TDRSS lightcurve for Trigger=831816

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 May 18 20:16:27 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     831816,   Seg_Num: 0
GRB_RA:           77.989d {+05h 11m 57s} (J2000),
                  78.033d {+05h 12m 08s} (current),
                  77.868d {+05h 11m 28s} (1950)
GRB_DEC:         -62.335d {-62d 20' 05"} (J2000),
                 -62.314d {-62d 18' 49"} (current),
                 -62.393d {-62d 23' 35"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       11349 [cnts]    Image_Peak=347 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   300     E_range: 25-100 keV
BKG_INTEN:       98014 [cnts]
BKG_TIME:        72883.07 SOD {20:14:43.07} UT
BKG_DUR:         40 [sec]
GRB_DATE:        18248 TJD;   130 DOY;   18/05/10
GRB_TIME:        72942.27 SOD {20:15:42.27} UT
GRB_PHI:         -103.85 [deg]
GRB_THETA:        29.63 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.64 [sigma]
IMAGE_SIGNIF:    9.44 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  +0  +0  +0 -11  +0 
SUN_POSTN:        47.68d {+03h 10m 43s}  +17.77d {+17d 46' 19"}
SUN_DIST:         83.60 [deg]   Sun_angle= -2.0 [hr] (East of Sun)
MOON_POSTN:      353.15d {+23h 32m 36s}   -6.60d {-06d 35' 54"}
MOON_DIST:        81.78 [deg]
MOON_ILLUM:      24 [%]
GAL_COORDS:      271.86,-35.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       33.67,-83.33 [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 = 1.87,3.35 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 May 18 20:32:46 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     831816,   Seg_Num: 0
GRB_RA:           77.989d {+05h 11m 57s} (J2000),
                  78.033d {+05h 12m 08s} (current),
                  77.868d {+05h 11m 28s} (1950)
GRB_DEC:         -62.335d {-62d 20' 05"} (J2000),
                 -62.314d {-62d 18' 49"} (current),
                 -62.393d {-62d 23' 35"} (1950)
GRB_DATE:        18248 TJD;   130 DOY;   18/05/10
GRB_TIME:        72942.27 SOD {20:15:42.27} UT
TRIGGER_INDEX:   300
GRB_PHI:         -103.85 [deg]
GRB_THETA:        29.63 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.64 [sigma]
IMAGE_SIGNIF:    9.44 [sigma]
LC_URL:          sw00831816000msb.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:
Thu May 10 16:33:03 EDT 2018