 0
GRB_RA:          267.574d {+17h 50m 18s} (J2000),
                 267.879d {+17h 51m 31s} (current),
                 266.762d {+17h 47m 03s} (1950)
GRB_DEC:         -31.767d {-31d 46' 01"} (J2000),
                 -31.771d {-31d 46' 15"} (current),
                 -31.753d {-31d 45' 11"} (1950)
GRB_DATE:        18385 TJD;   267 DOY;   18/09/24
GRB_TIME:        90.35 SOD {00:01:30.35} UT
TRIGGER_INDEX:   20000
GRB_PHI:         168.97 [deg]
GRB_THETA:        18.51 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     760.000 [sec]   (=12.7 [min])
SOLN_STATUS:     0x1D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.10 [sigma]
LC_URL:          sw00863053000msb.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

Plot creation:
Sun Sep 23 20:29:03 EDT 2018